Evaluation of the anthropogenic radionuclide concentrations in sediments and fauna collected in the Beaufort Sea and northern Alaska
This study was performed to establish a quality controlled data set about the levels of radio nuclide activity in the environment and in selected biota in the U.S. Arctic. Sediment and biota samples were collected by the National Oceanic and Atmospheric Administration (NOAA), the National Biological...
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Los Alamos National Laboratory
1997
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ftunivnotexas:info:ark/67531/metadc692480 2023-05-15T14:58:12+02:00 Evaluation of the anthropogenic radionuclide concentrations in sediments and fauna collected in the Beaufort Sea and northern Alaska Efurd, D. W. Miller, G. G. Rokop, D. J. United States. Department of Energy. United States. National Oceanic and Atmospheric Administration. 1997-07-01 47 p. Text https://doi.org/10.2172/501541 https://digital.library.unt.edu/ark:/67531/metadc692480/ English eng Los Alamos National Laboratory other: DE97007298 rep-no: LA--13302-MS grantno: W-7405-ENG-36 doi:10.2172/501541 osti: 501541 https://digital.library.unt.edu/ark:/67531/metadc692480/ ark: ark:/67531/metadc692480 Other Information: PBD: Jul 1997 Beaufort Sea Mammals Americium 241 Lead 212 Lead 214 Potassium 40 Global Fallout Cesium 137 Man 56 Biology And Medicine Applied Studies Sediments Alaska Ingestion Plutonium 240 Radiation Doses Strontium 90 Radiochemical Analysis Food Chains Radioecological Concentration 54 Environmental Sciences Plutonium 238 Plutonium 239 Report 1997 ftunivnotexas https://doi.org/10.2172/501541 2020-05-23T22:08:10Z This study was performed to establish a quality controlled data set about the levels of radio nuclide activity in the environment and in selected biota in the U.S. Arctic. Sediment and biota samples were collected by the National Oceanic and Atmospheric Administration (NOAA), the National Biological Service, and the North Slope Borough`s Department of Wildlife Management to determine the impact of anthropogenic radionuclides in the Arctic. The results summarized in this report are derived from samples collected in northwest Alaska with emphasis on species harvested for subsistence in Barrow, Alaska. Samples were analyzed for the anthropogenic radionuclides {sup 90}Sr, {sup 137}Cs, {sup 238}Pu, {sup 239}Pu, {sup 240}Pu and {sup 241}Am. The naturally occurring radionuclides {sup 40}K, {sup 212}Pb and {sup 214}Pb were also measured. One goal of this study was to determine the amounts of anthropogenic radionuclides present in the Beaufort Sea. Sediment samples were isotopically fingerprinted to determine the sources of radio nuclide activities. Biota samples of subsistence and ecological value were analyzed to search for evidence of bio-accumulation of radionuclides and to determine the radiation exposures associated with subsistence living in northern Alaska. The anthropogenic radio nuclide content of sediments collected in the Beaufort Sea was predominantly the result of the deposition of global fallout. No other sources of anthropogenic radionuclides could be conclusively identified in the sediments. The anthropogenic radio nuclide concentrations in fish, birds and mammals were very low. Assuming that ingestion of food is an important pathway leading to human contact with radioactive contaminants and given the dietary patterns in coastal Arctic communities, it can be surmised that marine food chains are presently not significantly affected. Report Arctic Barrow Beaufort Sea north slope Alaska University of North Texas: UNT Digital Library Arctic |
institution |
Open Polar |
collection |
University of North Texas: UNT Digital Library |
op_collection_id |
ftunivnotexas |
language |
English |
topic |
Beaufort Sea Mammals Americium 241 Lead 212 Lead 214 Potassium 40 Global Fallout Cesium 137 Man 56 Biology And Medicine Applied Studies Sediments Alaska Ingestion Plutonium 240 Radiation Doses Strontium 90 Radiochemical Analysis Food Chains Radioecological Concentration 54 Environmental Sciences Plutonium 238 Plutonium 239 |
spellingShingle |
Beaufort Sea Mammals Americium 241 Lead 212 Lead 214 Potassium 40 Global Fallout Cesium 137 Man 56 Biology And Medicine Applied Studies Sediments Alaska Ingestion Plutonium 240 Radiation Doses Strontium 90 Radiochemical Analysis Food Chains Radioecological Concentration 54 Environmental Sciences Plutonium 238 Plutonium 239 Efurd, D. W. Miller, G. G. Rokop, D. J. Evaluation of the anthropogenic radionuclide concentrations in sediments and fauna collected in the Beaufort Sea and northern Alaska |
topic_facet |
Beaufort Sea Mammals Americium 241 Lead 212 Lead 214 Potassium 40 Global Fallout Cesium 137 Man 56 Biology And Medicine Applied Studies Sediments Alaska Ingestion Plutonium 240 Radiation Doses Strontium 90 Radiochemical Analysis Food Chains Radioecological Concentration 54 Environmental Sciences Plutonium 238 Plutonium 239 |
description |
This study was performed to establish a quality controlled data set about the levels of radio nuclide activity in the environment and in selected biota in the U.S. Arctic. Sediment and biota samples were collected by the National Oceanic and Atmospheric Administration (NOAA), the National Biological Service, and the North Slope Borough`s Department of Wildlife Management to determine the impact of anthropogenic radionuclides in the Arctic. The results summarized in this report are derived from samples collected in northwest Alaska with emphasis on species harvested for subsistence in Barrow, Alaska. Samples were analyzed for the anthropogenic radionuclides {sup 90}Sr, {sup 137}Cs, {sup 238}Pu, {sup 239}Pu, {sup 240}Pu and {sup 241}Am. The naturally occurring radionuclides {sup 40}K, {sup 212}Pb and {sup 214}Pb were also measured. One goal of this study was to determine the amounts of anthropogenic radionuclides present in the Beaufort Sea. Sediment samples were isotopically fingerprinted to determine the sources of radio nuclide activities. Biota samples of subsistence and ecological value were analyzed to search for evidence of bio-accumulation of radionuclides and to determine the radiation exposures associated with subsistence living in northern Alaska. The anthropogenic radio nuclide content of sediments collected in the Beaufort Sea was predominantly the result of the deposition of global fallout. No other sources of anthropogenic radionuclides could be conclusively identified in the sediments. The anthropogenic radio nuclide concentrations in fish, birds and mammals were very low. Assuming that ingestion of food is an important pathway leading to human contact with radioactive contaminants and given the dietary patterns in coastal Arctic communities, it can be surmised that marine food chains are presently not significantly affected. |
author2 |
United States. Department of Energy. United States. National Oceanic and Atmospheric Administration. |
format |
Report |
author |
Efurd, D. W. Miller, G. G. Rokop, D. J. |
author_facet |
Efurd, D. W. Miller, G. G. Rokop, D. J. |
author_sort |
Efurd, D. W. |
title |
Evaluation of the anthropogenic radionuclide concentrations in sediments and fauna collected in the Beaufort Sea and northern Alaska |
title_short |
Evaluation of the anthropogenic radionuclide concentrations in sediments and fauna collected in the Beaufort Sea and northern Alaska |
title_full |
Evaluation of the anthropogenic radionuclide concentrations in sediments and fauna collected in the Beaufort Sea and northern Alaska |
title_fullStr |
Evaluation of the anthropogenic radionuclide concentrations in sediments and fauna collected in the Beaufort Sea and northern Alaska |
title_full_unstemmed |
Evaluation of the anthropogenic radionuclide concentrations in sediments and fauna collected in the Beaufort Sea and northern Alaska |
title_sort |
evaluation of the anthropogenic radionuclide concentrations in sediments and fauna collected in the beaufort sea and northern alaska |
publisher |
Los Alamos National Laboratory |
publishDate |
1997 |
url |
https://doi.org/10.2172/501541 https://digital.library.unt.edu/ark:/67531/metadc692480/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Barrow Beaufort Sea north slope Alaska |
genre_facet |
Arctic Barrow Beaufort Sea north slope Alaska |
op_source |
Other Information: PBD: Jul 1997 |
op_relation |
other: DE97007298 rep-no: LA--13302-MS grantno: W-7405-ENG-36 doi:10.2172/501541 osti: 501541 https://digital.library.unt.edu/ark:/67531/metadc692480/ ark: ark:/67531/metadc692480 |
op_doi |
https://doi.org/10.2172/501541 |
_version_ |
1766330281117089792 |