福岛第一核电站核事故后，放射性核素经大气运移到达日本福冈。
Atmospheric radionuclides transported to Fukuoka, Japan remote from the Fukushima Dai-ichi nuclear power complex following the nuclear accident.
机构信息
Radioisotope Center, Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
出版信息
J Environ Radioact. 2012 Sep;111:28-32. doi: 10.1016/j.jenvrad.2011.09.001. Epub 2011 Sep 29.
Radionuclides were detected from the Fukushima nuclear accident at Fukuoka, Japan, 1000 km west of the Fukushima Dai-ichi nuclear power complex. Iodine-131 was first detected 3 d after the accident, indicating that it was probably transported dispersively because of local meteorological conditions, and not global air circulation. The maximum concentrations, 5.07 mBq m(-3) for (131)I, 4.04 mBq m(-3) for (134)Cs, and 4.12 mBq m(-3) for (137)Cs, were recorded in particles collected on April 6, 2011. However, these concentration levels decreased below the detection limit by April 26, 2011. Gaseous (131)I accounted for 30%-67% of the total (131)I content. The increase in dose by inhalation was negligible at Fukuoka.
福岛核事故产生的放射性核素在距离福岛第一核电站 1000 公里的日本福冈被检测到。事故发生 3 天后首次检测到碘-131，表明其可能是由于当地气象条件而不是全球空气环流而分散传输。2011 年 4 月 6 日采集到的颗粒物中，碘-131（131）的最大浓度为 5.07 mBq m(-3)，铯-134（134）的最大浓度为 4.04 mBq m(-3)，铯-137（137）的最大浓度为 4.12 mBq m(-3)。然而，这些浓度水平在 2011 年 4 月 26 日之前已降至检测限以下。气体（131）I 占总（131）I 含量的 30%-67%。在福冈，吸入引起的剂量增加可忽略不计。
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