淮南大通煤矿废弃地土壤重金属空间分布及变异特征

孙贤斌, 李玉成

The Spatial Distribution of Soil Heavy Metals and Variation Characteristics of Datong Abandoned Coal Mine Area in Huainan City

Xian-bin SUN, Yu-cheng LI

表1 大通煤矿废弃地土壤重金属含量

Table 1 Heavy metal content in soils in Datong abandoned coal mine area

土层(cm) Hg(mg/kg) Cd(mg/kg) Cr(g/kg) Pb(g/kg) Cu(g/kg) 0~10 20~30 0~10 20~30 0~10 20~30 0~10 20~30 0~10 20~30 最大值 0.850 0.309 3.240 3.581 0.554 0.605 0.218 0.215 0.795 0.123 最小值 0.581 0.497 0.712 0.770 0.166 0.183 0.825 0.635 0.165 0.970 平均值 0.253 0.327 1.971 2.178 0.340 0.394 0.150 0.141 0.048 0.067 背景值 0.023 0.010 0.060 0.060 0.065 0.083 0.030 0.030 0.024 0.030 平均污染指数Pi 11.000 32.700 32.850 36.300 5.231 4.747 5.000 4.700 2.000 2.233