Inoue K, Hosoda M, Sugino M, Simizu H, Akimoto A, Hori K, Ishikawa T, Sahoo S K, Tokonami S, Narita H, Fukushi M
Tokyo Metropolitan University, 7-2-10 Higashiogu, Arakawa-ku, Tokyo 116-8551, Japan.
Radiat Prot Dosimetry. 2012 Nov;152(1-3):234-7. doi: 10.1093/rpd/ncs228. Epub 2012 Aug 26.
Environmental radiation at Izu-Oshima Island was observed 6 months after the accident at the Fukushima Daiichi Nuclear Power Plant (F1-NPP). A car-borne survey of the dose rate in air was conducted over the entire island and the results were compared with measurements performed in 2005 (i.e. before the accident). The activity concentrations of (134)Cs and (137)Cs were also measured using a germanium detector. The dose rate in air was found to be 2.9 ± 1.2 times higher than that in 2005 and (134)Cs was detected on Izu-Oshima Island. These results are attributed to the accident at the F1-NPP.
在福岛第一核电站事故发生6个月后，对伊豆大岛的环境辐射进行了观测。在全岛范围内开展了车载空气剂量率调查，并将结果与2005年（即事故前）进行的测量结果进行了比较。还使用锗探测器测量了¹³⁴Cs和¹³⁷Cs的活度浓度。结果发现，空气中的剂量率比2005年高出2.9±1.2倍，并且在伊豆大岛上检测到了¹³⁴Cs。这些结果归因于福岛第一核电站事故。
