Worst air pollution Osasco, today and tomorrow
Today (16 July): Air quality in Osasco is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 15.6/100).
Tomorrow (17 July 2026): Air quality in Osasco is good. All pollutants stay as today. Pollution peaks around 10:00 PM (O3: 16.7/100). 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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Osasco's air quality is significantly influenced by its position as one of greater São Paulo's most industrialised western municipalities, with manufacturing plants, vehicle emissions from the Rodovia Castello Branco and the Marginal Tietê expressway corridor generating sustained elevated PM2.5 and NOₓ. The Tietê river valley can trap emissions under calm conditions, contributing to Osasco's consistently elevated readings within the metropolitan area.
Today - 16 July | Pollution peaks at 23:00
AQI:
Good
15.6/100
PM2.5 (fine particles):
Good
6.0/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
15.6/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 22:00
AQI:
Good
16.7/100
PM2.5 (fine particles):
Good
6.6/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
16.7/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.4/100
Pollen forecast in Osasco
View pollen forecastFrequently Asked Questions
Is air quality bad in Osasco right now?
On 16 July 2026, overall air quality in Osasco is good. AQI is the main air quality indicator at 15.6/100. Pollution peaks around 11:00 PM (O3: 15.6/100).
Will air quality be worse tomorrow in Osasco?
On 17 July 2026, air quality conditions in Osasco will be similar to today, with AQI forecast at good at 16.7/100. Pollution peaks around 10:00 PM (O3: 16.7/100).
When is air pollution at its worst in Osasco?
Residents in Osasco are most likely to notice reduced air quality when eucalyptus and pine pollen peaks, or due to manufacturing plants, vehicle emissions from the Rodovia Castello Branco and the Marginal Tietê expressway corridor; conditions usually ease once the wet season or windier weather returns.
Are air quality levels in Osasco 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app