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 to10 Apr 2025 That day's board

The worst cities in The Netherlands for PM2.5 over the 30 days to 10 Apr 2025: Velsen-Zuid 13.2 µg/m³, Badhoevedorp 13.2 µg/m³ and Schiedam 12.7 µg/m³.

  1. 1Velsen-ZuidNorth Holland13.2
  2. 2BadhoevedorpNorth Holland13.2
  3. 3SchiedamSouth Holland12.7
  4. 4VenrayLimburg11.8
  5. 5's-GravenzandeSouth Holland11.8
  6. 6VenloLimburg11.7
  7. 7RidderkerkSouth Holland11.6
  8. 8MaarssenUtrecht11.6
  9. 9BreukelenUtrecht11.6
  10. 10ZwanenburgNorth Holland11.5
  11. 11AmsterdamNorth Holland11.5
  12. 12VelserbroekNorth Holland11.5
  13. 13The HagueSouth Holland11.3
  14. 14MedemblikNorth Holland11.1
  15. 15SpijkenisseSouth Holland11.0
  16. 16TilburgNorth Brabant10.9
  17. 17RotterdamSouth Holland10.9
  18. 18WaalreNorth Brabant10.6
  19. 19EindhovenNorth Brabant10.6
  20. 20MaassluisSouth Holland10.4

+ 16 more cities, 10.1 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.