What is the air quality in Onitsha?

Onitsha, Nigeria has an annual US AQI of 104 (Polluted) and average PM2.5 of 37.8 µg/m³, ranking #4779 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Onitsha?

September is typically the cleanest month (AQI 76) and January the most polluted (AQI 161).

PM2.5: 1998–2024 (satellite). From satellite data, because no government monitor covers the city. Full sources are on the methodology page.

Global rank	City	Continent	AQI	PM2.5
4779	Onitsha, Nigeria	Africa & Middle East	AQI 104	PM2.5 37.8 µg/m³