| 元素 | As | Cd | Cr | Cu | Hg | Ni | Pb | Zn | 
| As | 1.00 | 0.13 | 0.33 | 0.28 | 0.03 | 0.37 | 0.31 | 0.35 | 
| Cd | 1.00 | 0.20 | 0.41 | 0.10 | 0.20 | 0.20 | 0.37 | |
| Cr | 1.00 | 0.35 | 0.13 | 0.96 | 0.32 | 0.52 | ||
| Cu | 1.00 | 0.16 | 0.31 | 0.34 | 0.77 | |||
| Hg | 1.00 | 0.10 | 0.34 | 0.17 | ||||
| Ni | 1.00 | 0.29 | 0.51 | |||||
| Pb | 1.00 | 0.42 | ||||||
| Zn | 1.00 |