文献类型：期刊文献

英文题名：Effects of long-term zinc smelting activities on the distribution and health risk of heavy metals in agricultural soils of Guizhou province, China

作者：Chen, Feng Wang, Qian Meng, Fanli Chen, Miao Wang, Bing

第一作者：陈凤

通信作者：Wang, B[1]

机构：[1]Guizhou Inst Technol, Coll Resource & Environm Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Guizhou Educ Univ, Sch Geog & Resources, Guiyang 550018, Guizhou, Peoples R China;[3]Guizhou Acad Environm Sci & Designing, Guiyang 550081, Guizhou, Peoples R China;[4]Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550025, Guizhou, Peoples R China;[5]Minist Educ, Key Lab Karst Georesources & Environm, Guiyang 550025, Guizhou, Peoples R China;[6]Minist Educ, Guizhou Karst Environm Ecosyst Observat & Res Stn, Guiyang 550025, Guizhou, Peoples R China

第一机构：贵州理工学院资源与环境工程学院

通信机构：corresponding author), Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550025, Guizhou, Peoples R China.

年份：0

外文期刊名：ENVIRONMENTAL GEOCHEMISTRY AND HEALTH

收录：;Scopus(收录号：2-s2.0-85091066112);WOS:【SCI-EXPANDED(收录号:WOS:000569533600001)】；

基金：This work was supported by the National Key Research and Development Program of China (2016YFC0502602), the National Natural Science Foundation of China (41977297), the High-Level Overseas Talent Innovation and Entrepreneurship Project of Guizhou Province (201808), the Special Research Fund of Natural Science (Special Post) of Guizhou University [(2020)01] and the Talent Introduction Research Project of Guizhou University [(2015)60].

语种：英文

外文关键词：Heavy metals; Agricultural soil; Zinc smelting; Distribution; Health risk; Guizhou province

摘要：To assess the effect of zinc smelting on environment and human health, the concentration, distribution, sources and health risk of eight heavy metals (Pb, Cd, Cu, Zn, Cr, Ni, Mn, and As) were investigated from agricultural soils in a long-term Zn smelting area in Guizhou, China. Different health risk assessment methods and models were used to access health risks. The results show that the concentrations of all the eight heavy metals were significantly higher than their corresponding background values (p < 0.05). Pb, Cd, and As were the most contaminated elements, with 93.6%, 90.3% and 48.4% of agricultural soil samples higher than the risk screening values, respectively. Statistical analysis indicated that Pb, Cd, Cu, Zn, Mn, and As could be mainly accounted for Zn smelting activities, while Cr and Ni may be generally more controlled by natural sources. The geo-accumulation index (I-geo) suggested that the most seriously contaminating heavy metals were Pb, Cd, and Zn, with 96.8%, 90.3%, and 96.8%, respectively, of the soil samples classified as moderately to extremely contaminated. The non-carcinogenic health risk associated with Pb, Cd and As were observed for children, meanwhile, the carcinogenic risk due to As was found for both adults and children. Regardless of cancer risk or non-cancer risk, local children are at greater risk than adults. Therefore, Pb, Cd and As play the leading role to cause potential health risks in the study area, which need to be paid more attention and also effective control measures should be taken.