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.
The worst cities in The Netherlands for PM2.5 over the 30 days to 14 Apr 2025: Velsen-Zuid 14.5 µg/m³, Badhoevedorp 14.3 µg/m³ and Schiedam 14.1 µg/m³.
- 1Velsen-ZuidNorth Holland14.5
- 2BadhoevedorpNorth Holland14.3
- 3SchiedamSouth Holland14.1
- 4's-GravenzandeSouth Holland13.4
- 5ZwanenburgNorth Holland13.2
- 6RidderkerkSouth Holland13.2
- 7VelserbroekNorth Holland13.2
- 8SpijkenisseSouth Holland12.8
- 9AmsterdamNorth Holland12.7
- 10The HagueSouth Holland12.6
- 11VenrayLimburg12.5
- 12VenloLimburg12.5
- 13RotterdamSouth Holland12.5
- 14MaassluisSouth Holland12.0
- 15MaarssenUtrecht12.0
- 16BreukelenUtrecht12.0
- 17MedemblikNorth Holland11.8
- 18ZaanstadNorth Holland11.6
- 19TilburgNorth Brabant11.5
- 20WaalreNorth Brabant11.1
+ 16 more cities, 11.1 µg/m³ and below
Cities counted each 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.