摘要
以长江经济带某沿江化工企业腾退地块为例,开展了典型沿江腾退地块土壤与地下水的人体健康风险评估和污染现状评价。结果表明:场地土壤污染相对较轻,无关注污染物;地下水存在一定程度的污染,关注污染物包括苯、甲苯、1,2-二氯乙烷和C10-C40;地块土壤和地下水中污染物风险值均不超过可接受风险水平,但苯的致癌风险和非致癌危害商贡献率最大;对于企业历史生产区域,存在污染物超标但风险可接受,长期监测和回顾性风险评估是地块未来风险管控的重点。
This study focuses on the human health risk assessment and pollution status evaluation of typical relocated chemical plants along the Yangtze River Economic Belt.A case study of a chemical company s relocated site is conducted in this research.The results show that the soil pollution at the site is relatively light and without any concerning pollutants,while groundwater contains a certain degree of pollution with pollutants including benzene,toluene,1,2-dichloroethane and C10-C40.The risk values of pollutants in soil and groundwater are all within acceptable levels,but benzene has the highest contribution to both cancer risk and non-cancer harm.The historical production areas of the company have pollutants exceeding the standards,but the risk is still acceptable.Long-term monitoring and retrospective risk assessment are the key focuses in future risk control of the site.
作者
周美春
任富天
马晨
彭倩
刘翠
王超
黄蕾
ZHOU Mei-chun;REN Fu-tian;MA Chen;PENG Qian;LIU Cui;WANG Chao;HUANG Lei(Jiangsu Zhongwu Environmental Protection Industry Development Co.,Ltd.,Changzhou 213200,China;State Key Laboratory of Pollution Control&Resource Reuse,School of the Environment,Nanjing University,Nanjing 210023,China)
出处
《环境生态学》
2023年第7期33-38,共6页
Environmental Ecology
基金
国家重点研发计划(2019YFC1804001,2020YFC1807502)资助。
关键词
化工污染场地
腾退地块
土壤与地下水
风险评估
Chemical polluted site
retired land block
soil and groundwater
risk assessment
