| Heavy metal | Area | ||
| Residential area | Controlled area | Industrial area | |
| Mean concentration (µg/m3) | |||
| Lead | 0.066 ± 0.064 | 0.336 ± 0.354 | 1.102 ± 0.592 |
| Cadmium | 0.007 ± 0.013 | 0.032 ± 0.058 | 0.002 ± 0.004 |
| Manganese | 0.785 ± 0.630 | 0.347 ± 0.284 | 0.381 ± 0.500 |