场地参数对地下水污染物健康风险评价影响的初步研究

Preliminary study on the influence of site parameters on the health risk assessment of groundwater

通过单变量分析,考察含水率、容重和地下水埋深对挥发性有机污染物风险控制值的影响,结果表明土壤含水率、土壤容重和地下水埋深与风险控制值为正相关关系,土壤含水率和容重在超过某一阈值后,微小变化会使风险控制值产生较大的波动,因此建议在实际调查过程中提高水文地质勘察取样和测试质量,获得高代表性的数据,减少风险控制值的不确定性。

Through univariate analysis,the effects of soil water content,soil bulk density and depth of groundwater on the risk control values of volatile organic pollutants were investigated.Soil water content,soil bulk density and depth of groundwater were positively correlated with risk control values.After the soil moisture content and bulk density exceed a certain threshold,small changes will cause large fluctuations in the risk control value.It is recommended to improve the sampling and testing quality of hydrogeological surveys in the site investigation process to obtain high representative data and reduce uncertainty in risk control values.