SmogRank / Countries / Nigeria / 2026
Most polluted cities in Nigeria, 2026
1 city in Nigeria ranked by their average PM2.5 so far (273 of 365 days); 1 above the WHO annual guideline (5.0 µg/m³). Worst: Lagos at 32.0 µg/m³, #112 of 2,181 cities in the world. A city needs measurements on 70% of the days to be ranked.
- 1Lagoslow-cost sensorsLagos 32.06.4×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+