Highest air pollution Fortaleza, today and tomorrow
Today (27 June): Air quality in Fortaleza is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 AM (O3: 19.4/100).
Tomorrow (28 June 2026): Air quality in Fortaleza is good. All pollutants stay as today. Pollution peaks around 12:00 AM (O3: 18.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Fortaleza's air quality benefits from consistent northeast trade winds off the Atlantic that provide reliable ventilation across this coastal northeastern Brazilian city throughout most of the year. Vehicle emissions from the rapidly growing metropolitan area are the primary local source, with readings generally more favourable than Brazil's larger inland industrial cities.
Today - 27 June | Pollution peaks at 06:00
AQI:
Good
19.4/100
PM2.5 (fine particles):
Good
13.4/100
PM10 (coarse particles):
Good
5.6/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
19.4/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
6.3/100
Levels show the poorest local air quality during the day
Tomorrow - 28 June | Pollution peaks at 00:00
AQI:
Good
18.9/100
PM2.5 (fine particles):
Good
11.0/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
18.9/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.6/100
PM1 (ultrafine particles):
Good
5.0/100
Pollen forecast in Fortaleza
View pollen forecastFrequently Asked Questions
Is air quality bad in Fortaleza right now?
On 27 June 2026, overall air quality in Fortaleza is good. AQI is the main air quality indicator at 19.4/100. Pollution peaks around 6:00 AM (O3: 19.4/100).
Will air quality be worse tomorrow in Fortaleza?
On 28 June 2026, air quality conditions in Fortaleza will be similar to today, with AQI forecast at good at 18.9/100. Pollution peaks around 12:00 AM (O3: 18.9/100).
Are air quality levels in Fortaleza 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?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 27 June 2026 at 12:38 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team