著者
袁 軍 世良 耕一郎 高辻 俊宏
出版者
一般社団法人日本衛生学会
雑誌
日本衛生学雑誌 (ISSN:00215082)
巻号頁・発行日
vol.70, no.2, pp.149-160, 2015 (Released:2015-05-21)
参考文献数
16

Objective: To investigate human health effects of radiation exposure due to possible future nuclear accidents in distant places and other various findings of analysis of the radioactive materials contaminating the atmosphere of Nagasaki due to the Fukushima Daiichi Nuclear Power Plant accident. Methods: The concentrations of radioactive materials in aerosols in the atmosphere of Nagasaki were measured using a germanium semiconductor detector from March 2011 to March 2013. Internal exposure dose was calculated in accordance with ICRP Publ. 72. Air trajectories were analyzed using NOAA and METEX web-based systems. Results: 134Cs and 137Cs were repeatedly detected. The air trajectory analysis showed that 134Cs and 137Cs flew directly from the Fukushima Daiichi Nuclear Power Plant from March to April 2011. However, the direct air trajectories were rarely detected after this period even when 134Cs and 137Cs were detected after this period. The activity ratios (134Cs/137Cs) of almost all the samples converted to those in March 2011 were about unity. This strongly suggests that the 134Cs and 137Cs detected mainly originated from the Fukushima Daiichi Nuclear Power Plant accident in March 2011. Although the 134Cs and 137Cs concentrations per air volume were very low and the human health effects of internal exposure via inhalation is expected to be negligible, the specific activities (concentrations per aerosol mass) were relatively high. Conclusion: It was found that possible future nuclear accidents may cause severe radioactive contaminations, which may require radiation exposure control of farm goods to more than 1000 km from places of nuclear accidents.

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外部データベース (DOI)

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J-STAGE公開日 2015/05/21

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>福島第一原子力発電所事故と同程度以上の原子力事故が再度発生すれば,半径1,000 km以上の範囲に無視できない被害が及ぶ恐れがあると言える。 https://t.co/pRVtKYKZ9u
大規模原子力事故時の遠隔地における放射線被ばくへの対処 https://t.co/T4MlJUfs7S
大規模原子力事故時の遠隔地における放射線被ばくへの対処 ―長崎に飛来した福島第一原子力発電所の放射性物質からの推測― https://t.co/TqudN6O7r1 :これもまた何を言いたのかわけわかめの論文だ 今日は訳わかめが多い
大規模原子力事故時の遠隔地における放射線被ばくへの対処 ―長崎に飛来した福島第一原子力発電所の放射性物質からの推測― https://t.co/TorJRzBUIV http://t.co/yfDvEGvRNI

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