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In areas where the evacuation orders had been lifted, \nthe median air dose rates were 0.20 μSv/h indoors and 0.26 μSv/h outdoors, and the radiation exposure dose rate was 1.6 mSv/y. By contrast, in the \"difficult-to-return zone,\" the median air dose rate was 2.3 μSv/h (20 mSv/y) outdoors. Moreover, the dose-forming artificial radionuclides \n(radiocesium) in the surface soil were 0.018 μSv/h (0.17 mSv/y) in the evacuation order-lifted areas and 0.73 μSv/h (6.4 mSv/y)\n in the difficult-to-return zone. 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Evaluation of Environmental Contamination and Estimated Radiation Exposure Dose Rates among Residents Immediately after Returning Home to Tomioka Town, Fukushima Prefecture
http://hdl.handle.net/10069/39206
http://hdl.handle.net/10069/39206426c260b-85bf-4b3b-af51-0842b5d90223
名前 / ファイル | ライセンス | アクション |
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IJERPH16_1481.pdf (1.1 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-05-31 | |||||
タイトル | ||||||
タイトル | Evaluation of Environmental Contamination and Estimated Radiation Exposure Dose Rates among Residents Immediately after Returning Home to Tomioka Town, Fukushima Prefecture | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | air dose rate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | difficult-to-return zone | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | effective dose rate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | evacuation order-lifted areas | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | external exposure risk | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Fukushima Daiichi Nuclear Power Station accident | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | living space | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | radiocesium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | surface soil | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Tomioka town | |||||
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 |
Matsuo, Masahiko
× Matsuo, Masahiko× Taira, Yasuyuki× Orita, Makiko× Yamada, Yumiko× Ide, Juichi× Yamashita, Shunichi× Takamura, Noboru |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | On 1 April 2017, six years have passed since the Fukushima Daiichi Nuclear Power Station (FDNPS) accident, and the Japanese government declared that some residents who lived in Tomioka Town, Fukushima Prefecture could return to their homes.We evaluated environmental contamination and radiation exposure dose rates due to artificial radionuclides in the livelihood zone of residents (living space such as housing sites), including a restricted area located within a 10-km radius from the FDNPS, immediately after residents had returned home in Tomioka town. In areas where the evacuation orders had been lifted, the median air dose rates were 0.20 μSv/h indoors and 0.26 μSv/h outdoors, and the radiation exposure dose rate was 1.6 mSv/y. By contrast, in the "difficult-to-return zone," the median air dose rate was 2.3 μSv/h (20 mSv/y) outdoors. Moreover, the dose-forming artificial radionuclides (radiocesium) in the surface soil were 0.018 μSv/h (0.17 mSv/y) in the evacuation order-lifted areas and 0.73 μSv/h (6.4 mSv/y) in the difficult-to-return zone. These findings indicate that current concentrations of artificial radionuclides in soil samples have been decreasing in the evacuation order-lifted areas of Tomioka town; however, a significant external exposure risk still exists in the difficult-to-return zone.The case of Tomioka town is expected to be the first reconstruction model including the difficult-to-return zone. |
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書誌情報 |
International Journal of Environmental Research and Public Health 巻 16, 号 9, p. 1481, 発行日 2019-04-29 |
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出版者 | ||||||
出版者 | MDPI | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1660-4601 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.3390/ijerph16091481 | |||||
権利 | ||||||
権利情報 | c 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (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 | International journal of environmental research and public health, 16(9), art.no.1481; 2019 |