SmogRank / World / Germany / Hesse / March 2025
Most polluted cities in Hesse, Germany, March 2025
23 cities in Hesse, Germany ranked by their average PM2.5 over the 31 days. Worst: Kassel at 19.5 µg/m³, #604 of 2,809 cities in the world. Cleanest: Fürth at 10.9. 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.
- 1Kassel 15%
- 2Großalmerode 8%
- 3Zierenberg 8%
- 4Frankfurt am Main 4%
- 5Gießen 4%
- 6Limburg an der Lahn 4%
- 7Fulda 4%
- 8Wetzlar 4%
- 9Marburg an der Lahn 4%
- 10Edertal 4%
- 11Sulzbach 0%
- 12Rüsselsheim am Main 0%
- 13Lampertheim 0%
- 14Kelsterbach 0%
- 14Bebra 0%
- 16Wiesbaden 0%
- 17Hanau am Main 0%
- 18Bensheim 0%
- 19Darmstadt 0%
- 20Michelstadt 0%
- 21Glashütten 0%
- 21Gersfeld 0%
- 23Fürth 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 Hesse, Germany, PM2.5, March 2025, smogrank.com/de/region/hesse/history/2025-03 (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.