摘要
以某染化厂污染地块中半挥发性有机物的环境风险评估为例,结合土壤环境调查检测数据和地块现场情况,建立地块模型,确定地块特征参数和受体暴露参数,分析广场用地暴露情景下表层土壤中半挥发性有机污染物苯并(a)蒽、苯并(a)芘、苯并(b)荧蒽、茚并(1,2,3-cd)芘的暴露途径并进行健康风险评估。结果显示,广场用地情景下苯并(a)芘的致癌风险不可接受,危害指数尚可接受,其他指标致癌风险和非致癌危害商值均为可接受水平。计算风险控制值,对比国内外相关标准值,提出修复目标建议值,圈定了管控范围。
By taking the environmental risk assessment of semi-volatile organic compounds in a contaminated plot of a dyeing chemical plant as an example,combining with the soil environmental investigation,detection data and conditions of the plot,the plot model was established to determine the plot characteristics parameters and receptor exposure parameters in order to analyze the exposure pathways of semi-volatile organic pollutants benzo(a)anthracene,benzo(a)pyrene,benzo(b)fluoranthene and inhydrin(1,2,3-cd)pyrene in surface soil under the exposure scenario of square land and to assess the health risks.The results show that the carcinogenic risk of benzo(a)pyrene is unacceptable and the hazard index is acceptable under the square site scenario.The quotient values of carcinogenic risk and non-carcinogenic hazard of other indicators are acceptable.This paper calculates the risk control value,compares the relevant standard value at home and abroad,puts forward the recommended value of restoration target,and delineates the control scope.
作者
杨贵芳
刘强
王晨
张頔
胡荣
Yang Guifang;Liu Qiang;Wang Chen;Zhang Di;Hu Rong(Institute of Geochemical Exploration and Marine Geological Survey,Nanjing 210007,Jiangsu,China;Jiangsu East China Geological Engineering Co.,Ltd.,Nanjing 210007,Jiangsu,China;Key Laboratory of Coastal Salt Marsh Ecosystems and Resources,Ministry of Natural Resources,Nanjing 210007,Jiangsu,China)
出处
《地质学刊》
CAS
2022年第4期430-435,共6页
Journal of Geology
基金
江苏省自然资源科技计划项目“2022044宿迁国土空间生态保护修复及评价指标体系研究”(苏自然资函〔2022〕765号)
江苏省省级矿地融合试点项目(苏财资环[2021]45号)。
关键词
污染地块
半挥发性有机污染物
健康风险评估
管控范围
contaminated plot
semi-volatile organic pollutant
health risk assessment
control scope
