土壤环境影响评价中污染物浓度单位换算公式的推导及应用  

Derivation and Application of the Pollutant Concentration Unit Conversion Formula in Soil Environmental Impact Assessment

作　　者：刘玉兰 程莉蓉[2] LIU Yulan;CHENG Lirong(Dalian Eco-Environmental Affairs Service Center,Dalian 116021,China;Key Laboratory of Water and Sediment Sciences,Beijng Normal University,Beijing 100875,China)

机构地区：[1]大连市生态环境事务服务中心,辽宁大连116021 [2]北京师范大学水科学研究院,北京100875

出　　处：《环境影响评价》2021年第5期88-91,共4页Environmental Impact Assessment

摘　　要：在土壤环境影响评价中,预测污染物浓度的计算结果与土壤环境质量相关标准中控制值的表征单位不同,给建设项目土壤环境影响评价工作带来不便。本文基于一定的假设条件,通过引入土壤干容重、土壤孔隙度及土壤水饱和度3个参数,推导出土壤污染物质量浓度与水溶液中污染物体积浓度之间的换算公式,并选取某有色金属冶炼项目作为土壤环境影响评价案例,对公式进行了可操作性应用,进一步明确了公式的适用条件。In the soil environmental impact assessment,the pollutant concentration unit of the predicting calculation result is different from that of the control value in the relevant standards of soil environmental quality,which brings inconvenience to the environmental impact assessment of soil pollution in construction projects.Based on specific assumptions,we derives a conversion formula of soil pollutant mass concentration and aqueous pollutant volume concentration by introducing three parameters of soil dry bulk density,soil porosity and soil water saturation.We select the soil environmental impact assessment case of a nonferrous metal smelting project to verify the application of this conversion formula.The applicable conditions of the formula were further clarified.

关 键 词：环境影响评价 土壤污染物 单位换算 孔隙度 土壤干容重 土壤水饱和度 

分 类 号：X825[环境科学与工程—环境工程]