Total beta activity, 137 Cs and 90 Sr in surface air in northern Finland in 1963
Abstract Air filter samples collected at Sodankylä (67º22´ N, 26º39´ E) were analyzed to determine concentrations of 137 Cs and 90 Sr in surface air in northern Finland in 1963. Previously, activity concentrations of Pu isotopes have been determined from the same filters. Activity concentrations of...
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crdegruyter:10.1524/ract.2012.1947 2024-09-15T18:25:34+00:00 Total beta activity, 137 Cs and 90 Sr in surface air in northern Finland in 1963 Salminen-Paatero, Susanna Paatero, J. 2012 http://dx.doi.org/10.1524/ract.2012.1947 https://www.degruyter.com/document/doi/10.1524/ract.2012.1947/xml https://www.degruyter.com/document/doi/10.1524/ract.2012.1947/pdf en eng Walter de Gruyter GmbH Radiochimica Acta volume 100, issue 10, page 801-808 ISSN 2193-3405 journal-article 2012 crdegruyter https://doi.org/10.1524/ract.2012.1947 2024-07-22T04:10:52Z Abstract Air filter samples collected at Sodankylä (67º22´ N, 26º39´ E) were analyzed to determine concentrations of 137 Cs and 90 Sr in surface air in northern Finland in 1963. Previously, activity concentrations of Pu isotopes have been determined from the same filters. Activity concentrations of 137 Cs and 90 Sr in surface air were <50 μBq/m 3 –13800 ± 2700 μBq/m 3 and <10 μBq/m 3 –5340 ± 290 μBq/m 3 , respectively. Air concentrations of 137 Cs and 90 Sr varied seasonally with a maximum in spring due to the springtime enhanced transportation of air masses with radioactive aerosols from the stratosphere to the troposphere. Activity ratios 90 Sr/ 239+240 Pu and 90 Sr/ 137 Cs were 6.9 ± 0.8–75 ± 5 and 0.08 ± 0.03–1.46 ± 0.51, respectively. The median value for the 90 Sr/ 137 Cs ratio (0.508) indicates contamination from global nuclear test fallout. An air mass back trajectory analysis suggests that no direct transport of radioactivity from the Novaya Zemlya test site to northern Finland occurred in 1963. Article in Journal/Newspaper Northern Finland Novaya Zemlya Sodankylä De Gruyter Radiochimica Acta 100 10 801 808 |
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English |
description |
Abstract Air filter samples collected at Sodankylä (67º22´ N, 26º39´ E) were analyzed to determine concentrations of 137 Cs and 90 Sr in surface air in northern Finland in 1963. Previously, activity concentrations of Pu isotopes have been determined from the same filters. Activity concentrations of 137 Cs and 90 Sr in surface air were <50 μBq/m 3 –13800 ± 2700 μBq/m 3 and <10 μBq/m 3 –5340 ± 290 μBq/m 3 , respectively. Air concentrations of 137 Cs and 90 Sr varied seasonally with a maximum in spring due to the springtime enhanced transportation of air masses with radioactive aerosols from the stratosphere to the troposphere. Activity ratios 90 Sr/ 239+240 Pu and 90 Sr/ 137 Cs were 6.9 ± 0.8–75 ± 5 and 0.08 ± 0.03–1.46 ± 0.51, respectively. The median value for the 90 Sr/ 137 Cs ratio (0.508) indicates contamination from global nuclear test fallout. An air mass back trajectory analysis suggests that no direct transport of radioactivity from the Novaya Zemlya test site to northern Finland occurred in 1963. |
format |
Article in Journal/Newspaper |
author |
Salminen-Paatero, Susanna Paatero, J. |
spellingShingle |
Salminen-Paatero, Susanna Paatero, J. Total beta activity, 137 Cs and 90 Sr in surface air in northern Finland in 1963 |
author_facet |
Salminen-Paatero, Susanna Paatero, J. |
author_sort |
Salminen-Paatero, Susanna |
title |
Total beta activity, 137 Cs and 90 Sr in surface air in northern Finland in 1963 |
title_short |
Total beta activity, 137 Cs and 90 Sr in surface air in northern Finland in 1963 |
title_full |
Total beta activity, 137 Cs and 90 Sr in surface air in northern Finland in 1963 |
title_fullStr |
Total beta activity, 137 Cs and 90 Sr in surface air in northern Finland in 1963 |
title_full_unstemmed |
Total beta activity, 137 Cs and 90 Sr in surface air in northern Finland in 1963 |
title_sort |
total beta activity, 137 cs and 90 sr in surface air in northern finland in 1963 |
publisher |
Walter de Gruyter GmbH |
publishDate |
2012 |
url |
http://dx.doi.org/10.1524/ract.2012.1947 https://www.degruyter.com/document/doi/10.1524/ract.2012.1947/xml https://www.degruyter.com/document/doi/10.1524/ract.2012.1947/pdf |
genre |
Northern Finland Novaya Zemlya Sodankylä |
genre_facet |
Northern Finland Novaya Zemlya Sodankylä |
op_source |
Radiochimica Acta volume 100, issue 10, page 801-808 ISSN 2193-3405 |
op_doi |
https://doi.org/10.1524/ract.2012.1947 |
container_title |
Radiochimica Acta |
container_volume |
100 |
container_issue |
10 |
container_start_page |
801 |
op_container_end_page |
808 |
_version_ |
1810466073792741376 |