11-year-old 100 millisiever suspected of radiation exposure Fukushima Daiichi Nuclear accident １１歳１００ミリシーベルト被曝の疑い 福島第一事故で 2019年1月21日22時02分
https://www.asahi.com/articles/ASM1P6F21M1PULBJ012.html
11-year-old 100 millisiever suspected of radiation exposure Fukushima Daiichi Nuclear accident
2019 January 21 22 02
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[PR]
Immediately after the Tokyo Electric Power Fukushima Daiichi Nuclear Power Plant accident, it was reported that girls who were 11 years old were estimated to have an internal exposure (hibaku) of about 100 mSv in the throat in the throat at the National Institute of Radiological Sciences I heard it at the interview to NIED).
Exposure to the thyroid gland by 100 mSv is said to increase the risk of cancer. Until now, the country has said that "children who have been exposed to 100 mSv or more have not been confirmed." The Nuclear Emergency Medical Association announced that it did not announce it, "It was not calculated precisely what the information was provided from the site in a simplified manner."
According to NIRO, radiological technician of Fukushima prefecture official who was decontaminating measured body of girl who evacuated from Futaba Town at Koriyama city gymnasium around March 17, 2011. The thyroid gland measured with a simple measuring device was said to be between 50,000 and 70,000 cpm.
There was no record left, but this value was conveyed to the team of the University of Tokushima who came to cheer. The team estimated that if all the radioactive substances were taken into the thyroid gland, it estimated "there is a possibility of tens of kilobases," and reported it to NIRS. NIRS shares information among the staff and leave notes on exposure dose of about 100 mSv. In memorandum, it was not supposed to announce it. NIRS said it was difficult to estimate accurately with low reliability.
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１１歳１００ミリシーベルト被曝の疑い 福島第一事故で
[PR]
東京電力福島第一原発事故直後に、１１歳だった女児がのどにある甲状腺に１００ミリシーベルト程度の内部被曝（ひばく）が推計されると報告されていたことが、放射線医学総合研究所（放医研）への取材でわかった。
甲状腺に１００ミリシーベルト被曝すると、がんのリスクが増えるとされる。これまで国は「１００ミリシーベルト以上被曝した子どもは確認していない」としてきた。放医研は「現場から情報提供があったものを簡易的に算出し、精密に出したものではない」とし、公表してこなかったという。
放医研などによると、除染を行っていた福島県職員の放射線技師が２０１１年３月１７日ごろに郡山市の体育館で、双葉町から避難してきた女児の体を測定。簡易測定器を使い甲状腺周囲を測ると、５万～７万ｃｐｍと示されたという。
記録は残っていないが、この値が応援に来ていた徳島大のチームに伝えられた。チームは放射性物質が全て甲状腺に取り込まれたとすると「十数キロベクレルの可能性がある」と試算し、放医研に報告した。放医研は職員の間で情報を共有し、１００ミリシーベルト程度の被曝量が考えられるとメモに残していた。備忘録にあたり、公表を想定したものではなかった。放医研は、信頼性が低い値で正確な推定が難しかったとしている。
