2019 Annual Meeting

Presentation information

Oral presentation

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

[1H08-12] Environmental Safety Assessment 1

Wed. Mar 20, 2019 2:45 PM - 4:10 PM Room H (Common Education Bildg. 2 2F No.27)

Chair:Yukiko Furuhashi(TEPCO HD)

3:30 PM - 3:45 PM

[1H11] Temporal variation of atmospheric radioactive cesium and the variation trend

Analysis of NRA’s monitoring data

*tomohisa abe1, Kazuya Yoshimura1, Yukihisa Sanada1 (1. Japan Atomic Energy Agency)

Keywords:Fukushima nuclear plant accident, radioactive cesium, re-suspension factor

In this study, we analyzed the variation trend of cesium concentration in the atmosphere using a data set that the Nuclear Regulation Authority regular measured the atmospheric radioactivity after the Fukushima nuclear plant accident. In addition, we calculated re-suspension factor in Fukushima using the initial fallout map of cesium by the third airborne monitoring survey.