SmogRank / History / City race

Cities in Germany, 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 to12 May 2026 That day's board

The worst cities in Germany for PM2.5 over the 30 days to 12 May 2026: Mahlow 12.8 µg/m³, Berlin 11.2 µg/m³ and Starnberg 11.0 µg/m³.

  1. 1MahlowBrandenburg12.8
  2. 2BerlinState of Berlin11.2
  3. 3StarnbergBavaria11.0
  4. 4Herrsching am AmmerseeBavaria11.0
  5. 5UnnaNorth Rhine-Westphalia10.5
  6. 6DortmundNorth Rhine-Westphalia10.5
  7. 7GelsenkirchenNorth Rhine-Westphalia10.3
  8. 8NeubrandenburgMecklenburg-Vorpommern10.1
  9. 9BernburgSaxony-Anhalt10.0
  10. 10OberhausenNorth Rhine-Westphalia9.6
  11. 11FriesoytheLower Saxony9.6
  12. 12BöselLower Saxony9.6
  13. 13KrefeldNorth Rhine-Westphalia9.5
  14. 14DuisburgNorth Rhine-Westphalia9.5
  15. 15OldenburgLower Saxony9.4
  16. 16DüsseldorfNorth Rhine-Westphalia9.4
  17. 17AltenburgThuringia9.4
  18. 18GreizThuringia9.2
  19. 19EssenNorth Rhine-Westphalia9.2
  20. 20BottropNorth Rhine-Westphalia9.2

+ 234 more cities, 9.1 µg/m³ and below

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.