| S/N | Pollutants | Averaging Period | Maximum Concentration (µg/m3) | ||
| NAAQS | World Bank | WHO | |||
| 1 | CO | 24-Hr | 11,400 | - | - |
| 2 | NOx | 24-Hr | 75 | 150 | - |
| 3 | SO2 | 24-Hr | 26 | - | 20 |
| 4 | PM | 24-Hr | 250 | 80 | 50 |
| 5 | VOC | 24-Hr | 6000 | - | - |