TY - JOUR
TI - Investigation of residual radioactivity in the soil of decommissioned nuclear facilities
AU - Yu Zhixiang
AU - Lian Bing
AU - Kang Jing
AU - Teng Keyan
AU - Sun Hongtu
AU - Chen Hailong
AU - Wu Feifei
JN - Thermal Science
PY - 2025
VL - 29
IS - 3
SP - 2051
EP - 2059
PT - Article
AB - According to the Soil Pollution Prevention and Control Law, the  decommissioning sites of nuclear facilities can be divided into three open  scenarios - agricultural land, class I construction land and class II  construction land. Relevant parameters (including soil density,  contamination depth, effective porosity of contaminated soil, personal  water intake, personal breathing volume, etc.) were selected for  calculation. Based on the dose screening value of 0.01 mSv per year, the  residual level in the soil was calculated and the main nuclide pathways were  analyzed. The study provides the principle of determining soil residual  radioactivity level according to different land use types and irradiation  routes, so that the treatment target of contaminated sites is more  scientific and detailed, and at the same time, the environmental management  of the management department can be adjusted. Compared with the recommended  values in foreign guidelines, the rationality and variety of residual  radioactivity levels can provide technical support for the revision of  "Regulations on Acceptable Levels of Residual Radio-activity in Soil of  Proposed Open Sites (Provisional)" (HJ53-2000).