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 to21 Apr 2023 That day's board

The worst cities in The Netherlands for PM2.5 over the 30 days to 21 Apr 2023: 's-Gravenzande 10.1 µg/m³, Velsen-Zuid 9.8 µg/m³ and Wormer 9.7 µg/m³.

  1. 1's-GravenzandeSouth Holland10.1
  2. 2Velsen-ZuidNorth Holland9.8
  3. 3WormerNorth Holland9.7
  4. 4PurmerendNorth Holland9.7
  5. 5NoordwijkerhoutSouth Holland9.7
  6. 6HillegomSouth Holland9.6
  7. 7WaalreNorth Brabant9.4
  8. 8EindhovenNorth Brabant9.2
  9. 9ZaanstadNorth Holland9.1
  10. 10RotterdamSouth Holland9.1
  11. 11MaassluisSouth Holland9.0
  12. 12AmsterdamNorth Holland8.9
  13. 13RidderkerkSouth Holland8.8
  14. 14VenrayLimburg8.5
  15. 15UtrechtUtrecht8.2
  16. 16BadhoevedorpNorth Holland8.0
  17. 17The HagueSouth Holland7.9
  18. 18LunterenGelderland7.8
  19. 19LopikUtrecht7.8
  20. 20GroningenGroningen7.8

+ 11 more cities, 7.7 µg/m³ and below

Not counted on this day, too few days measured: Spijkenisse since 30 Mar 2023, Velserbroek since 30 Mar 2023, Venlo since 28 Mar 2023 and Schiedam since 25 Mar 2023. 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.