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A GIS-based evaluation of the effect of decontamination on effective doses due to long-term external exposures in Fukushima |
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| Authors: | Tetsuo Yasutaka Yumi Iwasaki Shizuka Hashimoto Wataru Naito Kyoko Ono Atsuo Kishimoto Kikuo Yoshida Michio Murakami Isao Kawaguchi Toshihiro Oka Junko Nakanishi |
| Institution: | 1. National Institute of Advanced Industrial Science and Technology, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8567, Japan;2. Graduate School of Agriculture, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan;3. Graduate School of Global Environmental Studies, Kyoto University, Yoshidahonmachi, Sakyo-ku, Kyoto 606-8501, Japan;4. “Wisdom of Water” (Suntory), Corporate Sponsored Research Program, Organization for Interdisciplinary Research Projects, The University of Tokyo, 7-3-1, Hongou, Bunkyo-ku, Tokyo 113-8656, Japan;5. National Institute of Radiological Sciences, 4-9-1, Anagawa, Inage, Chiba 263-8555, Japan;6. Fukui Prefectural University, 4-1-1, Matsuoka-Kenjojima, Eiheiji-Town, Yoshida County, Fukui 910-1195, Japan |
| Abstract: | Despite the enormous cost of radiation decontamination, there has been almost no quantitative discussion on how much it would reduce the long-term external radiation exposure in the Evacuation Zone and Planned Evacuation Zone (restricted zone) in Fukushima. The aim of this study is to assess the effectiveness of decontamination and return options and to identify important parameters for estimating the long-term cumulated effective dose (CED) during 15, 30 and 70 year period using data on land-use, population and decontamination in the restricted zone (about 1100 km2) in Fukushima. |
| Keywords: | Radio-cesium contamination Occupancy factor External exposure conversion coefficient Fukushima-Daiichi nuclear Power Plant Evaluation zone |
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