Combination of atomic lines and molecular bands for uranium optical isotopic analysis in laser induced plasma spectrometry |
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| Authors: | Xianglei Mao George C-Y Chan Inhee Choi Vassilia Zorba Richard E Russo |
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| Institution: | 1.Laboratory of Marine Environmental Science, Faculty of Agriculture,Kyushu University,Fukuoka,Japan;2.Faculty of Fisheries and Marine Sciences,Sam Ratulangi University,Manado,Indonesia;3.Noto Marine Laboratory, Institute of Nature and Environmental Technology,Kanazawa University,Noto-cho,Japan;4.Sado Marine Biological Station, Faculty of Science,Niigata University,Sado,Japan;5.Laboratory of Biological Oceanography, Graduate School of Agricultural Science,Tohoku University,Sendai,Japan;6.Institute of Environmental Radioactivity,Fukushima University,Fukushima,Japan;7.Tateyama Station, Field Science Center,Tokyo University of Marine Science and Technology,Tateyama,Japan;8.Research Center for Marine Biology, Asamushi, Graduate School of Life Science,Tohoku University,Asamushi,Japan;9.Usujiri Fisheries Station, Field Science Center for Northern Biosphere,Hokkaido University,Hakodate,Japan;10.Field Science Education and Research Center,Kyoto University,Kyoto,Japan;11.Central Institute of Radioisotope Sciences and Safety,Kyushu University,Fukuoka,Japan |
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| Abstract: | Radionuclide concentrations in wharf roaches inhabiting coastal areas of Honshu, Japan, were investigated in October 2011 and June 2012. Relative high concentrations of 110mAg (2.1–127 Bq kg-wet?1), 134Cs (2.6–61 Bq kg-wet?1), and 137Cs (3.5–92 Bq kg-wet?1) were detected in specimens from the eastern Honshu areas. Significantly lower 137Cs concentrations (0.7–1.6 Bq kg-wet?1) were detected in specimens from western and northern Honshu. The decay-corrected 137Cs concentration was significantly inversely correlated with the distance from the Fukushima Dai-ichi Nuclear Power Plant. Thus, wharf roach may serve as a good bioindicator for monitoring radioactive contamination of its habitats. |
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