Spatial distribution, environmental risks, and sources of potentially toxic elements in soils from a typical abandoned antimony smelting site  

作　　者：Shengguo Xue Ramon Korna Jiarong Fan Wenshun Ke Wei Lou Jinting Wang Feng Zhu 

机构地区：[1]School of Metallurgy and Environment,Central South University,Changsha 410083,China [2]Hunan Hikee Environmental Technology CO.,Ltd.,Changsha 410001,China

出　　处：《Journal of Environmental Sciences》2023年第5期780-790,共11页环境科学学报（英文版）

基　　金：funding from the National Key Research and Development Program of China(No.2019YFC1803604).

摘　　要：The rapid development of the smelting industry increases the release of antimony(Sb)into the soil environment,which threatens human health and ecosystems.A total of 87 samples were collected from an abandoned Sb smelting site to evaluate pollution characteristics and environmental risks of the potentially toxic elements(PTEs).The contents of As,Cu,Ni,Pb,Sb,and Zn in the fresh soils determined by P-XRF were 131,120,60,145,240,and 154 mg/kg,respectively,whilst following drying,grinding,and sieving pretreatments,the corresponding contents increased to 367,179,145,295,479,and 276 mg/kg,respectively.There was a significant correlation between the data obtained by P-XRF and ICP-OES in the treated samples,which showed the application feasibility of P-XRF.The average contents of Sb and As were 440.6 and 411.6 mg/kg,respectively,which exceeded the control values of the development land in GB 36600-2018.The ecological risk levels of the six PTEs decreased in the following order:As>Sb>Pb>Zn>Ni>Cu.Non-carcinogenic risk revealed that As,Pb,and Sb posed health risks for children,whilst for carcinogenic risk,the risk values for As and Ni were higher than the limit values for both children and adults.Anthropogenic sources accounted for more than 70.0%of As,Pb,and Sb concentrations in soils,indicating a significant influence on PTEs accumulation.The findings provide a basis for quick determination of the contamination characteristics and risk control of PTEs at Sb smelting sites.

关 键 词：Sb smelting sites P-XRF Spatial distribution Environmental risks Sources apportionment 

分 类 号：X758[环境科学与工程—环境工程] X53