SmogRank / World / Europe / Germany / Hesse

Most polluted cities in Hesse, Germany

24 measured cities, this year; 23 above the WHO annual guideline. Worst: Kassel at 10.6 µg/m³, #868 in the world.

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.

Saxony-Anhalt: 16 measured citiesThuringia: 15 measured citiesBavaria: 21 measured citiesRheinland-Pfalz: 10 measured citiesSaarland: 4 measured citiesLower Saxony: 27 measured citiesNorth Rhine-Westphalia: 34 measured citiesBaden-Wurttemberg: 27 measured citiesHesse: 24 measured cities#24 Gersfeld: 4.7 µg/m³#23 Glashütten: 5.7 µg/m³#22 Großalmerode: 6.9 µg/m³#21 Edertal: 7.2 µg/m³#19 Zierenberg: 7.4 µg/m³#20 Fürth: 7.4 µg/m³#18 Riedstadt: 8.4 µg/m³#14 Michelstadt: 8.6 µg/m³#15 Kelsterbach: 8.6 µg/m³#16 Hanau am Main: 8.6 µg/m³#17 Bensheim: 8.6 µg/m³#13 Bebra: 8.8 µg/m³#10 Wetzlar: 8.9 µg/m³#11 Marburg an der Lahn: 8.9 µg/m³#12 Fulda: 8.9 µg/m³#7 Wiesbaden: 9.0 µg/m³#8 Rüsselsheim am Main: 9.0 µg/m³#9 Darmstadt: 9.0 µg/m³#6 Gießen: 9.1 µg/m³#5 Limburg an der Lahn: 9.3 µg/m³#4 Frankfurt am Main: 9.5 µg/m³#3 Sulzbach: 10.0 µg/m³#2 Lampertheim: 10.1 µg/m³#1 Kassel: 10.6 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
← Bebra 3% 2%0
Every measured city in Hesse, Germany, one column each, ranked by unhealthy days: height is the share of its measured days that were unhealthy, colour its average. Point at it to read a city; tap to open it.
  1. 1Bebralast full day 3 Oct 3%
  2. 2Limburg an der Lahn 2%
  3. 3Sulzbach 2%
  4. 4Rüsselsheim am Main 2%
  5. 5Wiesbaden 2%
  6. 6Frankfurt am Main 2%
  7. 7Darmstadt 2%
  8. 8Lampertheim 2%
  9. 9Kelsterbach 2%
  10. 10Bensheim 2%
  11. 11Fulda 2%
  12. 12Michelstadt 2%
  13. 13Riedstadt 2%
  14. 14Hanau am Main 2%
  15. 15Kassel 2%
  16. 16Marburg an der Lahn 1%
  17. 17Edertal 1%
  18. 18Zierenberglast full day 3 Oct 1%
  19. 19Gießen 1%
  20. 20Fürthlast full day 2 Oct 1%
  21. 21Wetzlar 1%
  22. 22Großalmerode 0%
  23. 23Glashütten 0%
  24. 24Gersfeld 0%
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

Estimated: cities without a monitor

Hesse cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Offenbach≈ 8 µg/m³Good
Bad Homburg vor der Höhe≈ 7 µg/m³Good
Oberursel≈ 8 µg/m³Good
Rodgau≈ 8 µg/m³Good
Dreieich≈ 8 µg/m³Good
Maintal≈ 8 µg/m³Good
Langen≈ 8 µg/m³Good
Hofheim am Taunus≈ 10 µg/m³Moderate
Bad Vilbel≈ 8 µg/m³Good
Neu-Isenburg≈ 8 µg/m³Good
Dietzenbach≈ 8 µg/m³Good
Mörfelden-Walldorf≈ 10 µg/m³Moderate
Viernheim≈ 10 µg/m³Moderate
Bad Hersfeld≈ 7 µg/m³Good
Bad Nauheim≈ 7 µg/m³Good
Taunusstein≈ 8 µg/m³Good
Mühlheim am Main≈ 8 µg/m³Good
Kelkheim≈ 10 µg/m³Moderate
Baunatal≈ 8 µg/m³Good
Friedberg≈ 7 µg/m³Good
Weiterstadt≈ 10 µg/m³Moderate
Idstein≈ 8 µg/m³Good
Heppenheim an der Bergstrasse≈ 8 µg/m³Good
Pfungstadt≈ 8 µg/m³Good
Obertshausen≈ 8 µg/m³Good
Griesheim≈ 10 µg/m³Moderate
Butzbach≈ 7 µg/m³Good
Hattersheim≈ 10 µg/m³Moderate
Korbach≈ 7 µg/m³Good
Friedrichsdorf≈ 7 µg/m³Good
Groß-Gerau≈ 10 µg/m³Moderate
Bad Soden am Taunus≈ 10 µg/m³Moderate
Dillenburg≈ 7 µg/m³Good
Büdingen≈ 6 µg/m³Good
Eschborn≈ 10 µg/m³Moderate
Gelnhausen≈ 6 µg/m³Good
Karben≈ 7 µg/m³Good
Stadtallendorf≈ 7 µg/m³Good
Seligenstadt≈ 8 µg/m³Good
Groß-Umstadt≈ 8 µg/m³Good

Bad-air episodes in Hesse

Times when many cities around here had PM2.5 at twice their usual or more on the same days.

Use this board

SmogRank, most polluted cities in Hesse, Germany, PM2.5, this year to 6 Oct 2026, 23:00 UTC, smogrank.com/de/region/hesse?w=year.

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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.

Updated 2026-10-06 23:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.