SmogRank / Countries / Belgium / 2026
Most polluted cities in Belgium, 2026
39 cities in Belgium ranked by their average PM2.5 so far (273 of 365 days); 35 above the WHO annual guideline (5.0 µg/m³). Worst: Izegem at 10.7 µg/m³, #535 of 2,181 cities in the world. Cleanest: Eupen at 4.3. A city needs measurements on 70% of the days to be ranked.
- 1IzegemFlanders 10.72.1×
- 2EvergemFlanders 9.82.0×
- 3LochristiFlanders 9.51.9×
- 4RoeselareFlanders 9.31.9×
- 4MaldegemFlanders 9.31.9×
- 4HouthalenFlanders 9.31.9×
- 7Knokke-HeistFlanders 9.21.8×
- 8ZwijndrechtFlanders 9.11.8×
- 9MenenFlanders 8.91.8×
- 9GrimbergenFlanders 8.91.8×
- 9AntwerpFlanders 8.91.8×
- 12StabroekFlanders 8.81.8×
- 12GentFlanders 8.81.8×
- 12BeverenFlanders 8.81.8×
- 15KoksijdeFlanders 8.71.7×
- 16KapellenFlanders 8.61.7×
- 16Beersellow-cost sensorsFlanders 8.61.7×
- 18WillebroekFlanders 8.51.7×
- 18MechelenFlanders 8.51.7×
- 20KortrijkFlanders 8.41.7×
- 20GenkFlanders 8.41.7×
- 22HasseltFlanders 8.31.7×
- 23MolFlanders 8.11.6×
- 24ZaventemFlanders 7.71.5×
- 25AarschotFlanders 7.61.5×
- 26Overijselow-cost sensorsFlanders 7.51.5×
- 27BrusselsBrussels Capital 7.31.5×
- 28LiègeWallonia 7.21.4×
- 29MonsWallonia 7.11.4×
- 30Flémalle-HauteWallonia 6.01.2×
- 31RixensartWallonia 5.81.2×
- 31CharleroiWallonia 5.81.2×
- 33TournaiWallonia 5.41.1×
- 33NamurWallonia 5.41.1×
- 35AndenneWallonia 5.31.1×
- 36Marche-en-FamenneWallonia 4.70.9×
- 37JumetWallonia 4.60.9×
- 38AnsWallonia 4.40.9×
- 39EupenWallonia 4.30.9×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+