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  • Articles  (132)
  • mercury  (50)
  • monitoring  (43)
  • lead  (42)
  • 1995-1999  (132)
  • Energy, Environment Protection, Nuclear Power Engineering  (132)
  • 1
    Electronic Resource
    Electronic Resource
    Influence of Prenatal Mercury Exposure Upon Scholastic and Psychological Test Performance: Benchmark Analysis of a New Zealand Cohort (1998)
    Springer
    Risk analysis 18 (1998), S. 701-713 
    Details
    ISSN: 1539-6924
    Keywords: Benchmark ; mercury ; risk assessment ; epidemiology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract This paper presents benchmark (BMD) calculations and additional regression analyses of data from a study in which scores from 26 scholastic and psychological tests administered to 237 6- and 7-year-old New Zealand children were correlated with the mercury concentration in their mothers' hair during pregnancy. The original analyses of five test scores found an association between high prenatal mercury exposure and decreased test performance, using category variables for mercury exposure. Our regression analyses, which utilized the actual hair mercury level, did not find significant associations between mercury and children's test scores. However, this finding was highly influenced by a single child whose mother's mercury hair level (86 mg/kg) was more than four times that of any other mother. When that child was omitted, results were more indicative of a mercury effect and scores on six tests were significantly associated with the mothers' hair mercury level. BMDs calculated from five tests ranged from 32 to 73 mg/kg hair mercury, and corresponding BMDLs (95% lower limits on BMDs) ranged from 17 to 24 mg/kg. When the child with the highest mercury level was omitted, BMDs ranged from 13 to 21 mg/kg, and corresponding BMDLs ranged from 7.4 to 10 mg/kg.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/B:RIAN.0000005917.52151.e6
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  • 2
    Electronic Resource
    Electronic Resource
    Monitoring of heavy metals in protected forest catchments in Sweden (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 755-760 
    Details
    ISSN: 1573-2932
    Keywords: Heavy metals ; catchment studies ; metal fluxes ; monitoring
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Long-term integrated catchment monitoring within the Swedish Environmental Monitoring Programme (PMK) aims primarely at the fate and effects of pollutants in mature ecosystems, mainly protected boreal forests. The measurements that were conducted since the early eighties, with some variation, included deposition, throughfall, litterfall and the chemistry of soil water, groundwater and runoff water.Together with, or perhaps partly due to acidification, accumulation and transport of heavy metals are a serious threat to the ecosystem and in the end to the health of human beings. This paper discuss the behaviour of Hg, Pb, Cd, Zn and Cu based on the experiece gained from the studies in the small catchment areas. The importance of present deposition, soil storage and biogeochemical condition for metal mobility to the transport of metals is discussed The storages of Hg and Pb have been built up during a long time span and are very large in comparison with the flux. The present atmospheric deposition have probably little impact on the flux, which rather is governed by the biogeochemical conditions. There is still a small accumulation of Cd, but its great mobility under acidic conditions makes input and output almost in balance. A reduction in deposition will probably have an immediate effect on flux, which also is the case for Zn. Cu generally accumulates in soil. The mobility and hence the flux are certainly regulated by the biogeochemical conditions, but more detailed studies are required to reveal the general mecanisms for Cu transport within the catchment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00476920
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  • 3
    Electronic Resource
    Electronic Resource
    Policies, measures and the monitoring needs of forest sector carbon mitigation (1997)
    Springer
    Mitigation and adaptation strategies for global change 2 (1997), S. 101-115 
    Details
    ISSN: 1573-1596
    Keywords: Carbon dioxide ; costs ; forests ; Joint Implementation ; mitigation ; monitoring ; policies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Abstract Forest sector mitigation options can be grouped into three categories: (1) management for carbon (C) conservation, (2) management for C storage, and (3) management for C substitution. The paper provides background information on the technical potential for C conservation and sequestration worldwide and the average costs of achieving it. It reviews policy measures that have been successfully applied at regional and project levels toward the reduction of atmospheric greenhouse gases. It also describes both national programs and jointly implemented international activities. The monitoring methods, and the items to monitor, differ across these categories. Remote sensing is a good approach for the monitoring of C conservation, but not for C substitution, which requires estimation of the fossil fuels that would be displaced and the continued monitoring of electricity generation sources. C storage, on the other hand, includes C in products which may be traded internationally. Their monitoring will require that bi- or multi-lateral protocols be set up for this purpose.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02437198
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  • 4
    Electronic Resource
    Electronic Resource
    Project specific monitoring and verification: State of the art and challenges (1997)
    Springer
    Mitigation and adaptation strategies for global change 2 (1997), S. 191-202 
    Details
    ISSN: 1573-1596
    Keywords: Carbon storage ; Joint Implementation ; monitoring ; remote sensing
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Abstract Adequate monitoring of carbon sequestered by forestry activities is essential to the future of forestry as a climate change mitigation option. A wide range of approaches has been taken to monitor changes in forest carbon attributable to project activities. This paper describes simple, least-cost/least-precision methods, remote sensing, periodic carbon inventories, and traditional research methods. Periodic carbon inventories are the preferred approach because they are cost-effective, provide measurements with known levels of precision, and allow the monitoring of other values such as biodiversity and commercial timber volumes. Verification of monitoring estimates is discussed as an auditing process designed to evaluate reported carbon sequestration values. The limitations of remote sensing for biomass determination and the potential for changes in monitoring approaches due to improvements in technology are briefly reviewed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02437203
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  • 5
    Electronic Resource
    Electronic Resource
    A Framework for Monitoring and Evaluating Carbon Mitigation by Farm Forestry Projects: Example of a Demonstration Project in Chiapas, Mexico (1997)
    Springer
    Mitigation and adaptation strategies for global change 2 (1997), S. 231-246 
    Details
    ISSN: 1573-1596
    Keywords: Farm forestry ; carbon sequestration ; monitoring ; evaluation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Abstract In Mexico an estimated 4.5 × 106ha are available for farm forestry, while up to 6.1 × 106 ha could be saved from deforestation by making shifting agriculture more productive and sustainable. Various farm forestry systems are technically, socially, and economically viable, including live fences, coffee with shade trees, plantations, tree enrichment of fallows, and taungya, with a C-sequestration potential varying from 17.6 to 176.3 Mg C ha−1. A self-reporting system with on-site spot checks is presented for the monitoring and evaluation (M&E), and will be tested in a farm forestry C-sequestration pilot project, to begin in Chiapas, Mexico, in 1997. The M&E procedure will facilitate the collection of field data at low cost, help ensure that the systems continue to address the needs of farmers, and give farmers an understanding of the value of the service that they are providing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/B:MITI.0000004479.17784.f8
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  • 6
    Electronic Resource
    Electronic Resource
    Policies, Measures and the Monitoring Needs of Forest Sector Carbon Mitigation (1997)
    Springer
    Mitigation and adaptation strategies for global change 2 (1997), S. 101-115 
    Details
    ISSN: 1573-1596
    Keywords: Carbon dioxide ; costs ; forests ; Joint Implementation ; mitigation ; monitoring ; policies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Abstract Forest sector mitigation options can be grouped into three categories: (1) management for carbon (C) conservation, (2) management for C storage, and (3) management for C substitution. The paper provides background information on the technical potential for C conservation and sequestration worldwide and the average costs of achieving it. It reviews policy measures that have been successfully applied at regional and project levels toward the reduction of atmosphere greenhouse gases. It also describes both national programs and jointly implemented international activities. The monitoring methods, and the items to monitor, differ across these categories. Remote sensing is a good approach for the monitoring of C conservation, but not for C substitution, which requires estimation of the fossil fuels that would be displaced and the continued monitoring of electricity generation sources. C storage, on the other hand, includes C in products which may be traded internationally. Their monitoring will require that bi- or multi-lateral protocols be set up for this purpose.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/B:MITI.0000004481.90791.67
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  • 7
    Electronic Resource
    Electronic Resource
    A framework for monitoring and evaluating carbon mitigation by farm forestry projects: Example of a demonstration project in Chiapas, Mexico (1997)
    Springer
    Mitigation and adaptation strategies for global change 2 (1997), S. 231-246 
    Details
    ISSN: 1573-1596
    Keywords: Farm forestry ; carbon sequestration ; monitoring ; evaluation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geography
    Notes: Abstract In Mexico an estimated 4.5×106ha are available for farm forestry, while up to 6.1×106ha could be saved from deforestation by making shifting agriculture more productive and sustainable. Various farm forestry systems are technically, socially, and economically viable, including live fences, coffee with shade trees, plantations, tree enrichment of fallows, and taungya, with a C-sequestration potential varying from 17.6 to 176.3 Mg C ha−1. A self-reporting system with on-site spot checks is presented for the monitoring and evaluation (M&E), and will be tested in a farm forestry C-sequestration pilot project, to begin in Chiapas, Mexico, in 1997. The M&E procedure will facilitate the collection of field data at low cost, help ensure that the systems continue to address the needs of farmers, and give farmers an understanding of the value of the service that they are providing.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02437206
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  • 8
    Electronic Resource
    Electronic Resource
    Sulphur and nitrogen deposition in Norway, status and trends (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 623-628 
    Details
    ISSN: 1573-2932
    Keywords: monitoring ; deposition ; sulphur ; nitrogen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The total deposition of sulphur (S) and nitrogen (N) components in Norway during the period 1988–1992 has been estimated on the basis of measurement data of air- and precipitation chemistry from the national monitoring network. There are large regional variations in depositions with highest values in the southwestern part of Norway. Time series analysis of annual mean concentrations of sulphur dioxide (SO2) and sulphate (SO4 −−) in air, non marine SO4 −−, nitrate (NO3 −) and ammonium (NH4 +) in precipitation, shows a significant reduction in the S concentrations both in air and precipitation. In precipitation the concentrations are reduced by 30–45 percent in Southern Norway and 45–55 percent in Central and Northern Norway. Even larger reductions are observed in air concentrations with 50–65 percent reduction in Southern Norway and 65–88 percent reduction further north. For N components there are generally no significant trends in concentration levels nor in precipitation or air. The observed trends are comparable with reported trends in emission.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00476898
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  • 9
    Electronic Resource
    Electronic Resource
    Acidification in Norway — Status and trends (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 629-634 
    Details
    ISSN: 1573-2932
    Keywords: acidification ; monitoring ; calibrated catchments ; lakes ; rivers ; ground water
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Surface and ground water monitoring in Norway is designed to give a regional coverage with most of the stations in areas with acidification and some stations in unpolluted areas that give background values. Surface water (weekly sampling) and precipitation (daily measurement) are monitored at 6 calibrated catchments, 5 located in southern Norway and 1 in northernmost Norway close to the Russian border. Ground water (weekly sampling) is monitored in 4 reservoirs in Southern Norway. 73 lakes located all over Norway are surveyed each fall. Nineteen rivers in western and southern Norway are monitored by monthly sampling. All sites are considered sensitive to acidification and are chosen to minimise the effects of anthropogenic catchment based impacts. Results from the monitoring over the period 1980–1994 show that there is a reduction of sulphate of about 25–35% in surface waters which is related to a 30–45% reduction in sulphate concentration in precipitation. An improvement in water quality as measured as increase in ANC has only been apparent since 1990. Due to heavy seasalt episodes in the most coastal catchments like Birkenes and the rivers in western Norway, there has been no improvement of ANC since 1980. Deposition of nitrogen has not changed over the last 10 years, and there is no change in the levels of nitrate in the monitored surface waters.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00476899
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  • 10
    Electronic Resource
    Electronic Resource
    Perch mercury content is related to acidity and color of 26 Russian lakes (1995)
    Springer
    Water, air & soil pollution 85 (1995), S. 823-828 
    Details
    ISSN: 1573-2932
    Keywords: fish ; mercury ; lake chemistry ; biomagnification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract We determined mercury in fish (perch Perca fluviatilis) from 26 Russian lakes in three regions over four years. The lakes ranged in size from 2 to 395,000 ha, in pH from 4.5 to 10.0, and in color from 3 to 190 hazen. Sixteen lakes were drainage lakes, with permanent outlets, and 10 were seepage lakes, with no permanent inlets or outlets. The lakes were generally located in forested regions with little or no human habitation in the watershed. The three regions were geologically distinct: Precambrian Shield granitic bedrock covered with thin soil; Triassic bedrock covered with thick glacial tills; and Triassic bedrock covered with thin sediments. At each lake water samples were collected and analyzed for pH, add neutralizing capacity (ANC), major cations, and anions. Dissolved mercury species were estimated with a thermodynamic equilibrium model (MINTEQA2). Mercury content of dorsal muscle varied from 0.04 to 1.0 μg/g wet weight, and was linearly related to calculated HgCH3Cl (r20.68, p〈0.001). Lake HgCH3Cl, in turn, was related to lake pH (r2=0.86, p〈0.001). Stepwise multiple regression selected lake HgCH3Cl and color as the factors most highly related to fish mercury content, with the model accounting for 75% of the variation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00476931
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