Worst air pollution Brussels, today and tomorrow
Today (16 July): Air quality in Brussels is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 52.8/100).
Tomorrow (17 July 2026): Air quality in Brussels is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 37.8/100). 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
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Brussels' air quality is shaped by its position at the heart of the densely populated and industrialised Rhine-Meuse-Scheldt corridor, with vehicle traffic on the ring road and the broader Benelux highway network contributing sustained high NO₂. Belgian industrial emissions and cross-border pollution from the Ruhr combine with local sources to keep Brussels among the more polluted western European capitals.
Today - 16 July | Pollution peaks at 18:00
AQI:
Medium
52.8/100
PM2.5 (fine particles):
Good
6.1/100
PM10 (coarse particles):
Good
2.0/100
NO2 (nitrogen dioxide):
Good
8.6/100
O3 (ozone):
Medium
52.8/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
6.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Fair
37.8/100
PM2.5 (fine particles):
Good
8.6/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Good
15.7/100
O3 (ozone):
Fair
37.8/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
8.1/100
Pollen forecast in Brussels
View pollen forecastSports venues in Brussels
Frequently Asked Questions
Is air quality bad in Brussels right now?
On 16 July 2026, overall air quality in Brussels is medium. AQI is the main air quality indicator at 52.8/100. Pollution peaks around 6:00 PM (O3: 52.8/100).
Will air quality be worse tomorrow in Brussels?
On 17 July 2026, air quality conditions in Brussels will be worse than today, with AQI forecast at fair at 37.8/100. Pollution peaks around 4:00 PM (O3: 37.8/100).
When is air pollution at its worst in Brussels?
Brussels residents notice reduced air quality mainly when birch and linden pollen peaks, and during spells of vehicle traffic on the ring road and the broader Benelux highway network; the rest of the calendar year is generally more forgiving for air quality.
Are air quality levels in Brussels 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 Belgium?
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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