中文摘要：

以江苏某有机化工污染场地为例,采用美国RBCA（risk based corrective action）风险评估软件,并依据我国《污染场地风险评估技术导则》（征求意见稿）对模型中的参数进行了本土化设定,开展了典型有机化工类场地土壤与地下水的人体健康与水环境风险评估.结果表明：研究场地土壤污染相对较轻,局部区域存在风险或危害,最大值分别为5.44× 10-5和54;地下水污染相对严重,有6个点位存在不同污染物的风险或危害商超标,其中,],2-二氯乙烷的最大致癌风险高达0.174,氯苯的最大非致癌危害商高达20 586.与保护人体健康的修复目标值相比,保护水环境的值要更为保守.由此,仅基于健康风险的修复仍然可能存在水环境风险,应当予以重视.

英文摘要：

Human health and environmental risk assessment of soil and groundwater was undertaken for a typical organic chemical site in Jiangsu Province.The risk assessment was conducted using RBCA （Risk Based Corrective Action） model that was modified to fully comply with Chinese Technical Guidelines for Risk Assessment of Contaminated Sites （draft）.It was found that,soil was contaminated,part of it presented risk or harm,the maximum values were 5.44×10-5 and 54 respectively.Groundwater contamination was relatively severe,six sampling points presented risk or harm,the greatest risk of 1,2-dichloroethane was 0.174,the greatest hazard quotient of chlorobenzene was 20 568.Remediation targets aimed at protecting water environment were relatively conservative than that of protecting human health.Therefore,we should pay attention that remediation that only aims at protecting human health may still have risk of water environment.