The radiological environment of Svalbard
This paper presents a detailed survey of the radiological environment of the Svalbard area carried out from 2000 to 2002, in both the marine and terrestrial environment. In the marine environment in 2001, 99Tc activity concentrations in seawater were 0.13 to 0.36 Bq/m3, 5 fold higher than those in 1...
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Norwegian Polar Institute
2004
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ftjpolarres:oai:journals.openacademia.net:article/2084 2024-09-15T18:31:21+00:00 The radiological environment of Svalbard Gwynn, Justin P. Dowdall, Mark Davids, Corine Selnæs, Øyvind G. Lind, Bjørn 2004-12-01 application/pdf https://polarresearch.net/index.php/polar/article/view/2084 https://doi.org/10.3402/polar.v23i2.6277 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2084/5335 https://polarresearch.net/index.php/polar/article/view/2084 doi:10.3402/polar.v23i2.6277 Polar Research; Vol. 23 No. 2 (2004); 167-180 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2004 ftjpolarres https://doi.org/10.3402/polar.v23i2.6277 2024-06-28T03:10:15Z This paper presents a detailed survey of the radiological environment of the Svalbard area carried out from 2000 to 2002, in both the marine and terrestrial environment. In the marine environment in 2001, 99Tc activity concentrations in seawater were 0.13 to 0.36 Bq/m3, 5 fold higher than those in 1994, refl ecting the increase in 99Tc discharges from Sellafi eld in the mid 1990s. Cs-137 activity concentrations in seawater were 2.23 to 2.43 Bq/m3, ca. 10 fold lower than those in the 1980s, refl ecting the reduction in discharge of this radionuclide. Pu-238, 239+240Pu and 241Am activity concentrations in seawater were < 0.3 to 0.7 mBq/m3, 5.6 to 8.9 mBq/m3 and 0.6 to 2.4 mBq/m3 respectively, with activity ratios suggesting global fallout to be the dominant source. Tc-99 activity concentrations in brown algae were up to 18 fold higher than those in the 1980s with highest concentrations in Fucus distichus (25.7 to 58.7 Bq/kg d.w.). In the terrestrial environment, typical 137Cs activity concentrations in soil were between < 0.5 and 63 Bq/kg d.w. whilst activity concentrations of the natural radionuclides 238U (17 to 72 Bq/kg d.w.), 226Ra (21 to 70 Bq/kg d.w.), 232Th (10 to 57 Bq/kg d.w.) and 40K (115 to 818 Bq/kg d.w.) were similar to global averages. In terrestrial vegetation, 137Cs activity concentrations varied from 29 to 292 Bq/kg d.w. in mosses, 30 to 140 Bq/kg d.w. in lichen and 19 to 109 Bq/kg d.w. in fl owering plants. Elevated activity concentrations of 137Cs, 238U, 226Ra, Pu isotopes and 241Am were found in some matrices associated with seabird colonies. Article in Journal/Newspaper Polar Research Svalbard Polar Research Polar Research 23 2 167 180 |
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This paper presents a detailed survey of the radiological environment of the Svalbard area carried out from 2000 to 2002, in both the marine and terrestrial environment. In the marine environment in 2001, 99Tc activity concentrations in seawater were 0.13 to 0.36 Bq/m3, 5 fold higher than those in 1994, refl ecting the increase in 99Tc discharges from Sellafi eld in the mid 1990s. Cs-137 activity concentrations in seawater were 2.23 to 2.43 Bq/m3, ca. 10 fold lower than those in the 1980s, refl ecting the reduction in discharge of this radionuclide. Pu-238, 239+240Pu and 241Am activity concentrations in seawater were < 0.3 to 0.7 mBq/m3, 5.6 to 8.9 mBq/m3 and 0.6 to 2.4 mBq/m3 respectively, with activity ratios suggesting global fallout to be the dominant source. Tc-99 activity concentrations in brown algae were up to 18 fold higher than those in the 1980s with highest concentrations in Fucus distichus (25.7 to 58.7 Bq/kg d.w.). In the terrestrial environment, typical 137Cs activity concentrations in soil were between < 0.5 and 63 Bq/kg d.w. whilst activity concentrations of the natural radionuclides 238U (17 to 72 Bq/kg d.w.), 226Ra (21 to 70 Bq/kg d.w.), 232Th (10 to 57 Bq/kg d.w.) and 40K (115 to 818 Bq/kg d.w.) were similar to global averages. In terrestrial vegetation, 137Cs activity concentrations varied from 29 to 292 Bq/kg d.w. in mosses, 30 to 140 Bq/kg d.w. in lichen and 19 to 109 Bq/kg d.w. in fl owering plants. Elevated activity concentrations of 137Cs, 238U, 226Ra, Pu isotopes and 241Am were found in some matrices associated with seabird colonies. |
format |
Article in Journal/Newspaper |
author |
Gwynn, Justin P. Dowdall, Mark Davids, Corine Selnæs, Øyvind G. Lind, Bjørn |
spellingShingle |
Gwynn, Justin P. Dowdall, Mark Davids, Corine Selnæs, Øyvind G. Lind, Bjørn The radiological environment of Svalbard |
author_facet |
Gwynn, Justin P. Dowdall, Mark Davids, Corine Selnæs, Øyvind G. Lind, Bjørn |
author_sort |
Gwynn, Justin P. |
title |
The radiological environment of Svalbard |
title_short |
The radiological environment of Svalbard |
title_full |
The radiological environment of Svalbard |
title_fullStr |
The radiological environment of Svalbard |
title_full_unstemmed |
The radiological environment of Svalbard |
title_sort |
radiological environment of svalbard |
publisher |
Norwegian Polar Institute |
publishDate |
2004 |
url |
https://polarresearch.net/index.php/polar/article/view/2084 https://doi.org/10.3402/polar.v23i2.6277 |
genre |
Polar Research Svalbard |
genre_facet |
Polar Research Svalbard |
op_source |
Polar Research; Vol. 23 No. 2 (2004); 167-180 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2084/5335 https://polarresearch.net/index.php/polar/article/view/2084 doi:10.3402/polar.v23i2.6277 |
op_doi |
https://doi.org/10.3402/polar.v23i2.6277 |
container_title |
Polar Research |
container_volume |
23 |
container_issue |
2 |
container_start_page |
167 |
op_container_end_page |
180 |
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1810472987906801664 |