title: Recirculation of FNPP1-derived radiocaesium observed in winter 2015/2016 in coastal regions of Japan.
abstract: We conducted enhanced surface water sampling at more than 80 stations in coastal regions on both the Japan Sea and Pacific Ocean sides of Japan in winter 2015/2016 to examine the recirculation behaviour of FNPP1-derived radiocaesium in the surface layer 5 years after the 2011 FNPP1 accident. We found that a small part of the FNPP1-derived radiocaesium had already recirculated in the surface layer and reached the Japanese coast.
authors.affiliation: Institute of Environmental Radioactivity, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan. Electronic address: r706@ipc.fukushima-u.ac.jp.
authors.forename: Michio
authors.initials: M
authors.lastname: Aoyama
authors.affiliation: Low Level Radioactivity Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Nomi, Ishikawa 923-1224, Japan. Electronic address: hamajima@se.kanazawa-u.ac.jp.
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Hamajima
authors.affiliation: Institute of Nature and Environmental Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa 920-1192, Japan. Electronic address: yinomata@se.kanazawa-u.ac.jp.
authors.forename: Yayoi
authors.initials: Y
authors.lastname: Inomata
authors.affiliation: Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Chiba 277-8564, Japan. Electronic address: eoka@aori.u-tokyo.ac.jp.
authors.forename: Eitarou
authors.initials: E
authors.lastname: Oka
mesh_terms: D002588:Cesium Radioisotopes / Q000032:analysis*; D062406:Fukushima Nuclear Accident; D006801:Humans; D007564:Japan; D010140:Pacific Ocean; D012621:Seasons; D012623:Seawater / Q000032:analysis*; D013997:Time Factors; D014875:Water Pollutants, Radioactive / Q000032:analysis*
chemical_list: D002588:Cesium Radioisotopes; D014875:Water Pollutants, Radioactive; C000614989:Cesium-137; C000614987:Cesium-134
keywords: Fukushima Dai-ichi Nuclear power plant accident; Global fallout; Radiocaesium; Recirculation