海河流域沉积物重金属形态分布特征及生态风险评估
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李生清
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Speciation and distribution of heavy metals in sediments in Haihe River Basin and their effects on ecological risk assessment
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LI Sheng-Qing
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表2 沉积物40 cm深度处样品重金属含量测定结果
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Table 2 Results of determination of heavy metal content in samples at 40 cm of the sediment
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采样点
编号 | 重金属元素含量/10-6 | | 铬 | 镉 | 砷 | 铅 | 汞 | | D1 | 63.5 | 0.36 | 192.3 | 112.3 | 0.36 | | D2 | 72.3 | 0.58 | 132.4 | 103.6 | 0.34 | | D3 | 51.6 | 1.22 | 241.5 | 122.4 | 0.51 | | D4 | 77.3 | 0.49 | 203.6 | 159.5 | 0.29 | | D5 | 108.3 | 0.68 | 125.6 | 114.3 | 0.59 | | D6 | 54.3 | 0.91 | 144.7 | 126.3 | 0.67 | | D7 | 166.8 | 1.32 | 156.8 | 142.8 | 0.84 | | D8 | 553.5 | 0.97 | 165.4 | 114.7 | 0.61 | | D9 | 221.3 | 0.42 | 177.3 | 135.0 | 0.55 | | 平均值 | 152.1 | 0.77 | 171.1 | 125.7 | 0.53 | | 背景值[12] | 60 | 0.5 | 15 | 25 | 0.25 |
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