著者
Naoko Morita Miwa Miura Toshiro Usa Takashi Kudo Naoki Matsuda
出版者
日本放射線安全管理学会
雑誌
Radiation Safety Management (ISSN:13471511)
巻号頁・発行日
vol.12, no.2, pp.48-55, 2013 (Released:2013-12-19)
参考文献数
20

The internal doses of 372 persons who were dispatched to the Fukushima prefecture at any time from April 2011 to March 2012 were examined using a whole body counter within 2 months after they left Fukushima. 131I was only detected in April while 134Cs and 137Cs were found up to November 2011. The maximum committed effective dose and thyroid equivalent dose were 22.4 μSv and 0.4 mSv, respectively, which were observed in April 2011 by the scenario of acute inhalation. The internal radioactivity was found in persons staying in almost all of the interior and the coastal regions regardless of the distance from the Fukushima-Daiichi nuclear power plant. Although there was no statistical significance, the detection rate of 134Cs and 137Cs appeared higher in subjects dispatched for relatively long-terms. Comparison of internal doses evaluated by the whole body counter and by prediction from environmental radioactivity indicates that the intake of radioactivity in March, April and possibly May 2011, would be mainly attributable to the inhalation of airborne radioactive particles, whereas in June and later months ingestion of contaminated food would be the major route of radioactive intake. These results suggest that the risk for internal exposure existed for approximately six months after the radiological accident in almost the entire area of Fukushima, however, adverse health consequences by the radiation dose due to internal exposure seem to be negligible. Furthermore, the present risk for internal exposure is quite low in the normal living situation.

言及状況

外部データベース (DOI)

Twitter (6 users, 7 posts, 3 favorites)

長崎大が(2011年4月から2012年3月までの間に)長崎県から福島県下に支援のため派遣された372人をWBC検査した結果を派遣時期別にまとめ、あわせて行動記録と大気中の放射性物質濃度から求めた内部被ばく量と比較した論文http://t.co/S8hnTAfBEY
https://t.co/KOQHdqy2lk 2011年4月~2012年3月までの間フクシマの緊急作業に入っていた372人の内部放射線量、らしい
@PKAnzug @loquat_priest  同じ研究者ですが… Internal radiation doses in 372 persons who were dispatched to Fukushima (略)→https://t.co/KOQHdqy2lk
最新論文 https://t.co/3w2ca9Zo5G

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