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Strontium-90 activity concentration in soil samples from the exclusion zone of the Fukushima daiichi nuclear power plant
https://repo.qst.go.jp/records/47551
https://repo.qst.go.jp/records/4755112640be5-497c-452b-b2af-6c9f0d17b6a8
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-09-29 | |||||
タイトル | ||||||
タイトル | Strontium-90 activity concentration in soil samples from the exclusion zone of the Fukushima daiichi nuclear power plant | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Sahoo, S.K.
× Sahoo, S.K.× Kavasi, N.× Sorimachi, A.× Arae, H.× Tokonami, S.× Mietelski, J.W.× Lokas, E.× Yoshida, S.× サフー サラタ クマール× Kavasi Norbert× 新江 秀樹× 吉田 聡 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The radioactive fission product 90Sr has a long biological half-life (˜18 y) in the human body. Due to its chemical similarity to calcium it accumulates in bones and irradiates the bone marrow, causing its high radio-toxicity. Assessing 90Sr is therefore extremely important in case of a nuclear disaster. In this work 16 soil samples were collected from the exclusion zone (<30 km) of the earthquake-damaged Fukushima Daiichi nuclear power plant, to measure 90Sr activity concentration using liquid scintillation counting. 137Cs activity concentration was also measured with gamma-spectroscopy in order to investigate correlation with 90Sr. The 90Sr activity concentrations ranged from 3.0 ± 0.3 to 23.3 ± 1.5 Bq kg−1 while the 137Cs from 0.7 ± 0.1 to 110.8 ± 0.3 kBq kg−1. The fact that radioactive contamination originated from the Fukushima nuclear accident was obvious due to the presence of 134Cs. However, 90Sr contamination was not confirmed in all samples although detectable amounts of 90Sr can be expected in Japanese soils, as a background, stemming from global fallout due to the atmospheric nuclear weapon tests. Correlation analysis between 90Sr and 137Cs activity concentrations provides a potentially powerful tool to discriminate background 90Sr level from its Fukushima contribution. | |||||
書誌情報 |
Scientific Reports 巻 23925, 号 6, p. 23925-1-23925-10, 発行日 2016-04 |
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出版者 | ||||||
出版者 | Nature Publishing Group | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2045-2322 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1038/srep23925 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.nature.com/srep/index.html | |||||
関連名称 | http://www.nature.com/srep/index.html |