What is the air quality in Sobral?

Sobral, Brazil has an annual US AQI of 41 (Reasonable) and average PM2.5 of 7.7 µg/m³, ranking #305 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Sobral?

July is typically the cleanest month (AQI 29) and March the most polluted (AQI 52).

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
305	Sobral, Brazil	South America	AQI 41	PM2.5 7.7 µg/m³