| Pollutant | 24-hour ppm (ug/m3) | Annual ppm (mg/m3) | ||
| WHO | NAAQS | WHO | NAAQS | |
| CO | 9 (FMEnv) | 9 (50 - OSHA), (35 - NIOSH), 25 - ACGIH | 9 (FMEnv) | 9 |
| SO2 | 0.02 | 0.075 | 0.02 | 0.075 |
| NO2 | 0.2 | 0.1 | 0.2 | 0.053 |