France · Grand Est · 5 cities
Air quality in Grand Est today The AQI right now, city by city
Right now, Metz has the cleanest air of the 5 cities we track in Grand Est (AQI 23, Good), and Mulhouse the worst (AQI 34, Good). Metz has the most tree cover, at 29.7% — #8 of 39 cities measured in France.
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.
AQI 49
Average right now
Good
- cities tracked
- 5
- average tree cover
- 24.5%
- France: 25.5%
- worst air now: Mulhouse
- 34
- cleanest air now: Metz
- 23
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Grand Est · average AQI 49
Air quality today across Grand Est, city by city
| Strasbourg | 138Unhealthy for sensitive groups | 26.3% | 27.1K | #18 of 39 |
|---|---|---|---|---|
| Reims | 29Good | 16.9% | 41.1K | #34 of 39 |
| Metz | 23Good | 29.7% | 907 | #8 of 39 |
| Mulhouse | 34Good | 28.3% | 5.3K | #14 of 39 |
| Nancy | 23Good | 21.2% | 27.3K | #27 of 39 |
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 France.
Deforestation · 2001–2025
How much forest has Grand Est lost?
Since 2001, Grand Est has lost about 2,870 hectares of forest (about 4,000 football pitches): 3.1% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 124 hectares (4.3%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 2,870 haabout 4,000 football pitches
- Share of its forest
- 3.1%of what there was in 2000
- Cleared for good
- 124 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 | 2 ha | 39 ha | 41 ha |
| 2002 | 2 ha | 21 ha | 23 ha |
| 2003 | 3 ha | 17 ha | 20 ha |
| 2004 | 6 ha | 62 ha | 68 ha |
| 2005 | 5 ha | 23 ha | 28 ha |
| 2006 | 3 ha | 44 ha | 47 ha |
| 2007 | 2 ha | 37 ha | 39 ha |
| 2008 | 12 ha | 96 ha | 108 ha |
| 2009 | 24 ha | 81 ha | 105 ha |
| 2010 | 9 ha | 178 ha | 187 ha |
| 2011 | 2 ha | 61 ha | 63 ha |
| 2012 | 6 ha | 261 ha | 267 ha |
| 2013 | 1 ha | 34 ha | 35 ha |
| 2014 | 1 ha | 99 ha | 100 ha |
| 2015 | 1 ha | 94 ha | 95 ha |
| 2016 | 3 ha | 139 ha | 142 ha |
| 2017 | 3 ha | 128 ha | 131 ha |
| 2018 | 11 ha | 150 ha | 161 ha |
| 2019 | 4 ha | 202 ha | 206 ha |
| 2020 | 3 ha | 138 ha | 141 ha |
| 2021 | 12 ha | 271 ha | 283 ha |
| 2022 | 3 ha | 116 ha | 119 ha |
| 2023 | 3 ha | 204 ha | 207 ha |
| 2024 | 2 ha | 156 ha | 157 ha |
| 2025 | 2 ha | 97 ha | 98 ha |
Forest loss has stayed about the same: about 173 hectares a year in 2021–2025, against 156 hectares a year in 2016–2020. The worst year was 2021, when about 283 hectares of forest were lost.
What is causing deforestation in Grand Est?
- Loggingcan grow back85% · 2,450 ha
- Towns and roadscleared for good3% · 87 ha
- Farms, pasture and plantationscleared for good1.3% · 38 ha
Also: 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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