Worst air pollution Caucaia, today and tomorrow
Today (16 July): Air quality in Caucaia is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 AM (O3: 22.1/100).
Tomorrow (17 July 2026): Air quality in Caucaia is fair. PM2.5 increases to fair; all other pollutants stay as today. Pollution peaks around 5:00 PM (PM2.5: 27.4/100). 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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Caucaia's air quality benefits from its position on the Ceará coast adjacent to Fortaleza, with consistent Atlantic trade winds providing reliable maritime ventilation across this rapidly urbanising coastal municipality. Vehicle emissions from the CE-085 corridor and the expanding industrial district near the Pecém port complex are the primary local sources, while the coastal position and consistent northeast trade winds generally keep readings moderate throughout the year.
Today - 16 July | Pollution peaks at 05:00
AQI:
Fair
22.1/100
PM2.5 (fine particles):
Good
16.7/100
PM10 (coarse particles):
Good
7.0/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
22.1/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
7.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 17:00
AQI:
Fair
27.4/100
PM2.5 (fine particles):
Fair
27.4/100
PM10 (coarse particles):
Good
10.9/100
NO2 (nitrogen dioxide):
Good
0.1/100
O3 (ozone):
Fair
23.3/100
SO2 (sulfur dioxide):
Good
1.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.7/100
PM1 (ultrafine particles):
Good
18.5/100
Pollen forecast in Caucaia
View pollen forecastFrequently Asked Questions
Is air quality bad in Caucaia right now?
On 16 July 2026, overall air quality in Caucaia is fair. AQI is the main air quality indicator at 22.1/100. Pollution peaks around 5:00 AM (O3: 22.1/100).
Will air quality be worse tomorrow in Caucaia?
On 17 July 2026, air quality conditions in Caucaia will be similar to today, with AQI forecast at fair at 27.4/100. Pollution peaks around 5:00 PM (PM2.5: 27.4/100).
When is air pollution at its worst in Caucaia?
In Caucaia, reduced air quality is most noticeable when coconut palm and coastal dune restinga vegetation pollen peaks, and on days affected by vehicle emissions from the CE-085 corridor and the expanding industrial district near the Pecém port complex; the rest of the year, the local setting keeps things noticeably clearer than average.
Are air quality levels in Caucaia 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