This study aimed to investigate the pollution degree and human health risk of heavy metals in soil of electroplating factories.Soil samples were collected to measure eight heavy metals (As、Cd、Pb、Cr、Cu、Ni、Zn and Hg) in one electroplating factories,located in Jiangsu Province.The principle component analysis,nemerow index,geostatistics and health risk assessment model were respectively carried out.Results showed that the heavy metals such as Ni,Zn,Cu,Cr and Pb in soil might have the same pollution source,probably from the electroplating process.The carcinogenic risks of As and Cr were particularly significant (＞ 10-6).Moreover,the non-carcinogenic risks of As,Cr and Ni in soil were above acceptable level.The risk of eight heavy metals in plating workshop,metal stamping and filling soil were more significant,which were necessary to pay more attention.Therefore,measures must be taken to ensure environmental safety before redevelopment of industrial sites.%以江苏省某电镀厂为研究对象,采集电镀厂车间土壤样品,分析样品中8种重金属(As、Cd、Pb、Cr、Cu、Ni、Zn、Hg)含量分布,分别应用主成分分析、内梅罗综合污染指数法、地质统计学和场地健康风险评估模型,对土壤中重金属污染来源、污染程度、空间健康风险进行研究.结果表明:土壤中重金属Ni、Zn、Cu、Cr、Pb具有相似的人为污染源,可能主要来自于电镀作业产生的废水和废渣.As、Cr对人体的致癌风险尤其显著(＞10-6),且As、Cr、Ni的非致癌风险超过了可接受水平.电镀车间、金属冲压间和填满区土壤8种重金属的风险均比较显著,是需要重点关注的区域.因此,在工业场地再开发前必须采取措施保障环境安全.
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