SmogRank / Countries / Belgium / September 2026

Most polluted cities in Belgium, September 2026

38 cities in Belgium ranked by their average PM2.5 over the 30 days. Worst: Izegem at 9.5 µg/m³, #435 of 2,330 cities in the world. Cleanest: Eupen at 2.6. A city needs measurements on 70% of the days to be ranked.

  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. 6StabroekFlanders
    6.2
  8. 6RoeselareFlanders
    6.2
  9. 6Knokke-HeistFlanders
    6.2
  10. 6EvergemFlanders
    6.2
  11. 6AntwerpFlanders
    6.2
  12. 12GentFlanders
    6.1
  13. 13MaldegemFlanders
    5.9
  14. 13KortrijkFlanders
    5.9
  15. 13KapellenFlanders
    5.9
  16. 16MenenFlanders
    5.8
  17. 16MechelenFlanders
    5.8
  18. 16KoksijdeFlanders
    5.8
  19. 16GrimbergenFlanders
    5.8
  20. 16BeverenFlanders
    5.8
  21. 21WillebroekFlanders
    5.7
  22. 22HasseltFlanders
    5.5
  23. 23MolFlanders
    5.3
  24. 23LiègeWallonia
    5.3
  25. 25ZaventemFlanders
    5.2
  26. 26AarschotFlanders
    4.8
  27. 27NamurWallonia
    4.7
  28. 27BrusselsBrussels Capital
    4.7
  29. 29Beersellow-cost sensorsFlanders
    4.3
  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. 35AnsWallonia
    2.9
  37. 37Marche-en-FamenneWallonia
    2.6
  38. 37EupenWallonia
    2.6
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, September 2026 · Belgium now

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SmogRank, most polluted cities in Belgium, PM2.5, September 2026, smogrank.com/be/history/2026-09 (accessed 2 Oct 2026).

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