Worst air pollution Cruzeiro do Sul, today and tomorrow

Today (16 July): Air quality in Cruzeiro do Sul is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (O3: 24.1/100).
Tomorrow (17 July 2026): Air quality in Cruzeiro do Sul is fair. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 25.7/100). 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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Cruzeiro do Sul's air quality faces severe seasonal challenges as the capital of Acre state's western forest region, with dry season burning from surrounding Amazon deforestation generating some of Brazil's most intense PM2.5 episodes between June and October. Vehicle emissions from the BR-364 contribute year-round, while the flat Juruá river basin's calm dry season conditions allow fire smoke to accumulate extensively throughout the region.

Today - 16 July | Pollution peaks at 06:00

AQI:

Fair

24.1/100

PM2.5 (fine particles):

Good

13.0/100

PM10 (coarse particles):

Good

5.3/100

NO2 (nitrogen dioxide):

Good

0/100

O3 (ozone):

Fair

24.1/100

SO2 (sulfur dioxide):

Good

0/100

CO (carbon monoxide):

Good

0/100

HCHO (formaldehyde):

Good

0.6/100

PM1 (ultrafine particles):

Good

6.1/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 23:00

AQI:

Fair

25.7/100

PM2.5 (fine particles):

Good

15.1/100

PM10 (coarse particles):

Good

5.8/100

NO2 (nitrogen dioxide):

Good

0/100

O3 (ozone):

Fair

25.7/100

SO2 (sulfur dioxide):

Good

0/100

CO (carbon monoxide):

Good

0/100

HCHO (formaldehyde):

Good

0.6/100

PM1 (ultrafine particles):

Good

9.3/100

Frequently Asked Questions

Is air quality bad in Cruzeiro do Sul right now?

On 16 July 2026, overall air quality in Cruzeiro do Sul is fair. AQI is the main air quality indicator at 24.1/100. Pollution peaks around 6:00 AM (O3: 24.1/100).

Will air quality be worse tomorrow in Cruzeiro do Sul?

On 17 July 2026, air quality conditions in Cruzeiro do Sul will be similar to today, with AQI forecast at fair at 25.7/100. Pollution peaks around 11:00 PM (O3: 25.7/100).

When is air pollution at its worst in Cruzeiro do Sul?

You're most likely to notice worse air in Cruzeiro do Sul when native Amazon rainforest trees and riparian vegetation pollen peaks, or due to dry season burning from surrounding Amazon deforestation; conditions usually ease once the wet season or windier weather returns.

Are air quality levels in Cruzeiro 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?

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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