Concentrations of Radiocesium in Local Foods Collected in Kawauchi Village after the Accident at the Fukushima Dai-ichi Nuclear Power Station.
Concentrations of Radiocesium in Local Foods Collected in Kawauchi Village after the Accident at the Fukushima Dai-ichi Nuclear Power Station.
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DOI：
10.1038/srep28470
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发表时间：
2016-06-23
影响因子：
4.6
通讯作者：
Takamura N
中科院分区：
文献类型：
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作者：
Orita M;Nakashima K;Hayashida N;Endo Y;Yamashita S;Takamura N
我们评估了在距离福岛第一核电站不到30公里的川内村收集的当地食品中放射性铯的当前浓度，以减少公众对2011年福岛事故后通过食用当地生产的食品进行内部辐射暴露的担忧。在4,080种蔬菜中，有5种（0.1%）超过放射性铯的规定限值（一般食品为100 Bq/kg），在1,986种食用野生植物和真菌中，有652种（32.8%）超过限值，在647种水果中，有8种（1.2%）超过限值。我们的研究证实，与公共剂量限值相比，这些食物摄入的内部辐射剂量是可以接受的低剂量，男性为24.4至42.7 μSv，女性为21.7至43.4 μSv，尽管辐射暴露的可能性仍然存在。应进行长期的全面跟踪，以澄清当地食品中放射性铯浓度的趋势以及在福岛地区居民中发现的承诺有效剂量。通过构建一个允许居民获取食品中放射性铯浓度信息的系统，可以在福岛事故后的恢复阶段开发专家和居民之间的风险沟通模式。
We evaluated the current concentrations of radiocesium in local foods collected in Kawauchi Village, which is located less than 30 km from Fukushima Daiichi Nuclear Power Station, to minimize public anxiety regarding internal radiation exposure through the consumption of locally produced foods after the 2011 Fukushima accident. The number of samples exceeding the regulatory radiocesium limit (100 Bq/kg for general foods) was five out of 4,080 vegetables (0.1%), 652 of 1,986 (32.8%) among edible wild plants and fungi, and eight of 647 (1.2%) in fruits. Our study confirmed that the internal radiation doses of ingesting these foods are acceptably low compared to the public dose limit, ranging from 24.4 to 42.7 μSv for males and from 21.7 to 43.4 μSv for females, although the potential for radiation exposure still exists. Long-term comprehensive follow-up should take place to clarify trends in radiocesium concentrations in local foods and the committed effective doses found in Fukushima-area residents. By constructing a system that allows residents to access information on radiocesium concentration in foods, a risk communication model between specialists and residents could be developed in the recovery phase after the Fukushima accident.