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 28 Jan 2023: Eindhoven 13.3 µg/m³, Tilburg 10.9 µg/m³ and Zaanstad 10.8 µg/m³.
- 1EindhovenNorth Brabant13.3
- 2TilburgNorth Brabant10.9
- 3ZaanstadNorth Holland10.8
- 4WormerNorth Holland10.7
- 5Velsen-ZuidNorth Holland10.4
- 6BadhoevedorpNorth Holland10.2
- 7VenrayLimburg10.0
- 8PurmerendNorth Holland9.9
- 9NijmegenGelderland9.9
- 10RotterdamSouth Holland9.7
- 11BredaNorth Brabant9.7
- 12AmsterdamNorth Holland9.5
- 13UtrechtUtrecht9.4
- 14's-GravenzandeSouth Holland9.3
- 15RidderkerkSouth Holland9.2
- 16BreukelenUtrecht9.2
- 17NoordwijkerhoutSouth Holland9.1
- 18HillegomSouth Holland8.9
- 19MaassluisSouth Holland8.7
- 20The HagueSouth Holland8.6
+ 8 more cities, the next at 8.5 µg/m³
Days missing from the source archive fall in this window, so fewer countries are counted.
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 reader for China's network. Turkey's network doesn't answer requests from outside the country, so we can't read it. Most cities there are missing from this board, not clean. Why.