Concentration of strontium-90 at selected hot spots in Japan.

This study is dedicated to the environmental monitoring of radionuclides released in the course of the Fukushima nuclear accident. The activity concentrations of β(-)-emitting (90)Sr and β(-)/γ-emitting (134)Cs and (137)Cs from several hot spots in Japan were determined in soil and vegetation sample...

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Autores principales:	Georg Steinhauser, Viktoria Schauer, Katsumi Shozugawa
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b0687caf699d41c8a35a08f3ce654e4f
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spelling	oai:doaj.org-article:b0687caf699d41c8a35a08f3ce654e4f2021-11-18T07:54:26ZConcentration of strontium-90 at selected hot spots in Japan.1932-620310.1371/journal.pone.0057760https://doaj.org/article/b0687caf699d41c8a35a08f3ce654e4f2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23505440/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203This study is dedicated to the environmental monitoring of radionuclides released in the course of the Fukushima nuclear accident. The activity concentrations of β(-)-emitting (90)Sr and β(-)/γ-emitting (134)Cs and (137)Cs from several hot spots in Japan were determined in soil and vegetation samples. The (90)Sr contamination levels of the samples were relatively low and did not exceed the Bq⋅g(-1) range. They were up four orders of magnitude lower than the respective (137)Cs levels. This study, therefore, experimentally confirms previous predictions indicating a low release of (90)Sr from the Fukushima reactors, due to its low volatility. The radiocesium contamination could be clearly attributed to the Fukushima nuclear accident via its activity ratio fingerprint ((134)Cs/(137)Cs). Although the correlation between (90)Sr and (137)Cs is relatively weak, the data set suggests an intrinsic coexistence of both radionuclides in the contaminations caused by the Fukushima nuclear accident. This observation is of great importance not only for remediation campaigns but also for the current food monitoring campaigns, which currently rely on the assumption that the activity concentrations of β(-)-emitting (90)Sr (which is relatively laborious to determine) is not higher than 10% of the level of γ-emitting (137)Cs (which can be measured quickly). This assumption could be confirmed for the samples investigated herein.Georg SteinhauserViktoria SchauerKatsumi ShozugawaPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 3, p e57760 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Georg Steinhauser Viktoria Schauer Katsumi Shozugawa Concentration of strontium-90 at selected hot spots in Japan.
description	This study is dedicated to the environmental monitoring of radionuclides released in the course of the Fukushima nuclear accident. The activity concentrations of β(-)-emitting (90)Sr and β(-)/γ-emitting (134)Cs and (137)Cs from several hot spots in Japan were determined in soil and vegetation samples. The (90)Sr contamination levels of the samples were relatively low and did not exceed the Bq⋅g(-1) range. They were up four orders of magnitude lower than the respective (137)Cs levels. This study, therefore, experimentally confirms previous predictions indicating a low release of (90)Sr from the Fukushima reactors, due to its low volatility. The radiocesium contamination could be clearly attributed to the Fukushima nuclear accident via its activity ratio fingerprint ((134)Cs/(137)Cs). Although the correlation between (90)Sr and (137)Cs is relatively weak, the data set suggests an intrinsic coexistence of both radionuclides in the contaminations caused by the Fukushima nuclear accident. This observation is of great importance not only for remediation campaigns but also for the current food monitoring campaigns, which currently rely on the assumption that the activity concentrations of β(-)-emitting (90)Sr (which is relatively laborious to determine) is not higher than 10% of the level of γ-emitting (137)Cs (which can be measured quickly). This assumption could be confirmed for the samples investigated herein.
format	article
author	Georg Steinhauser Viktoria Schauer Katsumi Shozugawa
author_facet	Georg Steinhauser Viktoria Schauer Katsumi Shozugawa
author_sort	Georg Steinhauser
title	Concentration of strontium-90 at selected hot spots in Japan.
title_short	Concentration of strontium-90 at selected hot spots in Japan.
title_full	Concentration of strontium-90 at selected hot spots in Japan.
title_fullStr	Concentration of strontium-90 at selected hot spots in Japan.
title_full_unstemmed	Concentration of strontium-90 at selected hot spots in Japan.
title_sort	concentration of strontium-90 at selected hot spots in japan.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/b0687caf699d41c8a35a08f3ce654e4f
work_keys_str_mv	AT georgsteinhauser concentrationofstrontium90atselectedhotspotsinjapan AT viktoriaschauer concentrationofstrontium90atselectedhotspotsinjapan AT katsumishozugawa concentrationofstrontium90atselectedhotspotsinjapan
_version_	1718422793473753088

Concentration of strontium-90 at selected hot spots in Japan.

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