Worst air pollution Santa Rosa, today and tomorrow
Today (16 July): Air quality in Santa Rosa is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 PM (O3: 15.5/100).
Tomorrow (17 July 2026): Air quality in Santa Rosa is good. All pollutants stay as today. Pollution peaks around 10:00 AM (O3: 15.6/100). 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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Santa Rosa's air quality in Brazil reflects the Rio Grande do Sul northwestern plateau at 328 metres, with vehicle emissions from the RS-163 and surrounding soybean, wheat, and poultry processing agribusiness contributing local sources. The elevated plateau position aids background dispersal, while dry season burning from surrounding agricultural land contributes seasonal PM2.5 variation and cold winter temperature inversions in the southern Brazilian highlands add localised wood-burning emissions during the heating season.
Today - 16 July | Pollution peaks at 22:00
AQI:
Good
15.5/100
PM2.5 (fine particles):
Good
13.8/100
PM10 (coarse particles):
Good
6.2/100
NO2 (nitrogen dioxide):
Good
1.6/100
O3 (ozone):
Good
15.5/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
2.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Good
15.6/100
PM2.5 (fine particles):
Good
12.7/100
PM10 (coarse particles):
Good
5.8/100
NO2 (nitrogen dioxide):
Good
0.7/100
O3 (ozone):
Good
15.6/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
2.7/100
Pollen forecast in Santa Rosa
View pollen forecastFrequently Asked Questions
Is air quality bad in Santa Rosa right now?
On 16 July 2026, overall air quality in Santa Rosa is good. AQI is the main air quality indicator at 15.5/100. Pollution peaks around 10:00 PM (O3: 15.5/100).
Will air quality be worse tomorrow in Santa Rosa?
On 17 July 2026, air quality conditions in Santa Rosa will be similar to today, with AQI forecast at good at 15.6/100. Pollution peaks around 10:00 AM (O3: 15.6/100).
When is air pollution at its worst in Santa Rosa?
Reduced air quality in Santa Rosa is most likely when native Araucaria forest remnants and soybean farmland pollen peaks, alongside periods of vehicle emissions from the RS-163 and surrounding soybean, wheat, and poultry processing agribusiness; cooler, breezier weather later in the year tends to bring things back down.
Are air quality levels in Santa Rosa 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