2018 Fall Meeting

Presentation information

Oral presentation

VII. Health Physics and Environmental Science » Health Physics and Environmental Science

[1K15-19] Environmental Radioactivity and Monitoring 3

Wed. Sep 5, 2018 4:40 PM - 6:00 PM Room K (B41 -B Building)

Chair:Jun Goto(Niigata Univ.)

5:10 PM - 5:25 PM

[1K17] Dissolution of radiocesium-bearing microparticles released by the Fukushima nuclear accident

*Taiga Okumura1, Noriko Yamaguchi2, Terumi Dohi3, Kazuki Iijima3, Toshihiro Kogure1 (1. UTokyo, 2. NARO, 3. JAEA)

Keywords:radiocesium-bearing microparticle, CsMP, dissolution, pure water, seawater, electron microscopy, Fukushima nuclear accident

To determine dissolution rates of radiocesium-bearing microparticles (CsMPs) released by the Fukushima nuclear accident, we conducted dissolution experiments of CsMPs by reaction with pure water and seawater at several temperatures. According to the experiments, CsMPs may be completely dissolved and extinguished in several decades and several years in pure water and seawater, respectively.

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