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 to22 Mar 2023 That day's board

The worst cities in The Netherlands for PM2.5 over the 30 days to 22 Mar 2023: Venlo 11.4 µg/m³, Eindhoven 11.1 µg/m³ and Tilburg 9.8 µg/m³.

  1. 1VenloLimburg11.4
  2. 2EindhovenNorth Brabant11.1
  3. 3TilburgNorth Brabant9.8
  4. 4VenrayLimburg9.5
  5. 5UtrechtUtrecht9.4
  6. 6Velsen-ZuidNorth Holland9.3
  7. 7BadhoevedorpNorth Holland9.3
  8. 8BarneveldGelderland9.1
  9. 9NijmegenGelderland9.0
  10. 10HeerlenLimburg9.0
  11. 11's-GravenzandeSouth Holland8.9
  12. 12RotterdamSouth Holland8.9
  13. 13PurmerendNorth Holland8.9
  14. 14HillegomSouth Holland8.9
  15. 15RidderkerkSouth Holland8.8
  16. 16AmsterdamNorth Holland8.8
  17. 17SpijkenisseSouth Holland8.6
  18. 18MaassluisSouth Holland8.5
  19. 19IJsselsteinUtrecht8.5
  20. 20BredaNorth Brabant8.3

+ 7 more cities, 8.2 µg/m³ and below

Not counted on this day, too few days measured: Zaanstad since 5 Feb 2023, Wormer since 5 Feb 2023, Lopik since 5 Feb 2023 and 4 more cities. Days missing from the source archive fall in this window, so fewer countries are counted.

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.