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Correlation matrix of heavy metals in soil.
| Variables | Hg | Pb | Zn | Ag | Cr | Cd |
|---|---|---|---|---|---|---|
| Hg | 1 | |||||
| Pb | 0.960 | 1 | ||||
| Zn | 0.979 | 0.944 | 1 | |||
| Ag | 0.992 | 0.976 | 0.956 | 1 | ||
| Cr | −0.573 | 0.538 | 0.711 | 0.546 | 1 | |
| Cd | 0.984 | 0.981 | 0.984 | 0.988 | 0.637 | 1 |
Correlation coefficient significant at 95% confidence interval.
