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Model estimation of 137Cs concentration change with time in seawater and sediment around the Fukushima Daiichi Nuclear Power Plant site considering fast and slow reactions in the seawater-sediment systems

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Abstract

A dynamic compartment model was developed to estimate 137Cs concentrations in both seawater and sediment that had been released in the TEPCO’s Fukushima Daiichi Nuclear Power Plant 2011 accident. The model parameters were set from the best fitting of the results observed at the two closest sampling stations to the FDNPP site, then applied these parameters to three other stations located about 15–43 km away from the FDNPP. The 137Cs concentrations in seawater and sediment estimated by the developed model agreed well with observation results for these stations.

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Acknowledgments

This work was partially supported by the Agency for Natural Resources and Energy, the Ministry of Economy, Trade and Industry (METI), Japan.

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Authors and Affiliations

  1. Yfirst Inc., 937-4 Nishiya-cho, Hodogaya-ku, Yokohama-shi, Kanagawa, 240-0052, Japan

    K. Yamamoto

  2. Office of Biospheric Assessment for Waste Disposal, National Institute of Radiological Sciences, Anagawa 4-9-1, Inage-ku, Chiba, 263-8555, Japan

    K. Tagami, S. Uchida & N. Ishii

Authors
  1. K. Yamamoto
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  2. K. Tagami
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  3. S. Uchida
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  4. N. Ishii
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Correspondence to K. Tagami.

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Yamamoto, K., Tagami, K., Uchida, S. et al. Model estimation of 137Cs concentration change with time in seawater and sediment around the Fukushima Daiichi Nuclear Power Plant site considering fast and slow reactions in the seawater-sediment systems. J Radioanal Nucl Chem 304, 867–881 (2015). https://doi.org/10.1007/s10967-014-3897-0

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  • DOI: https://doi.org/10.1007/s10967-014-3897-0

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