SmogRank / World / Belgium / October 2025

Most polluted cities in Belgium, October 2025

36 cities in Belgium ranked by their average PM2.5 over the 31 days. Worst: Izegem at 9.6 µg/m³, #549 of 2,296 cities in the world. Cleanest: Jumet at 3.5. A city needs measurements on 70% of the days to be ranked.

← Izegem 9.6
Every city in Belgium ranked for October 2025, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1IzegemFlanders
    14
  2. 2RoeselareFlanders
    12
  3. 3MenenFlanders
    12
  4. 4GenkFlanders
    12
  5. 4EvergemFlanders
    12
  6. 6LochristiFlanders
    11
  7. 6KortrijkFlanders
    11
  8. 8GentFlanders
    11
  9. 9GrimbergenFlanders
    11
  10. 10Knokke-HeistFlanders
    11
  11. 11AntwerpFlanders
    10
  12. 12MechelenFlanders
    10
  13. 12MaldegemFlanders
    10
  14. 14ZaventemFlanders
    10
  15. 14StabroekFlanders
    10
  16. 16BeverenFlanders
    10
  17. 17WillebroekFlanders
    10
  18. 17MonsWallonia
    10
  19. 17HouthalenFlanders
    10
  20. 17AarschotFlanders
    10
  21. 21ZwijndrechtFlanders
    10
  22. 21MolFlanders
    10
  23. 23KoksijdeFlanders
    9
  24. 23KapellenFlanders
    9
  25. 23HasseltFlanders
    9
  26. 26BrusselsBrussels Capital
    9
  27. 27RixensartWallonia
    8
  28. 28TournaiWallonia
    8
  29. 29Marche-en-FamenneWallonia
    7
  30. 29LiègeWallonia
    7
  31. 31AnsWallonia
    7
  32. 32CharleroiWallonia
    7
  33. 33Flémalle-HauteWallonia
    6
  34. 34AndenneWallonia
    6
  35. 35NamurWallonia
    6
  36. 36JumetWallonia
    5
Excellent0–50
Good51–100
Lightly polluted101–150
Moderately polluted151–200
Heavily polluted201–300
Severely polluted301+

China's Air Quality Index (HJ 633-2012), PM2.5 individual index. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, October 2025 · Belgium now

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SmogRank, most polluted cities in Belgium, PM2.5, October 2025, smogrank.com/be/history/2025-10 (accessed 2 Oct 2026).

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