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Geochemical behavior and activity ratios of Fukushima-derived radionuclides in aerosols at the Geological Survey of Japan, Tsukuba, Japan

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Abstract

Aerosols from the Fukushima Dai-ichi Nuclear Power Plant accident were collected at the Geological Survey of Japan. The temporal patterns of the 134Cs/137Cs, 136Cs/137Cs, and 132Te/137Cs activity ratios were consistent with expectations based on their half-lives. Those for 131I and 129mTe decreased with some fluctuations. 110mAg/137Cs declined more rapidly than expected and 95Nb/137Cs increased with time. The results suggest that the temporal patterns depended not only on their half-lives but also on many factors such as chemical speciation, the diversity of sources, changes in the temperature and discharge rate from the reactors, and the processes of transport.

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Authors and Affiliations

  1. Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8567, Japan

    Y. Kanai

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  1. Y. Kanai
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Correspondence to Y. Kanai.

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Kanai, Y. Geochemical behavior and activity ratios of Fukushima-derived radionuclides in aerosols at the Geological Survey of Japan, Tsukuba, Japan. J Radioanal Nucl Chem 303, 1405–1408 (2015). https://doi.org/10.1007/s10967-014-3495-1

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  • DOI: https://doi.org/10.1007/s10967-014-3495-1

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