淮南潘一矿采煤塌陷积水区水环境健康风险评估

发布时间：2018-06-28 03:16

本文选题：采煤塌陷区 + 水环境质量　；参考：《煤田地质与勘探》2017年04期

【摘要】：以淮南潘一矿塌陷积水区为例,分析测试了塌陷积水区12个采样点水样中的7种重金属元素(Cr、Cd、Zn、Cu、Pb、Ni和Fe)的含量,采用美国环保局(USEPA)推荐的水环境健康风险评价模型,对重金属由食入途径进入人体所引起的健康风险进行评估和分析。研究发现,研究区水体中重金属致癌风险值为(5.06~8.06)×10~( 6)/a,根据我国环境保护部推荐的健康风险标准,存在健康风险。其中,Cr的致癌风险占总致癌风险的98.52%。非致癌健康风险值在10~( 10)/a的数量级,健康风险不明显,而非致癌健康风险的贡献大小顺序为,CuPbFeCrCdNiZn。其中,Cu的贡献率最大,占非致癌总风险值的48.62%。同时还发现,研究区的重金属致癌风险占总健康风险的99.99%,这表明该区域总的水质健康风险几乎全部由致癌风险构成,而致癌风险中又几乎由Cr组成。
[Abstract]:The contents of 7 heavy metal elements (Cr ~ (2 +) ~ (2 +) (Cr ~ (2 +) ~ (2 +) (Cr ~ (2 +) ~ (2 +) in water samples from 12 sampling sites in Panyi Mine of Huainan County were analyzed and tested. The water environmental health risk assessment model recommended by USEPA was used. The health risks caused by heavy metals entering human body were evaluated and analyzed. It is found that the carcinogenic risk of heavy metals in the study area is (5.06 ~ 8.06) 脳 10 ~ (6) / a. According to the health risk standard recommended by the Ministry of Environmental Protection of China, there is a health risk. The carcinogenic risk of Cr accounted for 98.52% of the total carcinogenic risk. The non-carcinogenic health risk is in the order of 10 ~ (10) / a, the health risk is not obvious, and the contribution of non-carcinogenic health risk is in the order of CuPbFeCrCdNiZn. The contribution rate of Cu is the largest, accounting for 48.62% of the total non-carcinogenic risk. It is also found that the carcinogenic risk of heavy metals in the study area accounts for 99.99% of the total health risk, which indicates that the total water quality health risk in this area is almost entirely composed of carcinogenic risks, and the carcinogenic risk is almost composed of Cr.
【作者单位】：南京大学地球科学与工程学院;
【基金】：国家自然科学基金面上项目(41372353) 国家科技支撑计划(2012BAC10B02) 淮南矿业集团科研项目(HNKY-JT-JS-2011)~~
【分类号】：R123.1;X82

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