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
    52
  2. 2RoeselareFlanders
    46
  3. 3MenenFlanders
    46
  4. 4GenkFlanders
    43
  5. 4EvergemFlanders
    43
  6. 6LochristiFlanders
    43
  7. 6KortrijkFlanders
    43
  8. 8GentFlanders
    41
  9. 9GrimbergenFlanders
    41
  10. 10Knokke-HeistFlanders
    39
  11. 11AntwerpFlanders
    39
  12. 12MechelenFlanders
    38
  13. 12MaldegemFlanders
    38
  14. 14ZaventemFlanders
    38
  15. 14StabroekFlanders
    38
  16. 16BeverenFlanders
    37
  17. 17WillebroekFlanders
    37
  18. 17MonsWallonia
    37
  19. 17HouthalenFlanders
    37
  20. 17AarschotFlanders
    37
  21. 21ZwijndrechtFlanders
    36
  22. 21MolFlanders
    36
  23. 23KoksijdeFlanders
    34
  24. 23KapellenFlanders
    34
  25. 23HasseltFlanders
    34
  26. 26BrusselsBrussels Capital
    32
  27. 27RixensartWallonia
    30
  28. 28TournaiWallonia
    29
  29. 29Marche-en-FamenneWallonia
    26
  30. 29LiègeWallonia
    26
  31. 31AnsWallonia
    26
  32. 32CharleroiWallonia
    24
  33. 33Flémalle-HauteWallonia
    23
  34. 34AndenneWallonia
    22
  35. 35NamurWallonia
    21
  36. 36JumetWallonia
    19
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). 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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