SmogRank / Countries / Belgium / April 2026

Most polluted cities in Belgium, April 2026

39 cities in Belgium ranked by their average PM2.5 over the 30 days. Worst: Izegem at 9.2 µg/m³, #749 of 2,283 cities in the world. Cleanest: Marche-en-Famenne at 3.9. A city needs measurements on 70% of the days to be ranked.

  1. 1IzegemFlanders
    9.2
  2. 1EvergemFlanders
    9.2
  3. 3RoeselareFlanders
    9.0
  4. 3LochristiFlanders
    9.0
  5. 5ZwijndrechtFlanders
    8.9
  6. 6MaldegemFlanders
    8.6
  7. 6Knokke-HeistFlanders
    8.6
  8. 8StabroekFlanders
    8.4
  9. 8HouthalenFlanders
    8.4
  10. 8GrimbergenFlanders
    8.4
  11. 8GentFlanders
    8.4
  12. 8BeverenFlanders
    8.4
  13. 8AntwerpFlanders
    8.4
  14. 14MenenFlanders
    8.3
  15. 15KoksijdeFlanders
    8.2
  16. 16KortrijkFlanders
    8.1
  17. 17WillebroekFlanders
    7.8
  18. 17MechelenFlanders
    7.8
  19. 17KapellenFlanders
    7.8
  20. 17GenkFlanders
    7.8
  21. 21HasseltFlanders
    7.5
  22. 22MonsWallonia
    7.4
  23. 23LiègeWallonia
    7.3
  24. 23AarschotFlanders
    7.3
  25. 25BrusselsBrussels Capital
    7.2
  26. 26MolFlanders
    7.1
  27. 27ZaventemFlanders
    7.0
  28. 28Beersellow-cost sensorsFlanders
    6.4
  29. 29Flémalle-HauteWallonia
    6.3
  30. 30CharleroiWallonia
    6.0
  31. 31AndenneWallonia
    5.8
  32. 32RixensartWallonia
    5.6
  33. 33Overijselow-cost sensorsFlanders
    5.2
  34. 33JumetWallonia
    5.2
  35. 35TournaiWallonia
    5.0
  36. 36NamurWallonia
    4.9
  37. 37AnsWallonia
    4.4
  38. 38EupenWallonia
    4.0
  39. 39Marche-en-FamenneWallonia
    3.9
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, April 2026 · Belgium now