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 to8 Jun 2026 That day's board

The worst cities in The Netherlands for PM2.5 over the 30 days to 8 Jun 2026: Schiedam 8.6 µg/m³, 's-Gravenzande 8.1 µg/m³ and Haarlem 8.1 µg/m³.

  1. 1SchiedamSouth Holland8.6
  2. 2's-GravenzandeSouth Holland8.1
  3. 3HaarlemNorth Holland8.1
  4. 4Velsen-ZuidNorth Holland7.9
  5. 5RidderkerkSouth Holland7.5
  6. 6NoordwijkerhoutSouth Holland7.3
  7. 7HillegomSouth Holland7.3
  8. 8TilburgNorth Brabant7.1
  9. 9MedemblikNorth Holland7.1
  10. 10MaassluisSouth Holland7.1
  11. 11WaalreNorth Brabant6.9
  12. 12SpijkenisseSouth Holland6.9
  13. 13RotterdamSouth Holland6.9
  14. 14EindhovenNorth Brabant6.9
  15. 15ZwanenburgNorth Holland6.8
  16. 16BadhoevedorpNorth Holland6.8
  17. 17VelserbroekNorth Holland6.8
  18. 18ZaanstadNorth Holland6.7
  19. 19BredaNorth Brabant6.7
  20. 20AmsterdamNorth Holland6.7

+ 16 more cities, 6.6 µg/m³ and below

Not counted on this day, too few days measured: Venray since 15 May 2026.

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.