Worst air pollution Rio Largo, today and tomorrow

Today (16 July): Air quality in Rio Largo is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 24.5/100).
Tomorrow (17 July 2026): Air quality in Rio Largo is fair. All pollutants stay as today. Pollution peaks around 10:00 PM (O3: 26.1/100). 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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Rio Largo's air quality reflects the greater Maceió metropolitan area in Alagoas, with vehicle emissions from the AL-220 and surrounding sugarcane and food processing industry contributing local sources. Atlantic trade winds from the Alagoas coast provide background maritime ventilation, while the sugarcane processing operations add organic aerosols during the harvest season and the coastal metropolitan expansion drives increasing vehicle emissions throughout the year.

Today - 16 July | Pollution peaks at 23:00

AQI:

Fair

24.5/100

PM2.5 (fine particles):

Good

11.3/100

PM10 (coarse particles):

Good

4.6/100

NO2 (nitrogen dioxide):

Good

0.0/100

O3 (ozone):

Fair

24.5/100

SO2 (sulfur dioxide):

Good

0.1/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.6/100

PM1 (ultrafine particles):

Good

4.8/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 22:00

AQI:

Fair

26.1/100

PM2.5 (fine particles):

Good

15.4/100

PM10 (coarse particles):

Good

6.2/100

NO2 (nitrogen dioxide):

Good

0.0/100

O3 (ozone):

Fair

26.1/100

SO2 (sulfur dioxide):

Good

0.1/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.6/100

PM1 (ultrafine particles):

Good

8.9/100

Pollen forecast in Rio Largo

View pollen forecast

Frequently Asked Questions

Is air quality bad in Rio Largo right now?

On 16 July 2026, overall air quality in Rio Largo is fair. AQI is the main air quality indicator at 24.5/100. Pollution peaks around 11:00 PM (O3: 24.5/100).

Will air quality be worse tomorrow in Rio Largo?

On 17 July 2026, air quality conditions in Rio Largo will be similar to today, with AQI forecast at fair at 26.1/100. Pollution peaks around 10:00 PM (O3: 26.1/100).

When is air pollution at its worst in Rio Largo?

Reduced air quality in Rio Largo is most likely when sugarcane plantation vegetation and introduced urban trees pollen peaks, alongside periods of vehicle emissions from the AL-220 and surrounding sugarcane and food processing industry; the rest of the year typically brings clearer, more consistent conditions.

Are air quality levels in Rio Largo 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