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 to16 Oct 2024 That day's board

The worst cities in The Netherlands for PM2.5 over the 30 days to 16 Oct 2024: The Hague 9.8 µg/m³, Maarssen 9.5 µg/m³ and Breukelen 9.5 µg/m³.

  1. 1The HagueSouth Holland9.8
  2. 2MaarssenUtrecht9.5
  3. 3BreukelenUtrecht9.5
  4. 4BredaNorth Brabant8.6
  5. 5UtrechtUtrecht8.3
  6. 6LopikUtrecht8.1
  7. 7IJsselsteinUtrecht8.1
  8. 8TilburgNorth Brabant7.7
  9. 9RotterdamSouth Holland7.5
  10. 10NoordwijkerhoutSouth Holland7.2
  11. 11HillegomSouth Holland7.2
  12. 12NijmegenGelderland7.0
  13. 13WaalreNorth Brabant6.9
  14. 14LunterenGelderland6.9
  15. 15GroningenGroningen6.9
  16. 16EindhovenNorth Brabant6.9
  17. 17BarneveldGelderland6.9
  18. 18HeerlenLimburg6.7
  19. 19VenrayLimburg6.1
  20. 20MedemblikNorth Holland6.0

+ 2 more cities, 6.0 µg/m³ and below

Not counted on this day, too few days measured: Zwanenburg since 24 Aug 2024, Zaanstad since 24 Aug 2024, Velserbroek since 24 Aug 2024 and 11 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.