SmogRank / World / The Netherlands / November 2025

Most polluted cities in The Netherlands, November 2025

27 cities in The Netherlands ranked by their average PM2.5 over the 30 days. Worst: Haarlem at 14.2 µg/m³, #603 of 2,370 cities in the world. Cleanest: Heerlen at 5.1. A city needs measurements on 70% of the days to be ranked.

← Haarlem 14.2 µg/m³ 20 µg/m³0
Every city in The Netherlands ranked for November 2025, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Haarlemlow-cost sensorsNorth Holland
    61
  2. 2SchiedamSouth Holland
    54
  3. 3EindhovenNorth Brabant
    51
  4. 4UtrechtUtrecht
    50
  5. 4GroningenGroningen
    50
  6. 4BredaNorth Brabant
    50
  7. 7VenloLimburg
    49
  8. 7BarneveldGelderland
    49
  9. 7BadhoevedorpNorth Holland
    49
  10. 10Velsen-ZuidNorth Holland
    48
  11. 11EnschedeOverijssel
    48
  12. 12RotterdamSouth Holland
    46
  13. 13NijmegenGelderland
    45
  14. 14VenrayLimburg
    43
  15. 15HillegomSouth Holland
    41
  16. 16VelserbroekNorth Holland
    41
  17. 17TilburgNorth Brabant
    40
  18. 18MedemblikNorth Holland
    39
  19. 19SpijkenisseSouth Holland
    39
  20. 19AmsterdamNorth Holland
    39
  21. 21IJsselsteinUtrecht
    38
  22. 22MaarssenUtrecht
    38
  23. 23ZaanstadNorth Holland
    37
  24. 24The HagueSouth Holland
    36
  25. 24PurmerendNorth Holland
    36
  26. 24MaassluisSouth Holland
    36
  27. 27HeerlenLimburg
    28
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, November 2025 · The Netherlands now

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SmogRank, most polluted cities in The Netherlands, PM2.5, November 2025, smogrank.com/nl/history/2025-11 (accessed 2 Oct 2026).

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