Worst air pollution Jacareí, today and tomorrow
Today (16 July): Air quality in Jacareí is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 PM (O3: 15.9/100).
Tomorrow (17 July 2026): Air quality in Jacareí is good. All pollutants stay as today. Pollution peaks around 11:00 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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Jacareí's air quality reflects its position in the Paraíba do Sul river valley on the São Paulo-Rio de Janeiro industrial corridor, with vehicle emissions from the Dutra Presidente Dutra highway and the surrounding automotive, paper, and chemical manufacturing industry contributing elevated NOₓ and PM2.5. The valley's enclosed topography between the Serra da Mantiqueira and Serra do Mar creates topographic concentration that compounds the industrial corridor's emissions under calm conditions throughout the year.
Today - 16 July | Pollution peaks at 22:00
AQI:
Good
15.9/100
PM2.5 (fine particles):
Good
5.3/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
15.9/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
0.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Good
16.7/100
PM2.5 (fine particles):
Good
7.1/100
PM10 (coarse particles):
Good
3.2/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
16.7/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.3/100
Pollen forecast in Jacareí
View pollen forecastFrequently Asked Questions
Is air quality bad in Jacareí right now?
On 16 July 2026, overall air quality in Jacareí is good. AQI is the main air quality indicator at 15.9/100. Pollution peaks around 10:00 PM (O3: 15.9/100).
Will air quality be worse tomorrow in Jacareí?
On 17 July 2026, air quality conditions in Jacareí will be similar to today, with AQI forecast at good at 16.7/100. Pollution peaks around 11:00 PM (O3: 16.7/100).
When is air pollution at its worst in Jacareí?
Air quality dips in Jacareí mostly track eucalyptus and the Paraíba do Sul River corridor vegetation pollen peaks and periods of vehicle emissions from the Dutra Presidente Dutra highway and the surrounding automotive, paper; cooler, breezier weather later in the year tends to bring things back down.
Are air quality levels in Jacareí 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