Concentration Factors for ^<137>Cs in Japanese Coastal Fish (1984-1990)

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概要

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• Concentration factors (CFs; Bq kg^<-1> in wet fish muscle/Bq kg^<-1> in filtered seawater) for ^<137>Cs were determined in Japanese coastal fish collected from 1984 to 1990. ^<137>Cs/Cs (stable) atom ratios were also examined to clarify the distribution equilibrium of ^<137>Cs between marine fish and seawater. The geometric mean of CF in Japanese coastal fish was 52±4 (standard error of the mean), with values ranging from 14 to 133. ^<137>Cs/Cs atom ratios both in marine fish and seawater indicate that the distribution of ^<137>Cs was in equilibrium between fish muscle and seawater. Therefore, CF values obtained in the present study can be regarded as equilibrated. Our results show that the CFs for ^<137>Cs in Japanese coastal fish were within the range of Japanese guidelines, but were below the recommended IAEA value.

著者

• Tateda Y

  Central Res. Inst. Electric Power Ind. Chiba Jpn

• TATEDA YUTAKA

  Central Research Institute of Electric Power Industry, Abiko Research Laboratory

• KOYANAGI TAKU

  Japan Atomic Industrial Forum, Jakarta Liaison Office, JL. Genderal Sudirman Kav

• Koyanagi T

  Japan Atomic Industrial Forum Jakarta Liaison Office Jl. Genderal Sudirman Kav

• Tateda Yutaka

  Central Research Institute Of Electric Power Industry Abiko Research Laboratory: (present Address) I

関連論文

• Concentration Factors for ^Cs in Japanese Coastal Fish (1984-1990)
• Cs/K Atom Ratios of Marine Organisms of Different Trophic Levels in Japanese Coastal Waters

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