Table 4.
Air quality index of study sites
| Location | AQI (SO2) | AQI (NO2) | AQI (CO) | PM2.5 |
|---|---|---|---|---|
| Oluwotiti, Alabata | Extremely hazardous | Not applicable | Extremely hazardous | Extremely hazardous |
| Adaako, Alabata | 7.8 (good) | Not applicable | 12.4 (good) | 356.4 (hazardous) |
| Raka, Alabata | Extremely hazardous | Not applicable | Extremely hazardous | Extremely hazardous |
| Ikugba, Alabata | Extremely hazardous | Not applicable | Extremely hazardous | Extremely hazardous |
| Ayogun, Alabata | Extremely hazardous | Not applicable | Extremely hazardous | Extremely hazardous |
| Fojubaye, Alabata | 25 (good) | Not applicable | 166.2 (unhealthy) | 172.8 (unhealthy) |
| Igboyange, Igboora | Extremely hazardous | Not applicable | Extremely hazardous | Extremely hazardous |
| Apata, Igboora | 343.3 hazardous | Not applicable | Extremely hazardous | Extremely hazardous |
| Irepodun, Igboora | Extremely hazardous | 331.5 (hazardous) | Extremely hazardous | Extremely hazardous |
| Iyana Babanla, Igboora | 298.7 (very unhealthy) | 334.0 (hazardous) | Extremely hazardous | Extremely hazardous |