Pb | Cd | As | Zn | Ni | Cu | Hg | |
Pb | 1 | ||||||
Cd | 0.402* | 1 | |||||
As | −0.096 | 0.476** | 1 | ||||
Zn | 0.619** | 0.709** | 0.330 | 1 | |||
Ni | −0.038 | 0.395* | 0.278 | 0.319 | 1 | ||
Cu | 0.139 | 0.200 | 0.256 | 0.158 | 0.457** | 1 | |
Hg | −0.029 | 0.131 | 0.511** | 0.353* | −0.110 | 0.062 | 1 |