SmogRank / World / Belgium / Flanders / June 2025

Most polluted cities in Flanders, Belgium, June 2025

23 cities in Flanders, Belgium ranked by their average PM2.5 over the 30 days. Worst: Meulebeke at 9.3 µg/m³, #1,467 of 2,453 cities in the world. Cleanest: Willebroek at 6.1. A city needs measurements on 70% of the days to be ranked.

Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.

← Meulebeke 0% 0.75%0
Every city in Flanders, Belgium ranked for June 2025, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Meulebeke
    0%
  2. 2Genk
    0%
  3. 3Stabroek
    0%
  4. 4Grimbergen
    0%
  5. 5Zelzate
    0%
  6. 5Roeselare
    0%
  7. 5Knokke-Heist
    0%
  8. 8Hasselt
    0%
  9. 9Menen
    0%
  10. 9Houthalen
    0%
  11. 11Mol
    0%
  12. 11Antwerp
    0%
  13. 13Melsele
    0%
  14. 13Beveren
    0%
  15. 15Veurne
    0%
  16. 15Damme
    0%
  17. 17Kapellen
    0%
  18. 18Zaventem
    0%
  19. 18Mechelen
    0%
  20. 20Gent
    0%
  21. 21Kortrijk
    0%
  22. 22Gingelom
    0%
  23. 23Willebroek
    0%
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

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SmogRank, most polluted cities in Flanders, Belgium, PM2.5, June 2025, smogrank.com/be/region/flanders/history/2025-06 (accessed 7 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.