Volume 11 Issue 6
Nov.  2021
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Article Navigation >  Journal of Environmental Engineering Technology  > 2021  >  11(6): 1110-1120
FENG Dongxia, LIAO Haiqing, YANG Fang, WANG Xihuan, JIA Shiqi, ZHAO Qianyu, ZHANG Yi, BAI Yangwei. Distribution characteristics and application of Pu isotopes in soils and lake sediments of China[J]. Journal of Environmental Engineering Technology, 2021, 11(6): 1110-1120. doi: 10.12153/j.issn.1674-991X.20210111
Citation: FENG Dongxia, LIAO Haiqing, YANG Fang, WANG Xihuan, JIA Shiqi, ZHAO Qianyu, ZHANG Yi, BAI Yangwei. Distribution characteristics and application of Pu isotopes in soils and lake sediments of China[J]. Journal of Environmental Engineering Technology, 2021, 11(6): 1110-1120. doi: 10.12153/j.issn.1674-991X.20210111
shu

Distribution characteristics and application of Pu isotopes in soils and lake sediments of China

doi: 10.12153/j.issn.1674-991X.20210111
  • 1.

    Research Center of Comprehensive Treatment of Watershed Water Environment Pollution,Chinese Research Academy of Environmental Sciences

  • 2.

    Key Laboratory for Information System of Mountainous Area and Protection of Ecological Environment of Guizhou Province,Guizhou Normal University

  • 3.

    School of Resources Environmental & Chemical Engineering, Nanchang University

  • 4.

    School of Water Resources and Environment, China University of Geosciences (Beijing)

More Information
  • Corresponding author: LIAO Haiqing E-mail: liaohq@craes.org.cn
  • Received Date: 2021-04-08
  • Publish Date: 2021-11-20
    Abstract
  • Plutonium (Pu) is an important radionuclide that exists in the environment in trace or ultra-trace level, which is closely associated with the nuclear industry. The distribution characteristics, migration behavior and the application in geochemistry of 239+240Pu in soil and lake sediments in recent years in China were reviewed. The results showed that the sedimentation fluxes of 239+240Pu in soils were estimated at from 7.31 MBq/km2 to 554.00 MBq/km2; while that of 239+240Pu in lake sediments were from 4.80 MBq/km2 to 240.60 MBq/km2, varying with the environment and latitude in the study area. 240Pu/239Pu isotope ratios from soils and lake sediments were found to be within 0.048-0.307 and 0.164-0.193, with an average of 0.181±0.026 and 0.179±0.021, respectively. Global atmospheric nuclear test sedimentation was the main source of239+240Pu in China. As an important long-lived radionuclide, the combination of Pu isotope with other radionuclide tracing methods (e. g. 137Cs, 210Pb and 7Be tracing methods), remote sensing technology and traditional research methods should be strengthened in future research, which was conducive to improving the analysis accuracy of Pu in large-scale environmental areas and the tracing efficiency of 239+240Pu radionuclide tracing technology.

     

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