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Image analysis of radiocesium distribution in coniferous trees two years after the Fukushima Daiichi Nuclear Power Plant accident

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Abstract

For the investigation of the characteristics and behavior of fallout deposits of the accident at the Fukushima Daiichi Nuclear Power Plant (NPP) in March 2011, autoradiographic imaging was used to examine tree leaves, branches, and barks from locations at 10–60 km south of the Fukushima Daiichi NPP. The autoradiographs revealed particulate contamination in many old leaf samples; few contaminations were present in current-year leaves. Although no particulate contamination was observed on leaves that had grown after the accident, a relatively small amount of radiocesium had become incorporated in the upper leaves of the sampled branches.

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Acknowledgments

My special thanks are due to the support of local people for searching the suitable location and samples. Dr. Ogata (Nagoya Univ.) and Mr. Satou (Tsukuba Univ.) also helped for sampling. I wish to thank for Dr. Ogata measuring reference materials for the quantitative analysis.

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Authors and Affiliations

  1. Radioisotope Research Facility, The Jikei University School of Medicine, 3-25-8, Nishi-shinbashi, Minato-ku, Tokyo, 105-8461, Japan

    Haruka Minowa

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  1. Haruka Minowa
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Correspondence to Haruka Minowa.

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Minowa, H. Image analysis of radiocesium distribution in coniferous trees two years after the Fukushima Daiichi Nuclear Power Plant accident. J Radioanal Nucl Chem 303, 1601–1605 (2015). https://doi.org/10.1007/s10967-014-3817-3

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  • DOI: https://doi.org/10.1007/s10967-014-3817-3

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