title: Collaboration of local government and experts responding to increase in environmental radiation level due to the nuclear disaster: focusing on their activities and latest radiological discussion.
abstract: Activities were introduced in Kashiwa city in the Tokyo metropolitan area to correspond to the elevated environmental radiation level after the disaster of the Fukushima Daiichi nuclear power plant. These were based on a strong cooperation between local governments and experts. Ambient dose rate and radioactivity of foodstuff produced inside of the city have been monitored. Representative ambient dose rates around living environments have almost already become their original levels of the pre-accident because of the decontamination activity, natural washout and effective half-lives of radioactivity. The internal annual dose due to radioactive cesium under the policy of 'Local Production for Local Consumption' is estimated as extremely low comparing the variation range due to natural radioactivity. Systematic survey around a retention basin has been started. All of these latest monitoring data would be one of the core information for the policy making as well as a cost-benefit discussion and risk communication.
authors.affiliation: The University of Tokyo, Tokyo, Japan iimoto.takeshi@mail.u-tokyo.ac.jp.
authors.forename: T
authors.initials: T
authors.lastname: Iimoto
authors.affiliation: The University of Tokyo, Tokyo, Japan.
authors.forename: J
authors.initials: J
authors.lastname: Nunokawa
authors.affiliation: National Cancer Center, Kashiwa, Chiba, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Fujii
authors.affiliation: Tokyo University of Science, Chiba, Japan.
authors.forename: R
authors.initials: R
authors.lastname: Takashima
authors.affiliation: Japan Atomic Energy Agency, Ibaraki, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Hashimoto
authors.affiliation: Advanced Fusion Technology Co., Ltd, Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Fukuhara
authors.affiliation: Advanced Fusion Technology Co., Ltd, Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Yajima
authors.affiliation: Kashiwa City Office, Chiba, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Matsuzawa
authors.affiliation: Kashiwa City Office, Chiba, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kurosawa
authors.affiliation: Kashiwa City Office, Chiba, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Yanagawa
authors.affiliation: Kashiwa City Office, Chiba, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Someya
mesh_terms: D003299:Cooperative Behavior; D003666:Decontamination / Q000379:methods; D005104:Expert Testimony / Q000379:methods; D005507:Food Contamination, Radioactive / Q000032:analysis* / Q000517:prevention & control; D062406:Fukushima Nuclear Accident; D007373:Interinstitutional Relations; D009111:Local Government; D011835:Radiation Protection / Q000379:methods*; D011847:Radioactive Fallout / Q000032:analysis* / Q000517:prevention & control; D017751:Safety Management / Q000458:organization & administration
chemical_list: D011847:Radioactive Fallout