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.
The worst cities in Germany for PM2.5 over the 30 days to 22 Jul 2023: Weiden 11.5 µg/m³, Krefeld 11.5 µg/m³ and Ludwigshafen am Rhein 10.6 µg/m³.
- 1WeidenBavaria11.5
- 2KrefeldNorth Rhine-Westphalia11.5
- 3Ludwigshafen am RheinRheinland-Pfalz10.6
- 4SpeyerRheinland-Pfalz10.3
- 5GelsenkirchenNorth Rhine-Westphalia10.3
- 6DattelnNorth Rhine-Westphalia10.3
- 7NurembergBavaria10.2
- 8DuisburgNorth Rhine-Westphalia9.9
- 9MahlowBrandenburg9.8
- 10TrierRheinland-Pfalz9.7
- 11GroßostheimBavaria9.7
- 12ElsenfeldBavaria9.7
- 13PassauBavaria9.6
- 14MunichBavaria9.6
- 15Halle (Saale)Saxony-Anhalt9.6
- 16EisenhüttenstadtBrandenburg9.6
- 17HalberstadtSaxony-Anhalt9.5
- 18UnnaNorth Rhine-Westphalia9.4
- 19BurghausenBavaria9.4
- 20Neu-UlmBavaria9.3
+ 174 more cities, 9.3 µg/m³ and below
Not counted on this day, too few days measured: Wittingen since 22 Jul 2023. 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 readers for them. Most cities there are missing from this board, not clean. Why.