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 to4 Jul 2026 That day's board

The worst cities in The Netherlands for PM2.5 over the 30 days to 4 Jul 2026: Venray 9.1 µg/m³, Schiedam 8.4 µg/m³ and Waalre 7.6 µg/m³.

  1. 1VenrayLimburg9.1
  2. 2SchiedamSouth Holland8.4
  3. 3WaalreNorth Brabant7.6
  4. 4EindhovenNorth Brabant7.6
  5. 5MaassluisSouth Holland7.4
  6. 6Velsen-ZuidNorth Holland6.8
  7. 7NoordwijkerhoutSouth Holland6.8
  8. 8HillegomSouth Holland6.8
  9. 9RotterdamSouth Holland6.7
  10. 10ZwanenburgNorth Holland6.4
  11. 11The HagueSouth Holland6.4
  12. 12VelserbroekNorth Holland6.4
  13. 13ZaanstadNorth Holland6.3
  14. 14TilburgNorth Brabant5.9
  15. 15HaarlemNorth Holland5.7
  16. 16LunterenGelderland5.5
  17. 17BarneveldGelderland5.5
  18. 18UtrechtUtrecht5.4
  19. 19NijmegenGelderland5.3
  20. 20LopikUtrecht5.3

+ 8 more cities, 5.3 µg/m³ and below

Not counted on this day, too few days measured: 's-Gravenzande since 2 Jul 2026, Medemblik since 30 Jun 2026, Spijkenisse since 29 Jun 2026 and 6 more cities.

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.