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Plutonium and americium in arctic waters, the North Sea and Scottish and Irish coastal zones

Hallstadius, L. ; Aarkrog, A. ; Dahlgaard, H. ; Holm, E. LU ; Boelskifte, S. ; Duniec, S. and Persson, B. LU orcid (1986) In Journal of Environmental Radioactivity 4(1). p.11-30
Abstract

Plutonium and americium have been measured in surface waters of the Greenland and Barents Seas and in the northern North Sea from 1980 through 1984. Measurements in water and biota, Fucus, Mytilus and Patella, were carried out in North-English and Scottish waters in 1982 and Fucus samples were collected from the Irish coast in 1983. Fallout is found to dominate as a source of 239+240Pu north of latitude 65°N, while for 238Pu a substantial fraction originates from European nuclear fuel reprocessing facilities. The 238Pu/239+240Pu isotope ratio provides clear evidence of the transport of effluent plutonium from the latter to Spitsbergen waters. Fallout plutonium in Arctic waters has a residence... (More)

Plutonium and americium have been measured in surface waters of the Greenland and Barents Seas and in the northern North Sea from 1980 through 1984. Measurements in water and biota, Fucus, Mytilus and Patella, were carried out in North-English and Scottish waters in 1982 and Fucus samples were collected from the Irish coast in 1983. Fallout is found to dominate as a source of 239+240Pu north of latitude 65°N, while for 238Pu a substantial fraction originates from European nuclear fuel reprocessing facilities. The 238Pu/239+240Pu isotope ratio provides clear evidence of the transport of effluent plutonium from the latter to Spitsbergen waters. Fallout plutonium in Arctic waters has a residence time of the order of several years, while for Pu from Sellafield we estimate mean residence times of 11-15 months in Scottish waters and, tentatively, 1·5-3 y during transport from the North Channel (north of the Irish Sea) to Spitsbergen. 241Am found in Arctic waters probably originates from the decay of fallout 241Pu and, like Pu, tentatively has a residence time of the order of several years. Americium from Sellafield has an estimated mean residence time of 4-6 months in Scottish waters.

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type
Contribution to journal
publication status
published
in
Journal of Environmental Radioactivity
volume
4
issue
1
pages
20 pages
publisher
Elsevier
external identifiers
  • scopus:0022871685
ISSN
0265-931X
DOI
10.1016/0265-931X(86)90018-4
language
English
LU publication?
yes
id
a73a6ffa-27bf-41a1-b004-98971cdf0e6d
date added to LUP
2020-05-07 21:18:20
date last changed
2021-02-21 05:47:38
@article{a73a6ffa-27bf-41a1-b004-98971cdf0e6d,
  abstract     = {{<p>Plutonium and americium have been measured in surface waters of the Greenland and Barents Seas and in the northern North Sea from 1980 through 1984. Measurements in water and biota, Fucus, Mytilus and Patella, were carried out in North-English and Scottish waters in 1982 and Fucus samples were collected from the Irish coast in 1983. Fallout is found to dominate as a source of <sup>239+240</sup>Pu north of latitude 65°N, while for <sup>238</sup>Pu a substantial fraction originates from European nuclear fuel reprocessing facilities. The <sup>238</sup>Pu/<sup>239+240</sup>Pu isotope ratio provides clear evidence of the transport of effluent plutonium from the latter to Spitsbergen waters. Fallout plutonium in Arctic waters has a residence time of the order of several years, while for Pu from Sellafield we estimate mean residence times of 11-15 months in Scottish waters and, tentatively, 1·5-3 y during transport from the North Channel (north of the Irish Sea) to Spitsbergen. <sup>241</sup>Am found in Arctic waters probably originates from the decay of fallout <sup>241</sup>Pu and, like Pu, tentatively has a residence time of the order of several years. Americium from Sellafield has an estimated mean residence time of 4-6 months in Scottish waters.</p>}},
  author       = {{Hallstadius, L. and Aarkrog, A. and Dahlgaard, H. and Holm, E. and Boelskifte, S. and Duniec, S. and Persson, B.}},
  issn         = {{0265-931X}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{1}},
  pages        = {{11--30}},
  publisher    = {{Elsevier}},
  series       = {{Journal of Environmental Radioactivity}},
  title        = {{Plutonium and americium in arctic waters, the North Sea and Scottish and Irish coastal zones}},
  url          = {{http://dx.doi.org/10.1016/0265-931X(86)90018-4}},
  doi          = {{10.1016/0265-931X(86)90018-4}},
  volume       = {{4}},
  year         = {{1986}},
}