湖北红安县生态地质调查土壤重金属分布特征及生态风险评价

居字龙, 秦志军, 万翔, 袁航, 张小波, 王登

Accessing the distribution and ecological risks of heavy metals in soil in Hong’an County, Hubei Province through ecological geological surveys

JU Zi-Long, QIN Zhi-Jun, Wan Xiang, YUAN Hang, ZHANG Xiao-Bo, WANG Deng

表3 垂直剖面土壤重金属含量统计

Table 3 Statistics of soil heavy metal content in vertical profile

项目 Cu Pb Zn Cr Ni Cd As Hg 最小值/10-6 9.35 8.27 41.70 7.25 4.48 0.03 2.26 0.004 最大值/10-6 90.40 52.80 234.00 122.00 69.60 0.71 43.30 0.13 平均值/10-6 32.87 22.73 97.58 53.82 27.07 0.22 13.46 0.04 变异系数/% 81.27 48.10 61.91 60.41 73.11 101.51 78.07 78.43 湖北省背景值/10-6 30.70 26.70 83.60 86.00 26.90 0.17 12.30 0.08 背景值倍数 1.07 0.85 1.17 0.63 1.01 1.32 1.09 0.50