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Chemical forms of radioactive Cs in soils originated from Fukushima Dai-ichi nuclear power plant accident studied by extraction experiments

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Abstract

We performed three-step sequential extraction experiments, with Milli-Q water, 1 M ammonium acetate solution and 0.11 M acetic acid as extractants of Cs, on soils radiologically contaminated by Fukushima Dai-ichi Nuclear Power Plant accident. Though aqueous solutions containing ammonium salts are effective to extract Cs from soils, the obtained overall extracted fractions of radioactive Cs by the three-step sequential extraction process were less than 30 %. Thus, the most of the radioactive Cs deposited on soils is probably incorporated in the non- or hardly exchangeable site of clay minerals, components of the soils.

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Authors and Affiliations

  1. Faculty of Science and Technology, Sophia University, 7-1 Kioicho, Chiyoda-ku, Tokyo, 102-8554, Japan

    Masaaki Hirose, Yoshikazu Kikawada, Takao Oi & Katsumi Hirose

  2. Graduate School of Engineering, Tokyo City University, 1-28-1 Tamazutsumi, Setagaya-ku, Tokyo, 158-8557, Japan

    Atsushi Tsukamoto & Teruyuki Honda

  3. Graduate School of Engineering, Tohoku University, 6-6-01-24, Aramaki Aza Aoba Aoba-ku, Sendai, Miyagi, 980-8579, Japan

    Hiroaki Takahashi

Authors
  1. Masaaki Hirose
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  2. Yoshikazu Kikawada
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  3. Atsushi Tsukamoto
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  4. Takao Oi
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  5. Teruyuki Honda
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  6. Katsumi Hirose
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  7. Hiroaki Takahashi
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Correspondence to Masaaki Hirose.

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Hirose, M., Kikawada, Y., Tsukamoto, A. et al. Chemical forms of radioactive Cs in soils originated from Fukushima Dai-ichi nuclear power plant accident studied by extraction experiments. J Radioanal Nucl Chem 303, 1357–1359 (2015). https://doi.org/10.1007/s10967-014-3592-1

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  • DOI: https://doi.org/10.1007/s10967-014-3592-1

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