Concentrations of 239,240Pu and 241Am of marine products in coastal waters of Ibaraki |
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| Authors: | K Hashimoto S Hirota Y Kanari Y Hirai |
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| Institution: | (1) Radioactivity Section, Environmental Pollution Research Center of Ibaraki, 1-4043-8, Ishikawa, Mito-city, Ibaraki-ken, 310-0905, Japan |
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| Abstract: | More than 200 samples of marine products have been collected and analyzed for plutonium and almost 100 samples for americium around Hitachi, Tokai and Oarai in the pacific coast of Ibaraki prefecture. The data have shown that the concentration factor (CF) values for plutonium were 330 for bivalve, 770 for abalone (muscle) and 610 for brown algae. For americium, the CF was calculated as 2400 for bivalve, 1000 for abalone (muscle) and 420 for brown algae. |
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