Worst air pollution Mairiporã, today and tomorrow
Today (9 August): Air quality in Mairiporã is fair. AQI and PM2.5 are fair; PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (PM2.5: 23.8/100).
Tomorrow (10 August 2026): Air quality in Mairiporã is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (PM2.5: 33.0/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Mairiporã's air quality benefits from its elevated position in the Serra da Cantareira at 900 metres north of greater São Paulo, with the surrounding Serra da Cantareira State Park providing a substantial forested clean-air buffer. Vehicle emissions from the SP-360 Fernão Dias highway are the primary local concern, while the elevated mountain setting and extensive Atlantic Forest cover generally maintain better conditions than the São Paulo metropolitan average.
Today - 9 August | Pollution peaks at 17:00
AQI:
Fair
23.8/100
PM2.5 (fine particles):
Fair
23.8/100
PM10 (coarse particles):
Good
11.2/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
20.0/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
3.0/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 08:00
AQI:
Fair
33.0/100
PM2.5 (fine particles):
Fair
33.0/100
PM10 (coarse particles):
Good
15.9/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Good
19.1/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.3/100
PM1 (ultrafine particles):
Good
3.7/100
Pollen forecast in Mairiporã
View pollen forecastFrequently Asked Questions
Is air quality bad in Mairiporã right now?
On 9 August 2026, overall air quality in Mairiporã is fair. AQI is the main air quality indicator at 23.8/100. Pollution peaks around 5:00 PM (PM2.5: 23.8/100).
Will air quality be worse tomorrow in Mairiporã?
On 10 August 2026, air quality conditions in Mairiporã will be similar to today, with AQI forecast at fair at 33.0/100. Pollution peaks around 8:00 AM (PM2.5: 33.0/100).
When is air pollution at its worst in Mairiporã?
Residents in Mairiporã are most likely to notice reduced air quality when native Atlantic Forest species and eucalyptus pollen peaks, or due to vehicle emissions from the SP-360 Fernão Dias highway; the rest of the year, the local setting keeps things noticeably clearer than average.
Are air quality levels in Mairiporã 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.
Want to see air quality forecasts for other cities in Brazil?
Check air quality in other popular cities:
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.
Get the full experience in the Airmine app.