首页> 中文期刊>有色金属(冶炼部分) >某铀矿山及其周边地区地下水重金属健康风险评估

某铀矿山及其周边地区地下水重金属健康风险评估

     

摘要

分别对某铀矿山及周边地区于丰水期、平水期和枯水期各采集了20个钻孔地下水样品进行测试,分析了5种重金属铅、锰、铬(六价)、镉、砷的含量,并采用风险评估模型对铀矿山及其周边地区进行健康风险的初步评估.结果表明,研究区地下水总健康风险值范围为8.74×10-7~1.06×10-1 a-1,95%的地下水样品总健康风险值低于ICRP和USEPA推荐的可接受的健康风险值,地下水中的重金属含量不会对周边居民产生明显危害.%To assess heavy metal pollution in one uranium mine with its surrounding areas and its health risk,20 groundwater samples were collected in wet,normal and dry season,and con.centrations of Mn,Pb,Cr6+,As and Cd in samples were measured.Health risk assessment was conducted with environmental health risk assessment model recommended by USEPA.The results show that total health risk value is in the range of 8.74× 10-7~1.06× 10-4a-1.Total risk index value (RI) of 95% of samples is lower than the maximum acceptable levels set by ICRP and USEPA.Content of heavy metals in groundwater has no obvious hazards to nearby residents.

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