| Element | Factor | |
| 1 | 2 | |
| BC | −0.009 | 0.880 |
| Al | 0.827 | 0.461 |
| S | 0.828 | −0.061 |
| Cl | 0.874 | 0.405 |
| K | 0.897 | 0.288 |
| Ca | 0.820 | 0.018 |
| Cr | 0.846 | 0.439 |
| Mn | 0.792 | 0.303 |
| Fe | 0.844 | 0.417 |
| Ni | 0.838 | −0.080 |
| Cu | 0.892 | 0.192 |
| Zn | 0.867 | 0.049 |
| Zr | 0.820 | 0.465 |
| Pb | 0.880 | 0.240 |
| % of variance | 66.85 | 14.42 |
| Cumulative % | 66.85 | 81.27 |
| Source | Industrial activities and Non−exhaust emissions | Exhaust emissions |