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Dietary232Th and238U intakes for Japanese as obtained in a market basket study and contributions of imported foods to internal doses

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Abstract

Thorium-232 and238U contents in four food groups were measured by inductively coupled plasma mass spectrometry (ICP-MS). Daily intakes of232Th and238U for Japanese were estimated to 2.22 mBq and 15.5 mBq per person, respectively. Furthermore, preliminary estimations were made for the effects of imported foods on internal exposures for Japanese.

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Authors and Affiliations

  1. Division of Radioecology, National Institute of Radiological Sciences, 3609 Isozaki, 311-12, Hitachinaka-shi, Ibaraki, Japan

    K. Shiraishi

  2. Low Level Radioactivity Laboratory, Kanazawa University, Tatsunokuchi, 923-12, Ishikawa, Japan

    M. Yamamoto

Authors
  1. K. Shiraishi
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  2. M. Yamamoto
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Shiraishi, K., Yamamoto, M. Dietary232Th and238U intakes for Japanese as obtained in a market basket study and contributions of imported foods to internal doses. Journal of Radioanalytical and Nuclear Chemistry, Articles 196, 89–96 (1995). https://doi.org/10.1007/BF02036292

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  • DOI: https://doi.org/10.1007/BF02036292

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