SmogRank / Countries / Nigeria / May 2026

Most polluted cities in Nigeria, May 2026

2 cities in Nigeria ranked by their average PM2.5 over the 31 days. Worst: Lagos at 27.6 µg/m³, #120 of 2,243 cities in the world. Cleanest: Ibadan at 27.2. A city needs measurements on 70% of the days to be ranked.

  1. 1Lagoslow-cost sensorsLagos
    27.6
  2. 2Ibadanlow-cost sensorsOyo State
    27.2
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, May 2026 · Nigeria now