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 to7 Sep 2025 That day's board

The worst cities in The Netherlands for PM2.5 over the 30 days to 7 Sep 2025: Tilburg 9.3 µg/m³, Schiedam 8.8 µg/m³ and Badhoevedorp 8.3 µg/m³.

  1. 1TilburgNorth Brabant9.3
  2. 2SchiedamSouth Holland8.8
  3. 3BadhoevedorpNorth Holland8.3
  4. 4VenrayLimburg7.1
  5. 5VenloLimburg7.1
  6. 6Velsen-ZuidNorth Holland6.9
  7. 7's-GravenzandeSouth Holland6.9
  8. 8ZwanenburgNorth Holland6.7
  9. 9RidderkerkSouth Holland6.7
  10. 10VelserbroekNorth Holland6.7
  11. 11RotterdamSouth Holland6.6
  12. 12NoordwijkerhoutSouth Holland6.5
  13. 13MedemblikNorth Holland6.5
  14. 14HillegomSouth Holland6.5
  15. 15BredaNorth Brabant6.5
  16. 16WormerNorth Holland6.2
  17. 17SpijkenisseSouth Holland6.2
  18. 18PurmerendNorth Holland6.2
  19. 19AmsterdamNorth Holland6.2
  20. 20WaalreNorth Brabant6.0

+ 16 more cities, 6.0 µg/m³ and below

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.