某铀矿山辐射环境历史演化  

Historical Evolution of Radiation Environment in a Uranium Mine

作　　者：杨菲菲[1] 李旋[1] 金梦[1] 

机构地区：[1]辽宁大学环境学院,辽宁沈阳110036

出　　处：《环境监测管理与技术》2009年第6期34-38,46,共6页The Administration and Technique of Environmental Monitoring

基　　金：科技部国家社会公益基金资助项目(2005DIB21221)

摘　　要：调查了某铀矿山居民区环境空气中氡及其子体浓度、空气吸收剂量率和水中放射性核素含量。在已有资料的基础上,对历史时期的辐射环境进行分析。结合实地监测数据,对辐射剂量估算,评价该矿山辐射环境的现状。结果表明,该矿山排放的放射性物质确实对当地的居民产生了一定影响,在所调查的时间段内,该矿山评价区域由放射性物质排放所致关键子区居民的最大年有效剂量为0.52 mSv;无论是历史时期还是现状,其关键核素都是222Rn。指出,为了进一步降低放射性物质对环境的影响,首先应考虑减少222Rn的排放。It was investigated on the concentration of radon and its daughters in the air, radionuclide content in the water and absorbed dose rate of air in residential area around a uranium mine. Information in the past had been analyzed for learning the radiation environment history of the uranium mine. The radiation dose was estimated to evaluate the current situation of uranium mine environment according to monitoring. The results indicated that during the period of investigation, emission of radioactive substances from the key sub-area residents was 0.52 mSv and harmed to local inhabitants. The key isotope was ^222Rn both historical periods or current situation. It was important to reduce discharge of ^222Rn radioactive material to improve the environment.

关 键 词：铀矿山 辐射环境 氡及其子体 空气吸收剂量率 

分 类 号：TL75[核科学技术—辐射防护及环境保护] TD167[矿业工程—矿山地质测量]