常德市主要饮用水源重金属健康风险评价  

Health Risk Assessment of Heavy Metals in Major Drinking Water Sources in Changde City

作　　者：万明 张红波 吴海[3] 

机构地区：[1]湖南科技大学资源环境与安全工程学院,湖南湘潭411201 [2]湖南科技大学机电工程学院,湖南湘潭411201 [3]湖南科技大学南方煤矿瓦斯与顶板灾害预防控制安全生产重点实验室,湖南湘潭411201

出　　处：《矿业工程研究》2017年第4期73-78,共6页Mineral Engineering Research

摘　　要：对常德市2016年主要饮用水源地沅江和澧水重金属浓度实时监测数据进行统计研究,运用US EPA推荐的健康风险评价模型对该市主要饮用水源水体中重金属的健康风险进行评价.研究得出,沅江中重金属健康危害的个人年风险:As(致癌物)>Cd(致癌物)>Pb(非致癌物),健康风险值分别为1.03×10^(-4),3.59×10^(-6),7.39×10^(-8)a^(-1).澧水中重金属健康风险排序和沅江类似,风险值分别为1.24×10^(-4),4.00×10^(-6),7.62×10^(-8)a^(-1).对人体健康的年总风险值略微高于国际辐射防护委员会(ICRP)和美国环境保护局(US EPA)的推荐值5×10^(-5)和1×10^(-4)a^(-1),应该引起相关部门重视.Based on the statistical study of the real-time monitoring data of heavy metal concentration in Yuan River and Li River-the main drinking water sources of Changde City in 2016,the health risk of heavy metals contained in the main drinking water sources of Changde City is evaluated by the health risk assessment model recommended by the US EPA. The study concludes that the personal annual risk of health hazards of heavy metals contained in Yuan River is ranked as As( Carcinogens) >Cd( Carcinogens) >Pb( Non-carcinogens) with a health risk value of 1.03×10^(-4),3.59×10^(-6),7.39×10^(-8) a^(-1) respectively. The risk of health hazards of heavy metals contained in Li River ranks similarly to that of Yuan River with a health risk value of 1.24×10^(-4) a^(-1) for As,4.00×10^(-6) a^(-1) for Cd,7.62×10^(-8) a^(-1) for Pb. The overall annual health risk for human health is slightly higher than 5 ×10^(-5) and 1 × 10^(-4) a^(-1) recommended by the ICRP and the US EPA,which should be paid attentions to by the relevant departments.

关 键 词：饮用水源 重金属 健康风险评价 个人年风险 

分 类 号：X820.4[环境科学与工程—环境工程]