工业园公共区域土壤重金属特定源风险评价  

Source-specific Human Health Risk Assessment of Soil Contamination in Public Areas of Industrial Parks

作　　者：周美春 蒋丹妮 刘翠 王超 刘炜 杨孟 ZHOU Meichun;JIANG Danni;LIU Cui;WANG Chao;LIU Wei;YANG Meng(Changzhou Environmental Protection Service Co.,Ltd.,Changzhou 213001,China;School of Environmental Science and Engineering,Wuxi University,Wuxi 214105,China)

机构地区：[1]常州环保服务有限公司,江苏常州213001 [2]无锡学院环境科学与工程学院,江苏无锡214105

出　　处：《环境科学与技术》2025年第4期225-236,共12页Environmental Science & Technology

基　　金：国家重点研发计划资助项目(2023YFC3707700)。

摘　　要：为确定工业园公共区域健康风险的优先控制源,该文选择长江下游某工业园作为研究对象,采集并测定公共区域土壤中As、Al、Fe、Ti、Cr、Cd、Cu、Ni、Pb、Zn和V的含量。结合空间分析和多元统计,解析土壤重金属的来源,结合健康风险评价模型确定特定源的健康风险贡献率。结果表明,公共区域土壤中As含量最大值为60.7 mg/kg,超过风险筛选值;Cd、Cu和Zn的富集系数最大值超过5,存在显著富集的现象。识别出4个重金属污染源:燃煤电厂(41%)、金属加工(16%)、化工(13%)和自然源(29%)。儿童的总非致癌风险系数(HI)中值为1.07,表明多种重金属元素的综合作用对儿童造成不可忽略的非致癌风险。As的致癌风险(CR)中值为2.01×10^(-4),对人体有较高致癌风险。虽然化工厂对重金属总量的贡献率仅排在第3位,但其却是健康风险的首要贡献者,对致癌和非致癌风险的贡献率分别高达69%和79%。总之,应重视工业园公共区域土壤重金属污染的人体健康风险,确定风险管控的优先控制源有助于工业园土壤污染防治。To identify the primary sources of risk management related to heavy metals in the public areas of industrial parks,an industrial park situated in the lower reaches of the Yangtze River was selected as the study area.Soil samples were collected from these public areas,and the concentrations of arsenic(As),aluminum(Al),iron(Fe),titanium(Ti),chromium(Cr),cadmium(Cd),copper(Cu),nickel(Ni),lead(Pb),zinc(Zn),and vanadium(V)were measured.Spatial analysis and multivariate statistical methods were utilized for the source apportionment of heavy metals in the public areas.Ultimately,sourcespecific human health risks were quantified by integrating source apportionment with human health risk assessment methodologies.The findings revealed that the maximum concentration of arsenic was 60.7 mg/kg,exceeding the risk screening value.Additionally,the maximum enrichment factors(EF)for cadmium,copper,and zinc were greater than 5,indicating significant enrichment.Source apportionment analysis indicated that the heavy metals in the public areas primarily originated from coalfired power plants(41%),metal processing(16%),chemical industries(13%),and natural sources(29%).The presence of heavy metals poses a considerable non-carcinogenic risk to children,with a median total hazard index(HI)of 1.07.Arsenic was found to present a high carcinogenic risk(CR)to humans,with a median CR of 2.01×10^(-4).Although chemical industries ranked third in terms of their contribution to total heavy metal concentrations,they accounted for the majority of the noncarcinogenic risk(69%)and carcinogenic risk(79%).In conclusion,the human health risks associated with heavy metals in the public areas of industrial parks warrant significant attention,and the identification of priority control sources for risk management is essential for the prevention of soil pollution in these industrial settings.

关 键 词：工业园 公共区域 源解析 土壤污染 空间分析 

分 类 号：X825[环境科学与工程—环境工程]