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  • 1
    Electronic Resource
    Electronic Resource
    Estimate of risk from environmental exposure to radon-222 and its decay products (1981)
    [s.l.] : Nature Publishing Group
    Nature 290 (1981), S. 98-100 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Consideration of the epidemiological evidence on radiogenic lung cancer in uranium miners and of the incidence of the disease generally leads to an upper estimate for the lifetime risk of 10−4 cases per working level month for members of the general ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/290098a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Historical changes in anthropogenic lead fallout in southern Ontario, Canada (1982)
    Springer
    Hydrobiologia 91-92 (1982), S. 131-137 
    Details
    ISSN: 1573-5117
    Keywords: anthropogenic lead ; undisturbed sediments ; historical records
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A quantitative historical record of anthropogenic lead deposition has been determined for the Haliburton region of southern Ontario from a) the relative change in lead concentration in undisturbed sediment cores, and b) the total anthropogenic lead deposition measured in the region. The first parameter was measured on two sediment cores from a meromictic lake. Total lead deposition was assumed to be the average of that measured for eight other lakes in the study area. The validity of this historical record was tested on sediment cores from nearby dimictic lakes. Predicted lead concentration profiles closely resembled observed profiles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00940102
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  • 3
    Electronic Resource
    Electronic Resource
    Lead-210 dating of sediments compared with accumulation rates estimated by natural markers and measured with sediment traps (1982)
    Springer
    Hydrobiologia 91-92 (1982), S. 579-586 
    Details
    ISSN: 1573-5117
    Keywords: lead-210 dating ; natural sediment marker ; sediment traps ; sediment accumulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Methods to provide accurate accumulation rates for lake models are discussed. Cores were taken in 1979 in two basins of Lake Lucerne, Switzerland, and accumulation rates were calculated by using Pb-210 dating and by a natural landslide marker of 1795 in one basin (Weggis). In the other basin (Horw Bay) the sediment accumulation rates based on the lead method were compared with yearly sedimentation rates measured by sediment traps in 1969/70. At the Weggis station, the core dating yielded sediment accumulation rates of about 400 g dry wt. m−2 y−1 with the lead method, averaged over a sediment depth of 4–20 cm; accumulation was about 700 g dry wt. m−2 y−1 with the marker method, averaged over 0–33 cm. In Horw Bay, the trap method yielded about 1300 g dry wt. M−2 y−1 compared with 400–1000 g dry wt. m−2 y−1 obtained with the lead method and related to various depth intervals. The characteristic sources of error of the three methods as well as several hypotheses for these discrepancies are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00940146
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  • 4
    Electronic Resource
    Electronic Resource
    Whole-lake lead burdens in sediments of lakes in southern Ontario, Canada (1982)
    Springer
    Hydrobiologia 91-92 (1982), S. 121-130 
    Details
    ISSN: 1573-5117
    Keywords: sediments ; lead
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The anthropogenic stable lead content of the sediments of eight softwater Precambrian lakes in southern Ontario was measured at 34–92 sites per lake. Whole-lake anthropogenic lead burdens varied between only 610 and 770 mg m−2. There was no relationship between lead burden and either water replenishment time of the lake (TW) or the ratio of watershed area to lake area (Ad/A0), which varied by factors of 4 and 12 respectively. These results can be explained if a) the lead deposition in this region is uniform, and b) the only significant input of lead to the lakes is via deposition from the atmosphere directly on the lakes' surfaces. Therefore spatial differences in anthropogenic lead within a lake represent the redistribution or focusing pattern of the sediments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02391927
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  • 5
    Electronic Resource
    Electronic Resource
    Historical changes in anthropogenic lead fallout in southern Ontario, Canada (1982)
    Springer
    Hydrobiologia 91-92 (1982), S. 131-137 
    Details
    ISSN: 1573-5117
    Keywords: anthropogenic lead ; undisturbed sediments ; historical records
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A quantitative historical record of anthropogenic lead deposition has been determined for the Haliburton region of southern Ontario from a) the relative change in lead concentration in undisturbed sediment cores, and b) the total anthropogenic lead deposition measured in the region. The first parameter was measured on two sediment cores from a meromictic lake. Total lead deposition was assumed to be the average of that measured for eight other lakes in the study area. The validity of this historical record was tested on sediment cores from nearby dimictic lakes. Predicted lead concentration profiles closely resembled observed profiles.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02391928
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  • 6
    Electronic Resource
    Electronic Resource
    Whole-lake lead burdens in sediments of lakes in southern Ontario, Canada (1982)
    Springer
    Hydrobiologia 91-92 (1982), S. 121-130 
    Details
    ISSN: 1573-5117
    Keywords: sediments ; lead
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The anthropogenic stable lead content of the sediments of eight softwater Precambrian lakes in southern Ontario was measured at 34–92 sites per lake. Whole-lake anthropogenic lead burdens varied between only 610 and 770 mg m−2. There was no relationship between lead burden and either water replenishment time of the lake (TW) or the ratio of watershed area to lake area (Ad/A0), which varied by factors of 4 and 12 respectively. These results can be explained if a) the lead deposition in this region is uniform, and b) the only significant input of lead to the lakes is via deposition from the atmosphere directly on the lakes' surfaces. Therefore spatial differences in anthropogenic lead within a lake represent the redistribution or focusing pattern of the sediments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00940101
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  • 7
    Electronic Resource
    Electronic Resource
    Lead-210 dating of sediments compared with accumulation rates estimated by natural markers and measured with sediment traps (1982)
    Springer
    Hydrobiologia 91-92 (1982), S. 579-586 
    Details
    ISSN: 1573-5117
    Keywords: lead-210 dating ; natural sediment marker ; sediment traps ; sediment accumulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Methods to provide accurate accumulation rates for lake models are discussed. Cores were taken in 1979 in two basins of Lake Lucerne, Switzerland, and accumulation rates were calculated by using Pb-210 dating and by a natural landslide marker of 1795 in one basin (Weggis). In the other basin (Horw Bay) the sediment accumulation rates based on the lead method were compared with yearly sedimentation rates measured by sediment traps in 1969/70. At the Weggis station, the core dating yielded sediment accumulation rates of about 400 g dry wt. m−2 y−1 with the lead method, averaged over a sediment depth of 4–20 cm; accumulation was about 700 g dry wt. m−2 y−1 with the marker method, averaged over 0–33 cm. In Horw Bay, the trap method yielded about 1300 g dry wt. M−2 y−1 compared with 400–1000 g dry wt. m−2 y−1 obtained with the lead method and related to various depth intervals. The characteristic sources of error of the three methods as well as several hypotheses for these discrepancies are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00000056
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  • 8
    Electronic Resource
    Electronic Resource
    Lead-210 dating of sediments compared with accumulation rates estimated by natural markers and measured with sediment traps (1982)
    Springer
    Hydrobiologia 91-92 (1982), S. 579-586 
    Details
    ISSN: 1573-5117
    Keywords: lead-210 dating ; natural sediment marker ; sediment traps ; sediment accumulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Methods to provide accurate accumulation rates for lake models are discussed. Cores were taken in 1979 in two basins of Lake Lucerne, Switzerland, and accumulation rates were calculated by using Pb-210 dating and by a natural landslide marker of 1795 in one basin (Weggis). In the other basin (Horw Bay) the sediment accumulation rates based on the lead method were compared with yearly sedimentation rates measured by sediment traps in 1969/70. At the Weggis station, the core dating yielded sediment accumulation rates of about 400 g dry wt. m−2 y−1 with the lead method, averaged over a sediment depth of 4–20 cm; accumulation was about 700 g dry wt. m−2 y−1 with the marker method, averaged over 0–33 cm. In Horw Bay, the trap method yielded about 1300 g dry wt. M−2 y−1 compared with 400–1000 g dry wt. m−2 y−1 obtained with the lead method and related to various depth intervals. The characteristic sources of error of the three methods as well as several hypotheses for these discrepancies are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02391972
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  • 9
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    Unknown
    Historical changes in anthropogenic lead fallout in southern Ontario, Canada (1982)
    Springer
    Details
    Publication Date: 1982-07-01
    Print ISSN: 0018-8158
    Electronic ISSN: 1573-5117
    Topics: Biology
    Published by Springer
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  • 10
    facet.materialart.
    Unknown
    Whole-lake lead burdens in sediments of lakes in southern Ontario, Canada (1982)
    Springer
    Details
    Publication Date: 1982-07-01
    Print ISSN: 0018-8158
    Electronic ISSN: 1573-5117
    Topics: Biology
    Published by Springer
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    PAPER CURRENT
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