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Depth distribution of239,240Pu and137Cs in soils of South Korea

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Abstract

Depth distribution of239,240Pu and137Cs in the soils of South Korea have been studied. The average accumulated depositions were estimated roughly to be 54.8±32.1 Bq·m−2 for239,240Pu, 1.6±1.0 Bq· ·m−2 for238Pu and 1982.8±929.1 Bq·m−2 for137Cs. The activity ratios of239,240Pu/137Cs in soils were found to be in the narrow range of 0.0153 to 0.0364 with a mean value of 0.0230±0.006. The concentrations of239,240Pu and137Cs in soils decrease exponentially with increasing the soil depth. A significant correlation was found between the concentration of239,240Pu and that of137Cs. The activity ratios of239,240Pu/137Cs tend to increase slightly with increasing soil depth.

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Authors and Affiliations

  1. Environmental Assessment Division, Korea Atomic Energy Research Institute, 305-353, Taejon, (South Korea)

    M. H. Lee, C. W. Lee, K. H. Hong & Y. H. Choi

  2. Department of Chemistry, Chungnam National University, 305-764, Taejon, South Korea

    B. H. Boo

  3. Center for Molecular Science, 373-1 Kusung-dong, Yusung-gu, 305-701, Taejon, (South Korea)

    B. H. Boo

Authors
  1. M. H. Lee
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  2. C. W. Lee
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  3. K. H. Hong
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  4. Y. H. Choi
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  5. B. H. Boo
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Lee, M.H., Lee, C.W., Hong, K.H. et al. Depth distribution of239,240Pu and137Cs in soils of South Korea. Journal of Radioanalytical and Nuclear Chemistry, Articles 204, 135–144 (1996). https://doi.org/10.1007/BF02060874

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  • DOI: https://doi.org/10.1007/BF02060874

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