Pollutant | Averaging time | recommended level µg/m3 (ppm*) | Level of pollution obtained in this study (ppm) |
PM2.5 | Annual | 5 | - |
24-hour | 15 | - | |
CO | 24-hour | 4000 (3.49) | - |
8-hour | 10,000 (8.73) | - | |
1-hour | 35,000 (30.55) | 10.83 - 55.11 | |
15-minute | 100,000 (87.3) | 119.10 - 362.72 |