白银东大沟水体和底泥中重金属污染评价
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张钊熔, 段星星, 夏明哲
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Contamination situation and evaluation of heavy metal pollution in water and sediments of Dongdagou area, Baiyin
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Zhao-Rong ZHANG, Xing-Xing DUAN, Ming-Zhe XIA
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表4 东大沟水体中各重金属单项污染指数与综合指数
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Table 4 Water quality evaluation results of Nemerow pollution index
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样号 | pH | Cu | Pb | Zn | Cd | As | Hg | 综合污染指数 | S1 | 4.67 | 25.96 | 2.39 | 30.42 | 117.24 | 0.07 | — | 86.6 | S2 | 4.19 | 30.63 | 8.60 | 38.68 | 172.66 | 0.03 | — | 127.1 | S3 | 6.78 | 0.03 | 0.05 | 1.24 | 21.44 | 0.01 | — | 15.5 | S5 | 7.00 | 0.12 | 5.91 | 3.42 | 43.10 | 0.12 | 0.43 | 31.1 | S6 | 7.35 | 0.35 | 20.38 | 3.22 | 94.42 | 0.52 | 2.79 | 68.3 | S12 | 7.59 | 0.02 | 0.99 | 1.23 | 31.06 | 0.04 | 0.45 | 22.3 | S14 | 7.65 | 0.02 | 0.76 | 0.96 | 24.84 | 0.19 | 0.17 | 17.8 | S15 | 8.10 | 0.05 | 0.57 | 0.17 | 4.50 | 1.05 | 0.27 | 3.3 | S16 | 8.09 | 0.08 | 1.14 | 0.19 | 4.11 | 1.25 | 0.58 | 3.0 | S17 | 7.52 | 0.26 | 1.39 | 0.35 | 5.14 | 0.98 | 0.26 | 3.8 | S18 | 7.29 | 0.02 | 0.05 | 0.04 | 0.84 | 1.52 | 0.10 | 1.1 | S20 | 7.61 | 0.01 | 0.01 | 0.15 | 0.06 | 0.01 | 0.08 | 0.1 |
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