What is the air quality in Rio das Ostras?

Rio das Ostras, Brazil has an annual US AQI of 58 (Reasonable) and average PM2.5 of 12.7 µg/m³, ranking #1736 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Rio das Ostras?

January is typically the cleanest month (AQI 55) and June the most polluted (AQI 62).

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
1736	Rio das Ostras, Brazil	South America	AQI 58	PM2.5 12.7 µg/m³