SmogRank / World / Nigeria / May 2023
Most polluted cities in Nigeria, May 2023
2 cities in Nigeria ranked by their average PM2.5 over the 31 days. Worst: Lagos at 14.1 µg/m³, #132 of 1,305 cities in the world. Cleanest: Abuja at 7.7. A city needs measurements on 70% of the days to be ranked.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
All cities in the world, May 2023 · Nigeria now
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SmogRank, most polluted cities in Nigeria, PM2.5, May 2023, smogrank.com/ng/history/2023-05 (accessed 3 Oct 2026).
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