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The median dose rates in the “Decontaminated area” in the difficult-to-return zone decreased rapidly from 1.0 μSv/h to 0.32 μSv/h; however, the median dose rates in the “Non-decontaminated area” and “Radioactive waste storage area” fluctuated between 1.1?1.4 μSv/h and 0.46?0.61 μSv/h, respectively. The detected rate of the cesium-137 (137Cs) (137Cs-detected points per all measuring points) in the “Decontaminated area” also decreased rapidly from 64% to 6.7%,accompany with decreasing in ambient dose rates. On the other hand, the detection of 137Cs in the “Radioactive waste storage area”and “Non-decontaminated area” decreased from 53% to 17% and 93% to 88%, respectively. We confirmed that the dose rates in the Decontaminated area dramatically decreased due to decontamination work aiming to help residents return home. 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Environmental Remediation of the difficult-to-return zone in Tomioka Town, Fukushima Prefecture
http://hdl.handle.net/10069/40131
http://hdl.handle.net/10069/4013119209615-31c0-4807-9651-e82515e01707
名前 / ファイル | ライセンス | アクション |
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SciRep10_10165.pdf (1.7 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-07-09 | |||||
タイトル | ||||||
タイトル | Environmental Remediation of the difficult-to-return zone in Tomioka Town, Fukushima Prefecture | |||||
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 | |||||
著者 |
Cui, Limeng
× Cui, Limeng× Taira, Yasuyuki× Matsuo, Masahiko× Orita, Makiko× Yamada, Yumiko× Takamura, Noboru |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Temporal variations in ambient dose rates in a restricted area designated as “difficult-to-return” for residents of Tomioka Town, Fukushima Prefecture were evaluated in a car-borne survey during 2018?2019. The median dose rates in the “Decontaminated area” in the difficult-to-return zone decreased rapidly from 1.0 μSv/h to 0.32 μSv/h; however, the median dose rates in the “Non-decontaminated area” and “Radioactive waste storage area” fluctuated between 1.1?1.4 μSv/h and 0.46?0.61 μSv/h, respectively. The detected rate of the cesium-137 (137Cs) (137Cs-detected points per all measuring points) in the “Decontaminated area” also decreased rapidly from 64% to 6.7%,accompany with decreasing in ambient dose rates. On the other hand, the detection of 137Cs in the “Radioactive waste storage area”and “Non-decontaminated area” decreased from 53% to 17% and 93% to 88%, respectively. We confirmed that the dose rates in the Decontaminated area dramatically decreased due to decontamination work aiming to help residents return home. Moreover, the estimated external exposure dose of workers during the present survey was 0.66 mSv/y in the Decontaminated area and 0.55 mSv/y in the Radioactive waste storage area, respectively. This case of Tomioka Town within the “difficult-to-return zone” may be the first reconstruction model for evaluating environmental contamination and radiation exposure dose rates due to artificial radionuclides derived from the nuclear disaster. | |||||
書誌情報 |
Scientific Reports 巻 10, 号 1, p. 10165, 発行日 2020-06-23 |
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出版者 | ||||||
出版者 | Springer Nature | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 20452322 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1038/s41598-020-66726-y | |||||
権利 | ||||||
権利情報 | c 2020, The Author(s). Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license,and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Scientific Reports, 10(1), art.no.10165; 2020 |