SmogRank / Countries / Belgium / January 2026

Most polluted cities in Belgium, January 2026

36 cities in Belgium ranked by their average PM2.5 over the 31 days. Worst: Houthalen at 15.6 µg/m³, #471 of 2,047 cities in the world. Cleanest: Jumet at 6.1. A city needs measurements on 70% of the days to be ranked.

  1. 1HouthalenFlanders
    15.6
  2. 2EvergemFlanders
    15.2
  3. 3IzegemFlanders
    14.5
  4. 4HasseltFlanders
    14.3
  5. 5GrimbergenFlanders
    13.9
  6. 6MechelenFlanders
    13.5
  7. 7MolFlanders
    13.4
  8. 8LochristiFlanders
    13.2
  9. 8GenkFlanders
    13.2
  10. 8AntwerpFlanders
    13.2
  11. 11ZwijndrechtFlanders
    13.1
  12. 12BeverenFlanders
    12.9
  13. 13WillebroekFlanders
    12.8
  14. 13MaldegemFlanders
    12.8
  15. 13KapellenFlanders
    12.8
  16. 16StabroekFlanders
    12.5
  17. 17RoeselareFlanders
    12.2
  18. 17GentFlanders
    12.2
  19. 17AarschotFlanders
    12.2
  20. 20MenenFlanders
    11.9
  21. 21Knokke-HeistFlanders
    11.8
  22. 22ZaventemFlanders
    11.6
  23. 23KortrijkFlanders
    11.3
  24. 24BrusselsBrussels Capital
    11.2
  25. 25KoksijdeFlanders
    10.7
  26. 26LiègeWallonia
    10.5
  27. 27MonsWallonia
    10.4
  28. 28RixensartWallonia
    10.1
  29. 29Flémalle-HauteWallonia
    9.0
  30. 30TournaiWallonia
    8.5
  31. 30CharleroiWallonia
    8.5
  32. 32AnsWallonia
    8.3
  33. 33EupenWallonia
    7.9
  34. 34AndenneWallonia
    7.7
  35. 35NamurWallonia
    7.4
  36. 36JumetWallonia
    6.1
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, January 2026 · Belgium now