摘要
为研究需现场测定的地块特征参数对土壤污染风险的影响,采用污染风险评估模型进行研究分析。结果表明:表层污染土壤层厚度、土壤有机质含量、地下水埋深、污染源区宽度等与风险控制值呈正相关,空气中可吸入颗粒物含量、下层污染土壤层厚度、污染源区面积等呈负相关。仅PM_(10)对除汞之外的重金属和甲基汞的土壤污染风险有一定影响;土壤有机质含量对有机物的土壤污染风险影响程度最强;污染源区面积对氰化物的地下水非致癌风险影响程度最强;地下水埋对汞和有机物的地下水污染风险深影响程度最强。
To study the impact of site-specific parameters measured onsite on soil contamination risk,the risk assessment models were utilized for analysis.The results show that the thickness of surface contaminated soil,soil organic matter content,groundwater depth,width of source-zone are in positive correlations with risk-based intervention levels,whereas content of inhalable particulates in ambient air,thickness of subsurface contaminated soil,area of source-zone are in negative correlations.PM_(10)is the only parameter impacting the soil contamination risk of methyl mercury and metals except mercury.Soil organic matter content exhibits the highest sensitivity on soil contamination risk of organic contaminants.Area of source-zone exhibits the highest sensitivity on groundwater non-carcinogenic risk of cyanide.Groundwater depth exhibits the highest sensitivity on groundwater contamination risk of mercury and organic contaminants.
作者
陈晨
CHEN Chen(Shanghai Municipal Engineering Design Institute<Group>Co.,Ltd.,Shanghai 200092,China)
出处
《环境科技》
2022年第6期25-30,共6页
Environmental Science and Technology
基金
上海市生态环境局科研项目(沪环科[2022]第16号).
关键词
地块特征参数
敏感性分析
贡献率
风险控制值
Site-specific parameter
Sensitivity analysis
Contribution rate
Risk-based intervention levels
