SmogRank / World / Germany / Baden-Wurttemberg / January 2026
Most polluted cities in Baden-Wurttemberg, Germany, January 2026
26 cities in Baden-Wurttemberg, Germany ranked by their average PM2.5 over the 31 days. Worst: Heilbronn at 23.2 µg/m³, #300 of 2,593 cities in the world. Cleanest: Kirchzarten at 2.4. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
- 1Ulm 21%
- 1Tübingen 21%
- 3Heilbronn 19%
- 4Mannheim 17%
- 5Schwäbisch Hall 17%
- 6Reutlingen 17%
- 7Kehl 15%
- 7Heidelberg 15%
- 9Tauberbischofsheim 14%
- 10Wiesloch 14%
- 11Pforzheim 14%
- 12Karlsruhe 14%
- 13Stuttgart 14%
- 14Ludwigsburg 14%
- 15Filderstadt 11%
- 16Eggenstein-Leopoldshafen 10%
- 17Aalen 10%
- 18Baden-Baden 10%
- 19Neuenburg am Rhein 7%
- 20Friedrichshafen 3%
- 21Freiburg 3%
- 22Biberach an der Riß 0%
- 23Gärtringen 0%
- 24Villingen-Schwenningen 0%
- 25Trochtelfingen 0%
- 26Kirchzarten 0%
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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SmogRank, most polluted cities in Baden-Wurttemberg, Germany, PM2.5, January 2026, smogrank.com/de/region/baden-wurttemberg/history/2026-01 (accessed 6 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.