Uekusa Yoshinori, Nabeshi Hiromi, Nakamura Rika, Tsutsumi Tomoaki, Hachisuka Akiko, Matsuda Rieko, Teshima Reiko
National Institute of Health Sciences.
Shokuhin Eiseigaku Zasshi. 2015;56(2):49-56. doi: 10.3358/shokueishi.56.49.
We surveyed the concentration of radioactive cesium in foods purchased at markets in areas where possible contamination has been a concern after the Fukushima accident. In fiscal years 2012 and 2013, we surveyed 1,735 and 1,674 foods, respectively, using a NaI (Tl) scintillation spectrometer for the screening test and a γ-ray spectrometer with a germanium semiconductor detector for the final test. Only 3 and 4 samples (0.2% of our total samples) exceeded the regulatory limit (100 Bq/kg) for radioactive cesium in fiscal years 2012 and 2013, respectively. Our surveillance indicates that the pre-shipment monitoring of foods by local governments has been working effectively.
我们对福岛事故后可能受到污染地区市场上所售食品中的放射性铯浓度进行了调查。在2012财年和2013财年，我们分别对1735种和1674种食品进行了调查，筛选测试使用碘化钠（铊）闪烁光谱仪，最终测试使用配有锗半导体探测器的γ射线光谱仪。在2012财年和2013财年，分别只有3个和4个样本（占我们总样本的0.2%）超过了放射性铯的监管限值（100贝克勒尔/千克）。我们的监测表明，地方政府对食品装运前的监测工作成效显著。
