SmogRank / Countries / Belgium

Most polluted cities in Belgium

38 measured cities, last 30 days; 0 above the WHO 24-hour guideline. Worst: Izegem at 9.5 µg/m³, #434 in the world.

37 good  1 moderate

  1. 1IzegemFlanders 9.5
  2. 2Flémalle-HauteWallonia 6.8
  3. 3LochristiFlanders 6.7
  4. 4GenkFlanders 6.5
  5. 5HouthalenFlanders 6.3
  6. 6ZwijndrechtFlanders 6.2
  7. 7StabroekFlanders 6.2
  8. 8RoeselareFlanders 6.2
  9. 9Knokke-HeistFlanders 6.2
  10. 10EvergemFlanders 6.2
  11. 11AntwerpFlanders 6.2
  12. 12GentFlanders 6.1
  13. 13MaldegemFlanders 5.9
  14. 14KortrijkFlanders 5.9
  15. 15KapellenFlanders 5.9
  16. 16MenenFlanders 5.8
  17. 17MechelenFlanders 5.8
  18. 18KoksijdeFlanders 5.8
  19. 19GrimbergenFlanders 5.8
  20. 20BeverenFlanders 5.8
  21. 21WillebroekFlanders 5.7
  22. 22HasseltFlanders 5.5
  23. 23MolFlanders 5.3
  24. 24LiègeWallonia 5.3
  25. 25ZaventemFlanders 5.2
  26. 26AarschotFlanders 4.8
  27. 27NamurWallonia 4.7
  28. 28BrusselsBrussels Capital 4.7
  29. 29Beersellow-cost sensorsFlanders 4.1
  30. 30MonsWallonia 4.0
  31. 31RixensartWallonia 3.7
  32. 32TournaiWallonia 3.6
  33. 33CharleroiWallonia 3.4
  34. 34AndenneWallonia 3.1
  35. 35JumetWallonia 2.9
  36. 36AnsWallonia 2.8
  37. 37Marche-en-FamenneWallonia 2.6
  38. 38EupenWallonia 2.5
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

Estimated: cities without a monitor

Belgium cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Anderlecht≈ 8 µg/m³Good
Schaerbeek≈ 8 µg/m³Good
Brugge≈ 9 µg/m³Good
Leuven≈ 7 µg/m³Good
Molenbeek-Saint-Jean≈ 8 µg/m³Good
Ixelles≈ 8 µg/m³Good
Uccle≈ 8 µg/m³Good
Deurne≈ 9 µg/m³Good
Aalst≈ 8 µg/m³Good
La Louvière≈ 7 µg/m³Good
Ostend≈ 9 µg/m³Moderate
Sint-Niklaas≈ 9 µg/m³Good
Seraing≈ 6 µg/m³Good
Woluwe-Saint-Lambert≈ 8 µg/m³Good
Forest≈ 8 µg/m³Good
Verviers≈ 6 µg/m³Good
Jette≈ 8 µg/m³Good
Mouscron≈ 10 µg/m³Moderate
Saint-Gilles≈ 8 µg/m³Good
Etterbeek≈ 8 µg/m³Good
Borgerhout≈ 9 µg/m³Good
Dendermonde≈ 9 µg/m³Good
Merksem≈ 9 µg/m³Good
Turnhout≈ 9 µg/m³Good
Berchem≈ 9 µg/m³Good
Evere≈ 8 µg/m³Good
Lokeren≈ 9 µg/m³Good
Wilrijk≈ 9 µg/m³Good
Beringen≈ 8 µg/m³Good
Dilbeek≈ 8 µg/m³Good
Heist-op-den-Berg≈ 8 µg/m³Good
Sint-Truiden≈ 8 µg/m³Good
Braine-l'Alleud≈ 8 µg/m³Good
Brasschaat≈ 9 µg/m³Good
Vilvoorde≈ 8 µg/m³Good
Herstal≈ 8 µg/m³Good
Maasmechelen≈ 8 µg/m³Good
Waregem≈ 9 µg/m³Good
Châtelet≈ 6 µg/m³Good
Ieper≈ 10 µg/m³Moderate

Regions

Brussels Capital 1Flanders 25Wallonia 12

Measured cities in each region (30 days).

Updated 2026-10-01 17:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.