SmogRank / World / Germany / Hesse / December 2025
Most polluted cities in Hesse, Germany, December 2025
24 cities in Hesse, Germany ranked by their average PM2.5 over the 31 days. Worst: Sulzbach at 13.0 µg/m³, #860 of 2,960 cities in the world. Cleanest: Gersfeld at 2.1. 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.
- 1Sulzbach 0%
- 2Limburg an der Lahn 0%
- 2Lampertheim 0%
- 2Kassel 0%
- 5Wetzlar 0%
- 5Bensheim 0%
- 7Wiesbaden 0%
- 8Gießen 0%
- 9Rüsselsheim am Main 0%
- 9Frankfurt am Main 0%
- 11Michelstadt 0%
- 11Marburg an der Lahn 0%
- 13Hanau am Main 0%
- 14Fulda 0%
- 15Kelsterbach 0%
- 15Darmstadt 0%
- 15Riedstadt 0%
- 18Bebra 0%
- 19Fürth 0%
- 20Zierenberg 0%
- 20Edertal 0%
- 22Großalmerode 0%
- 23Glashütten 0%
- 24Gersfeld 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
All cities in the world, December 2025 · All cities in Germany, December 2025 · Hesse now
Use this board
SmogRank, most polluted cities in Hesse, Germany, PM2.5, December 2025, smogrank.com/de/region/hesse/history/2025-12 (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.