贵州省主要磷矿区磷石膏放射性水平调查与评价

Investigation and evaluation on the radioactivity level of phosphogypsum in main phosphate mining areas of Guizhou Province

本文采用对比分析和理论计算的方法对贵州省主要磷矿区(开阳-息烽矿集区、瓮安-福泉矿集区)的磷矿石、磷石膏及其利用产品的放射性水平进行分析与评价,为磷石膏后期的综合利用提供辐射防护方面的建议。本次调查结果表明:贵州省主要磷矿区磷矿石的放射性水平与贵州省土壤放射性水平背景值相当,磷石膏及其利用产品的放射性水平整体低于贵州省土壤背景值水平,磷石膏的综合利用不会对环境和个人带来额外的辐射污染。

In this paper,the radioactivity levels of phosphate ores,phosphogypsum and its utilization products in the main phosphate mining areas of Guizhou Province(Kaiyang-Xifeng and Weng'an-Fuquan mining areas)are analyzed and evaluated by means of comparative analysis and theoretical calculation,so as to provide suggestions on radiation protection for its later comprehensive utilization.The results of this survey indicate that,the radioactivity level of phosphate ores in the main phosphate mining areas is equivalent to the background level of soils in Guizhou Province,the radioactivity level of phosphogypsum and its utilization products is lower than the background level of soil,and the comprehensive utilization of phosphogypsum will not bring about additional radiation pollution to the environment and people.