SmogRank / Countries / Belgium / June 2026

Most polluted cities in Belgium, June 2026

2 cities in Belgium ranked by their average PM2.5 over the 30 days. Worst: Beersel at 6.3 µg/m³, #1,331 of 1,918 cities in the world. Cleanest: Overijse at 3.8. A city needs measurements on 70% of the days to be ranked.

  1. 1Beersellow-cost sensorsFlanders
    6.3
  2. 2Overijselow-cost sensorsFlanders
    3.8
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, June 2026 · Belgium now