Abstract:We analyzed the contamination process by which the fat greenling, which was caught in the area off the mouth of the Ota River of Fukushima prefecture on August 1, 2012, concentrated radiocesium ( 134 Cs + 137 Cs) to the level of 25,800 Bq/kg-wet. The radioactivity environment of the area was insufficient to maintain or increase the radiocesium concentration in the fish at the time. Distribution of the radioactive materials in the otolith of the fat greenling estimated by beta-ray emissions suggested that the f… Show more
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