SmogRank / Countries / The Netherlands / September 2026

Most polluted cities in The Netherlands, September 2026

30 cities in The Netherlands ranked by their average PM2.5 over the 30 days. Worst: Schiedam at 7.7 µg/m³, #697 of 2,332 cities in the world. Cleanest: Haarlem at 4.9. A city needs measurements on 70% of the days to be ranked.

  1. 1SchiedamSouth Holland
    7.7
  2. 2MedemblikNorth Holland
    7.1
  3. 2BredaNorth Brabant
    7.1
  4. 4BarneveldGelderland
    7.0
  5. 5VenrayLimburg
    6.9
  6. 6AmsterdamNorth Holland
    6.7
  7. 7TilburgNorth Brabant
    6.6
  8. 7IJsselsteinUtrecht
    6.6
  9. 7VelserbroekNorth Holland
    6.6
  10. 10UtrechtUtrecht
    6.5
  11. 10's-GravenzandeSouth Holland
    6.5
  12. 10The HagueSouth Holland
    6.5
  13. 10RotterdamSouth Holland
    6.5
  14. 10RidderkerkSouth Holland
    6.5
  15. 15SpijkenisseSouth Holland
    6.4
  16. 15NijmegenGelderland
    6.4
  17. 15MaarssenUtrecht
    6.4
  18. 18ZaanstadNorth Holland
    6.3
  19. 18NijverdalOverijssel
    6.3
  20. 20Velsen-ZuidNorth Holland
    6.2
  21. 20EindhovenNorth Brabant
    6.2
  22. 20BadhoevedorpNorth Holland
    6.2
  23. 23MaassluisSouth Holland
    5.8
  24. 23HillegomSouth Holland
    5.8
  25. 23GroningenGroningen
    5.8
  26. 23EnschedeOverijssel
    5.8
  27. 27HeerlenLimburg
    5.3
  28. 28PurmerendNorth Holland
    5.1
  29. 29HoensbroekLimburg
    4.9
  30. 29Haarlemlow-cost sensorsNorth Holland
    4.9
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, September 2026 · The Netherlands now