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| Element | R | P value (two-tailed) | P value (one-tailed) |
|---|---|---|---|
| Co | -0.260 | 6.30x10-3 | 3.20x10-3 |
| Cr | -0.242 | 1.11x10-2 | 5.61x10-3 |
| Cu | -0.349 | 2.00x10-4 | 1.00x10-4 |
| Mn | -0.306 | 1.35x10-3 | 6.75x10-4 |
| Ni | -0.196 | n.s. | n.s. |
| Pb | -0.230 | 1.16x10-2 | 8.00x10-3 |
| U | -0.142 | n.s. | n.s. |
| Zn | -0.332 | 4.20x10-4 | 2.10x10-4 |
n.s.: not statistically significant
