地质累积指数法在义马矿区土壤重金属及氟污染评价中的应用

利用多目标地球化学调查方法,在野外调查、大面积系统性采集土壤样品、测成分析、数理统计、查清矿区土壤环境背景值的基础上,应用地质累积指数法对义马矿区成土过程相同的义马和陕渑煤田土壤中Cr、As、Hg、Pb、Cd和F的污染进行评价,并与采用国家<土壤环境质量标准>为基准的标准对比评价结果进行对比研究.结果表明:矿区土壤中A...

Application of Indez of Geoaccumulation of Pollution of Heavy Metals and Fluorine in Yima Mining Areas

Using multi-objective geochemistry investigation methods,index of geoaccumulation is used to evaluate the soil pollution of six elements contained Cr,As,Hg,Pb,Cd and F in Yima and Shanmian mine coal field areas based on the field investigation,the systematic collection of soil samples in large areas,measurement analysis,mathematical statistics,and checking up the soil environment background values in mining areas.A comparison of evaluation result is made on the basis of the index of geoaccumulation and the state soil environment quality standard.The results show that:the soil pollution of As,Cr,Pb in mine areas are light,95 % soil is free from contamination.But the soil pollution of Hg,Cd are heavy.The cause lies in the fact that the pesticide and fertilizer are accumulated used.But soil is none contaminated By F.In all in,the contamination levels in mine areas are from non to moderate.And the soil contamination is basically unrelated to the mine exploitation.