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 to22 Jun 2023 That day's board

The worst cities in Germany for PM2.5 over the 30 days to 22 Jun 2023: Krefeld 15.8 µg/m³, Roetgen 14.9 µg/m³ and Trier 13.1 µg/m³.

  1. 1KrefeldNorth Rhine-Westphalia15.8
  2. 2RoetgenNorth Rhine-Westphalia14.9
  3. 3TrierRheinland-Pfalz13.1
  4. 4DattelnNorth Rhine-Westphalia13.0
  5. 5DuisburgNorth Rhine-Westphalia12.8
  6. 6Ludwigshafen am RheinRheinland-Pfalz12.6
  7. 7WeidenBavaria11.7
  8. 8WormsRheinland-Pfalz11.5
  9. 9MahlowBrandenburg11.5
  10. 10KiefersfeldenBavaria11.5
  11. 11SpeyerRheinland-Pfalz11.4
  12. 12SaalfeldThuringia11.4
  13. 13EssenNorth Rhine-Westphalia11.4
  14. 14EisenhüttenstadtBrandenburg11.4
  15. 15Bad KreuznachRheinland-Pfalz11.4
  16. 16UnnaNorth Rhine-Westphalia11.3
  17. 17DüsseldorfNorth Rhine-Westphalia11.3
  18. 18Neuenburg am RheinBaden-Wurttemberg11.2
  19. 19GelsenkirchenNorth Rhine-Westphalia11.2
  20. 20WittenbergSaxony-Anhalt11.2

+ 176 more cities, 11.1 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.