RADIATION PROTECTION ›› 2022, Vol. 42 ›› Issue (2): 124-130.

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Research on radiation environment monitoring level of urban radioactive waste repository in Jiangsu province

TAN Weiyang1, ZHU Xiaoxiang2, WANG Peng1, ZHANG Yongtao2, LIU Ying1, GONG Chunhui1, YANG Yi1   

  1. 1. School of Environmental and Biological Engineering,Nanjing University of Science and Technology,Nanjing 210094;
    2. Jiangsu Nuclear and Radiation Safety Supervision and Management Center,Nanjing 210019
  • Received:2021-05-12 Online:2022-03-20 Published:2022-04-29

Abstract: With the widespread application of nuclear technology in various fields, radiation environment safety has received more and more attention. This article takes the urban radioactive waste storage in Jiangsu Province as the research object,. The radiation environment arround the radioactive waste storage has been continuously monitored for 6 years since 2015. The gamma radiation dose rate in the air around the radioactive waste storage, the gross alpha and gross beta in the water resources and the radionuclides in the soil have been monitored, and the radiation monitoring results are analyzed and evaluated. The results show that the mean range of the gamma radiation dose rate in the air at sensitive points is 59.0-96.5 nGy/h, the mean range around source storage is 81.92-103.32 nGy/h; the mean range of the gross alpha and gross beta in water resources are 0.90×10-2-5.87×10-2 Bq/L and 3.00×10-2-16.00×10-2 Bq/L, respectively. The changes in the gamma radiation dose rate in the air are mainly related to the distance from the source storage and the management of waste sources; the changes in the level of radioactivity in water are mainly related to the annual precipitation; the changes of radionuclides in the soil are mainly related to radioactive aerosols. All changes fluctuate within the background range, with almost no impact on the environment, which can ensure the the radiation environment safety.

Key words: urban radioactive waste storage, radioactivity, radiation monitoring, evaluation

CLC Number: 

  • TL75+1