SmogRank / World / The Netherlands / 2026

Most polluted cities in The Netherlands, 2026

29 cities in The Netherlands ranked by their average PM2.5 so far (273 of 365 days); 29 above the WHO annual guideline (5.0 µg/m³). Worst: Haarlem at 12.4 µg/m³, #410 of 2,174 cities in the world. Cleanest: Heerlen at 6.8. A city needs measurements on 70% of the days to be ranked.

← Haarlem 12.4 WHO annual guideline
Every city in The Netherlands ranked for 2026, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1Haarlemlow-cost sensorsNorth Holland
    12.42.5×
  2. 2SchiedamSouth Holland
    11.52.3×
  3. 3's-GravenzandeSouth Holland
    10.42.1×
  4. 3BadhoevedorpNorth Holland
    10.42.1×
  5. 5Velsen-ZuidNorth Holland
    10.32.1×
  6. 6MedemblikNorth Holland
    10.22.0×
  7. 7RidderkerkSouth Holland
    10.02.0×
  8. 8EindhovenNorth Brabant
    9.82.0×
  9. 9TilburgNorth Brabant
    9.71.9×
  10. 9SpijkenisseSouth Holland
    9.71.9×
  11. 9The HagueSouth Holland
    9.71.9×
  12. 9RotterdamSouth Holland
    9.71.9×
  13. 13IJsselsteinUtrecht
    9.61.9×
  14. 13AmsterdamNorth Holland
    9.61.9×
  15. 13VelserbroekNorth Holland
    9.61.9×
  16. 16ZaanstadNorth Holland
    9.41.9×
  17. 16MaassluisSouth Holland
    9.41.9×
  18. 16GroningenGroningen
    9.41.9×
  19. 16BarneveldGelderland
    9.41.9×
  20. 20VenloLimburg
    9.21.8×
  21. 20MaarssenUtrecht
    9.21.8×
  22. 20HillegomSouth Holland
    9.21.8×
  23. 23UtrechtUtrecht
    9.01.8×
  24. 23PurmerendNorth Holland
    9.01.8×
  25. 25BredaNorth Brabant
    8.81.8×
  26. 26EnschedeOverijssel
    8.71.7×
  27. 27VenrayLimburg
    8.41.7×
  28. 28NijmegenGelderland
    8.11.6×
  29. 29HeerlenLimburg
    6.81.4×
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, 2026 · The Netherlands now

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SmogRank, most polluted cities in The Netherlands, PM2.5, 2026 (so far), smogrank.com/nl/history/2026 (accessed 2 Oct 2026).

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