Worst air pollution Pelotas, today and tomorrow
Today (16 July): Air quality in Pelotas is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 12.7/100).
Tomorrow (17 July 2026): Air quality in Pelotas is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 17.3/100). 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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Pelotas' air quality reflects its position in the far south of Brazil near the Lagoa dos Patos, with consistent southerly Pampas winds from Argentina generally providing good natural ventilation across this Rio Grande do Sul coastal city. Vehicle emissions from the BR-116 corridor are the primary local source, while dry season burning from surrounding Rio Grande do Sul agricultural land contributes seasonal PM2.5, and the southerly position generally gives Pelotas more favourable baseline readings than northern Brazil.
Today - 16 July | Pollution peaks at 18:00
AQI:
Good
12.7/100
PM2.5 (fine particles):
Good
7.5/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Good
0.2/100
O3 (ozone):
Good
12.7/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Good
17.3/100
PM2.5 (fine particles):
Good
8.9/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Good
17.3/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
1.6/100
Pollen forecast in Pelotas
View pollen forecastFrequently Asked Questions
Is air quality bad in Pelotas right now?
On 16 July 2026, overall air quality in Pelotas is good. AQI is the main air quality indicator at 12.7/100. Pollution peaks around 6:00 PM (O3: 12.7/100).
Will air quality be worse tomorrow in Pelotas?
On 17 July 2026, air quality conditions in Pelotas will be similar to today, with AQI forecast at good at 17.3/100. Pollution peaks around 11:00 PM (O3: 17.3/100).
When is air pollution at its worst in Pelotas?
The most noticeable dips in Pelotas's air quality come when native pampa grasses and Pelotas River riparian vegetation pollen peaks, or because of vehicle emissions from the BR-116 corridor; wind and rain both help clear the air fairly quickly here.
Are air quality levels in Pelotas 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?
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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