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
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居字龙, 秦志军, 万翔, 袁航, 张小波, 王登
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Accessing the distribution and ecological risks of heavy metals in soil in Hong’an County, Hubei Province through ecological geological surveys
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JU Zi-Long, QIN Zhi-Jun, Wan Xiang, YUAN Hang, ZHANG Xiao-Bo, WANG Deng
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表2 调查区土壤重金属含量超标情况统计
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Table 2 Statistics of heavy metals exceeding the standard in the survey area
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| 重金属 | 以湖北省土壤背景值为参考 | 以GB15618—2018为参考 | | 超标个数 | 超标率 | 单因子污染指数
最小值~最大值(平均值) | 超标个数 | 超标率 | 单因子污染指数
最小值~最大值(平均值) | | Cu | 107 | 14.59% | 1~5.21/(1.37) | 10 | 1.48% | 1.07~3.2/(1.43) | | Pb | 79 | 10.81% | 1~8.31/(1.26) | 1 | 0.14% | 3.1 | | Zn | 170 | 23.11% | 1~13.77/(1.28) | 1 | 0.27% | 1.41~5.75/(3.58) | | Cr | 88 | 11.89% | 1~2.95/(1.47) | 19 | 2.57% | 1~1.69/(1.26) | | Ni | 158 | 21.49% | 1~9.03/(1.6) | 15 | 2.16% | 1.04~4.05/(1.42) | | Cd | 107 | 14.59% | 1~191.17/(2.75) | 14 | 2.03% | 1~9.33/(8.66) | | As | 32 | 4.46% | 1~6.17/(1.63) | 1 | 0.27% | 1.02~1.9/(1.46) | | Hg | 65 | 8.78% | 1~7.68/(1.57) | 0 | 0 | |
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