Worst air pollution Brasília, today and tomorrow
Today (9 August): Air quality in Brasília is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 AM (O3: 21.2/100).
Tomorrow (10 August 2026): Air quality in Brasília is fair. PM2.5 increases to fair; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 6:00 AM (PM2.5: 23.3/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Brasília's air quality benefits from its elevated Central Plateau position at 1,172 metres, with the open cerrado landscape and consistent trade winds providing generally good background dispersal for Brazil's planned capital. Vehicle emissions from the EPGU and EPDB expressway corridors are the primary local sources, while dry season burning from surrounding Cerrado agricultural and conservation land between June and September generates severe PM2.5 episodes that represent Brasília's primary seasonal air quality challenge throughout the burning season.
Today - 9 August | Pollution peaks at 04:00
AQI:
Fair
21.2/100
PM2.5 (fine particles):
Good
18.5/100
PM10 (coarse particles):
Good
8.4/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
21.2/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
2.9/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 06:00
AQI:
Fair
23.3/100
PM2.5 (fine particles):
Fair
23.3/100
PM10 (coarse particles):
Good
10.6/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
19.9/100
SO2 (sulfur dioxide):
Good
0.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
4.3/100
Pollen forecast in Brasília
View pollen forecastFrequently Asked Questions
Is air quality bad in Brasília right now?
On 9 August 2026, overall air quality in Brasília is fair. AQI is the main air quality indicator at 21.2/100. Pollution peaks around 4:00 AM (O3: 21.2/100).
Will air quality be worse tomorrow in Brasília?
On 10 August 2026, air quality conditions in Brasília will be similar to today, with AQI forecast at fair at 23.3/100. Pollution peaks around 6:00 AM (PM2.5: 23.3/100).
When is air pollution at its worst in Brasília?
Air quality dips in Brasília mostly track native cerrado trees and eucalyptus pollen peaks and periods of vehicle emissions from the EPGU and EPDB expressway corridors; beyond that, the area's natural ventilation keeps air quality consistently favourable through the rest of the year.
Are air quality levels in Brasília based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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