Confirmation of effect sustainability after decontamination and prediction of future air dose rate change

Nishiuchi, Masashi*; Suzuki, Satoshi*; Kawase, Keiichi ; Watanabe, Masanori; Yamashita, Takuya

By monitoring air dose rate etc. for public facilities where decontamination work was completed, we confirmed the status of maintaining decontamination effect, and predicted future air dose rate change by "The Restoration Support System for Environment (RESET)" and "prediction model of ambient dose equivalent rate" developed by JAEA. As a result, it became clear that the decontamination effect was maintained, and the future air dose rate was predicted to be reduced by about 30% after 10 years. This survey was conducted in response to concerns of municipalities. The research results were reported to the relevant municipalities and was used as the basic data residents correspondence etc. in the municipalities.