| Pollutant | Duration of exposure | WHO Guidelines |
| PM2.5 | 1 year | 35 μg|m3 |
| PM10 | 1 year | 20 μg|m3 |
| NO2 | 1 year | 40 μg|m3 |
| O3 | 8 hours | 100 μg|m3 |
| SO2 | 24 hours | 20 μg|m3 |