标题: Contamination and health risk assessment of heavy metals in China's lead-zinc mine tailings: A meta-analysis
作者: Kan, XQ (Kan, Xiaoqing); Dong, YQ (Dong, Yiqie); Feng, L (Feng, Lu); Zhou, M (Zhou, Min); Hou, HB (Hou, Haobo)
来源出版物: CHEMOSPHERE 卷: 267 文献号: 128909 DOI: 10.1016/j.chemosphere.2020.128909 出版年: MAR 2021
摘要: The lead-zinc areas of China have faced serious foulteousqulated heavy metal pollution. In this study, data on As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn concentrations in China's lead-zinc mine tailings were collected and screened from published literature (2015-2020). The contamination assessments, geographical distributions, and health risk assessments of the eight heavy metals were analyzed. The results revealed that the mean concentrations of As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn exceeded the corresponding background values for soils. Moreover, most of the lead-zinc mine tailing areas contaminated by heavy metals were located in the southern and eastern regions of China. The health risk assessment results indicated that oral ingestion was the main exposure route of heavy metals in the mine tailings, and children were more vulnerable to adverse effects. For a single metal, As and Pb presented high non-carcinogenic risks, and As and Cu presented the unacceptable carcinogenic risks. This study provides a timely analysis proving the urgent necessity of the treatment of heavy metal pollution in lead-zinc tailings in China. (C) 2020 Elsevier Ltd. All rights reserved.
PubMed ID: 33187663
地址: [Kan, Xiaoqing; Dong, Yiqie; Feng, Lu; Zhou, Min; Hou, Haobo] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Hubei, Peoples R China.
[Hou, Haobo] Zhaoqing Wuhan Univ, Environm Technol Res Inst, Zhaoqing 526200, Guangdong, Peoples R China.
通讯作者地址: Zhou, M; Hou, HB (通讯作者)，Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Hubei, Peoples R China.
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