SmogRank / World / Europe / Belgium / Flanders

Most polluted cities in Flanders, Belgium

18 measured cities, last 24 hours; 0 above the WHO 24-hour guideline. Worst: Izegem at 7.8 µg/m³, #619 in the world.

Flanders: 25 measured citiesWallonia: 12 measured citiesBrussels Capital: 1 measured city#18 Maldegem: 3.7 µg/m³#17 Roeselare: 4.0 µg/m³#16 Kortrijk: 4.1 µg/m³#15 Menen: 4.3 µg/m³#14 Knokke-Heist: 4.4 µg/m³#13 Aarschot: 4.5 µg/m³#12 Evergem: 4.6 µg/m³#11 Stabroek: 4.8 µg/m³#9 Zaventem: 4.9 µg/m³#10 Beveren: 4.9 µg/m³#8 Zwijndrecht: 5.1 µg/m³#7 Gent: 5.2 µg/m³#6 Hasselt: 5.4 µg/m³#5 Grimbergen: 5.5 µg/m³#4 Houthalen: 5.7 µg/m³#3 Genk: 5.8 µg/m³#2 Antwerp: 6.1 µg/m³#1 Izegem: 7.8 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Izegem 7.8 WHO 24-hour guideline
Every measured city in Flanders, Belgium, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1Izegem 7.80.5×
  2. 2Antwerp 6.10.4×
  3. 3Genk 5.80.4×
  4. 4Houthalen 5.70.4×
  5. 5Grimbergen 5.50.4×
  6. 6Hasselt 5.40.4×
  7. 7Gent 5.20.3×
  8. 8Zwijndrecht 5.10.3×
  9. 9Zaventem 4.90.3×
  10. 10Beveren 4.90.3×
  11. 11Stabroek 4.80.3×
  12. 12Evergem 4.60.3×
  13. 13Aarschot 4.50.3×
  14. 14Knokke-Heist 4.40.3×
  15. 15Menen 4.30.3×
  16. 16Kortrijk 4.10.3×
  17. 17Roeselare 4.00.3×
  18. 18Maldegem 3.70.2×
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Estimated: cities without a monitor

Flanders cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Brugge≈ 9 µg/m³Fair
Leuven≈ 7 µg/m³Fair
Deurne≈ 9 µg/m³Fair
Aalst≈ 8 µg/m³Fair
Ostend≈ 9 µg/m³Fair
Sint-Niklaas≈ 9 µg/m³Fair
Borgerhout≈ 9 µg/m³Fair
Dendermonde≈ 9 µg/m³Fair
Merksem≈ 9 µg/m³Fair
Turnhout≈ 9 µg/m³Fair
Berchem≈ 9 µg/m³Fair
Lokeren≈ 9 µg/m³Fair
Wilrijk≈ 9 µg/m³Fair
Beringen≈ 8 µg/m³Fair
Dilbeek≈ 8 µg/m³Fair
Heist-op-den-Berg≈ 8 µg/m³Fair
Sint-Truiden≈ 8 µg/m³Fair
Brasschaat≈ 9 µg/m³Fair
Vilvoorde≈ 8 µg/m³Fair
Maasmechelen≈ 8 µg/m³Fair
Waregem≈ 9 µg/m³Fair
Ieper≈ 10 µg/m³Fair
Ninove≈ 8 µg/m³Fair
Geel≈ 8 µg/m³Fair
Halle≈ 8 µg/m³Fair
Hoboken≈ 9 µg/m³Fair
Schoten≈ 9 µg/m³Fair
Lier≈ 9 µg/m³Fair
Sint-Amandsberg≈ 9 µg/m³Fair
Lommel≈ 9 µg/m³Fair
Oudenaarde≈ 9 µg/m³Fair
Tienen≈ 8 µg/m³Fair
Heusden≈ 8 µg/m³Fair
Wevelgem≈ 10 µg/m³Fair
Geraardsbergen≈ 8 µg/m³Fair
Sint-Pieters-Leeuw≈ 8 µg/m³Fair
Kessel-Lo≈ 7 µg/m³Fair
Blauwput≈ 7 µg/m³Fair
Helchteren≈ 8 µg/m³Fair
Tongeren≈ 8 µg/m³Fair

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SmogRank, most polluted cities in Flanders, Belgium, PM2.5, last 24 hours to 2 Oct 2026, 05:00 UTC, smogrank.com/be/region/flanders.

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Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.