Anthropogenic and Natural Radioactivity in Pond Water, Soil and Biota at the Ecology Field in Saitama Prefecture

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  • 埼玉県内のモデル生態系（生態園）における池水，土壌，生物試料中の人工及び天然の放射能
  • サイタマ ケンナイ ノ モデル セイタイケイ(セイタイエン)ニ オケル チスイ,ドジョウ,セイブツ シリョウ チュウ ノ ジンコウ オヨビ テンネン ノ ホウシャノウ

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Abstract

<p>Activity concentrations in pond water, soil and biota samples, collected at the ecology field in Saitama prefecture during the period of 2011 to 2013, were measured by γ-ray spectrometry. In all samples collected at the ecology field, Fukushima Dai-ichi Nuclear Power Plant derived 134Cs and 137Cs, and natural 40K were detected. The concentrations of 134Cs and 137Cs varied widely in each sample. Moreover, 110mAg was detected in crayfish, and the concentrations of 110mAg were in the range of 0.11～1.0 Bq/kg・wet. Concentration ratios of 137Cs in soil and biota (Bq/kg) to that in pond water (Bq/kg) were about 5～5400. It was so suggested that 137Cs tended to be accumulated in these samples at the ecology field.</p>

Journal

  • RADIOISOTOPES

    RADIOISOTOPES 67 (5), 225-232, 2018-05-15

    Japan Radioisotope Association

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