地球学报2026，Vol.47Issue(2)：387-398,12.DOI:10.3975/cagsb.2025.112721
某退役铀矿山放射性现状调查及评价
Investigation and Evaluation of Environmental Radioactivity for a Decommissioned Uranium Mine
摘要
Abstract
With the continuous growth in the number of decommissioned uranium mining and metallurgy facilities worldwide,the prevention and control of radioactive environmental pollution have emerged as a critical issue for the sustainable development of the nuclear industry.This study investigates the characteristics of radioactive pollution in a decommissioned uranium mine,aiming to clarify the sources of pollution and the current status of radiation levels.The results indicate that after the closure and decommissioning treatment of the mine,only the collapse area met the decommissioning treatment requirements.The radon exhalation rate and gamma(γ)radiation dose rate in the waste rock dump,open-pit mine,industrial site,and tailings storage facility all exceeded the regulatory limits specified in GB 14586-1993.The specific activity of 226Ra in the surface soil exceeded 248.9 Bq/kg(calculated as the local background value of 68.9 Bq/kg+180 Bq/kg),and the content of natural uranium(U)exceeded 30 mg/kg.Buildings,ore transportation roads,streams,and equipment pipelines within the mining area were contaminated to varying degrees.The concentration of natural uranium(U)and manganese(Mn)in the pit water exceeded the discharge standard limits.The individual effective dose from internal irradiation by radon and its daughters and the individual effective dose from external gamma(γ)radiation were both greater than 0.1 mSv/a,necessitating urgent decommissioning and remediation measures.关键词
退役铀矿山/放射性环境/管理限值/个人有效剂量Key words
decommissioned uranium mine/radioactive environment/management limit/individual effective dose分类
资源环境引用本文复制引用
孙长亮,杨军,李春阳,周玉县,李彦漫,范超楠..某退役铀矿山放射性现状调查及评价[J].地球学报,2026,47(2):387-398,12.基金项目
本文由2024年中核铀业青年创新基金项目"某铀矿废弃污染物风险识别与量化研究"(编号:NKLUR-2024-0N-019)资助. This study was supported by 2024 Youth Innova-tion Fund Project of China National Nuclear Corpora-tion Uranium Industry(No.NKLUR-2024-0N-019). （编号:NKLUR-2024-0N-019）
