| 指数 | 元素 | 不同级别污染样点的比例/% | |||
| 无污染 | 轻度污染 | 中度污染 | 重度污染 | ||
| Pi | Cu | 100 | 0 | 0 | 0 |
| Zn | 0 | 23.1 | 69.2 | 7.7 | |
| Ni | 78.5 | 21.5 | 0 | 0 | |
| Cr | 76.9 | 24.1 | 0 | 0 | |
| Pb | 0 | 7.6 | 66.2 | 26.2 | |
| Hg | 91.8 | 0 | 0 | 9.2 | |
| Co | 100 | 0 | 0 | 0 | |