SmogRank / History / City race

Cities in The Netherlands, worst air first, day by day

Each measured city's average over the 30 days to every day since January 2023, worst first. Find your own city to follow it through the race, or keep to one country.

CountriesCities
The 30 days to6 Nov 2025 That day's board

The worst cities in The Netherlands for PM2.5 over the 30 days to 6 Nov 2025: Schiedam 7.8 µg/m³, Waalre 6.8 µg/m³ and Eindhoven 6.8 µg/m³.

  1. 1SchiedamSouth Holland7.8
  2. 2WaalreNorth Brabant6.8
  3. 3EindhovenNorth Brabant6.8
  4. 4BredaNorth Brabant6.6
  5. 5Velsen-ZuidNorth Holland6.2
  6. 6VenloLimburg6.1
  7. 7BadhoevedorpNorth Holland6.1
  8. 8The HagueSouth Holland5.9
  9. 9UtrechtUtrecht5.8
  10. 10LunterenGelderland5.8
  11. 11BarneveldGelderland5.8
  12. 12RotterdamSouth Holland5.6
  13. 13NoordwijkerhoutSouth Holland5.6
  14. 14NijmegenGelderland5.6
  15. 15HillegomSouth Holland5.6
  16. 16VenrayLimburg5.4
  17. 17's-GravenzandeSouth Holland5.4
  18. 18LopikUtrecht5.0
  19. 19IJsselsteinUtrecht5.0
  20. 20EnschedeOverijssel4.9

+ 14 more cities, 4.8 µg/m³ and below

Not counted on this day, too few days measured: Wormer since 13 Oct 2025, Purmerend since 13 Oct 2025 and Ridderkerk since 9 Oct 2025.

30 days7 days
GoodModerateSensitive groupsUnhealthyVery unhealthyHazardousWHO 24-hour guideline, 15 µg/m³Fades where it stood: not counted that day

A city's number is its average over the 30 days, shown only when 21 of them were measured (5 of 7 on the 7-day race), the same minimum as the 30- and 7-day boards. A city whose monitors go quiet fades out where it stood rather than sliding down, so a gap never reads as cleaner air. Some large countries are thin or missing because their monitors' licences don't allow reuse. How we rank.

Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites; we are building the readers for them. Most cities there are missing from this board, not clean. Why.