Dissolution behavior of radiocesium-bearing microparticles released from the Fukushima Nuclear Plant

Okumura, Taiga*; Kogure, Toshihiro*; Yamaguchi, Noriko*; Dohi, Terumi ; Fujiwara, Kenso ; Iijima, Kazuki

Radiocesium-bearing microparticles (CsMPs) released from the Fukushima Nuclear Power Plant were revealed to be dissolved much more rapidly in seawater than pure water. In the case of hydrochloric acid, the radioactivity of CsMPs considerably decreased at the beginning, but ceased to change with time. Secondary minerals were precipitated in the CsMPs dissolved in seawater, whereas a passive layer was formed around the surface of CsMPs dissolved in hydrochloric acid.

Language	:	Japanese
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Meeting title	:	第20回環境放射能研究会
Held date	:	2019/03
Location (city)	:	つくば
Location (country)	:	日本
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Keywords	:	福島第一原子力発電所事故; Fukushima Daiichi Nuclear Power Station Accident
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Article of JAEA R&D Review	:
Cooperating Institute	:	東京大学

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Registration No. : BB20181858
JAEA Abstracts No. :
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