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Radiocesium concentrations in wild mushrooms collected in Kawauchi Village after the accident at the Fukushima Daiichi Nuclear Power Plant


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Title: Radiocesium concentrations in wild mushrooms collected in Kawauchi Village after the accident at the Fukushima Daiichi Nuclear Power Plant
Authors: Nakashima, Kanami / Orita, Makiko / Fukuda, Naoko / Taira, Yasuyuki / Hayashida, Naomi / Matsuda, Naoki / Takamura, Noboru
Issue Date: 24-Nov-2015
Publisher: PeerJ
Citation: PeerJ, 3, e1427; 2015
Abstract: It is well known from the experience after the 1986 accident at the Chernobyl Nuclear Power Plant that radiocesium tends to concentrate in wild mushrooms. In this study, we collected wild mushrooms from the Kawauchi Village of Fukushima Prefecture, located within 30 km of the Fukushima Daiichi Nuclear Power Plant, and evaluated their radiocesium concentrations to estimate the risk of internal radiation exposure in local residents.We found that radioactive cesium exceeding 100 Bq/kg was detected in 125 of 154 mushrooms (81.2%).We calculated committed effective doses based on 6,278 g per year (age > 20 years, 17.2 g/day), the average intake of Japanese citizens, ranging from doses of 0.11-1.60 mSv, respectively. Although committed effective doses are limited even if residents eat contaminated foods several times, we believe that comprehensive risk-communication based on the results of the radiocesium measurements of food, water, and soil is necessary for the recovery of Fukushima after this nuclear disaster.
Keywords: Chernobyl / Fukushima / Mushroom / Radiocesium / Radionuclides
URI: http://hdl.handle.net/10069/36139
DOI: 10.7717/peerj.1427
Rights: © 2015 Nakashima et al. Distributed under Creative Commons CC-BY 4.0
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/36139

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