Plutonium Isotope Ratios in the Yenisey and Ob Estuaries
Over the past 50 years, nuclear weapons' tests and releases from the nuclear industry have introduced anthropogenic plutonium into the environment. In the Arctic environment, the main source of plutonium is from the atmospheric weapons testing, but previous studies of plutonium in the Kara Sea...
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ftanucanberra:oai:digitalcollections.anu.edu.au:1885/75914 2023-05-15T14:57:08+02:00 Plutonium Isotope Ratios in the Yenisey and Ob Estuaries Skipperud, Lindis Oughton, D Fifield, L Keith Lind, O Tims, Stephen Brown, Judith Elizabeth Sickel, Morten 2015-12-13T22:33:12Z http://hdl.handle.net/1885/75914 unknown Pergamon-Elsevier Ltd 0969-8043 http://hdl.handle.net/1885/75914 Applied Radiation and Isotopes Keywords: Environmental impact Estuaries Nuclear industry Radioisotopes Atmospheric weapons testing Isotope ratio measurements Plutonium plutonium 239 plutonium 240 Arctic article concentration (parameters) estuary isotope analysis pollution priority Accelerator mass spectrometry Isotope ratios Source identification Journal article 2015 ftanucanberra 2015-12-28T23:36:38Z Over the past 50 years, nuclear weapons' tests and releases from the nuclear industry have introduced anthropogenic plutonium into the environment. In the Arctic environment, the main source of plutonium is from the atmospheric weapons testing, but previous studies of plutonium in the Kara Sea have shown that, at certain sites, other releases can give rise to enhanced local concentrations. The present paper presents results from determination of plutonium concentrations and isotope ratios in the sediment samples collected during various expeditions to the Kara Sea, the Ob and Yenisey estuaries and their river systems. The data indicated a clear influence from a low240Pu:239Pu source in surface sediments collected from the Yenisey estuary, whereas plutonium in Ob estuary sediments is dominated by global fallout. The results also show an increase in plutonium concentration (from 0.003 to 11Bq/kg) and a decrease in240Pu:239Pu isotope ratio (from 0.16 to 0.05) going upstream from the Yenisey estuary towards the nuclear installation at Krashnoyarsk. Article in Journal/Newspaper Arctic Kara Sea Australian National University: ANU Digital Collections Arctic Kara Sea Yenisey ENVELOPE(82.680,82.680,71.828,71.828) |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: Environmental impact Estuaries Nuclear industry Radioisotopes Atmospheric weapons testing Isotope ratio measurements Plutonium plutonium 239 plutonium 240 Arctic article concentration (parameters) estuary isotope analysis pollution priority Accelerator mass spectrometry Isotope ratios Source identification |
spellingShingle |
Keywords: Environmental impact Estuaries Nuclear industry Radioisotopes Atmospheric weapons testing Isotope ratio measurements Plutonium plutonium 239 plutonium 240 Arctic article concentration (parameters) estuary isotope analysis pollution priority Accelerator mass spectrometry Isotope ratios Source identification Skipperud, Lindis Oughton, D Fifield, L Keith Lind, O Tims, Stephen Brown, Judith Elizabeth Sickel, Morten Plutonium Isotope Ratios in the Yenisey and Ob Estuaries |
topic_facet |
Keywords: Environmental impact Estuaries Nuclear industry Radioisotopes Atmospheric weapons testing Isotope ratio measurements Plutonium plutonium 239 plutonium 240 Arctic article concentration (parameters) estuary isotope analysis pollution priority Accelerator mass spectrometry Isotope ratios Source identification |
description |
Over the past 50 years, nuclear weapons' tests and releases from the nuclear industry have introduced anthropogenic plutonium into the environment. In the Arctic environment, the main source of plutonium is from the atmospheric weapons testing, but previous studies of plutonium in the Kara Sea have shown that, at certain sites, other releases can give rise to enhanced local concentrations. The present paper presents results from determination of plutonium concentrations and isotope ratios in the sediment samples collected during various expeditions to the Kara Sea, the Ob and Yenisey estuaries and their river systems. The data indicated a clear influence from a low240Pu:239Pu source in surface sediments collected from the Yenisey estuary, whereas plutonium in Ob estuary sediments is dominated by global fallout. The results also show an increase in plutonium concentration (from 0.003 to 11Bq/kg) and a decrease in240Pu:239Pu isotope ratio (from 0.16 to 0.05) going upstream from the Yenisey estuary towards the nuclear installation at Krashnoyarsk. |
format |
Article in Journal/Newspaper |
author |
Skipperud, Lindis Oughton, D Fifield, L Keith Lind, O Tims, Stephen Brown, Judith Elizabeth Sickel, Morten |
author_facet |
Skipperud, Lindis Oughton, D Fifield, L Keith Lind, O Tims, Stephen Brown, Judith Elizabeth Sickel, Morten |
author_sort |
Skipperud, Lindis |
title |
Plutonium Isotope Ratios in the Yenisey and Ob Estuaries |
title_short |
Plutonium Isotope Ratios in the Yenisey and Ob Estuaries |
title_full |
Plutonium Isotope Ratios in the Yenisey and Ob Estuaries |
title_fullStr |
Plutonium Isotope Ratios in the Yenisey and Ob Estuaries |
title_full_unstemmed |
Plutonium Isotope Ratios in the Yenisey and Ob Estuaries |
title_sort |
plutonium isotope ratios in the yenisey and ob estuaries |
publisher |
Pergamon-Elsevier Ltd |
publishDate |
2015 |
url |
http://hdl.handle.net/1885/75914 |
long_lat |
ENVELOPE(82.680,82.680,71.828,71.828) |
geographic |
Arctic Kara Sea Yenisey |
geographic_facet |
Arctic Kara Sea Yenisey |
genre |
Arctic Kara Sea |
genre_facet |
Arctic Kara Sea |
op_source |
Applied Radiation and Isotopes |
op_relation |
0969-8043 http://hdl.handle.net/1885/75914 |
_version_ |
1766329223177306112 |