Brazil air quality today The AQI right now, city by city

Right now the 304 cities Airleaf measures in Brazil average AQI 33 (good). The worst air is in Manaus, at AQI 165, and the cleanest in Caxias do Sul, at AQI 6. At ground stations alone, which measure rather than estimate, the average is AQI 35 across 60 cities. 1% of the 304 measured cities are over AQI 100 today, where the air stops being fine for sensitive groups, and 82% have Good air.

Manaus, at AQI 165 (Unhealthy) on the US EPA index. Everyone should limit long outdoor exertion; sensitive groups more so.

Caxias do Sul, at AQI 6 (Good). Both lists rank current readings, from ground stations wherever Brazil has at least three cities with one.

It depends on the city. 249 cities are Good, 52 cities are Moderate, 1 city is Unhealthy for sensitive groups, 2 cities are Unhealthy. At the national average of AQI 33: Air quality is satisfactory for everyone.

About 76.6 million ha from 2001 to 2025, 15% of the forest it had in 2000, from the University of Maryland's yearly satellite maps of forest loss. 56.2 million ha of it was cleared for good, for farms, mines or towns.

Petrópolis, with 73.8% tree cover within 2 km of its center, measured from Sentinel-2 satellite images.

Each city's reading is the US EPA air quality index, from ground monitoring stations where one has reported recently nearby, and from the CAMS atmospheric model elsewhere; each city's report says which. Tree cover is measured over the same 2 km radius in every city, so the cities compare like for like.