| 水质指标 | 指标浓度(mg/L) | ||||
| 铜 | ≤0.01 | ≤0.2575 | ≤0.505 | ≤0.7525 | ≤1 |
| 锌 | ≤0.05 | ≤0.5375 | ≤1.025 | ≤1.5125 | ≤2 |
| 硒 | ≤0.01 | ≤0.0125 | ≤0.015 | ≤0.0175 | ≤0.02 |
| 砷 | ≤0.05 | ≤0.0625 | ≤0.075 | ≤0.0875 | ≤0.1 |
| 汞 | ≤0.0005 | ≤0.000625 | ≤0.00075 | ≤0.000875 | ≤0.001 |
| 镉 | ≤0.001 | ≤0.00325 | ≤0.0055 | ≤0.00775 | ≤0.01 |
| 铬(六价) | ≤0.01 | ≤0.0325 | ≤0.055 | ≤0.0775 | ≤0.1 |
| 铅 | ≤0.01 | ≤0.0325 | ≤0.055 | ≤0.0775 | ≤0.1 |
| 赋分 | 100 | 75 | 50 | 25 | 0 |