Activities of Committee for National Radiation Dose in Japan Health Physics Society

Takahashi, Fumiaki  ; Inagaki, Masayo*

Concern for radiation dose arises in Japan after the TEPCO Fukushima Dai-ichi Nuclear Power Plant (NPP) accident. Estimation for radiation dose in a usual daily life is required to assess influences of the accident. Then, the Japan Health Physics Society established a committee to discuss national radiation dose and its distribution on July in 2015. The activities of the committee will be reported at Health Physics-seminar in which experts of radiological protection will participate. Up to now, discussions have been made on the scope and task of the committee by referring to "New edition - Radiation in living environment". The committee mainly focuses on natural radiation to which people is almost equally exposed. The newest radiation monitoring dose and dosimetry models are to be reviewed in the committee. In discussions of the committee, some members have mentioned necessities of effects of the Fukushima-Daiichi NPP accident on the recent monitoring data and daily life styles which may become an influential factor for dose assessment.