Heavy Metal Contamination and Health Risk Assessment in the Vicinity of a Tailing Pond in Guangdong, China.
Heavy Metal Contamination and Health Risk Assessment in the Vicinity of a Tailing Pond in Guangdong, China.
复制标题
中国广东某尾矿库周边重金属污染及健康风险评估
DOI：
10.3390/ijerph14121557
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发表时间：
2017-12-12
影响因子：
--
通讯作者：
Tang J
中科院分区：
文献类型：
--
作者：
Liang Y;Yi X;Dang Z;Wang Q;Luo H;Tang J
本研究的目的是评估重金属污染和居民的健康风险在附近的尾矿库在广东，中国南方。水，土壤，大米和蔬菜样品收集的区域附近的尾矿库。结果表明，地表水仅受Ni和As污染，地下水未受重金属污染。水稻土中Pb、Zn、Cu、Cd、Ni和As含量超标，Cr含量未超标。菜地土壤中除Ni和As外，其余重金属含量均在标准值以上。土壤重金属含量一般随着距离污染源的增加而降低。叶菜类蔬菜受到Pb、Cr、Cd和Ni的污染，非叶菜类蔬菜仅受到Cr的污染。叶菜类蔬菜和非叶菜类蔬菜中重金属含量差异显著。几乎所有的大米都被重金属污染了。饮食是非致癌风险的最重要贡献者，显著高于安全水平1。总的癌症风险也超出了安全范围（10−6-10−4）。结果显示，尾矿库附近的居民有潜在的健康问题的风险。
The purpose of this study was to assess heavy metal contamination and health risks for residents in the vicinity of a tailing pond in Guangdong, southern China. Water, soil, rice, and vegetable samples were collected from the area in the vicinity of the tailing pond. Results showed that surface water was just polluted by Ni and As, while groundwater was not contaminated by heavy metals. The concentrations of Pb, Zn, Cu, Cd, Ni, and As in the paddy soil exceeded the standard values but not those of Cr. In vegetable soils, the concentration of heavy metals was above the standard values except for Ni and As. Soil heavy metal concentrations generally decreased with increasing distance from the polluting source. Leafy vegetables were contaminated by Pb, Cr, Cd, and Ni, while the non-leafy vegetables were contaminated only by Cr. There was a significant difference in heavy metal concentrations between leafy vegetables and non-leafy vegetables. Almost all the rice was polluted by heavy metals. Diet was the most significant contributor to non-carcinogenic risk, which was significantly higher than the safe level of 1. The total cancer risk was also beyond the safe range (10−6–10−4). Results revealed that there is a risk of potential health problems to residents in the vicinity of the tailing pond.
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影响因子：
3.8
作者：
Fan, Yuan;Li, Hua;Cheng, Fangqin
通讯作者：
Cheng, Fangqin
影响因子：
6.8
作者：
Chary, N. Sridhara;Kamala, C. T.;Raj, D. Samuel Suman
通讯作者：
Raj, D. Samuel Suman
影响因子：
2
作者：
Arao, Tomohito;Takeda, Hiroyuki;Nishihara, Eiji
通讯作者：
Nishihara, Eiji
影响因子：
3.9
作者：
Christou, Anastasis;Theologides, Christodoulos P.;Varnavas, Soterios P.
通讯作者：
Varnavas, Soterios P.
影响因子：
3.9
作者：
Lim, Hye-Sook;Lee, Jin-Soo;Sager, Manfred
通讯作者：
Sager, Manfred