Germany · Hesse · 4 cities
Air quality in Hesse today The AQI right now, city by city
Right now, Kassel has the cleanest air of the 4 cities we track in Hesse (AQI 55, Moderate), and Darmstadt the worst (AQI 76, Moderate). Wiesbaden has the most tree cover, at 55.0% — #3 of 71 cities measured in Germany.
Every city is measured the same way, over the same 2 km around its center: the air quality right now, from ground stations where there are any, and its tree cover.
Average right now
AQI 63
Moderate
- cities tracked
- 4
- average tree cover
- 40.8%
- Germany: 38.4%
- worst air now: Darmstadt
- 76
- cleanest air now: Kassel
- 55
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Hesse · average AQI 63
Air quality today across Hesse, city by city
| Frankfurt am Main | 64Moderate | 33.6% | — | #49 of 71 |
|---|---|---|---|---|
| Wiesbaden | 56Moderate | 55.0% | — | #3 of 71 |
| Kassel | 55Moderate | 40.9% | — | #26 of 71 |
| Darmstadt | 76Moderate | 33.7% | — | #47 of 71 |
Air quality is the US AQI from ground monitoring stations via OpenAQ where available, otherwise the Open-Meteo / CAMS model, refreshed hourly. Tree cover is measured within 2 km of each city center from Sentinel-2 imagery; the rank compares every city measured in Germany.
Deforestation · 2001–2025
How much forest has Hesse lost?
Since 2001, Hesse has lost about 138,000 hectares of forest (about 190,000 football pitches): 14% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 2,100 hectares (1.5%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 138,000 haabout 190,000 football pitches
- Share of its forest
- 14%of what there was in 2000
- Cleared for good
- 2,100 hadeforestation: turned into farms, mines or towns
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 53 ha | 677 ha | 730 ha |
| 2002 | 26 ha | 351 ha | 377 ha |
| 2003 | 21 ha | 181 ha | 202 ha |
| 2004 | 81 ha | 4,810 ha | 4,890 ha |
| 2005 | 80 ha | 1,850 ha | 1,940 ha |
| 2006 | 61 ha | 2,570 ha | 2,630 ha |
| 2007 | 121 ha | 12,200 ha | 12,300 ha |
| 2008 | 137 ha | 8,950 ha | 9,090 ha |
| 2009 | 326 ha | 1,690 ha | 2,020 ha |
| 2010 | 181 ha | 13,500 ha | 13,700 ha |
| 2011 | 36 ha | 546 ha | 582 ha |
| 2012 | 77 ha | 1,510 ha | 1,590 ha |
| 2013 | 42 ha | 704 ha | 746 ha |
| 2014 | 53 ha | 776 ha | 829 ha |
| 2015 | 47 ha | 558 ha | 605 ha |
| 2016 | 44 ha | 878 ha | 922 ha |
| 2017 | 41 ha | 1,240 ha | 1,280 ha |
| 2018 | 78 ha | 4,910 ha | 4,980 ha |
| 2019 | 120 ha | 14,400 ha | 14,500 ha |
| 2020 | 133 ha | 27,500 ha | 27,600 ha |
| 2021 | 120 ha | 20,300 ha | 20,400 ha |
| 2022 | 61 ha | 5,870 ha | 5,930 ha |
| 2023 | 75 ha | 5,200 ha | 5,270 ha |
| 2024 | 40 ha | 3,000 ha | 3,040 ha |
| 2025 | 48 ha | 1,640 ha | 1,690 ha |
Forest loss is slowing down: about 7,270 hectares a year in 2021–2025, down from 9,850 hectares a year in 2016–2020. The worst year was 2020, when about 27,600 hectares of forest were lost.
What is causing deforestation in Hesse?
- Loggingcan grow back98% · 135,000 ha
Also: towns and roads, mining and energy, farms, pasture and plantations, storms, floods and other natural causes, wildfires, unknown causes.
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Source: Hansen/UMD/Google/USGS/NASA, Global Forest Change (GFC-2025-v1.13); causes: WRI/Google DeepMind drivers of forest loss; both CC BY 4.0, summed by Airleaf for each area. How it's measured
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