title: Radiocesium in the western subarctic area of the North Pacific Ocean, Bering Sea, and Arctic Ocean in 2013 and 2014.
abstract: We measured radiocesium (134Cs and137Cs) in seawater from the western subarctic area of the North Pacific Ocean, Bering Sea, and Arctic Ocean in 2013 and 2014. Fukushima-derived134Cs in surface seawater was observed in the western subarctic area and Bering Sea but not in the Arctic Ocean. Vertical profile of134Cs in the Canada Basin of the Arctic Ocean implies that Fukushima-derived134Cs intruded into the basin from the Bering Sea through subsurface (150m depth) in 2014.
authors.affiliation: Research and Development Center for Global Change, Japan Agency for Marine-Earth Science and Technology, 2-15 Natushima-cho, Yokosuka, Kanagawa 237-0061, Japan. Electronic address: kumamoto@jamstec.go.jp.
authors.forename: Yuichiro
authors.initials: Y
authors.lastname: Kumamoto
authors.affiliation: Institute of Environmental Radioactivity, Fukushima University, 1-1 Kanayagawa, Fukushima, Fukushima 960-1296, Japan.
authors.forename: Michio
authors.initials: M
authors.lastname: Aoyama
authors.affiliation: Low Level Radioactivity Laboratory, Kanazawa University, Wake, Nomi, Ishikawa 923-1224, Japan.
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Hamajima
authors.affiliation: Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology, 2-15 Natushima-cho, Yokosuka, Kanagawa 237-0061, Japan.
authors.forename: Shigeto
authors.initials: S
authors.lastname: Nishino
authors.affiliation: Research and Development Center for Global Change, Japan Agency for Marine-Earth Science and Technology, 2-15 Natushima-cho, Yokosuka, Kanagawa 237-0061, Japan.
authors.forename: Akihiko
authors.initials: A
authors.lastname: Murata
authors.affiliation: Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology, 2-15 Natushima-cho, Yokosuka, Kanagawa 237-0061, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Kikuchi
mesh_terms: D001110:Arctic Regions; D002588:Cesium Radioisotopes / Q000032:analysis*; D062406:Fukushima Nuclear Accident; D006801:Humans; D007564:Japan; D010140:Pacific Ocean; D011834:Radiation Monitoring; D012623:Seawater / Q000032:analysis; D013997:Time Factors; D014875:Water Pollutants, Radioactive / Q000032:analysis / Q000037:antagonists & inhibitors*
chemical_list: D002588:Cesium Radioisotopes; D014875:Water Pollutants, Radioactive; C000614989:Cesium-137; C000614987:Cesium-134
keywords: Arctic Ocean; Bering Sea; Fukushima Dai-ichi nuclear power plant; Radiocesium; Western subarctic area of the North Pacific