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The correlation coefficient between heavy metals and PAH contents in aerial parts and roots of plants and soil (P < 0.005)
| Pb | Cd | Cu | Zn | Hg | Fe | The sum of PAHs | |
|---|---|---|---|---|---|---|---|
| Soil vs AP | −0.5 | −0.5 | 0.8 | −0.9 | 0.5 | 0.9 | 0.3 |
| Soil vs R | 0.8 | −0.2 | 0.8 | 0.4 | 0.6 | 0.9 | −0.1 |
| AP vs R | −0.7 | 0.8 | 0.9 | −0.5 | 0.9 | 0.8 | 0.3 |
