Worst air pollution Cachoeira do Sul, today and tomorrow
Today (16 July): Air quality in Cachoeira do Sul is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 13.3/100).
Tomorrow (17 July 2026): Air quality in Cachoeira do Sul is good. All pollutants stay as today. Pollution peaks around 12:00 AM (O3: 13.3/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Use our Strava plugin to check your own exposure.
Cachoeira do Sul's air quality reflects the Rio Grande do Sul central plateau at 68 metres on the Jacuí river, with vehicle emissions from the BR-290 and surrounding soybean, rice, and cattle agribusiness contributing local sources. The flat southern Brazilian coastal plain provides reasonable wind dispersal, while dry season burning from surrounding agricultural land contributes seasonal PM2.5 variation and cold winter temperature inversions can periodically concentrate vehicle and wood-burning emissions.
Today - 16 July | Pollution peaks at 09:00
AQI:
Good
13.3/100
PM2.5 (fine particles):
Good
9.2/100
PM10 (coarse particles):
Good
4.3/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Good
13.3/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
1.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 00:00
AQI:
Good
13.3/100
PM2.5 (fine particles):
Good
11.7/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Good
0.4/100
O3 (ozone):
Good
13.3/100
SO2 (sulfur dioxide):
Good
1.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
2.1/100
Pollen forecast in Cachoeira do Sul
View pollen forecastFrequently Asked Questions
Is air quality bad in Cachoeira do Sul right now?
On 16 July 2026, overall air quality in Cachoeira do Sul is good. AQI is the main air quality indicator at 13.3/100. Pollution peaks around 9:00 AM (O3: 13.3/100).
Will air quality be worse tomorrow in Cachoeira do Sul?
On 17 July 2026, air quality conditions in Cachoeira do Sul will be similar to today, with AQI forecast at good at 13.3/100. Pollution peaks around 12:00 AM (O3: 13.3/100).
When is air pollution at its worst in Cachoeira do Sul?
Residents in Cachoeira do Sul are most likely to notice reduced air quality when native pampa grasses and eucalyptus pollen peaks, or due to vehicle emissions from the BR-290 and surrounding soybean, rice, and cattle agribusiness; a change of season or a spell of wind usually clears things up again.
Are air quality levels in Cachoeira do Sul 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.
Want to see air quality forecasts for other cities in Brazil?
Check air quality in other popular cities:
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