Air Quality Index (AQI) in Brazil 🇧🇷
Live Air Quality Index (AQI) and PM2.5 Levels in Brazil
Currently, the Air Quality Index (AQI) in Brasilia, the capital of Brazil, is measured at a score of 55. According to the US EPA health standard, this air quality rating is categorized as Good. The current atmosphere in Brasilia is influenced by a PM2.5 (fine particulate matter) concentration of 11.4 µg/m³ and PM10 levels recorded at 11.5 µg/m³. Monitoring of gaseous pollutants shows Nitrogen Dioxide (NO2) at 36.3 µg/m³.
Beyond the primary urban hubs, atmospheric conditions and smog levels fluctuate across Brazil based on industrial output, traffic density, and local weather patterns. Real-time pollution data and respiratory health alerts are also being actively monitored in cities like São Paulo, Rio de Janeiro, Belo Horizonte, Salvador and Fortaleza. Tracking these air quality metrics is essential for residents nationwide to manage outdoor exposure and maintain respiratory safety during periods of increased particulate concentration.
Air Quality Snapshot: Brazil Right Now
Across 100 monitored cities in Brazil, live air quality currently ranges from a low of 10 AQI in Ponta Grossa (the cleanest air right now) to a high of 168 AQI in Ribeirão Preto (the most polluted). By US EPA health band, the nationwide distribution stands at 35 Good, 63 Moderate, 1 Unhealthy for Sensitive Groups, 1 Unhealthy. The average fine-particulate (PM2.5) concentration across these cities is 12.0 µg/m³ — approximately 2.4 times the World Health Organization (WHO) annual air quality guideline of 5 µg/m³.
Brazil Air Quality: Major Cities Index
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Pollution Monitor & AQI Forecast: Brazil Regions
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* Air Quality Index (AQI) data for Brazil is calculated using the US EPA standard. Information is processed from multiple monitoring stations detecting PM2.5, PM10, and gaseous pollutants to ensure accuracy for respiratory health planning.
What Today's Readings Mean in Brazil
The median reading across 100 monitored cities is 53.0 AQI. The national spread is 158 points, from 10 in Ponta Grossa to 168 in Ribeirão Preto. Average PM2.5 is 12.0 µg/m³ (2.4× the WHO annual guideline).
At least one monitored location is Unhealthy. Reduce prolonged outdoor exertion and check the city reading before planning exercise or travel.
Air Quality in Brazil — FAQ
Common questions about AQI levels, pollutants, and data sources for Brazil.