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Spearman correlations of minor elements detected at more than half of the sample sites. Statistical significance (P<0.05) is shown in bold.
| V | Cr | Co | Cu | Zn | Sn | Pb | |
|---|---|---|---|---|---|---|---|
| V | 1.00 | ||||||
| Cr | 0.41 | 1.00 | |||||
| Co | −0.22 | −0.34 | 1.00 | ||||
| Cu | 0.38 | 0.49 | −0.31 | 1.00 | |||
| Zn | 0.22 | 0.50 | −0.12 | 0.64 | 1.00 | ||
| Sn | 0.48 | 0.11 | 0.16 | 0.26 | 0.27 | 1.00 | |
| Pb | 0.25 | −0.06 | −0.09 | 0.35 | 0.42 | 0.16 | 1.00 |
