What is the air quality in Niterói?

Niterói, Brazil has an annual US AQI of 65 (Polluted) and average PM2.5 of 16.3 µg/m³, ranking #2722 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Niterói?

November is typically the cleanest month (AQI 61) and June the most polluted (AQI 69).

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
2722	Niterói, Brazil	South America	AQI 65	PM2.5 16.3 µg/m³