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 to25 Apr 2023 That day's board

The worst cities in Germany for PM2.5 over the 30 days to 25 Apr 2023: Krefeld 13.8 µg/m³, Mahlow 13.0 µg/m³ and Teltow 12.1 µg/m³.

  1. 1KrefeldNorth Rhine-Westphalia13.8
  2. 2MahlowBrandenburg13.0
  3. 3TeltowBrandenburg12.1
  4. 4BremenBremen11.8
  5. 5LudwigslustMecklenburg-Vorpommern11.7
  6. 6BerlinState of Berlin11.7
  7. 7Frankfurt (Oder)Brandenburg11.6
  8. 8OldenburgLower Saxony11.4
  9. 9EberswaldeBrandenburg11.4
  10. 10KielSchleswig-Holstein11.3
  11. 11DuisburgNorth Rhine-Westphalia11.3
  12. 12HamburgHamburg11.1
  13. 13BremerhavenBremen11.0
  14. 14Blankenfelde-MahlowBrandenburg11.0
  15. 15BützowMecklenburg-Vorpommern10.9
  16. 16BöselLower Saxony10.7
  17. 17Oettingen in BayernBavaria10.6
  18. 18MünsterNorth Rhine-Westphalia10.5
  19. 19ItzehoeSchleswig-Holstein10.5
  20. 20CottbusBrandenburg10.5

+ 165 more cities, 10.4 µg/m³ and below

Not counted on this day, too few days measured: Neuwied since 30 Mar 2023, Luckenwalde since 30 Mar 2023, Kempten (Allgäu) since 30 Mar 2023 and 9 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.