Imamura Masataka, Nabeshi Hiromi, Tsutsumi Tomoaki, Uekusa Yoshinori, Matsuda Rieko, Maeda Tomomi, Soga Keisuke, Teshima Reiko, Hachisuka Akiko, Akiyama Hiroshi
National Institute of Health Sciences.
Shokuhin Eiseigaku Zasshi. 2018;59(5):239-247. doi: 10.3358/shokueishi.59.239.
Between fiscal years 2014 and 2016, we surveyed the concentration of radioactive cesium in commercial foods produced in areas where there is a risk of radiation contamination due to the Fukushima Daiichi nuclear disaster. The number of samples with a concentration of radioactive cesium that exceeded the regulatory limit （100 Bq/kg for general foods） was 9 out of 1,516 （0.6％） in fiscal 2014, 12 out of 900 （1.3％） in fiscal 2015, and 10 out of 654 （1.5％） in fiscal 2016. Even though some samples were expected to be contaminated with radioactive cesium, because wild mushrooms and edible wild plants were intentionally included in this survey, the percentage of samples that exceeded the regulatory limit was only around 1％. The surveillance results confirmed that the pre-shipment food monitoring conducted by local governments was properly and efficiently performed, although continuous monitoring of the concentration of radioactive cesium in cultivated and wild mushrooms, edible wild plants, and wild animal meats is still required.
在2014财年至2016财年期间，我们对福岛第一核电站事故导致存在辐射污染风险地区生产的商业食品中的放射性铯浓度进行了调查。放射性铯浓度超过监管限值（一般食品为100贝克勒尔/千克）的样本数量在2014财年为1516个样本中的9个（0.6％），2015财年为900个样本中的12个（1.3％），2016财年为654个样本中的10个（1.5％）。尽管预计一些样本会受到放射性铯污染，但由于本次调查特意纳入了野生蘑菇和可食用野生植物，超过监管限值的样本百分比仅约为1％。监测结果证实，地方政府进行的装运前食品监测工作开展得当且高效，不过仍需持续监测栽培蘑菇、野生蘑菇、可食用野生植物及野生动物肉类中的放射性铯浓度。
