SmogRank / Countries / Belgium / May 2026

Most polluted cities in Belgium, May 2026

39 cities in Belgium ranked by their average PM2.5 over the 31 days. Worst: Koksijde at 10.0 µg/m³, #465 of 2,243 cities in the world. Cleanest: Eupen at 2.9. A city needs measurements on 70% of the days to be ranked.

  1. 1KoksijdeFlanders
    10.0
  2. 2RoeselareFlanders
    9.6
  3. 2MaldegemFlanders
    9.6
  4. 4IzegemFlanders
    9.5
  5. 5Knokke-HeistFlanders
    9.4
  6. 6LochristiFlanders
    9.3
  7. 7EvergemFlanders
    8.9
  8. 8GentFlanders
    8.4
  9. 8BeverenFlanders
    8.4
  10. 10StabroekFlanders
    8.3
  11. 10MenenFlanders
    8.3
  12. 10KortrijkFlanders
    8.3
  13. 13ZwijndrechtFlanders
    8.2
  14. 13AntwerpFlanders
    8.2
  15. 15KapellenFlanders
    8.0
  16. 16HouthalenFlanders
    7.9
  17. 16GrimbergenFlanders
    7.9
  18. 18WillebroekFlanders
    7.7
  19. 19MechelenFlanders
    7.6
  20. 20GenkFlanders
    7.5
  21. 20Beersellow-cost sensorsFlanders
    7.5
  22. 22HasseltFlanders
    7.2
  23. 23MolFlanders
    7.1
  24. 24LiègeWallonia
    6.6
  25. 25ZaventemFlanders
    6.5
  26. 25AarschotFlanders
    6.5
  27. 27MonsWallonia
    6.4
  28. 28BrusselsBrussels Capital
    6.3
  29. 29Overijselow-cost sensorsFlanders
    5.5
  30. 29CharleroiWallonia
    5.5
  31. 31Flémalle-HauteWallonia
    5.4
  32. 32NamurWallonia
    5.2
  33. 33TournaiWallonia
    5.1
  34. 33AndenneWallonia
    5.1
  35. 35RixensartWallonia
    5.0
  36. 36JumetWallonia
    4.8
  37. 37Marche-en-FamenneWallonia
    4.0
  38. 38AnsWallonia
    3.5
  39. 39EupenWallonia
    2.9
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, May 2026 · Belgium now