2018 Fall Meeting

Presentation information

Oral presentation

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

[1K08-14] Environmental Radioactivity and Monitoring 2

Wed. Sep 5, 2018 2:45 PM - 4:40 PM Room K (B41 -B Building)

Chair:Taiga Okumura(Univ. of Tokyo)

3:15 PM - 3:30 PM

[1K10] Investigation on distribution of radioactive substances in Fukushima

(10) Seven-year monitoring of the vertical distribution of radiocesium in forest soils after the FDNPP accident

*Junko Takahashi1, Daichi Hihara1, Kenji Tamura1, Yuichi Onda1 (1. Univ. of Tsukuba)

Keywords:Vertical distribution of radiocesium, forest soil, relaxation depth

We monitored the vertical distribution of 137Cs in three forest soils in Kawamata Town. The migration from litter to mineral soil was more rapid than Chernobyl studies. The relaxation depth of 137Cs concentration were constantly increasing in cedar forest sites with 0.08 cm y−1, however there was no temporal increase in the mixed forest site.