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  • Articles  (189)
  • heavy metals  (121)
  • air pollution  (74)
  • Energy, Environment Protection, Nuclear Power Engineering  (186)
  • Electrical Engineering, Measurement and Control Technology  (3)
  • 1
    Electronic Resource
    Electronic Resource
    An apoenzyme thermistor microanalysis for zinc(II) ions with use of an immobilized alkaline phosphatase reactor in a flow system
    Amsterdam : Elsevier
    Biosensors and Bioelectronics 6 (1991), S. 375-379 
    Details
    ISSN: 0956-5663
    Keywords: alkaline phosphatase ; apoenzyme ; apoenzyme thermistor ; biosensor ; calorimetric biosensor ; enzyme thermistor ; flow-injection biosensing ; heavy metals ; immobilized enzyme ; metalloenzyme ; microanalysis ; microcalorimetry ; regeneration. ; zinc(II) ions
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Electrical Engineering, Measurement and Control Technology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0956-5663(91)85025-R
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  • 2
    Electronic Resource
    Electronic Resource
    Low-energy electron accelerators for industrial radiation processing
    Amsterdam : Elsevier
    Radiation Physics and Chemistry 42 (1993), S. 525-529 
    Details
    ISSN: 0969-806X
    Keywords: Electron accelerators ; air pollution ; curing ; radiation processing ; trichloroethylene
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0969-806X(93)90302-B
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  • 3
    Electronic Resource
    Electronic Resource
    The response of spruce shoot aphid Cinara pilicornis hartig to ambient and filtered air at two elevations and pollution climates
    Amsterdam : Elsevier
    Environmental Pollution 86 (1994), S. 233-238 
    Details
    ISSN: 0269-7491
    Keywords: Alps ; Norway spruce ; air pollution ; ozone
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0269-7491(94)90195-3
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  • 4
    Electronic Resource
    Electronic Resource
    Distribution and coassociations of selected metals in seals of the Antarctic
    Amsterdam : Elsevier
    Environmental Pollution 83 (1994), S. 341-349 
    Details
    ISSN: 0269-7491
    Keywords: Antarctica ; distribution ; heavy metals ; inter-metal correlation ; seals
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0269-7491(94)90156-2
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  • 5
    Electronic Resource
    Electronic Resource
    Iron content and its relations to the sulphur and titanium contents of epiphytic and terricolous lichens and pine bark in Finland
    Amsterdam : Elsevier
    Environmental Pollution 84 (1994), S. 131-138 
    Details
    ISSN: 0269-7491
    Keywords: air pollution ; bioindicators ; element ratios ; geochemical relations ; heavy metals
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0269-7491(94)90095-7
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  • 6
    Electronic Resource
    Electronic Resource
    Heavy metal concentrations in sediments from Manila Bay, Philippines and inflowing rivers
    Amsterdam : Elsevier
    Environmental Pollution 86 (1994), S. 83-88 
    Details
    ISSN: 0269-7491
    Keywords: Manila Bay ; heavy metals ; historical trend of pollution ; marine sediment ; riverine sediment
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0269-7491(94)90009-4
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  • 7
    Electronic Resource
    Electronic Resource
    Chronic ozone exposure increases the susceptibility of hybrid Populus to disease caused by Septoria Musiva
    Amsterdam : Elsevier
    Environmental Pollution 86 (1994), S. 109-114 
    Details
    ISSN: 0269-7491
    Keywords: air pollution ; canker ; disease ; ozone ; plant
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0269-7491(94)90012-4
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  • 8
    Electronic Resource
    Electronic Resource
    A Risk Assessment for Consumers of Mourning Doves (1998)
    Springer
    Risk analysis 18 (1998), S. 563-573 
    Details
    ISSN: 1539-6924
    Keywords: Risk assessment ; mourning doves ; hunting ; radionuclides ; heavy metals ; lead shot ; cesium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Recreational and subsistence hunters and anglers consume a wide range of species, including birds, mammals, fish and shellfish, some of which represent significant exposure pathways for environmental toxic agents. This study focuses on the Department of Energy's (DOE's) Savannah River Site (SRS), a former nuclear weapons production facility in South Carolina. The potential risk of contaminant intake from consuming mourning doves (Zenaida macroura), the most popular United States game bird, was examined under various risk scenarios. For all of these scenarios we used the mean tissue concentration of six metals (lead, mercury, cadmium, selenium, chromium, manganese) and radiocesium, in doves collected on and near SRS. We also estimated risk to a child consuming doves that had the maximum contaminant level. We used the cancer slope factor for radiocesium, the Environmental Protection Agencies Uptake/Biokinetic model for lead, and published reference doses for the other metals. As a result of our risk assessments we recommend management of water levels in contaminated reservoirs so that lake bed sediments are not exposed to use by gamebirds and other terrestrial wildlife. Particularly, measures should be taken to insure that the hunting public does not have access to such a site. Our data also indicate that doves on popular hunting areas are exposed to excess lead, suggesting that banning lead shot for doves, as has been done for waterfowl, is desirable.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/B:RIAN.0000005931.39844.35
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  • 9
    Electronic Resource
    Electronic Resource
    Methods for Detecting and Estimating Population Threshold Concentrations for Air Pollution–Related Mortality with Exposure Measurement Error (1999)
    Springer
    Risk analysis 19 (1999), S. 487-496 
    Details
    ISSN: 1539-6924
    Keywords: Threshold ; measurement error ; mortality ; air pollution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The association between daily fluctuations in ambient particulate matter and daily variations in nonaccidental mortality have been extensively investigated. Although it is now widely recognized that such an association exists, the form of the concentration–response model is still in question. Linear, no threshold and linear threshold models have been most commonly examined. In this paper we considered methods to detect and estimate threshold concentrations using time series data of daily mortality rates and air pollution concentrations. Because exposure is measured with error, we also considered the influence of measurement error in distinguishing between these two completing model specifications. The methods were illustrated on a 15-year daily time series of nonaccidental mortality and particulate air pollution data in Toronto, Canada. Nonparametric smoothed representations of the association between mortality and air pollution were adequate to graphically distinguish between these two forms. Weighted nonlinear regression methods for relative risk models were adequate to give nearly unbiased estimates of threshold concentrations even under conditions of extreme exposure measurement error. The uncertainty in the threshold estimates increased with the degree of exposure error. Regression models incorporating threshold concentrations could be clearly distinguished from linear relative risk models in the presence of exposure measurement error. The assumption of a linear model given that a threshold model was the correct form usually resulted in overestimates in the number of averted premature deaths, except for low threshold concentrations and large measurement error.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1007008914354
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  • 10
    Electronic Resource
    Electronic Resource
    Electrochemical reduction of chromate ions from dilute artificial solutions in a GBC-reactor (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 411-419 
    Details
    ISSN: 1572-8838
    Keywords: chromate ; gas diffusion electrode ; heavy metals ; mass transfer ; packed bed electrode
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract Reduction of chromate in very low concentration (20 ppm) has been carried out in a GBC reactor. Final concentrations below 0.5 ppm have been achieved at reasonable reaction rates. Spontaneous reduction of chromate by hydrogen in a GBC reactor without an external power source requires careful selection of cathode material. Chemically stable materials such as titanium and RVC tend to passivate when in contact with chromate solution and are unsuitable for use as cathode materials. Graphite, active carbon and graphite felt show no obvious passivation. Reduction of oxidized groups and oxygen are the major side reactions. These occur significantly, especially when using an activated carbon bed as a cathode.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003485509422
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  • 11
    Electronic Resource
    Electronic Resource
    The use of a porous ceramic diaphragm for the removal of metallic impurities from chromium plating baths (1999)
    Springer
    Journal of applied electrochemistry 29 (1999), S. 1129-1132 
    Details
    ISSN: 1572-8838
    Keywords: chrome plating ; heavy metals ; membranes ; porous ceramic diaphragm ; porous pot
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1003544822054
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  • 12
    Electronic Resource
    Electronic Resource
    Interactions of bacteria with cadmium (1992)
    Springer
    Biodegradation 3 (1992), S. 161-170 
    Details
    ISSN: 1572-9729
    Keywords: bioremediation ; cadmium ; heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Cadmium pollution arises mainly from contamination of minerals used in agriculture and from industrial processes. The usual situation is of large volumes of soil and water that are contaminated with low — but significant — concentrations of cadmium. Therefore, detoxification of the polluted water and soil involves the concentration of the metal, or binding it in a way that makes it biologically inert. Cadmium is one of the more toxic metals, that is also carcinogenic and teratogenic. Its effects are short term, even acute (diseases like Itai-itai), or long term. The long term effects are intensified due to the fact that cadmium accumulates in the body. This paper describes a study involving several hundred cadmium-resistant bacterial isolates. These bacteria could be divided into three groups—the largest group consisted of bacteria resistant to cadmium by effluxing it from the cells. The bacteria of the other two groups were capable of binding cadmium or of detoxifying it. We concentrated on one strain that could bind cadmium very efficiently, depending on the bacterial biomass and on the pH. This strain could effectively remove cadmium from contaminated water and soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00129081
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  • 13
    Electronic Resource
    Electronic Resource
    Biotechniques for air pollution control (1993)
    Springer
    Biodegradation 4 (1993), S. 283-301 
    Details
    ISSN: 1572-9729
    Keywords: air pollution ; biofiltration ; bioremediation ; bioscrubbing ; off-gas treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract This paper gives an overview of present biological techniques for the treatment of off-gases and the techniques that are being developed at the moment. The characteristics, advantages, disadvantages, costs and application area are discussed and compared. Biological off-gas treatment is based on the absorption of volatile contaminants in an aqueous phase or biofilm followed by oxidation by the action of microorganisms. Biofilters, bioscrubbers and biotrickling filters are used for elimination of odour and bioconvertable volatile organic and inorganic compounds and are enjoying increasing popularity. This popularity is a result of the low investment and operational costs involved compared to physico-chemical techniques and the elimination efficiencies that can be obtained. The operational envelop is still extending to higher concentrations and gas flow rates (exceeding 200,000 m3 h−1) and a broader spectrum of degradable compounds. Research and development on the use of membranes and the addition of activated carbon or a second liquid phase to the biological systems may lead to a more efficient elimination of hydrophobic compounds and buffering of fluctuating loads. Shorter adaptation periods can be obtained by inoculation with specialized microorganisms. Improved design and operation are made possible by the growing insights in the kinetics and microbiology and supported by the development of models describing biological off-gas treatment. In conclusion, biotechniques are efficient and cost effective in treating off-gases with concentrations of biodegradable contaminants up to 1–5 g/m3. They could play a justified and important role in air pollution control in the coming years.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00695975
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  • 14
    Electronic Resource
    Electronic Resource
    An integrated algal sulphate reducing high rate ponding process for the treatment of acid mine drainage wastewaters (1998)
    Springer
    Biodegradation 9 (1998), S. 247-257 
    Details
    ISSN: 1572-9729
    Keywords: acid mine drainage ; algae ; heavy metals ; high rate algal ponds ; sulphate reducing bacteria ; waste stabilisation ponds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Acid mine drainage pollution may be associated with large water volume flows and exceptionally long periods of time over which the drainage may require treatment. While the use and role of sulphate reducing bacteria has been demonstrated in active treatment systems for acid mine drainage remediation, reactor size requirement and the cost and availability of the carbon and electron donor source are factors which constrain process development. Little attention has focussed on the use of waste stabilisation ponding processes for acid mine drainage treatment. Wastewater ponding is a mature technology for the treatment of large water volumes and its use as a basis for appropriate reactor design for acid mine drainage treatment is described including high rates of sulphate reduction and the precipitation of metal sulphides. Together with the co-disposal of organic wastes, algal biomass is generated as an independent carbon source for SRB production. Treatment of tannery effluent in a custom-designed high rate algal ponding process, and its use as a carbon source in the generation and precipitation of metal sulphides, has been demonstrated through piloting to the implementation of a full-scale process.The treatment of both mine drainage and zinc refinery wastewaters are reported. A complementary role for microalgal production in the generation of alkalinity and bioadsorptive removal of metals has been utilised and an Integrated 'Algal Sulphate Reducing Ponding Process for the Treatment of Acidic and Metal Wastewaters' (ASPAM) has been described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008352008353
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  • 15
    Electronic Resource
    Electronic Resource
    Sulfur metabolism in higher plants: potential for phytoremediation (1998)
    Springer
    Biodegradation 9 (1998), S. 311-318 
    Details
    ISSN: 1572-9729
    Keywords: glucosinolates ; gypsum ; heavy metals ; phyto-extraction ; phytoremediation ; sulfate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Sulfur is a major nutrient for all organisms. Plant species have a high biodiversity in uptake, metabolization and accumulation of sulfur so that there are potentials to use plants for phytoremediation of sulfur-enriched sites. A survey of soils enriched with sulfur either naturally or by human activities shows that a surplus of sulfur is mostly accompanied with a surplus of other chemical elements which may limit phytoremediation because these co-occurring elements are more toxic to plants than sulfur. In addition, the accumulation of the other elements makes the plant material (phyto-extraction) less suitable for the use as fodder and for human consumption.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008250827209
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  • 16
    Electronic Resource
    Electronic Resource
    Prospects for in vivo NMR methods in xenobiotic research in plants (1998)
    Springer
    Biodegradation 9 (1998), S. 411-422 
    Details
    ISSN: 1572-9729
    Keywords: agrochemicals ; heavy metals ; NMR imaging ; NMR spectroscopy ; subcellular compartmentation xenobiotic metabolism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The application of non-invasive nuclear magnetic resonance (NMR) methods in xenobiotic research is reviewed in relation to: (i) the characterisation of the effects of xenobiotics on the metabolism of plants and plant cell suspensions; (ii) the direct detection of xenobiotics and their degradation products in vivo; and (iii) the spatial localisation of xenobiotics and their derivatives at the subcellular and tissue levels. Novel information has been generated by in vivo NMR studies of both agrochemicals and heavy metals, but a lack of generality in the methods makes it difficult to extrapolate from one successful application to the next. In vivo NMR spectroscopy is shown to be informative when a xenobiotic perturbs metabolic pathways that are accessible to the technique, and it is useful for probing the partitioning of paramagnetic metal ions between the cytoplasm and the vacuole. The successful application of 19F NMR to the analysis of plant tissue extracts also suggests that in vivo 19F NMR spectroscopy may have a role in biotransformation studies of fluorinated xenobiotics. In contrast NMR imaging techniques have been little used for xenobiotic research in plants, and while the method has been shown to be capable of monitoring the uptake and translocation of paramagnetic ions in plants, the potential use of high resolution 1H and 19F NMR imaging for mapping agrochemicals in tissues is still in its infancy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008372107739
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  • 17
    Electronic Resource
    Electronic Resource
    Heavy metal bioavailability in a soil affected by mineral sulphides contamination following the mine spillage at Aznalcóllar (Spain) (2003)
    Springer
    Biodegradation 14 (2003), S. 199-205 
    Details
    ISSN: 1572-9729
    Keywords: bioremediation ; heavy metals ; metal availability ; organic matter ; pyrite ; sulphide oxidation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract A field experiment, lasting 14 months, was carried out in order to assess the effect of organic amendment and lime addition on the bioavailability of heavy metals in contaminated soils. The experiment took place in a soil affected by acid, highly toxic pyritic waste from the Aznalcóllar mine (Seville, Spain) in April 1998. The following treatments were applied (3 plots per treatment): cow manure, a mature compost, lime (to plots having pH 〈 4), and control without amendment. During the study two crops of Brassica juncea were grown, with two additions of each organic amendment. Throughout the study, the evolution of soil pH, total and available (DTPA-extractable) heavy metals content (Zn, Cu, Mn, Fe, Pb and Cd), electrical conductivity (EC), soluble sulphates and plant growth and heavy metal uptake were followed. The study indicates that: (1) soil acidification, due to the oxidation of metallic sulphides in the soil, increased heavy metal bioavailability; (2) liming succeeded in controlling the soil acidification; and (3) the organic materials generally promoted fixation of heavy metals in non-available soil fractions, with Cu bioavailability being particularly affected by the organic treatments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1024288505979
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  • 18
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    Deposition gradients and foliar and soil leachate concentrations of air pollutants in Scots pine stands of S.-E. Finland and the Karelian Isthmus, N.-W. Russia (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 1263-1268 
    Details
    ISSN: 1573-2932
    Keywords: air pollution ; sulphur ; nitrogen ; base cations ; throughfall ; Scots pine ; needle elements ; soil leachate ; N.-W. Russia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Bulk precipitation and throughfall analyses in 50–100-year-old Scots pine stands revealed decreasing sulphur, nitrogen, calcium and magnesium deposition gradients, which extend from the St. Petersburg-Leningrad region and N.-E. Estonia to S.-E. Finland. The Ca and Mg deposition alleviate the acidifying effect of sulphur and nitrogen. The Scots pine canopies acted as a sink for ammonium and nitrate, while the canopy interactions increased sulphur, calcium and magnesium content in throughfall. Foliar S, N and Ca concentrations correlated positively with the corresponding deposition loads. In contrast, low foliar magnesium concentrations were detected in the vicinity of St. Petersburg. The results indicate that the sulphur and calcium deposition may have increased soil leachate S and Ca concentrations in the most polluted Scots pine stands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00477155
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  • 19
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    Air Pollution and Sick-leaves (2000)
    Springer
    Environmental and resource economics 16 (2000), S. 31-50 
    Details
    ISSN: 1573-1502
    Keywords: air pollution ; logit specification ; PM10 ; work loss days
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Notes: Abstract During the last decade an increasing amount of studies have investigatedthe relationship between air pollution and human health effects. In thisstudy we investigate how these effects in turn induce reduced labourproductivity in terms of sick-leaves, which is an important factor inassessment of air pollution costs in urban areas. For this purpose weemploy a logit model along with data on sick-leaves from a large office inOslo and different air pollutants. Our results indicate that sick-leaves aresignificantly associated with particulate matter (PM10), while theassociations with SO2 and NO2, are more ambiguous. We also tryto estimate the induced social costs in terms of lost labour productivity andincreased governmental expenditures, although these estimates are moreuncertain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1008318004154
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  • 20
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    Hedonic models and air pollution: Twenty-five years and counting (1993)
    Springer
    Environmental and resource economics 3 (1993), S. 381-394 
    Details
    ISSN: 1573-1502
    Keywords: Hedonic models ; air pollution ; meta analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Notes: Abstract This paper reports a meta analysis of how effectively hedonic property models have detected the influence of air pollution on housing prices. Probit estimates are reported describing how data, model specification, and local property market conditions in cities represented in thirty-seven studies influence the ability of hedonic models to uncover negative, statistically significant relationships between housing prices and air pollution measures.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00418818
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  • 21
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    The U.S. allowance trading system for sulfur dioxide: An update on market experience (1995)
    Springer
    Environmental and resource economics 5 (1995), S. 115-129 
    Details
    ISSN: 1573-1502
    Keywords: Emission trading ; United States ; sulfur dioxide ; air pollution ; costs ; cost-effectiveness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Notes: Abstract In 1990, the U.S. Congress passed legislation that amended the Clean Air Act to create a new program to mitigate the effects of acid deposition in the U.S. through emission reductions of sulfur dioxide (SO2) and nitrogen oxides (NOx) at electric utility plants across the country. The SO2 reductions, totalling a 40% reduction nationally from 1980 levels or a 10 million ton reduction annually, are achieved largely through an emission trading system, the largest program of its kind designed to date. This trading system has the potential to save up to half of the compliance costs associated with more traditional source-by-source emission limit programs. This paper briefly discusses background on the acid rain issue in the United States, and the principal features of the program, including: a permanent cap on utility emissions of SO2 beginning in 2010, decision to grant up-front allocation of emission credits to reduce individual approvals of trades, the use of continuous emission monitors and automatic penalties to ensure compliance, and integration of the Acid Rain program requirements with other Clean Air Act programs. The paper also discusses the development of the allowance trading market to date, including the types of compliance options chosen and quantity and type of emissions trading being conducted.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00693019
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  • 22
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    Emission trading in Europe with an exchange rate (1994)
    Springer
    Environmental and resource economics 4 (1994), S. 305-330 
    Details
    ISSN: 1573-1502
    Keywords: Emission trading ; air pollution ; economic instruments ; costs ; europe ; sulfur
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Notes: Abstract This paper explores the analytical and empirical properties of a new method for emission trading according to a fixed exchange rate. The exchange rate is based on the ratios of the marginal costs of abatement in the optimal solution in order to account for the impact of the location of emission sources on the deposition. It is shown that, generally, this system will not achieve the optimal solution and does not guarantee that environmental deposition constraints are not violated, although total abatement costs are always reduced. A routine was developed to mimic trading as a bilateral, sequential process, subject to an exchange rate. In the example used, results for SO2 emissions in Europe show that, starting from a uniform reduction, exchange-rate trading achieves higher cost savings than one-to-one trading, without achieving the cost minimum. Sulfur deposition targets are not violated since the initial emission allocation overfulfilled targets at many places. The results are sensitive to: pre-trade emission levels, the transaction costs, the availability of information on potential cost savings and assumptions made on the behavior of trading partners.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00692228
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  • 23
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    Ordering effects in contingent valuation surveys (1996)
    Springer
    Environmental and resource economics 8 (1996), S. 485-499 
    Details
    ISSN: 1573-1502
    Keywords: contingent valuation ; ordering effects ; air pollution ; health damage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Notes: Abstract This paper focuses on ordering effects in CVM surveys; how the expressed value of a particular good valued in a sequence of several goods depends on where in the sequence the good is valued. We use data from a Norwegian CVM survey focusing on WTP for a 50% reduction in air pollution from car traffic to test for the existence of ordering effects and to apply a test for internal consistency. We found considerable and significant ordering effects in our data, but were not able to reject the hypothesis of internal consistency. Based on our survey, we argue that ordering effects may be a result of rational choice. These effects are problematic if a sequential valuation procedure is applied to a simultaneous problem, and/or the respondents are given imperfect information about the decision problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00357416
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  • 24
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    Soil sensitivity due to acid and heavy metal deposition in East Central Europe (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 737-742 
    Details
    ISSN: 1573-2932
    Keywords: acid deposition ; heavy metals ; cadmium ; soil contamination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Simultaneous soil acidification and deposition of heavy metals is a major concern for forest and agricultural soils of the Black Triangle region of East Central Europe including southern former East Germany, northern Bohemia of the Czech Republic, and southern Poland. The objective of this project was to develop historical and future projections of acid and heavy metal deposition to soils (As, Cd, Pb, Zn) and to produce a preliminary map of soil sensitivity to cadmium pollution and uptake by crops. Ultimately, we wish to assess the relative hazard and recovery times of soils to metals deposition in the region. Emission and deposition data bases obtained from several models developed at IIASA were linked using the Geographical Information System ARC/INFO to produce soil maps of sensitivity to cadmium mobility based on metals deposition, soil type, soil texture, organic matter content, and acid deposition. RAINS 6.1 (Alcamo et al., 1990) was utilized to produce maps of acid deposition for EMEP grids (150 km x 150 km). The largest amount of acid load is deposited in southern East Germany. Sulfur deposition in that area was 10–12 gS/m2/yr in 1990, and S+N deposition exceeded 8000 eq/ha/yr. But the “hot spot” for metals deposition is further to the east, in the Silesia area of southern Poland. The TRACE2 trajectory model of Alcamo, Bartnicki, and Olendrzynski (1992) was used to estimate cumulative metals deposition since 1955 with scenarios to 2010. Pb has improved over Europe since 1970 when depositions in the Ruhr River Valley of West Germany exceeded 60 mg/m2/yr. But cadmium deposition in southern Poland (Katowice and Krakow) has now accumulated to 60–70 mg/m2 by atmospheric deposition alone. During base case simulations from 1955–87, approximately 1.8 mg/kg Pb and 0.12 mg/kg Cd have been added to the mixed plow-layer of ∼30 cm. If these emissions continue indefinitely, the accumulation of metals will become problematic for agriculture and the food chain.
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    URL: http://dx.doi.org/10.1007/BF00476917
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    Effects of ambient air pollution on wheat and rice yield in Pakistan (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 1311-1316 
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    ISSN: 1573-2932
    Keywords: Pakistan ; air pollution ; ozone ; nitrogen dioxide ; rice ; wheat ; filtration ; yield
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Open-top chambers ventilated with ambient or chiarcoal-filtered air were used to assess the impact of air pollution on the yield of local cultivars of wheat and rice, at a site on the outskirts of Lahore. At this location, 6-h mean O3 concentrations reach 60 ppb in certain months, and annual mean NO2 concentrations are 20–25 ppb. The experiments showed significant yield reduction in two successive seasons which ranged from 33% to 46% in wheat and from 37% to 51% in rice. The major yield parameter affected was the number of ears or panicles per plant, although there was also evidence of small effects on 1000 grain weight and on the number of grains per ear/panicle. These results have significance in terms of the maintenance of agricultural yields as pollution emissions rise in south and south-east Asia.
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    URL: http://dx.doi.org/10.1007/BF00477163
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    Assessment of the use of principal components analysis to relate air and precipitation chemistry to climate (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 1569-1574 
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    ISSN: 1573-2932
    Keywords: synoptic circulation ; principal components analysis ; air pollution ; climate change ; classification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A classification of atmospheric circulation was derived using principal components analysis (PCA) of daily sea level pressure over a 10 year period. Correlation coefficients of up to 0.65 were obtained between the individual principal component loadings and monthly means of gas and precipitation ion concentrations for a Scottish and a Norwegian station from the European Monitoring and Evaluation Programme (EMEP) network. The mean synoptic patterns of months predicted to have high or low gas and ion concentrations from their component loadings agreed well with previous work. High concentrations occur frequently with southerly flow or anticyclonic conditions, and low concentrations with westerly and northwesterly flow. We conclude that the PCA classification is a sensible method to use to derive circulation pattern-pollutant relationships, and is an encouraging first step to use the general circulation model (GCM) projections of future climate to assess possible future air/precipitation composition patterns
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    URL: http://dx.doi.org/10.1007/BF00477204
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    Ecological studies in the ratanica catchment (Carpathian foothills, S Poland) — An overview (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 1635-1640 
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    ISSN: 1573-2932
    Keywords: forested catchment ; air pollution ; nutrients ; pollutants ; balance ; plant bioindicators ; forest damage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract This paper includes an overview of ecological studies conducted since 1986 in the Ratanica pine-beech forested catchment located in the polluted, high populated southern part of Poland. General characteristics of the catchment (including soil and vegetation, air pollution, input/output of nutrients and pollutants, element budget data and forest health assessment) are presented. Based on biogeochemical and bioindication results, the Ratanica catchment has been classified as a moderately to heavily deteriorated area. Predictions for this forested catchment for various deposition of anthropogenic pollutants, are also disscused.
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    URL: http://dx.doi.org/10.1007/BF00477214
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    Forest health monitoring in Canada: How healthy is the boreal forest? (1995)
    Springer
    Water, air & soil pollution 82 (1995), S. 77-85 
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    ISSN: 1573-2932
    Keywords: boreal forests ; forest health ; air pollution ; detection
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The Canadian boreal forest covers 299.2 Mha which is two-thirds of Canada's forest and runs in a continuous belt from Newfoundland north and west to the Yukon. The major species are spruce, pines, balsam fir, white birch and trembling aspen often occurring in extensive monocultures. Wildfire is the driving successional force in the boreal forest and has remained so despite fire suppression activities and extensive harvesting. Insects and diseases also cause extensive damage. In order to ensure the sustainability of forests, it is necessary for the forest manager to know the condition of the health of these forests. The CFS established in 1984 the Acid Rain National Early Warning System in order to monitor the health of the forests. National results show that mortality is generally in the normal range of 1–3% and is caused by known stresses; insects, diseases and abiotic damage. No signs of pollution damage have been yet been detected in boreal forests by the system. An early warning system to detect and monitor conditions remains an essential part of our commitment to the sustainability of Canada's forests.
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    Estimate of health impacts of acidifying air pollutants and tropospheric ozone in Europe (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 167-176 
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    ISSN: 1573-2932
    Keywords: air pollution ; health effects ; risk assessment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Based on combined information available from air quality monitoring data and long-range transport models, European population exposure to SO2, NO2 and O3 has been estimated. This information has been combined with the results of epidemiological studies assessing strength of association between the exposure and health effects to estimate an impact of the pollution on health in Europe. The analysis indicates that a considerable number of health problems, ranging from mild irritation of the respiratory system to increased mortality, can be attributed to short-term peaks of pollution observed in Europe. Chronic impacts of prolonged elevated SO2 levels on lung function are estimated to occur in close to10 million people in Europe.
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    Health effects of acid aerosols (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 177-188 
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    ISSN: 1573-2932
    Keywords: health ; air pollution ; acidity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Earlier in this century, a number of severe episodes clearly demonstrated that air pollution can affect human health; these included documented increases in mortality and morbidity. Although health was clearly affected during these episodes and acidity is a candidate for the responsible agent, it has been difficult to ascertain which agents were involved. In the past several years extensive research was launched to learn the significance of acidic aerosols on human health. The question of a health threat from acid aerosols was first raised by epidemiology studies, but results of the body of epidemiological evidence collected to date have been mixed. Even when a study finds evidence of a response to exposures involving high ambient acidity levels, it is usually difficult to know which agent or agents are responsible for causing the effects noted. High levels of acidic aerosols are nearly always accompanied by high levels of other air pollutants which may have known or suspected effects on the respiratory tract. For this reason, an understanding of the potential mechanisms of acid aerosol health effects needs supporting evidence from the laboratory, where exposures to various agents can be controlled. To date, this supporting evidence includes demonstration of physiological responses at acidity levels greater than those that exist in the ambient environment. A limited number of studies have considered responses at levels more characteristic of ambient exposures; these studies demonstrate little physiological response, probably due to the airways' ability to buffer acidity at low concentration. Although there is some evidence of impaired mucociliary clearance and modest changes in lung function, there is no evidence of airway inflammation or altered non-specific bronchial responsiveness as a result of acid aerosol exposure. The possibility that acid aerosols may potentiate responses to other pollutants remains a subject of interest. The potential existence of a group of individuals who are exquisitely sensitive to low acid concentrations requires further investigation. Recent epidemiology results are broadening the perspective from a focus on acidity per se to a focus on fine particulate matter, of which particulate acidity is but a subset. These studies find a consistent statistical association between various health responses, including mortality, and ambient measures of particulates, even at locations where levels of acidity are very low and at locations where current U.S. air quality standards are satisfied. There is at present no biological explanation for these associations.
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    Response of a white clover indicator system to tropospheric ozone at eight locations in the United States (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 1373-1378 
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    ISSN: 1573-2932
    Keywords: tropospheric ozone ; white clover ; air pollution ; biomonitor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A white clover (Trifolium repens L.) system using measured biomass to indicate effective concentrations of tropospheric ozone (O3) has been developed. The system utilizes the relative response of an O3-sensitive clone (NC-S) and an O3-resistant clone (NC-R) grown in 15-liter pots. Forage (leaves, stems and flowers) is cut, dried, and weighed at 28-day intervals. Forage dry weight ratios (NC-S/NC-R) for individual or multiple harvests indicate O3 concentrations during growth. In, 3 years of testing in open-top field chambers at Raleigh, North Carolina, O3 always decreased growth of NC-S more than that of NC-R and the NC-S/NC-R ratio routinely decreased as the O3 concentration increased. A national field test was performed in 1993 and 1994 to determine if the clover system can account for effects of climatic variables on clover growth per-se, and if climatic variables affect the relative response of the two clones to O3. Eight locations (Corvallis, Oregon; Kennedy Space Center, Florida; Delaware, Ohio; Amherst, Massachusetts; Blacksburg, Virginia; Raleigh, North Carolina; Riverside, California; San Bemardino mountains, California) provided large differences in O3 concentrations and climate. The NC-S/NC-R forage ratios for three consecutive 28-day growth periods for each year as related to the mean 12 hour per day O3 concentrations are presented in this manuscript. Ratios were generally highest where mean O3 concentrations were lowest (Oregon and Florida), lowest where mean O3 concentrations were highest (both California locations), and intermediate at other locations.
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    Chemical characteristics of leachate from pulp and paper mill residuals used to reclaim a sandy soil (1996)
    Springer
    Water, air & soil pollution 89 (1996), S. 167-187 
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    ISSN: 1573-2932
    Keywords: Pulp and paper mill sludge ; nitrogen ; DOC ; heavy metals ; water quality
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Primary sludge, secondary sludge, and wood ash from a pulp and paper mill were combined with sand to create a synthetic topsoil (C:N ratio of 18:1) to restore an abandoned gravel pit. Synthetic topsoil was applied to field microcosms at rates equivalent to 0, 2170, 4341, or 6511 kg N/ha; each was seeded with grass. Fifteen chemical constituents in leachate were measured during two field seasons. Cadmium, Ni and Zn were mobilized rapidly by soil disturbance. Chloride and SO4-S eluted rapidly from the sludge along with Na. Nitrate leached with Ca late in each field season when sludge N-mineralization and nitrification exceeded plant uptake and microbial immobilization. Ammonium elution was negligible. Dissolved organic carbon (DOC) was mobilized by decomposition of organic matter in the sludge, as were Mg and K. Copper eluted with DOC, probably as an organic ligand. Lead and ortho-P were below our detection limits. We concluded that a synthetic topsoil with a 30:1 C:N ratio applied at a rate of 2100-4300 kg N/ha should provide adequate plant nutrition while minimizing water quality hazards.
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    Feasibility of a counter-current extraction procedure for the removal of heavy metals from contaminated soils (1996)
    Springer
    Water, air & soil pollution 89 (1996), S. 317-335 
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    ISSN: 1573-2932
    Keywords: Soil remediation ; extraction ; heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Effective remediation and sanitation technologies for soils contaminated with heavy metals are limited. We investigated the feasibility of a counter-current metal extraction procedure for the removal of selected heavy metals (Cd, Cu, Ph, and Zn) from two contaminated soils. The process involved a decarbonation (removal of carbonates), acid solubilisation, washing, and liming step. Results from batch equilibration experiments simulating the counter-current process showed more than 85% of the Cd present to be removed. Removal efficiencies for Cu and Pb were limited to approximately 15%, this mainly due to resorption of these elements during the decarbonation step. As most Zn was found to be present in a more difficult acid-extractable solid phase, its extractability accounted for only 25%. While reaction (pH) conditions of both decarbonation and solubilisation determined removal efficiencies, washing the extracted soil with deionized water only slightly increased the amount of metals removed. Metal distribution among solid phases — exchangeable, carbonate, reducible, organically bound, and residual — was affected by the different treatments. The amount of metals contained in the exchangeable and residual fractions determined their extractability. Except for Cu, the reducible and organically bound fractions were less important. After solubilisation 13 to 70% of the metals were present in an exchangeable solid phase. This implicates that washing the solubilized soil with a salt may increase the extractability of metals, especially for Zn and Pb. Based on our results the process is critically evaluated and possibilities for optimization formulated.
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    Forms of Cu, Ni, and Zn in soils of sudbury, ontario and the metal concentrations in plants (1996)
    Springer
    Water, air & soil pollution 90 (1996), S. 531-542 
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    ISSN: 1573-2932
    Keywords: heavy metals ; smelting ; soil contamination ; plant contamination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Forms of Cu, Ni, and Zn in the contaminated soils of the Sudbury mining/smelting district were studied to assess metal mobility and plant availability. Soil, tufted grass (Deschampsia caespitosa (L.) Beauv.), tickle grass (Agrostis scabra Willd.), dwarf birch (Betula pumila L. var. glandulifera Regel) and white birch (Betula paprifera Marsh.) leaf and twig samples were taken from 20 locations around three Cu-Ni smelters. The sampling sites were collected to cover a wide range of soil pH and soil Cu and Ni concentrations. The water-soluble, exchangeable, sodium acetate-soluble, and total concentrations of the metals in the soils were analyzed. The soils were contaminated with Cu and Ni up to 2000 µg g−1. Zinc concentrations were also elevated in some samples above the normal soil level of 100 µg g−1. The mobility of Cu and Zn, expressed as the proportion of metals in Fl and F2 forms, increased with soil pH decrease. A strong positive correlation was found between the soil exchangeable (F2) Ni and the soil pH. Concentrations of Cu and Ni in birch twigs showed a good linear relationship with exchangeable forms of the metals in soils. A highly significant correlation was also found between total Ni in soils and the metal content of the twigs. No significant correlation was found between Zn concentrations in the soils and plants. Birch twigs are a good indicator (better than leaves) of Cu and Ni contamination of the Sudbury soils. The mobile forms of Cu and Ni and low pH seem to be the main factors that will control the success of revegetation. Strong variability of the soil metal mobility requires any reclamation effort be site-specific.
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    Solubility of heavy metals in a contaminated soil: Effects of redox potential and pH (1996)
    Springer
    Water, air & soil pollution 90 (1996), S. 543-556 
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    ISSN: 1573-2932
    Keywords: heavy metals ; solubility ; redox potential ; pH ; soil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract To assess the mobilities of Pb, Cd, and Zn from a contaminated soil, the effects of redox potential and pH value on metal solubilities were investigated. Both redox potential and pH were found to greatly affect heavy metal solubility in the soil. Results showed that the soil suspension under continuous oxygen aeration for 21 days resulted in increases of redox potential from 290 to 440 mV and pH value from 6.9 to 7.0, respectively. Soluble concentrations of Pb, Cd, and Zn varied with time, and were all lower than 1 mg kg−1. When the soil suspension was aerated with nitrogen, final redox potential was −140 mV and pH value of 7.1. The soluble metal concentrations were slightly higher than those aerated with oxygen. The equilibrium solubility experiments were conducted under three different pH values (3.3, 5.0, 8.0) and three redox potential (325, 0, −100 mV). Results showed that metals were sparingly soluble under alkaline conditions (pH = 8.0). Metal solubilities were higher when under slightly acidic conditions (pH = 5.0), and increased drastically when pH was kept at 3.3. When solubilities were compared under same pH values, it was observed that metal solubilities increased as redox potential decreased. Generally speaking, acidic and reducing conditions were most favorable for metal solubilization, and the effect of pH was more significant than that of redox potential. It was proposed that heavy metals were mostly adsorbed onto Fe-Mn oxyhydroxides. The pH-dependent metal adsorption reaction and the dissolution of Fe-Mn oxyhydroxides under reducing conditions was the mechanism controlling the release of heavy metals from soils.
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    Sulphur and heavy metal concentrations in Scots pine bark in northern Finland and the Kola peninsula (1997)
    Springer
    Water, air & soil pollution 93 (1997), S. 395-408 
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    ISSN: 1573-2932
    Keywords: air pollution ; pine bark ; sulphur ; pH ; conductivity ; heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Sulphur and heavy metal deposition in northern Finland (= in Lapland) and the Kola Peninsula were surveyed using Scots pine bark samples. Sulphur concentrations in bark close to the Kola smelters were on an average twice as high as on the Finnish side of the border. The Cu and Ni concentrations near the smelters were almost 100-fold the mean values in northern Finland. There was a marked decrease in the sulphur and heavy metal concentrations with increasing distance from the emission sources. The effects of emission from the Kola Peninsula were evident in Finland only close to the border, especially in the eastern parts of Inari (NE corner of Lapland) where the Cu and Ni concentrations were 2- to 6-fold those in western Lapland. The sulphur and heavy metal concentrations in most of northern Finland were low. However were the concentrations of Cr in bark in the SW corner of Lapland considerably high, due to the emissions from the Tornio refined steel plants.
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    The influence of heavy metals on carbon dioxide evolution from a typic xerochrept soil (1997)
    Springer
    Water, air & soil pollution 93 (1997), S. 409-417 
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    ISSN: 1573-2932
    Keywords: CO2 evolution ; heavy metals ; loading effect ; metal equivalent
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In a laboratory study the effects on soil respiration of trace metals (Ni, Cd, Cu, Mn, Pb, Zn) added at loading rates ranging from 0 to 1000μg g−1 were determined. Differences in toxicity with respect to the type of metal salt added were also evaluated. The inhibitory effect on soil respiration differed considerably among the heavy metals and increased with the increasing loading rate. No linear relationships were found between the degree of inhibition and the levels of total and available metals. Toxicity evaluation at 20 and 50% inhibition of soil respiration showed Cu as the most toxic and Mn as the most tolerable metal. A ‘metal equivalent’ was calculated as the sum of the amounts of the available metals weighted to their relative toxicity with respect to the least toxic one: Mn equivalent=Mn+1.9Pb+2.1Ni+2.5Zn+6.7Cd+6.7Cu. The ionic potential of the heavy metals was found to be positively related to the percent inhibition of soil respiration. Chlorides and sulphates appeared to depress soil respiration more than nitrates, the latter counter-balancing the toxic effect of the heavy metals.
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    HEAVY METAL CONTAMINATED SOILS IN AN OLD INDUSTRIAL AREA OF WALES, GREAT BRITAIN: SOURCE IDENTIFICATION THROUGH STATISTICAL DATA INTERPRETATION (1997)
    Springer
    Water, air & soil pollution 94 (1997), S. 85-98 
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    ISSN: 1573-2932
    Keywords: soil ; pollution ; heavy metals ; smelters ; factoranalysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A combined statistical and computergraphic approach is proposed for apportionment and attribution of soil contaminants in complex areas. The field test site lies north of Swansea, south Wales and contains two major pollutant sources, an active nickel refiner and (4 km away) the site of major base metal smelting in the nineteenth century (the Lower Swansea Valley reclamation study area). Soil samples (70 samples, 0–15 cm) were collected on a regular grid of 1000 m interval. They were extracted using 0.05 M diammonium EDTA and the extracts analysed for Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn. Soil pH and %organic content were also determined. Factor analysis yielded three groups which explained 73.8% of the data variance (1: Cd, Cu, %OM, Pb, Zn, Ni; 2: Cd, Zn, Mn, pH; 3: Cu, Mn, Co, Ni, Fe). Isoline plots were classifiable into the same three groups. It was concluded that factor 3 contained those elements associated with smelter emissions, factor 1 with contamination from the Lower Swansea Valley and in factor 2 pedogenetic processes control the occurrence of the elements.
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    Pollutant exchange at the water/sediment interface in the venice canals (1997)
    Springer
    Water, air & soil pollution 99 (1997), S. 255-263 
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    ISSN: 1573-2932
    Keywords: heavy metals ; sediments ; pollution ; resuspension ; release processes ; bioavailability ; anthropogenic ; metal ; residual inetal ; geochemical phases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The space-time distribution of some pollutants (Cu, Ph, Zn, Cd, Fe, Mn, V, Ni, Cr) in the sludge of the canals of Venice was studied. The contamination levels were comparable to, or higher, than those measured in the most polluted sediments of the Lagoon of Venice Sediments were collected by two different sampling techniques I ) collection of sediment cores (upper 5 cm) by a syringe-type corer, 2) collection by traps, placed on the bottom of the canal Traps pennitted the sampling of sediments essentially resuspended by overlying water turbulence This sediment fraction is subjected to variations of its physicochemical parameters (principally change of redox conditions) and therefore to pollutant exchange at the water/sediment interface The metals principally exchanged during sediment resuspension were Cd, Pb, Zn and Cu These metals have principally an anthropogenic origin and are bound to the most labile geochemical phases of the sediment (such as sulphides), which can be oxidised during sediment resuspension, releasing metals into the water Fe, Cr and Ni were only partially exchanged, while Mn and V were generally not exchanged, a significant fraction of these metals is of natural origin and is bound to the most refractory phases of the sediment.
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    LONG-TERM TRANSFORMATIONS AND REDISTRIBUTION OF POTENTIALLY TOXIC HEAVY METALS IN ARID-ZONE SOILS INCUBATED: I. UNDER SATURATED CONDITIONS (1997)
    Springer
    Water, air & soil pollution 95 (1997), S. 399-423 
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    ISSN: 1573-2932
    Keywords: fractionation ; redistribution ; saturation ; kinetics ; heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Solid-phase transformations of Cd, Cu, Cr, Ni and Zn, added as soluble salts at several levels to two arid-zone soils, were studied over a period of one year. The soils were maintained under a saturated-paste regime and sampled periodically. A selective sequential dissolution procedure was employed to determine the changes in metal distribution among six operationally defined solid-phase fractions. A function, Uts was introduced to measure the fractional attainment of equilibrium of the soils following a perturbation. The direction and rate of redistribution of the added metals in the soils were affected by the nature of the metal, the soil properties and the metal loading level. Cd added to the soils was transferred from the exchangeable (EXC) into the carbonate (CARB) fraction. When soluble Cu, Cr, Ni and Zn were added at low loading levels, metals were transferred from the reducible oxides(RO) bound and easily reducible oxides (ERO) bound fractions and the EXC fraction, into the CARB fraction. However, at the higher loading level, metals were transferred from the EXC and CARB fractions into the organic matter bound (OM), ERO and RO fractions. The Uts function approached lower values as incubation continued but remained removed from 1. The overall flux of metals among fractions was the combined result of the readjustment of the metals in the native soil to changing conditions due to saturation, and the transfer of added soluble metals to the less labile fractions.
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    Effect of copper smelting air pollution on the mites (ACARI) associated with young scots pine forests polluted by a copper smelting works at Głogów, Poland. II. Soil mites (1997)
    Springer
    Water, air & soil pollution 97 (1997), S. 287-302 
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    ISSN: 1573-2932
    Keywords: Acari ; bioindicators ; Gamasida ; heavy metals ; Oribatida ; Scots pine forest
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The soil mites were investigated in the areas covered with dead needles in young Scots pine forests (plant associationLeucobryo-Pinetum), polluted by a copper smelting works at Głogów, and in a control plot. The concentration of heavy metals, mainly copper and lead, was the lowest in the control plot, and increased towards the pollution source. A high concentration of these metals reduced the density of mites and species number of Oribatida and Gamasida, while small concentrations were associated with the increasing abundance of mites and species number of Oribatida. Among mites, the following categories were distinguished: a) sensitive to heavy metals, b) sensitive to a high concentration, but tolerant of small concentrations, and c) tolerant of these metals. The changed vertical distribution of mites in the most polluted soil was also observed, due to accumulation of heavy metals in the Of/h horizon.
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    URL: http://dx.doi.org/10.1007/BF02407467
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    Accumulation of inorganic and organic pollutants by biofilms in the aquatic environment (1997)
    Springer
    Water, air & soil pollution 99 (1997), S. 651-659 
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    ISSN: 1573-2932
    Keywords: River sediments ; biofilms ; organic micropollutants ; heavy metals ; temporal variations ; biosorption ; accumulation processes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In a partly urbanized catchment to the south of Trier, Germany, short term variations in river sediment compounds as well as the bioaccumulation of pollutants on surface associated microbial coatings (biofilms) were investigated weekly during a period of six months. Concentrations of selected heavy metals (Cu, Zn, Pb), polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB) and for microbial characterisation protein, carbohydrate and uronic acid were analyzed. Sorption processes on biofilms were determined by temporal variations in pollutants and microbial parameters and through the comparison of sorbed substances in biofilms and sediments. The results show, that sorption events on biofilms play an important and dynamic role in spring and summer for transport and accumulation of the investigated pollutants in the aquatic environment. The amount of pollutants sorbed on sediment particles is not only dependent on the particulate bound or solved pollutants in the river water, but is strongly controlled by the changing conditions of the biofilms.
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    URL: http://dx.doi.org/10.1007/BF02406904
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    Integration of Remote Sensed and In-situ Data in an Analysis of the Air Pollution Effects on Terrestrial Ecosystems in the Border Areas between Norway and Russia (1998)
    Springer
    Environmental monitoring and assessment 49 (1998), S. 51-85 
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    ISSN: 1573-2959
    Keywords: air pollution ; GIS ; lichens ; remote sensing ; SO2 ; terrestrial ecosystems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Transboundary air pollution from industries in Nikel and Zapolyarnij has caused severe damage to the environment in Southern-Varanger in Norway and in Pechenga municipality in Russia. The work presented in this paper focuses on the integration of in-situ air pollution data with remote sensing based land cover maps. Land cover maps have been utilised to detect changes in the major land cover types within the area. The major change in the environment was the decrease of the sensitive lichen-dominated land cover types, and the increase of bilberry-dominated land cover types and finally the increase of the land cover types with the greatest air pollution stress (industrial barren, barren, and partly damaged vegetation, defoliated forests, lichen removal). A GIS based method for assessing the relationship of the remotely sensed land cover maps with the environmental condition parameters was developed and applied. By comparing the results from this analysis we observed that the land cover types with the greatest stress had the largest concentrations of SO2 in the ground air layer, while the land cover types with minor damage (the remaining lichen-dominated vegetation) had rather low concentrations of sulphur dioxide in the ground air layer. The area of the land cover types with the greatest stress (industrial barren, barren and partly damaged vegetation) has increased in the period 1973–1988, and the degradation is carried out in a such manner that sensitive mountain and lichen vegetation formations have been transformed into a more barren-like environment. The increase in the emissions has also transferred the natural barrens which also consisted of some sparse vegetation into a complete barren with little vegetation left. Also the epilitic lichens and mosses on bare rocks and stones were also removed by the high concentrations of SO2. The land cover types with minor damage (with the remaining lichen-dominated vegetation) had rather low concentrations of the contaminants (SO2, Ni and S), while the partly damaged and damaged land cover types had the highest concentrations of the contaminants. An exception was the Ni and S concentrations found in class 11 Industrial barrens which were lower than expected. Associations between the degradation and the SO2 concentration in the air were also documented. The conclusion from this analysis is that the in-situ data support the observations of damaged vegetation and industrial barrens imaged by the Landsat satellites, especially in the surroundings of Nikel and Zapolyarnij.
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    URL: http://dx.doi.org/10.1023/A:1005755706302
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    The Influence of Age on Cadmium Concentrations in Seabirds (1998)
    Springer
    Environmental monitoring and assessment 50 (1998), S. 159-171 
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    ISSN: 1573-2959
    Keywords: age ; biomonitoring ; heavy metals ; seabirds
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The effects of age on cadmium concentrations was investigated in Cory's shearwater, Calonectris diomedea, Lesser black-backed gull, Larus fuscus, and great skuas, Catharacta skua. There was no evidence for the continued accumulation of cadmium with increasing adult age. Adult shearwaters did have higher concentrations of cadmium compared to young fledglings, but there was no significant difference between cadmium concentrations in adult and sub-adult gulls. In addition, the sample of great skuas were of known age (3–22 yrs old) and showed no evidence of increasing cadmium concentrations with adult age in liver or kidney. However, it is possible that age accumulation of cadmium in great skuas was masked by individual dietary preferences overriding the effects of increasing age. It is often assumed that cadmium concentrations continue to accumulate with increasing adult age, but seabirds may have evolved some as yet unknown mechanism for excretion or more rapid turnover of cadmium than previously thought. The implications of this for the use of seabirds as biomonitors is discussed.
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    URL: http://dx.doi.org/10.1023/A:1005764008119
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    Implications of Atmospheric Change for Biodiversity of Aquatic Ecosystems in Canada (1998)
    Springer
    Environmental monitoring and assessment 49 (1998), S. 271-280 
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    ISSN: 1573-2959
    Keywords: air pollution ; atmospheric change ; atmospheric stressors ; biodiversity ; ecosystem risk
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Overall, the greatest threats to Canadian and global biodiversity are associated with conversions of natural ecosystems to anthropogenic ones, and over-exploitation of biological resources. This circumstance does not, however, trivialize the importance of atmospheric influences. Although scientific understanding of the risks is incomplete, it is nevertheless clear that anthropogenic changes in atmospheric stressors are potentially damaging to biodiversity and other ecological values over medium- and longer-term scales. It is important that greater investments be made in support of longer-term monitoring and research designed to understand the effects of atmospheric and other environmental stressors on the biodiversity and structure and function of Canadian ecosystems.
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    URL: http://dx.doi.org/10.1023/A:1005851027038
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    Studies on the Uptake of Heavy Metals by Various Plant Species on Chromite Minespoils in Sub-tropical Regions of India (1999)
    Springer
    Environmental monitoring and assessment 55 (1999), S. 389-399 
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    ISSN: 1573-2959
    Keywords: accumulation ; heavy metals ; mine spoils ; vegetation ; soil-plant relationships
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The presence of heavy metals (Cr, Ni and Fe) in soil and accumulated by herbs, shrubs and trees regenerated naturally on the minewaste-dumps of Sukinda chromite mines (TISCO sector) were investigated. There was significant correlationship between Cr and Fe in the soil where a tree species (Catunaregam spinosa) occurred. Guazuma ulmifolia and Diospyros montana also did show significant correlation between leaf, stem and soil for Cr, Ni and Fe. Among the shrubs (Calotropis gigantea, Chromolaena odorata, Phyllanthus reticulatus and Woodfordia fruticosa) significant and positive correlations were obtained for Cr and Ni in soil and iron and nickel in leaf and chromium and nickel in stem. Among the annual herbs, whole plant of tephrosia purpurea and Borrevia articularis showed significant and positive correlation with chromium and nickel with the maximum correlation coefficient value. It was concluded that the above information would be useful in revegetation programmes in subtropical regions having seasonal rainfall.
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    URL: http://dx.doi.org/10.1023/A:1005982915175
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    Metals in Feathers of Bonin Petrel, Christmas Shearwater, Wedge-Tailed Shearwater, and Red-Tailed Tropicbird in the Hawaian Islands, Northern Pacific (1999)
    Springer
    Environmental monitoring and assessment 59 (1999), S. 343-358 
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    ISSN: 1573-2959
    Keywords: birds ; environmental pollutants ; heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Levels of environmental pollutants are usually higher in mainland and coastal areas than in offshore or oceanic islands due to higher inputs from agricultural and industrial sources. Levels of heavy metals are usually higher in adult than in young birds, because they have had longer to accumulate metals in their tissues, and/or because they may eat larger, more contaminated, prey. We examined the levels of arsenic, cadmium, chromium, lead, manganese, mercury, and selenium in the adults and young of Bonin petrel (Pterodroma hypoleuca), Christmas shearwater (Puffinus nativitatis) and red-tailed tropicbird (Phaethon rubricauda) on Midway Atoll, and adult wedge-tailed shearwater (Puffinus pacificus) on Midway Atoll and on Manana Island (off Oahu) in the northern Pacific. All birds were analyzed individually except for Christmas Shearwater chicks where samples were pooled to obtain sufficient quantities for analysis. Significant (p〈0.05) age-related differences were found for mercury, selenium, manganese and chromium in Bonin petrels, for selenium and mercury in Christmas shearwaters, and for chromium and mercury in Red-tailed Tropicbirds. Lead approached significance for all three species. Adults had higher levels than young except for chromium and manganese in the petrels and arsenic in all three species. There were significant interspecific differences in concentrations of all metals except arsenic for the adults nesting on Midway. Christmas shearwaters had the highest levels of all metals except mercury and chromium. Bonin petrels, the smallest species examined, had mercury levels that were over three times higher than any of the adults of the other three species. For wedge-tailed shearwaters, levels of chromium and lead were significantly higher, and manganese and selenium were lower on Midway than Manana. Knowledge of the foraging ranges and habits of these far-ranging seabirds is inadequately known, but does not currently explain the observed differences among species. We could not find a consistent pattern of differences between the burrow nesting species (Bonin petrel, Wedge-tailed shearwater) and the surface nesting tropicbirds. There was no consistent pairwise correlation between any metals across all species.
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    URL: http://dx.doi.org/10.1023/A:1006134125236
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    Heavy Metal Tolerance in Chromogenic and Non-Chromogenic Marine Bacteria from Arabian Gulf (1999)
    Springer
    Environmental monitoring and assessment 59 (1999), S. 321-330 
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    ISSN: 1573-2959
    Keywords: agar diffusion assay ; Arabian Gulf ; chromogenic bacteria ; heavy metals ; toxicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A simple method – direct agar diffusion assay – was optimised for rapid assessment of heavy metal toxicity to marine chromogenic and non-chromogenic bacteria. The procedure involved spotting of a 10 microliter test solution on the seeded agar plate and incubation of the plates at 30°C to accelerate bacterial growth. Under optimum conditions, test results were obtainable within 12–18 hr instead of 96 hr incubation time generally required for a marine bacterial assay by conventional agar plate methods. A range of sixteen heavy metals, each at 5 different concentrations was tested. Toxicity was demonstrated by the formation of a clear zone of growth inhibition around the point of application. Toxicity of tested chemicals could be easily demonstrated at concentrations as low as 0.1 μg per spot on the agar plate. A dose dependent relation between metal concentration (μg/spot) and the diameter of the clear zone on agar plate was observed, suggesting potential of this method as an easy and economical tool in quantitative toxicology studies.
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    URL: http://dx.doi.org/10.1023/A:1006173722510
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    Multivariate imputation in cross-sectional analysis of health effects associated with air pollution (1995)
    Springer
    Environmental and ecological statistics 2 (1995), S. 191-212 
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    ISSN: 1573-3009
    Keywords: multivariate interpolation ; kriging ; respiratory morbidity ; air pollution ; sulphates ; nitrates ; ozone ; Ontario Health Study ; environmental monitoring
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract We demonstrate a recently developed spatial interpolation methodology in a study of the chronic effects of air pollution on respiratory morbidity. Our study uses data from the Ontario Health Study, a large survey of households in Ontario conducted for the province by Statistics Canada. The interpolation procedure imputes unobserved vectors of air pollution concentrations for individual Public Health Units, from those observed at a few fixed air pollution monitoring sites. We use logistic regression methods to assess the significance of air pollution levels based on the imputed values after modelling the relationship between binary health responses and assorted covariates such as measures of life style. Our findings prove negative; no significant relationship between chronic respiratory morbidity and air pollution is found. The imputation methodology is seen to be promising and might well be used in other such analyses.
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    URL: http://dx.doi.org/10.1007/BF00456664
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    Quantifying urban forest structure, function, and value: the Chicago Urban Forest Climate Project (1997)
    Springer
    Urban ecosystems 1 (1997), S. 49-61 
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    ISSN: 1573-1642
    Keywords: urban forests ; urban ecology ; urban climate ; hydroclimate ; air pollution ; energy conservation ; carbon removal ; benefit-cost analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract This paper is a review of research in Chicago that linked analyses of vegetation structure with forest functions and values. During 1991, the regions trees removed an estimated 5575 metric tons of air pollutants, providing air cleansing worth 9.2 million. Each year they sequester an estimated 315 800 metric tons of carbon. Increasing tree cover 10% or planting about three trees per building lot saves annual heating and cooling costs by an estimated 50 to 90 per dwelling unit because of increased shade, lower summertime air temperatures, and reduced neighborhood wind speeds once the trees mature. The net present value of the services trees provide is estimated as 402 per planted tree. The present value of long-term benefits is more than twice the present value of costs.
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    URL: http://dx.doi.org/10.1023/A:1014350822458
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    Litter decomposition and nitrogen mineralization in oak stands along an urban-rural land use gradient (1997)
    Springer
    Urban ecosystems 1 (1997), S. 117-131 
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    ISSN: 1573-1642
    Keywords: decomposition ; heavy metals ; litterbags ; nitrification ; nitrogen mineralization ; urbanization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Architecture, Civil Engineering, Surveying , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract We investigated litter mass loss and soil nitrogen (N)-transformation rates in oak stands along a 130-km, urban-rural transect originating in New York City to examine the relationship between changes in these parameters and previously documented differences in soil temperature, heavy metal and total salt concentrations, and soil biota. Reference litter from a rural site was placed in litterbags, and rates of mass loss and changes in N concentration in litter residues were measured over a 6-month period. Net N-mineralization and nitrification rates were measured in A horizon soils using laboratory incubations under constant moisture and temperature. Both mass loss (76%) and N release (65%) from litterbags reached their maximum in urban stands, whereas net N-mineralization rates were 2.3-fold higher than in rural A horizon soils. Litter fragmentation by earthworms and higher soil temperatures are potential causes of the higher mass loss rates observed in urban stands. The higher releases of N measured in the urban litterbags could be a result of their faster mass loss rates, exogenous inputs of N from atmospheric deposition, a relatively low heterotrophic demand for N, or a combination of these factors. The results of this study suggest that in comparison with rural stands, urban forests are characterized by comparatively high rates of litter decomposition, and may also be characterized by comparatively high rates of N mineralization. Additional studies are needed to test whether these effects are common to urban environments in general.
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    Air Pollution and ‘Dirty’ Industries: How and Why Does the Composition of Manufacturing Output Change with Economic Development? (2000)
    Springer
    Environmental and resource economics 17 (2000), S. 109-123 
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    ISSN: 1573-1502
    Keywords: economic development ; industrial composition ; pollution havens ; air pollution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Economics
    Notes: Abstract This paper examines the impact on air pollution ofchanges in the composition of manufacturing output indeveloped and developing countries. Pollutionemissions from manufacturing output are estimated ina manner which holds constant the effect of technologyand regulations allowing the impact of compositional changes alone on pollution to beestimated. The paper has three main findings; (1) theinverted-U estimated between per capita income and thepollution intensity of GDP arises due to both thecomposition of manufacturing becoming cleaner and theshare of manufacturing output in GDP falling.Compositional changes alone are not responsible forthe inverted-U between per capita income and percapita emissions; (2) changes to the composition ofmanufacturing output are consistent with the pollutionhaven hypothesis, however there is clear evidence thatrising per capita incomes are associated with afalling income elasticity of demand for `dirty'products. This fact may explain the compositionalchanges that occur with development; (3) in additionto the income elasticity effect, the analysis suggeststhat land prices and to a lesser extent the prices oflabour and capital, determine the proportion of dirtyindustry within a country's manufacturing sector.
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    URL: http://dx.doi.org/10.1023/A:1008388221831
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    Climate change, urban air problems and transport policy in the European Union (2000)
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    Integrated assessment 1 (2000), S. 145-156 
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    ISSN: 1573-1545
    Keywords: transport ; air pollution ; greenhouse gasses ; externalities ; fuel efficiency of cars ; cost-effectiveness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract This paper surveys some recent studies on conventional air pollution and climate change in the transport sector in Europe. Fuel efficiency standards, car emission standards and transport pricing instruments are analysed from an economic perspective taking into account environmental and economic efficiency objectives.
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    URL: http://dx.doi.org/10.1023/A:1019127731254
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    The reconstruction of environmental rights in urban South Africa (1995)
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    Human ecology 23 (1995), S. 259-284 
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    ISSN: 1572-9915
    Keywords: South Africa ; urbanization ; hazards ; flood ; air pollution ; health ; human rights
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Energy, Environment Protection, Nuclear Power Engineering , Ethnic Sciences
    Notes: Abstract Rapid and spatially concentrated urbanization in South Africa has brought with it significant health and safety hazards. These hazards are described and analyzed through two optics: environmental rights and community participation. The rights perspective suggests that the system of apartheid led to a collapse of rural livelihoods, driving people to the cities, while apartheid's tight control over African residential location and employment ensured that high density settlement and unemployment would follow. The resulting urban environmental degradation and health and safety hazards are a violation of the human rights of the African residents of townships and informal settlements. The community participation perspective suggests that reconstruction can be linked to development and that community-based hazard identification and mitigation can be a vehicle for kick-starting urban revitalization.
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    URL: http://dx.doi.org/10.1007/BF01191652
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    Transpiration and hydraulic conductivity in three Scots pine (Pinus sylvestris L.) stands with different air pollution histories (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 1677-1682 
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    ISSN: 1573-2932
    Keywords: stand transpiration ; hydraulic architecture ; Pinus sylvestris L. ; air pollution
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract As part of a project studying the effects of massive reductions in the output of air pollutants in eastern Germany we monitored stand transpiration rates and water stress and analyzed the hydraulic architecture of Scots pine in three stands with different air pollution histories. Sap flow densities were continuously measured in 15 trees per stand with a thermoelectric method. The sap flow densities were scaled up to the stand transpiration rate via the conductive xylem area, which was measured with computer-tomography in the same trees. Radiation (PAR), humidity and temperature were monitored at three levels in the stands, water stress is assessed by predawn water potentials. As a parameter of hydraulic architecture we studied leaf specific conductivity (LSC). The proportion of the heartwood area did not significantly vary along the gradient of air pollution. The variation of sap flow densities within the stands was large. The ratios of sap flow densities in the inner and outer xylem were site-specific and significantly different between the stands. In the stand with the highest rate of air pollution there was a sharp decline in the sap flow densities towards the heartwood. Stand transpiration in the site with the lowest pollution was significantly higher than in the two more polluted sites. LSC in 2 years old twigs was significantly higher in the low pollution stand. In the dry summer of 1994 predawn water potentials fell to extreme values of below 1.6 MPa. At that stage transpiration ceased until the next substantial rainfalls.
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    The effects of the emissions of the Kostomuksha mining complex on the chemical composition of deposition and soil water in the surrounding pine forests (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 1689-1694 
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    ISSN: 1573-2932
    Keywords: air pollution ; deposition ; emission ; mine industry ; precipitation ; soil water ; sulphur dioxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The Kostomuksha mining complex in Russian Karelia is a major emission point source surrounded by large forest areas near the Finnish border. The sulphur dioxide emissions of the complex are almost 60 000 tonnes and dust emissions about 5 000 tonnes a year. Research into the effects of emissions on the surrounding forests were started in a Finnish-Russian co-operation project in 1992. Deposition measurements during the two first years indicate that the effects of the emissions extend about 30 km to the west of the complex. The annual sulphur deposition near the mining complex has been about 300 mg/m2 in bulk precipitation and about 500 mg/m2 in throughfall. Sulphur emissions sometimes extend the eastern parts of Finland, but there the deposition is clearly smaller than near to the mining complex. The high calcium emissions neutralize the acidifying effect of sulphur near to the mine and smelter. The iron concentration in precipitation also increased near the complex. Sulphur and calcium decreased in percolation water on moving westwards.
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    Copper in Scots pine forests around a heavy-metal smelter in south-western Finland (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 1727-1732 
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    ISSN: 1573-2932
    Keywords: copper ; element flux ; heavy metals ; Pinus ; soil pollution ; understorey vegetation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Distribution and fluxes of copper within Pinus sylvestris stands were studied during 1992–1994 along a heavy-metal pollution gradient in south-western Finland. The stands are situated at distances of 0.5, 4 and 8 km from a copper-nickel smelter that started operating in 1945 at Harjavalta. According to the results, copper concentrations in the soil, in the understorey vegetation and in the trees increased steeply towards the smelter. Almost 50 years' accumulation of heavy metals in the soil has caused direct toxic effects to soil microbes, thus decreasing decomposition and nutrient mineralisation. During the past few years, sulphur and heavy metal emissions from the copper and nickel smelter have been radically decreased. However, the heavy metals which have been accumulating in the soil for decades continue to affect the vegetation for a long time through soil processes. Consequently, long-term accumulation in the soil has to be taken into account when determining the critical loads of forest ecosystems for heavy metals.
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    A spatial decision support system to allow the investigation of the impact of emissions from major point sources under different operating policies (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 2649-2654 
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    ISSN: 1573-2932
    Keywords: Decision support system ; optimization ; air pollution ; sulphur ; critical load
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A Spatial Decision Support System (SDSS) is being developed for Her Majesty's Inspectorate of Pollution (HMIP). It enables the investigation of the spatial implications of different operating procedures from large point sources of pollution. The environmental effect of emissions is assessed using the critical loads methodology developed at ITE and modelled deposition “footprints”. This approach allows an “effect per unit emission” or “pollution potential” to be determined for each source. Individual sources are modelled and included within the SDSS if their current emissions are above a given threshold. The SDSS provides a graphical user interface (GUI) which facilitates a fast, efficient and effective means to specify and to examine the effect of different operating policies. Mapping, statistical and optimization facilities are provided to help describe the effect of any specified strategy. Maps may be produced as deposition rates or exceedance values. Statistics may be visualised as histograms and scatter plots. The optimization facility uses linear programming to minimise the total environmental impact (estimated from emissions and critical loads) or maximise power produced within environmental limits. The SDSS has been written in the Arc/Info Macro Language (AML) and provides an invisible interface with standard GIS facilities and programmes written in “C”.
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    Reactions of gases on calcareous stones under dry conditions in field and laboratory studies (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 2707-2712 
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    ISSN: 1573-2932
    Keywords: Stone deterioration ; dry deposition ; air pollution ; calcareous stones ; field test ; laboratory test
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Dry deposition of gases plays an important role for the deterioration of stone materials and a better understanding of the processes involved will improve our ability to maintain stone monuments and buildings. As a part of an EU-project an investigation with four calcareous stone types have been exposed outdoor at two test sites in Norway for two years. The exposure has been carried out in sheltered position and the amount of reaction products and the penetration depth of SO2 into the stones was determined as soluble sulphate after half a year and after one and two years. Even if most of the sulphate was found in the upper 0.3 mm of the stone, there was an increase in the sulphate content in stone even down to the center of the stone sample. In laboratory tests with SO2, NO2 and changing relative humidity the synergistic effect of NO2 and the importance of the relative humidity was investigated. The uptake rates were calculated from the laboratory studies by analyzing the gas concentrations before and after the exposure chamber. By calculating the deposition velocity from the field study by using the amount of sulphate found in the stones together with the average outdoor concentration of SO2 at the test sites, the values were a magnitude higher than in the laboratory test, highest at the industrial paper mill sites with high concentrations both of SO2 and some hypochlorite and lower in urban atmosphere with fairly low values of SO2 and high values of NO2.
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    URL: http://dx.doi.org/10.1007/BF01186243
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    Long-term modelling of airborne pollution within the Northern Hemisphere (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 2051-2056 
    Details
    ISSN: 1573-2932
    Keywords: acidification ; air pollution ; air pollution modelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A long-term modelling (1991–1994) of oxidised sulphur, bound nitrogen and some heavy metals has been carried out by MSC-E/EMEP for the Northern Hemisphere. The transport unit of the model is an Eulerian scheme which could be classified as Pseudo-Lagrangian one. Vertical distribution described by means of Gaussian approximation and the exchange with the free troposphere are taken into account. Vertical movement is calculated proceeding from local mixing conditions, state of the surface, its height (topography) etc. The chemical unit for acid compounds contains 25 reactions and 14 compounds including sulphur and nitrogen compounds peroxyacetylnitrate, tropospheric ozone, volatile hydrocarbons (but methane) are considered as a whole via ozone creation potential. The model time step is 1 hour, meteorological data (winds, temperature, precipitation etc.) cover 6-hour intervals. The model results show that very significant part of the Arctic and West Asian acid pollution is produced by European countries. On the whole the Arctic pollution by SOx, NOx and NHx comes from sources of Old World. The main source of sulphur pollution is located in Russia and of nitrogen compound — in Central and Northern Europe. About 50% SOx, 70% NOx and 40% NHx deposition in Central Asia and Kazakhstan is-imported from external sources. A similar situation is observed in European and Asian parts of Russia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01186136
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    Studies of precipitation contamination levels over the north-western forests of Russia subject to emissions from the two nickel smelters (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 2071-2076 
    Details
    ISSN: 1573-2932
    Keywords: air pollution ; industrial emissions ; sulphur dioxide ; heavy metal aerosols ; contamination of precipitation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The results of investigations carried out in the forests of Kola peninsula subject to long-term air pollution by the nickel industrial enterprises are presented. Samples of rainwater from the open sites, from under the coniferous (pine) trees crowns and of the stemflow were collected at various distances from the emission sources. The highest levels in pollution of rainwater are detected over the area adjacent to the smelters. Researches of contamination of the precipitation in the vicinity of the two nickel enterprises of Kola peninsula show that concentrations of pollutants vary significantly (up to an order of magnitude) depending upon the meteorological conditions. The area of impact on forests of Kola peninsula is restricted by the radius of 30–40 km from the emission sources.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01186139
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    HEAVY METALS IN ALLOTMENT GARDENS CLOSE TO AN OIL REFINERY IN PŁOCK (1997)
    Springer
    Water, air & soil pollution 96 (1997), S. 61-71 
    Details
    ISSN: 1573-2932
    Keywords: allotment gardens ; dustfall ; ground water ; heavy metals ; oil refinery ; soil ; vegetables
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In the period 1984–1990 the following vegetables were grown: red beet, carrot and parsley in four allotment gardens of Płock city (Central Poland), situated near the refinery and petrochemical works. Cadmium, lead, copper, chromium, zinc and manganese concentrations were determined in the leaves and roots of vegetables. The heavy metal accumulation in the soil, dustfall (measure of air pollution), and ground water was determined. The quality of the vegetable yield, notably of the leaves, was low. This was mainly due to the excessive chromium and cadmium content in the leaves. Accumulation of heavy metals was relatively low in the soil, rather high in the ground water and variable in the dust.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026402218990
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    ACCUMULATION OF CADMIUM AND ZINC FROM DIFFUSE IMMISSION ON ACID SANDY SOILS, AS A FUNCTION OF SOIL COMPOSITION (1997)
    Springer
    Water, air & soil pollution 96 (1997), S. 1-16 
    Details
    ISSN: 1573-2932
    Keywords: heavy metals ; pollution ; sandy soils ; zinc smelter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Sandy soils, in the border area of Belgium and the Netherlands (the Kempen region), are heavily contaminated by atmospheric deposition of cadmium and zinc from nearby smelters. Groundwater contamination by leaching from these low retention soils is subject of study. There are reports of high cadmium and zinc concentrations in groundwater in the area, but in most cases the direct sources are unknown. In an attempt to predict present or future risk of groundwater contamination by soil leaching, metal binding processes (retardation) were studied that are specific for these soil types under the existing acidifying conditions. From four fields nine contaminated profiles were sampled and analyzed for cadmium and zinc. Average concentrations of 131 μg g-1 zinc and 1.6 μg g-1 cadmium with maximum values of 2989 μg g-1 respectively 16.3 μg g-1 were found. In addition pH and contents of organic matter, aluminium, iron, and manganese were determined. The relative importance of these soil parameters for metal retardation is derived from the profiles. The data show that organic matter is the most important soil component for binding cadmium and zinc. Adsorption of cadmium and zinc on aluminium, iron and manganese (hydr) oxides appears to be of minor importance at low pH (〈5.5).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019297625144
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    Accumulation of cadmium and zinc from diffuse immission on acid sandy soils, as a function of soil composition (1997)
    Springer
    Water, air & soil pollution 96 (1997), S. 1-16 
    Details
    ISSN: 1573-2932
    Keywords: heavy metals ; pollution ; sandy soils ; zinc smelter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Sandy soils, in the border area of Belgium and the Netherlands (the Kempen region), are heavily contaminated by atmospheric deposition of cadmium and zinc from nearby smelters. Groundwater contamination by leaching from these low retention soils is subject of study. There are reports of high cadmium and zinc concentrations in groundwater in the area, but in most cases the direct sources are unknown. In an attempt to predict present or future risk of groundwater contamination by soil leaching, metal binding processes (retardation) were studied that are specific for these soil types under the existing acidifying conditions. From four fields nine contaminated profiles were sampled and analyzed for cadmium and zinc. Average concentrations of 131μg g−1 zinc and 1.6μg g−1 cadmium with maximum values of 2989μg g−1 respectively 16.3μg g−1 were found. In addition pH and contents of organic matter, aluminium, iron, and manganese were determined. The relative importance of these soil parameters for metal retardation is derived from the profiles. The data show that organic matter is the most important soil component for binding cadmium and zinc. Adsorption of cadmium and zinc on aluminium, iron and manganese (hydr) oxides appears to be of minor importance at low pH (〈5.5).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02407193
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    Partitioning of heavy metals in podzol soils contaminated by mine drainage waters, Dalarna, Sweden (1997)
    Springer
    Water, air & soil pollution 96 (1997), S. 39-59 
    Details
    ISSN: 1573-2932
    Keywords: acid mine drainage ; heavy metals ; jarosite ; soils ; Sweden
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The discharge of acidic mine drainage waters onto a hillslope in Dalarna, central Sweden, has lead to the contamination of the podzol soils with Cu, Fe, Ni, Pb, Zn and sulfate. Samples from contaminated and reference soils have been collected for chemical and mineralogical analyses. Jarosite is identified by x-ray diffraction analysis as a precipitate in the upper horizons (A, E, B) of the contaminated soils, where the soil acidity (pHKCl∼2.6) promotes jarosite stability. The sequential chemical extraction of soil samples indicates that, in the reference A horizon, Cu, Pb, Ni and Zn are bound primarily to cation exchange sites and organic matter. In the A horizon of the contaminated soils closest to the rock dump, metal partitioning is dominated by the Fe oxide fractions, despite the high organic matter content; Pb is almost completely bound to crystalline Fe oxides, possibly adsorbed to Fe oxides or occuring in a jarosite solid solution. In the reference B and C horizons, Cu, Ni and Zn are primarily adsorbed/coprecipitated in the Fe oxide fractions, while Pb remains with a large fraction bound to organic matter. In the Fe-rich B horizon of the contaminated soils, the partitioning of the metals in cation exchange sites and to organic matter has greatly increased relative to the reference soils, resulting from the mobilization of organo-metal complexes down the profile.
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    URL: http://dx.doi.org/10.1007/BF02407195
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    Heavy metals in allotment gardens close to an oil refinery in Płock (1997)
    Springer
    Water, air & soil pollution 96 (1997), S. 61-71 
    Details
    ISSN: 1573-2932
    Keywords: allotment gardens ; dustfall ; ground water ; heavy metals ; oil refinery ; soil ; vegetables
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In the period 1984–1990 the following vegetables were grown: red beet, carrot and parsley in four allotment gardens of Płock city (Central Poland), situated near the refinery and petrochemical works. Cadmium, lead, copper, chromium, zinc and manganese concentrations were determined in the leaves and roots of vegetables. The heavy metal accumulation in the soil, dustfall (measure of air pollution), and ground water was determined. The quality of the vegetable yield, notably of the leaves, was low. This was mainly due to the excessive chromium and cadmium content in the leaves. Accumulation of heavy metals was relatively low in the soil, rather high in the ground water and variable in the dust.
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    URL: http://dx.doi.org/10.1007/BF02407196
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    Tree bark as a bioindicator of air pollution in Navarra, spain (1997)
    Springer
    Water, air & soil pollution 98 (1997), S. 381-387 
    Details
    ISSN: 1573-2932
    Keywords: air pollution ; bioindicator ; biomonitoring ; tree bark
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract During a two year research period from 1992 to 1993, samples of different species of trees were taken in 17 forest stands located in Navarra, Spain. From these samples, bark extracts were prepared in which the pH and the conductivity were measured. The health of the sampling trees was also evaluated by determining the degree of defoliation and decoloration of the canopies. The bark tissue analysis revealed the presence of an environmental acidity gradient that decreased from NW to SE. This coincides with the location of important sources of pollution and their course of transport and dispersion. On the other hand, in the samples ofQuercus ilex a significant correlation between the pH and the defoliation levels (P≤0.01, r=0.62) was found. This fact reveals the potential usefulness of tree bark as a health bioindicator of trees.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02047045
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    Spatial and Temporal Variability of Total Non-Residual Heavy Metals Content in Stream Sediments from the Suquia River System, Cordoba, Argentina (1997)
    Springer
    Water, air & soil pollution 93 (1997), S. 303-319 
    Details
    ISSN: 1573-2932
    Keywords: heavy metals ; TNR ; stream sediments ; Suquía River
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The Suquía is a semiarid (rainfall, 700-900 mm y-1), medium-size (7700 km2) riversystem located in central Argentina. Its mountainous upper catchment includes pristine areas aswell as a variety of human settlements and a reservoir lake. A large city (Córdoba, ca. 1.3million inhabitants) and a terminal hypersaline lake are included in the middle and lower basin.Total non-residual (TNR) heavy metals (Pb, Cu, Ni, Zn, Mn, and Fe) have been determined inriver bed sediments in two seasons (spring and autumn), seeking to establish the factors whichcontrol the temporal and spatial variability. The major findings were: a) concentrations of TNRmetals were, in general, higher during springtime than during autumn, particularly downstreamfrom the city of Córdoba; b) organic matter played a significant role as a controlling factorwherever it defined reducing conditions, lowering the concentrations of Mn and Fe hydrousoxides; c) a higher organic load (e.g., downstream the city) and more pronounced reducingconditions could be the causes for the increased Fe concentration, probably precipitated assulfides; d) organic matter exhibited a closer correlation with some TNR metals in autumn,probably caused by a larger capacity for complexation in the biologically-processed organicdebris; and, e) the existence of pristine areas in the drainage basin allowed for the calculation ofenrichment factors (EF) which show the significance of several environmental impacts in theSuquía system.
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    URL: http://dx.doi.org/10.1023/A:1022113330970
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    Sulphur and Heavy Metal Concentrations in Scots Pine Bark in Northern Finland and the Kola Peninsula (1997)
    Springer
    Water, air & soil pollution 93 (1997), S. 395-408 
    Details
    ISSN: 1573-2932
    Keywords: air pollution ; pine bark ; sulphur ; pH ; conductivity ; heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Sulphur and heavy metal deposition in northern Finland (= in Lapland) and the Kola Peninsulawere surveyed using Scots pine bark samples. Sulphur concentrations in bark close to the Kolasmelters were on an average twice as high as on the Finnish side of the border. The Cu and Niconcentrations near the smelters were almost 100-fold the mean values in northern Finland. Therewas a marked decrease in the sulphur and heavy metal concentrations with increasing distancefrom the emission sources. The effects of emissions from the Kola Peninsula were evident inFinland only close to the border, especially in the eastern parts of Inari (NE corner of Lapland)where the Cu and Ni concentrations were 2- to 6-fold those in western Lapland. The sulphur andheavy metal concentrations in most of northern Finland were low. However were theconcentrations of Cr in bark in the SW corner of Lapland considerably high, due to the emissionsfrom the Tornio refined steel plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1022160930526
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    The Influence of Heavy Metals on Carbon Dioxide Evolution from a Typic Xerochrept Soil (1997)
    Springer
    Water, air & soil pollution 93 (1997), S. 409-417 
    Details
    ISSN: 1573-2932
    Keywords: CO2 evolution ; heavy metals ; loading effect ; metal equivalent
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In a laboratory study the effects on soil respiration of trace metals (Ni, Cd, Cu, Mn, Pb, Zn)added at loading rates ranging from 0 to 1000 µg g-1 were determined. Differences intoxicity with respect to the type of metal salt added were also evaluated. The inhibitory effect onsoil respiration differed considerably among the heavy metals and increased with the increasingloading rate. No linear relationships were found between the degree of inhibition and the levels oftotal and available metals. Toxicity evaluation at 20 and 50% inhibition of soil respiration showedCu as the most toxic and Mn as the most tolerable metal. A ‘metal equivalent’ was calculated asthe sum of the amounts of the available metals weighted to their relative toxicity with respect tothe least toxic one: Mn equivalent = Mn + 1.9Pb + 2.1Ni + 2.5Zn + 6.7Cd + 6.7Cu. The ionicpotential of the heavy metals was found to be positively related to the percent inhibition of soilrespiration. Chlorides and sulphates appeared to depress soil respiration more than nitrates, thelatter counter-balancing the toxic effect of the heavy metals.
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    URL: http://dx.doi.org/10.1023/A:1022111323406
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    Ash from Cereal and Rape Straw Used for Heat Production: Liming Effect and Contents of Plant Nutrients and Heavy Metals (1997)
    Springer
    Water, air & soil pollution 93 (1997), S. 93-108 
    Details
    ISSN: 1573-2932
    Keywords: straw ash ; ashes ; bottom ash ; fly ash ; biofuel ; cereal straw ; rape straw ; straw combustion ; fertilizer ; plant nutrients ; heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The composition of 79 samples of straw ash from seven heating plants in Sweden wasanalysed with the aim of evaluating straw ash as a fertilizer and liming agent. The variation in ashcomposition was explained mainly by ash fraction (bottom ash vs. fly ash) and straw type (wheat,barley, rye, rape) but also by heating plant. Compared with concentrations of Zn, Pb and Cd inbottom ash, levels in fly ash were 10-90 times higher. Fly ash also contained more Cu and Kcompared with bottom ash. The Cd/P ratio was 0.03 in bottom ash and 0.6 g Cd/kg P in fly ash.Ash from rape straw had a higher Ca content and liming effect compared with ash from cerealstraw; e.g., the liming effect of rape ash was more than three times higher than that of wheat ash.The liming effect varied between 3.5 and 44% CaO and depended mainly on the Ca content. Theaverage P content was 1.7% (0.2-4.4%), with slightly higher concentration in rape ash than inwheat ash. The potential for using straw ash as a fertilizer and liming agent is discussed. Compared withcommercial fertilizers the use of bottom ash as a P fertilizer results in a lower addition of Cd.However, the total heavy metal content of straw ash poses a potential problem.
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    URL: http://dx.doi.org/10.1023/A:1022179708289
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    Spatial and temporal variability of total non-residual heavy metals content in stream sediments from the Suquia River system, Cordoba, Argentina (1997)
    Springer
    Water, air & soil pollution 93 (1997), S. 303-319 
    Details
    ISSN: 1573-2932
    Keywords: heavy metals ; TNR ; stream sediments ; Suquía River
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The Suquía is a semiarid (rainfall, 700–900 mm y−1), medium-size (7700 km2) river system located in central Argentina. Its mountainous upper catchment includes pristine areas as well as a variety of human settlements and a reservoir lake. A large city (Córdoba, ca. 1.3 million inhabitants) and a terminal hypersaline lake are included in the middle and lower basin. Total non-residual (TNR) heavy metals (Pb, Cu, Ni, Zn, Mn, and Fe) have been determined in river bed sediments in two seasons (spring and autumn), seeking to establish the factors which control the temporal and spatial variability. The major findings were: a) concentrations of TNR metals were, in general, higher during springtime than during autumn, particularly downstream from the city of Córdoba; b) organic matter played a significant role as a controlling factor wherever it defined reducing conditions, lowering the concentrations of Mn and Fe hydrous oxides; c) a higher organic load (e.g., downstream the city) and more pronounced reducing conditions could be the causes for the increased Fe concentration, probably precipitated as sulfides; d) organic matter exhibited a closer correlation with some TNR metals in autumn, probably caused by a larger capacity for complexation in the biologically-processed organic debris; and, e) the existence of pristine areas in the drainage basin allowed for the calculation of enrichment factors (EF) which show the significance of several environmental impacts in the Suquía system.
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    URL: http://dx.doi.org/10.1007/BF02404763
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    Heavy metal contaminated soils in an old industrial area of Wales, Great Britain: Source identification through statistical data interpretation (1997)
    Springer
    Water, air & soil pollution 94 (1997), S. 85-98 
    Details
    ISSN: 1573-2932
    Keywords: soil ; pollution ; heavy metals ; smelters ; factor analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A combined statistical and computergraphic approach is proposed for apportionment and attribution of soil contaminants in complex areas. The field test site lies north of Swansea, south Wales and contains two major pollutant sources, an active nickel refiner and (4 km away) the site of major base metal smelting in the nineteenth century (the Lower Swansea Valley reclamation study area). Soil samples (70 samples, 0–15 cm) were collected on a regular grid of 1000 m interval. They were extracted using 0.05 M diammonium EDTA and the extracts analysed for Cd, Co, Cu, Fe, Mn, Ni, Pb and Zn. Soil pH and %organic content were also determined. Factor analysis yielded three groups which explained 73.8% of the data variance (1: Cd, Cu, %OM, Pb, Zn, Ni; 2: Cd, Zn, Mn, pH; 3: Cu, Mn, Co, Ni, Fe). Isoline plots were classifiable into the same three groups. It was concluded that factor 3 contained those elements associated with smelter emissions, factor 1 with contamination from the Lower Swansea Valley and in factor 2 pedogenetic processes control the occurrence of the elements.
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    URL: http://dx.doi.org/10.1007/BF02407095
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    INCREASED CADMIUM AVAILABILITY TO CROPS ON A SEWAGE-SLUDGE AMENDED SOIL (1997)
    Springer
    Water, air & soil pollution 94 (1997), S. 361-372 
    Details
    ISSN: 1573-2932
    Keywords: heavy metals ; contamination ; mobilization ; cadmium ; soil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Analysis of spatial distribution of sewage-sludge born cadmium on the experimental plot revealed positive correlation of total cadmium and organic matter. Soil pH fluctuated randomly on the field. ‘Bioavailable’ concentrations, as determined by NH4-acetate extraction, were closely correlated to the total cadmium levels, and only negligible effects of pH and/or organic matter fluctuations were recorded. Desorption model using modified Freundlich isotherm was applied to predict risks of cadmium solubilization at different conditions. Simulations revealed that the organic matter content within the ranges found at the experimental field cannot support a proper immobilization of cadmium at pH-range observed at the field. The phenomenon was explained by ineffective care for the soil in the past.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026407720823
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    Increased cadmium availability to crops on a sewage-sludge amended soil (1997)
    Springer
    Water, air & soil pollution 94 (1997), S. 361-372 
    Details
    ISSN: 1573-2932
    Keywords: heavy metals ; contamination ; mobilization ; cadmium ; soil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Analysis of spatial distribution of sewage-sludge born cadmium on the experimental plot revealed positive correlation of total cadmium and organic matter. Soil pH fluctuated randomly on the field. ‘Bioavailable’ concentrations, as determined by NH4-acetate extraction, were closely correlated to the total cadmium levels, and only negligible effects of pH and/or organic matter fluctuations were recorded. Desorption model using modified Freundlich isotherm was applied to predict risks of cadmium solubilization at different conditions. Simulations revealed that the organic matter content within the ranges found at the experimental field cannot support a proper immobilization of cadmium at pH-range observed at the field. The phenomenon was explained by ineffective care for the soil in the past.
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    URL: http://dx.doi.org/10.1007/BF02406068
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    Bivalves and heavy metals in polluted sediments: A chemometric approach (1997)
    Springer
    Water, air & soil pollution 99 (1997), S. 615-622 
    Details
    ISSN: 1573-2932
    Keywords: Near-shore sediments ; heavy metals ; bioindicators ; bivalves ; benthic populations ; multivariate analysis ; multiple regression analysis ; predictive models
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Copper, lead, cadmium, zinc, chromium, manganese, iron and nickel were determined in near-shore sediments in the harbour of Trieste (Northern Adriatic), in an area highly exposed to urban and industrial wastes, where severe alteration of benthic population was observed. A typical bivalve of this area,Corbula gibba, was used as bioindicator of sea-bottom pollution. Multivariate statistical analysis of the chemical data interpret concentrations and distributions of heavy metals in these sediments, attesting anthropogenic source for Cu, Pb, Cd and Zn. Using labile fractions of heavy metals in sediments as ‘predictors’, and length or bionnass of the bivalve as dependent variables, we obtained, by a multiple regression procedure, a predictive model showing the influence of metals on this benthic organism of this polluted area.
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    URL: http://dx.doi.org/10.1007/BF02406900
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    Tree bark as a bioindicator of air pollution in Navarra, Spain (1997)
    Springer
    Water, air & soil pollution 98 (1997), S. 381-387 
    Details
    ISSN: 1573-2932
    Keywords: air pollution ; bioindicator ; biomonitoring ; tree bark
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract During a two year research period from 1992 to 1993, samples of different species of trees were taken in 17 forest stands located in Navarra, Spain. From these samples, bark extracts were prepared in which the pH and the conductivity were measured. The health of the sampling trees was also evaluated by determining the degree of defoliation and decoloration of the canopies. The bark tissue analysis revealed the presence of an environmental acidity gradient that decreased from NW to SE. This coincides with the location of important sources of pollution and their course of transport and dispersion. On the other hand, in the samples of Quercus ilex a significant correlation between the pH and the defoliation levels (P≤0.01, r = 0.62) was found. This fact reveals the potential usefulness of tree bark as a health bioindicator of trees.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026431211784
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    Heavy Metal Content in Xylem Sap (Vitis Vinifera) from Mining and Smelting Areas (1998)
    Springer
    Environmental monitoring and assessment 50 (1998), S. 189-200 
    Details
    ISSN: 1573-2959
    Keywords: grapevines ; heavy metals ; mining ; smelting ; xylem sap
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract No data are available on the content of heavy metals in the xylem sap of grapevines growing in contaminated areas. The aim of this work was to obtain data on the concentration of Pb, Zn, Cd and Cu in the xylem sap of grapevine (Vitis vinifera) cultivar Monica (ungrafted), growing near contaminated sites: a smelter, an abandoned and an active mine, and to investigate relationships between xylem sap mineral composition and the heavy metal content of the soil. The concentrations of Pb, Zn, Cd and Cu in the sap were enhanced compared to that of the soil, ranging from 4.3 to 611.4 µg Pb $$g_{d.wt.}^{ - 1} $$]〉$$ , 801 to 6176 µg Zn $$g_{d.wt.}^{ - 1} $$]〉$$ , 2.5 to 45 µg Cd $$g_{d.wt.}^{ - 1} $$]〉$$ and 19.8 to 161 µg Cu $$g_{d.wt.}^{ - 1} $$]〉$$ . Dry matter of xylem sap was significantly related to the heavy metals content in xylem saps, but no significant relationship between the metals in sap and total and DTPA/TEA extractable metal fraction in soil was found.
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    URL: http://dx.doi.org/10.1023/A:1005854213903
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    Visual Assessment of Foliar Injury Induced by Ozone on Indicator Tobacco Plants: A Data Quality Evaluation (2000)
    Springer
    Environmental monitoring and assessment 62 (2000), S. 175-191 
    Details
    ISSN: 1573-2959
    Keywords: air pollution ; biomonitoring ; O3
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A group of 50 inexperienced scorers were asked to estimate –using standard reference photos – foliar injury induced by the gas pollutant ozone on the supersensitive indicator planttobacco (Nicotiana tabacum L.) cv. Bel-W3. Theaverage accuracy level was 56.1% (95.9% when theclasses nearest to the reality were also consideredcorrect) and the average repeatability was 65.4%. Theextreme classes were easily scored. Central classesproved to be more difficult to be evaluated: this maydepend on the fact that two leaves may have similaractual total injured area, but substantially differentnumbers and spatial distribution of the lesions. Insome cases we observed a prevalence of overestimationerrors in the high classes and underestimation in thelow classes: this is in contradiction with theWeber-Fechner law. It is noteworthy the very shorttime required by operators to score, regardless of the results.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006262603497
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    Monitoring Air Quality in Mountains: Designing an Effective Network (2000)
    Springer
    Environmental monitoring and assessment 64 (2000), S. 81-91 
    Details
    ISSN: 1573-2959
    Keywords: air pollution ; air quality ; monitoring network ; mountainous regions ; multi-scale assessment ; spatial and temporal scales ; tropospheric ozone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A quantitatively robust yet parsimonious air-quality monitoring network in mountainous regions requires special attention to relevant spatial and temporal scales of measurement and inference. The design of monitoring networks should focus on the objectives required by public agencies, namely: 1) determine if some threshold has been exceeded (e.g., for regulatory purposes), and 2) identify spatial patterns and temporal trends (e.g., to protect natural resources). A short-term, multi-scale assessment to quantify spatial variability in air quality is a valuable asset in designing a network, in conjunction with an evaluation of existing data and simulation-model output. A recent assessment in Washington state (USA) quantified spatial variability in tropospheric ozone distribution ranging from a single watershed to the western third of the state. Spatial and temporal coherence in ozone exposure modified by predictable elevational relationships (∼ 1.3 ppbv ozone per 100 m elevation gain) extends from urban areas to the crest of the Cascade Range. This suggests that a sparse network of permanent analyzers is sufficient at all spatial scales, with the option of periodic intensive measurements to validate network design. It is imperative that agencies cooperate in the design of monitoring networks in mountainous regions to optimize data collection and financial efficiencies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006498704222
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    Air Quality in Norwich, UK Multi-Scale Modelling to Assess the Significance of City, County and Regional Pollution Sources (2000)
    Springer
    Environmental monitoring and assessment 65 (2000), S. 425-433 
    Details
    ISSN: 1573-2959
    Keywords: PM10 ; urban air quality ; background ; NAME ; ADMS ; long range transport ; air pollution ; particulates ; nitrogen dioxide ; sulphur dioxide
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Norwich is the eastern most city in the United Kingdom. Despite a population of only 100,000 and very little local industry, studies have shown that the city experiences levels of nitrogen dioxide, ozone, particulates and sulphur dioxide exceeding the UK Air Quality Standards. Because of Norwich's situation within a large, predominantly rural area a large non-resident workforce is one factor that contributes to large, often very congested traffic flows. The city's location close to the European mainland also exposes it to polluted airmasses transported from the continent, especially in the case of particulates and ozone. In order to assess the relative contributions of local and regional sources, data from rural and urban monitoring sites are to be used in conjunction with ADMS-Urban and the UK Meteorological Office's NAME model.
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    URL: http://dx.doi.org/10.1023/A:1006477112407
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    Application of CFD Methods for Modelling in Air Pollution Problems: Possibilities and Gaps (2000)
    Springer
    Environmental monitoring and assessment 65 (2000), S. 181-189 
    Details
    ISSN: 1573-2959
    Keywords: air pollution ; Computer Fluid Dynamics (CFD) methods ; environment modelling ; atmospheric boundary layer (ABL) ; turbulence ; stable-stratified atmosphere ; complex terrain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Different urban air pollution problems deal with complex structure of air flows and turbulence. For such problems the Computer Fluid Dynamics (CFD) methods become widely used. However, this approach despite a number of advantages has some problems. Experience of use of CFD tools for development of models and suggestions of their applications for a local scale air pollution over a complex terrain and stable stratification are discussed in this paper, including: • Topography and complex geometry: choose of the co-ordinate system and computer grid; • Turbulence closure for air pollution modelling: modified k-ε model for stable stratified ABL; • Boundary conditions for vertical profiles of velocity for stable-stratified atmosphere; • Effects of the radiation and thermal budget of inclined surfaces to dispersion of pollutants; • Artificial sources of air dynamics and circulation. Some examples of CFD applications for air pollution modelling for a flat terrain, mountainous area, mining open cast and indoor ventilation are discussed. Modified k-ε model for stably-stratified ABL is suggested. Due to the isotropic character of the k-ε model a combination of it in vertical with the sub-grid turbulence closure in horizontal can be more suitable for ABL. An effective scheme of boundary conditions for velocity profiles, based on the developed similarity theory for stable-stratified ABL, is suggested. Alongside with the common studies of atmospheric dispersion, the CFD methods have also demonstrated a good potential for studying anthropogenic and artificial-ventilation sources of air dynamic and circulation in local-scale processes of air pollution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006442514766
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    The Draft of the New German Guideline VDI 3782/8 to Model Automobile Exhaust Dispersion (2000)
    Springer
    Environmental monitoring and assessment 65 (2000), S. 381-387 
    Details
    ISSN: 1573-2959
    Keywords: air pollution ; model ; guideline ; automobile ; concentrations ; MLuS ; STREET ; PROKAS ; MISKAM ; AIR-EIA
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The draft of the German guideline to calculate automobile exhaust dispersion is explained. It contains a two-stage-system: For first quick estimates the guideline contains the simple models MLuS and STREET. In case these models are not applicable or their results shows concentration levels close to the air quality standards, the more complex models PROKAS_V and MISKAM are recommended. PROKAS_V is a Gaussian plume model, MISKAM is a 3-dimensional microscale non hydrostatic flow model for built-up areas with an Eulerian dispersion model. The guideline comprises cases in rural areas without or with few adjacent buildings as well as urban areas with buildings near the roads. The contribution gives information about the models, typical results and some of the problems showing up presently.
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    URL: http://dx.doi.org/10.1023/A:1006464825611
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    Contrasting effects of sewage sludge and commercial fertilizer on egg to adult development of two herbivorous insect species (1994)
    Springer
    Ecotoxicology 3 (1994), S. 94-109 
    Details
    ISSN: 1573-3017
    Keywords: heavy metals ; old-fields ; municipal sludge ; blackfaced leafhopper ; Graminella nigrifrons ; Cicadellidae ; cabbage looper moth ; Noctuidae ; Trichoplusia ni
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Municipal sewage sludge containing heavy metals had a toxic effect on the development of the cabbage looper, Trichoplusia ni (Lepidoptera: Noctuidae), one of two herbivorous insects commonly found in an Ohio old-field which had been subjected to long-term sewage sludge application. Soils were removed in 1992 from an old-field following 11 years of heavy nutrient enrichment (1978 to 1988) with applications of either sewage sludge (Milorganite®) containing heavy metal contaminants or urea-phosphate fertilizer. Egg to adult development rate and survival of the blackfaced leafhopper, Graminella nigrifrons (Homoptera: Cicadellidae), and the cabbage looper was determined on maize (leafhopper) and broccoli (looper) seedlings grown in soils from sludge-treated, fertilizer-treated, or untreated control plots of the old-field. Fertilizer and sludgetreated soils had higher levels of N. P and organic matter, and a lower pH than the untreated control soils, while sludge-treated soils contained significantly higher concentrations of Cd, Cu, Pb, and Zn. Maize appeared to be unaffected by the three soil treatments, and survival and rate of egg to adult development of the leafhopper was not affected. Broccoli seedlings grown in both the high nutrient fertilizer and sludge soils were greener and larger than broccoli grown in control soils. However, the cabbage looper had significant larval and pupal mortality (25 to 40%) and prolonged egg to adult development on sludge-grown broccoli compared to control and fertilizer treatments. As assimilation into the food chain of heavy metals and other organic pollutants, such as PCBs, is in part a function of the interaction of soil chemistry and type of plant, the application of municipal sludges to old-fields needs to be carefully monitored, as contaminants may have significant developmental and behavioural effects on some secondary links in the old-field food chain.
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    URL: http://dx.doi.org/10.1007/BF00143408
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    Use of formerly plowed land in New England to monitor the vertical distribution of lead, zinc and copper in mineral soil (1997)
    Springer
    Water, air & soil pollution 95 (1997), S. 75-85 
    Details
    ISSN: 1573-2932
    Keywords: Pb ; Cu ; Zn ; trace metal pollution ; air pollution ; Ap horizon ; forest soils
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In this study, we used once-plowed lands that have returned to forest for over 50 years to study the vertical distribution of meteorologically-deposited lead. These mineral soils were an essentially homogeneous 20 cm-thick layer when last plowed. As such, they were effectively a “clean slate” upon which pollutants deposited since the last plowing can be measured without the confounding aspects of well-developed natural soil horizons and the spatial heterogeneity of native forest soils. The concentration and amount of lead as well as copper and zinc, biologically active metals, were measured at five sites in New England. In the mineral soil, copper content ranged from 25 mg cm depth−1 m−2 at 0–2 cm depth to 37 mg cm depth−1 m−2 at 6–8 cm depth, but showed no consistent pattern with depth at all sites. Zinc concentrations and amounts increased with depth in the mineral soil to 14 μg g−1 and 167 mg cm depth−1 m−2, respectively. In contrast, lead showed a decrease with depth from 350 mg cm depth−1 m−2 at 0–2 cm depth to 102–108 mg cm depth−1 m−2 between 10 and 20 cm depth. At all five sites, decreases in lead concentration with depth were correlated with decreases in the amount of organic mater. Amounts of total lead deposited since the abandonment from plowing have been estimated at 1.4 g m-2 in rural sites. Thirty-five percent of this presumably anthropogenically-derived lead was in the forest floor; the remaining 65 % was in the upper mineral soil.
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    URL: http://dx.doi.org/10.1007/BF02406157
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    Validity of lowcost laboratory geochemistry for environmental applications (1997)
    Springer
    Water, air & soil pollution 95 (1997), S. 119-131 
    Details
    ISSN: 1573-2932
    Keywords: geochemical investigations ; geochemical validation ; heavy metals ; ICP-AES ; environmental monitoring
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A little known alternative to highcost environmental analysis, especially in Europe, is the use of commercially available, lowcost exploration geochemical laboratory analysis. To test for suitable accuracy and precision, both indicated parameters were monitored during several sample runs for environmental examinations at a selected commercial geochemical laboratory using various digestive methods and ICP-AES (Inductively Coupled Plasma Atomic Emission Spectrometry). By evaluating duplicate samples and repeated measurements of internal standards and comparing the results with precision needed for environmental investigations, exploration geochemical analysis is found to be more than adequate for most elements and digestive methods in environmental applications. Accuracy is highest for total digestion ICP-AES analysis, with expectedly greater error margins for aqua regia digestion. Lowcost exploration geochemical analysis is an inexpensive analytical tool for screening, detailed investigations and monitoring of contaminated sites.
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    URL: http://dx.doi.org/10.1007/BF02406160
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    Long-term transformations and redistribution of potentially toxic heavy metals in arid-zone soils incubated: I. Under saturated conditions (1997)
    Springer
    Water, air & soil pollution 95 (1997), S. 399-423 
    Details
    ISSN: 1573-2932
    Keywords: fractionation ; redistribution ; saturation ; kinetics ; heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Solid-phase transformations of Cd, Cu, Cr, Ni and Zn, added as soluble salts at several levels to two arid-zone soils, were studied over a period of one year. The soils were maintained under a saturated-paste regime and sampled periodically. A selective sequential dissolution procedure was employed to determine the changes in metal distribution among six operationally defined solid-phase fractions. A function,U ts was introduced to measure the fractional attainment of equilibrium of the soils following a perturbation. The direction and rate of redistribution of the added metals in the soils were affected by the nature of the metal, the soil properties and the metal loading level. Cd added to the soils was transferred from the exchangeable (EXC) into the carbonate (GARB) fraction. When soluble Cu, Cr, Ni and Zn were added at low loading levels, metals were transferred from the reducible oxides(RO) bound and easily reducible oxides (ERO) bound fractions and the EXC fraction, into the CARB fraction. However, at the higher loading level, metals were transferred from the EXC and CARB fractions into the organic matter bound (OM), ERO and RO fractions. TheU ts function approached lower values as incubation continued but remained removed from 1. The overall flux of metals among fractions was the combined result of the readjustment of the metals in the native soil to changing conditions due to saturation, and the transfer of added soluble metals to the less labile fractions.
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    URL: http://dx.doi.org/10.1007/BF02406176
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    USE OF FORMERLY PLOWED LAND IN NEW ENGLAND TO MONITOR THE VERTICAL DISTRIBUTION OF LEAD, ZINC AND COPPER IN MINERAL SOIL (1997)
    Springer
    Water, air & soil pollution 95 (1997), S. 75-85 
    Details
    ISSN: 1573-2932
    Keywords: Pb ; Cu ; Zn ; trace metal pollution ; air pollution ; Ap horizon ; forest soils
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract In this study, we used once-plowed lands that have returned to forest for over 50 years to study the vertical distribution of meteorologically-deposited lead. These mineral soils were an essentially homogeneous 20 cm-thick layer when last plowed. As such, they were effectively a “clean slate” upon which pollutants deposited since the last plowing can be measured without the confounding aspects of well-developed natural soil horizons and the spatial heterogeneity of native forest soils. The concentration and amount of lead as well as copper and zinc, biologically active metals, were measured at five sites in New England. In the mineral soil, copper content ranged from 25 mg cm depth-1 m-2 at 0–2 cm depth to 37 mg cm depth-1 m-2 at 6–8 cm depth, but showed no consistent pattern with depth at all sites. Zinc concentrations and amounts increased with depth in the mineral soil to 14 μg g-1 and 167 mg cm depth-1 m-2, respectively. In contrast, lead showed a decrease with depth from 350 mg cm depth-1 m-2 at 0–2 cm depth to 102–108 mg cm depth-1 m-2 between 10 and 20 cm depth. At all five sites, decreases in lead concentration with depth were correlated with decreases in the amount of organic mater. Amounts of total lead deposited since the abandonment from plowing have been estimated at 1.4 g m-2 in rural sites. Thirty-five percent of this presumably anthropogenically-derived lead was in the forest floor; the remaining 65% was in the upper mineral soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1026451710848
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    PARTITIONING OF HEAVY METALS IN PODZOL SOILS CONTAMINATED BY MINE DRAINAGE WATERS, DALARNA, SWEDEN (1997)
    Springer
    Water, air & soil pollution 96 (1997), S. 39-59 
    Details
    ISSN: 1573-2932
    Keywords: acid mine drainage ; heavy metals ; jarosite ; soils ; Sweden
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The discharge of acidic mine drainage waters onto a hillslope in Dalarna, central Sweden, has lead to the contamination of the podzol soils with Cu, Fe, Ni, Pb, Zn and sulfate. Samples from contaminated and reference soils have been collected for chemical and mineralogical analyses. Jarosite is identified by x-ray diffraction analysis as a precipitate in the upper horizons (A, E, B) of the contaminated soils, where the soil acidity (pHKCl ∼ 2.6) promotes jarosite stability. The sequential chemical extraction of soil samples indicates that, in the reference A horizon, Cu, Pb, Ni and Zn are bound primarily to cation exchange sites and organic matter. In the A horizon of the contaminated soils closest to the rock dump, metal partitioning is dominated by the Fe oxide fractions, despite the high organic matter content; Pb is almost completely bound to crystalline Fe oxides, possibly adsorbed to Fe oxides or occuring in a jarosite solid solution. In the reference B and C horizons, Cu, Ni and Zn are primarily adsorbed/coprecipitated in the Fe oxide fractions, while Pb remains with a large fraction bound to organic matter. In the Fe-rich B horizon of the contaminated soils, the partitioning of the metals in cation exchange sites and to organic matter has greatly increased relative to the reference soils, resulting from the mobilization of organo-metal complexes down the profile.
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    URL: http://dx.doi.org/10.1023/A:1026461612610
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    Hydrochemistry of the aquifers in the Rio las Avenidas basin, Pachuca, Hidalgo, Mexico (1997)
    Springer
    Water, air & soil pollution 96 (1997), S. 185-201 
    Details
    ISSN: 1573-2932
    Keywords: Avenidas basin ; Pachuca mines ; hydrochemistry ; hydrochemical facies ; heavy metals ; groundwater
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Groundwater in the Rio de las Avenidas sub-basin corresponds to the bicarbonate-sodium and bicarbonate-calcium hydrochemical facies, which result from the mineralization of water passing through alkaline rocks (andesites) which prevail in this basin. However, the presence of high concentrations of Na+ and K+ reveals the existence of an external inflow of these elements: the registered mean values are respectively 94.3 and 19.0 ppm, with the Tèllez and Tizayuca areas standing out with reported values of up to 142 ppm. As for the concentration of soluble water cations, we find in decreasing order: Na+, Ca2+, Mg2+, K+, along with the anions HCO3 −, Cl−, SO4 2−, CO3 −, which combine to form the NaHCO3, NaCl, Ca(HCO3)2, MgSO4 and KCl salts. The presence of biological contaminants, P and detergents in the groundwater indicates that it may have been contaminated by waste water. In addition to the contaminants mentioned above, large quantities of Pb, B, Zn, Fe, Mn, Cr, Co were detected and although Fe, Pb, Zn, B, and Mn are closely related to the local lithology, the high concentrations of these elements along with the occurrence of Co, Cr, Cd, and Ni confirm the gradual degradation of the aquifers in the sub-basin. The water temperature indicates the existence of low temperature thermal processes in the area.
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    URL: http://dx.doi.org/10.1007/BF02407204
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    HYDROCHEMISTRY OF THE AQUIFERS IN THE RIO LAS AVENIDAS BASIN, PACHUCA, HIDALGO, MEXICO (1997)
    Springer
    Water, air & soil pollution 96 (1997), S. 185-201 
    Details
    ISSN: 1573-2932
    Keywords: Avenidas basin ; Pachuca mines ; hydrochemistry ; hydrochemical facies ; heavy metals ; groundwater
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Groundwater in the Rio de las Avenidas sub-basin corresponds to the bicarbonate-sodium and bicarbonate-calcium hydrochemical facies, which result from the mineralization of water passing through alkaline rocks (andesites) which prevail in this basin. However, the presence of high concentrations of Na+ and K+ reveals the existence of an external inflow of these elements: the registered mean values are respectively 94.3 and 19.0 ppm, with the Tèllez and Tizayuca areas standing out with reported values of up to 142 ppm. As for the concentration of soluble water cations, we find in decreasing order: Na+, Ca2+, Mg2+, K+,along with the anions HCO3 -, Cl-, SO4 2-, CO3 -, which combine to form the NaHCO3, NaCl, Ca(HCO3 2, MgSO4 and KCl salts. The presence of biological contaminants, P and detergents in the groundwater indicates that it may have been contaminated by waste water. In addition to the contaminants mentioned above, large quantities of Pb, B, Zn, Fe, Mn, Cr, Co were detected and although Fe, Pb, Zn, B,and Mn are closely related to the local lithology, the high concentrations of these elements along with the occurrence of Co, Cr, Cd, and Ni confirm the gradual degradation of the aquifers in the sub-basin. The water temperature indicates the existence of low temperature thermal processes in the area.
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    URL: http://dx.doi.org/10.1023/A:1026452116613
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    Computing atmospheric transport and deposition of heavy metals over Europe: Country budgets for 1985 (1996)
    Springer
    Water, air & soil pollution 92 (1996), S. 343-374 
    Details
    ISSN: 1573-2932
    Keywords: long-range transport ; atmospheric deposition ; heavy metals ; country budgets
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The Heavy Metal Eulerian Transport (HMET) model has been used to calculate the exchange of As, Cd, Pb and Zn between European countries in 1985. The model was run separately for each emitter country and the computed deposition field was used to calculate the contribution of the emitter to each receptor country. The results of these computations are presented in the form of a country budget matrix for each metal. Accuracy of such computations is dependant on the size and linearity of the numerical method applied to the transport equation. Exchange of heavy metals due to atmospheric transport over Europe is significant. Approximately 30% to 90% of the heavy metals emitted from each country is deposited in other countries. The remaining mass is deposited in European seas, Atlantic Ocean and transported outside the model domain. The largest part of the emission from each country is deposited in the same country. The next largest fraction is transported to the nearest neighbors. The results indicate also a significant long range ransport of heavy metals to the Soviet Union. This is partly justified by the size and location of this receptor country, as well as, the prevailing meteorological conditions in Europe. However, this large transport to USSR is slightly overestimated due to some artificial properties of the numerical method applied to basic model equations. In addition to the country budget, export versus import and emission versus deposition of metals were analyzed for each country. The largest positive difference between export and import was found for Poland, German Federal Republic and Yugoslavia (As, Cd and Zn), and United Kingdom, Italy and Belgium (Pb). The Soviet Union and Czechoslovakia are the countries where import of all metals is significantly larger than export. When emission versus deposition of heavy metals is analyzed, the Soviet Union has much higher emissions than deposition of all metals compared to other European countries.
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    URL: http://dx.doi.org/10.1007/BF00283567
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    On the Assessment of Sulphur Deposition on Forests Growing Over the Areas of Industrial Impact (1997)
    Springer
    Environmental monitoring and assessment 48 (1997), S. 125-137 
    Details
    ISSN: 1573-2959
    Keywords: air pollution ; critical levels ; critical loads ; forestdamage assessment ; industrial emissions ; sulphur deposition
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A method of calculation of sulphur deposition values on forests subjectto long-term industrial influence is presented. Investigations wereconducted in the vicinities of nickel smelters of Kola peninsula. Sulphurdioxide (SO2) is the major phytotoxicant emitted by theseenterprises. Depositions of sulphur were calculated on the basis of ground air layer pollution. To determine it a mathematical model was applied.Field surveys of forest ecosystems response to air contamination werecarried out and areas of different forest damage degree were identified.More than 4300 km2 of the territory of Kola peninsula isunder the impact of nickel enterprises. Average SO2concentration over the area of slight damage to forests is about 20µg/m3. It corresponds to the critical level proposed for forest ecosystems (UN ECE, 1993). Sulphur deposition over thearea of slight damage varies from 0.6 to 1.0 g/m2yr-1 for coniferous forests. For deciduous forests it isabout 1.0 g/m2 yr-1. These values are close totarget loads for highly sensitive ecosystems (Nilsson et al., 1991), but they exceed critical loads for the northern regions of Europe (Downing etal., 1993).
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    URL: http://dx.doi.org/10.1023/A:1005744301889
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    Heavy Metals and Chlorinated Hydrocarbon Concentrations in the Red Fox in Relation to Some Biological Paramaters (1999)
    Springer
    Environmental monitoring and assessment 54 (1999), S. 87-100 
    Details
    ISSN: 1573-2959
    Keywords: heavy metals ; organochlorines ; red fox
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Heavy metals and organochlorine contamination were analyzed in tissues of red foxes (Vulpes vulpes) from the Province of Siena (central Italy). Mercury (Hg), cadmium (Cd) and lead (Pb) concentrations were assessed in liver tissues and the data were analyzed for differences in relation to sex and age. Overall Hg, Cd and Pb mean values were 0.16, 0.62 and 0.64 μg g_1 d.w., respectively. HCB, DDT and PCB concentrations were assayed in fatty tissues and muscle. The highest levels of those pollutants were found in muscle (0.47, 1.16 and 20.2 μg g_1 lipid basis of HCB, DDTs and PCBs respectively), rather than in fat (0.23, 0.49 and 7.2 μg g_1 l.b. of HCB, DDTs and PCBs respectively). Pollutant accumulation was analyzed in relation to sex, age and sexual maturity of females.
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    URL: http://dx.doi.org/10.1023/A:1005974014029
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    Differentiation of Clams from Fishing Areas as an Approximation to Coastal Quality Assessment (1999)
    Springer
    Environmental monitoring and assessment 54 (1999), S. 229-237 
    Details
    ISSN: 1573-2959
    Keywords: coastal index ; discriminant analysis ; fishing areas ; heavy metals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The quality assessment of fishing areas on the basis of the levels of heavy metals in clams ( Chamelea gallina) was attempted by using discriminant analysis. Five metals, Hg, Pb, Cd, Cu and Zn, were analyzed in the soft edible parts of clams from three fishing areas. The descriptive methods applied to data obtained do not show enough differences between sampling stations for management purposes. Only discriminant analysis is successful in the differentiation between all fishing areas. Through the first discriminant function, the group centroids are proposed as index of different source of clams. These values standardized are proposed as coastal quality index.
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    URL: http://dx.doi.org/10.1023/A:1005960212211
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    Levels of Heavy Metals in Karelian Wildlife, 1989–91 (1999)
    Springer
    Environmental monitoring and assessment 56 (1999), S. 177-193 
    Details
    ISSN: 1573-2959
    Keywords: accumulation ; bioindicators ; concentrations ; heavy metals ; Karelia ; wildlife
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The levels of mercury, cadmium, lead, copper, nickel, zinc and iron were determined in samples of liver, kidney, skeletal muscle, heart, lungs and hair of moose (N = 67), reindeer (N = 45), brown bear (N = 18), wild boar (N = 10) and squirrel (N = 18) shot in Karelia from 1989 to 1991 during regular hunting. The highest heavy-metal concentrations were found in livers, kidney, lungs and hair samples. The samples of muscle contained lowest levels of these elements. The tissues of moose, reindeer and brown bear were contaminated with heavy metals to a greatest extent. Lowest levels of toxicants were recorded in wild boar. Results indicate a widespread presence of heavy metal in the environment and in wildlife, which may be linked to acid precipitation. There was no evidence of these elements accumulated to toxic levels, but Karelian public have been informed that the eating of moose liver and kidney would probably result in their exceeding WHO standard weekly intake limit for cadmium.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1005988511058
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  • 97
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    Vegetation monitoring in South-Varanger, Norway – species composition of ground vegetation and its relation to environmental variables and pollution impact (1999)
    Springer
    Environmental monitoring and assessment 58 (1999), S. 1-21 
    Details
    ISSN: 1573-2959
    Keywords: air pollution ; indirect and direct gradient analysis ; vegetation monitoring
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The area along the Norwegian-Russian border is threatened by air pollution from emission sources on the Kola Peninsula. A permanent network of 78 systematically chosen monitoring sites has been established in eastern Finnmark, Norway. Species abundance data from the ground vegetation have been recorded from 1320 systematically chosen permanent plots inside 66 of these sites, using frequency in subplots and visual estimates of percentage cover. Environmental variables were obtained for the whole site. Multivariate data analysis has been used to describe the variation in the species composition and to study its relation to environmental variables and pollution impact. The analyses show that much of the variation in the species composition, based on average species abundance at the sites, is well explained by different soil and climatic conditions. However, estimated SO2 deposition, Ni, and Cu in the soil, and Ni in Cladina tissue have also been found to be statistically significantly correlated with the variation in the species data, but they explain only a minor part of the variation. The pollution impact over several years may have lead to a reduced lichen cover in the bottom-layer vegetation. Further development in an either negative or positive direction can be detected by re-investigations of the monitoring sites.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006026926667
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  • 98
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    Electronic Resource
    Assessment of the Heavy Metal Pollution Effects on the Soil Respiration in the Baix Llobregat (Catalonia, NE Spain) (2000)
    Springer
    Environmental monitoring and assessment 61 (2000), S. 301-313 
    Details
    ISSN: 1573-2959
    Keywords: biological activity ofsoil ; constant-pressure volumetric respirometer ; heavy metals ; respirometry methods ; soil ; soil degradation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A main goal of investigations is to determine could a soilrespiration be an indicator of the soil pollution. In this case a measured levelof the soil oxygen consumption depends of its pollution. It alsomeans that the pollution reduces biological processes in edaphon.Investigated soil samples were taken from polluted andnon-polluted places in the Baix Llobregat near Barcelona (Catalonia, NE Spain). Soil samples were taken from the top ofsoil (0–5 cm) without a litter. Soil analysis were done, determining percentage shares of coarsefragments, coarse sand, fine sand, coarse silt, fine silt, clay,CaCO3, organic matter as well as water pH and conductivityCE (1:5 [mS cm-1]). Also were determined (in mg kg-1)quantities of heavy metals, as Fe, Al, Mn, Zn, Cr, Ni, V, Cu, Cd, Pb.The soil respiration was investigated in temperatures15 and 30 °C and with controlled humidity.The respiration in 30 °C is number of times greater thenin 15 °C both for polluted and non-polluted soils.Particularly high coefficients of correlation between the soilrespiration and soil pollution in polluted soils were obtainedfor Pb: r = 0.75 in 15 °C and r = 0.98 in30 °C; for Ba: 0.90 and 0.57; for V: 0.99 and 0.81. In non-polluted soils highest correlation coefficients are for Pb: r = 0.70 in 15 °C; Fe: 0.60 and 0.72; Al: 0.68 and0.64; Mn: 0.51 and 0.66; Ba: 0.63 and 0.61; Cr: 0.94 and0.70; Ni: 0.64 and 0.65; Cu: 0.69 and 0.48; as well as V: 0.62in 15 °C; and Cd: 0.69 in 15 °C.This way the soil respiration could be a good indicator of the soil pollution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006105329210
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  • 99
    Electronic Resource
    Electronic Resource
    Characterisation of Particulate Matter Sampled during a Study of Children's Personal Exposure to Airborne Particulate Matter in a UK Urban Environment (2000)
    Springer
    Environmental monitoring and assessment 65 (2000), S. 69-77 
    Details
    ISSN: 1573-2959
    Keywords: air pollution ; personal exposure monitoring ; children ; particulate matter ; seasons ; Scanning Electron Microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The personal exposure of children aged 9 – 11 years to particulate matter (PM10 and PM2.5) was carried out between January and September 1997 in the London Borough of Barnet. Personal sampling along with home, garden and classroom microenvironmental monitoring was completed for all ten children. Each child was monitored for five days during winter, spring and summer. All children completed daily time activity diaries to provide information on any potential activities that could influence their exposure to particulate matter. Each evening a household activity questionnaire was also completed by the parents. Personal Environmental Monitors were used to sample personal exposure to PM10 and PM2.5. Harvard Impactors were used for the microenvironmental sampling of both size fractions. The children's mean personal exposure concentrations for PM10 during winter, spring and summer were 72, 54 and 35 µg/m3 respectively and for PM2.5 22, 17 and 18 µg/m3 respectively. In order to determine the potential sources of particulate matter, analysis of the Teflon filters has been undertaken. The physical characteristics of the particles have been identified using Scanning Electron Microscopy. The relationships between personal exposure concentrations and the different microenvironments will be discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1006447807980
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  • 100
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    Electronic Resource
    Health effects and social costs of particulate pollution – a case study for Oslo (1998)
    Springer
    Environmental modeling and assessment 3 (1998), S. 47-61 
    Details
    ISSN: 1573-2967
    Keywords: air pollution ; health effects ; social costs ; externalities ; integrated approach
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract This study analyses health damages from particulate pollution and the corresponding social costs. The analyses, which are based on transferring dose–response functions to Norway, is made within an integrated approach, where the economic impacts of the health damages are handled separately from the non‐economic welfare effects. We find that the social costs of health damages in Oslo are significant, and that the non‐economic welfare effects clearly dominate the cost figure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019054604439
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