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Tritium Concentrations of Natural Waters in Rokkasho-Mura

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Abstract

There are two types of lakes in the vicinity of the nuclear fuel cycle facilities in Rokkasho-mura. One is a brackish lake, Obuchinuma Lake, and the other is a freshwater lake, Takahokonuma Lake. Tritium concentrations in Obuchinuma Lake had a good negative correlation with salinity at any sampling point and period. We consider that the water of Obuchinuma Lake has been only slightly influenced by precipitation depending on the ratio of seawater and river water of the Futamata River. Tritium concentrations in Takahokonuma Lake ranged from 0.6 to 1.5 Bq·1-1, and were higher than that in precipitation in Rokkasho-mura. Tritium concentration in rivers flowing into the lakes ranged from 0.7 to 2 Bq·l-1, and were higher than that in the precipitation. It is assumed that ground waters with higher levels of tritium inflow into the rivers.

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References

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Authors and Affiliations

  1. Aomori Prefectural Institute of Public Health and Environment, 1-1-1, Higashitsukurimichi, Aomori City, Aomori, 030, Japan

    K. Tonosaki & H. Kudoh

  2. Aomori Prefectural Government, 1-1-1, Nagashima, Aomori City, Aomori, 030, Japan

    H. Kimura

Authors
  1. K. Tonosaki
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  2. H. Kudoh
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  3. H. Kimura
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Tonosaki, K., Kudoh, H. & Kimura, H. Tritium Concentrations of Natural Waters in Rokkasho-Mura. Journal of Radioanalytical and Nuclear Chemistry 243, 579–585 (2000). https://doi.org/10.1023/A:1016091912400

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  • DOI: https://doi.org/10.1023/A:1016091912400

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