Worst air pollution Icó, today and tomorrow

Today (16 July): Air quality in Icó is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 AM (O3: 23.3/100).
Tomorrow (17 July 2026): Air quality in Icó is fair. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 24.3/100). 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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Icó's air quality reflects the Ceará Sertão interior semi-arid region in the upper Salgado river basin, with vehicle emissions from the BR-116 and surrounding cattle, cotton, and carnauba palm farming contributing local sources. Drought conditions and Caatinga burning contribute seasonal PM10 elevation, while the flat semi-arid terrain generally allows reasonable dispersal and the inland position reduces the beneficial Atlantic trade wind coastal ventilation significantly throughout the year.

Today - 16 July | Pollution peaks at 04:00

AQI:

Fair

23.3/100

PM2.5 (fine particles):

Good

10.2/100

PM10 (coarse particles):

Good

4.2/100

NO2 (nitrogen dioxide):

Good

0.0/100

O3 (ozone):

Fair

23.3/100

SO2 (sulfur dioxide):

Good

0.2/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.6/100

PM1 (ultrafine particles):

Good

5.2/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 23:00

AQI:

Fair

24.3/100

PM2.5 (fine particles):

Good

15.0/100

PM10 (coarse particles):

Good

5.9/100

NO2 (nitrogen dioxide):

Good

0.0/100

O3 (ozone):

Fair

24.3/100

SO2 (sulfur dioxide):

Good

0.2/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

0.6/100

PM1 (ultrafine particles):

Good

9.1/100

Pollen forecast in Icó

View pollen forecast

Frequently Asked Questions

Is air quality bad in Icó right now?

On 16 July 2026, overall air quality in Icó is fair. AQI is the main air quality indicator at 23.3/100. Pollution peaks around 4:00 AM (O3: 23.3/100).

Will air quality be worse tomorrow in Icó?

On 17 July 2026, air quality conditions in Icó will be similar to today, with AQI forecast at fair at 24.3/100. Pollution peaks around 11:00 PM (O3: 24.3/100).

When is air pollution at its worst in Icó?

The most noticeable dips in Icó's air quality come when native caatinga scrub and sparse drought-adapted trees pollen peaks, or because of vehicle emissions from the BR-116 and surrounding cattle, cotton, and carnauba palm farming; the rest of the year typically brings clearer, more consistent conditions.

Are air quality levels in Icó 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