City report · Grand Est, France
Strasbourg Air quality today
Air quality in Strasbourg currently reads AQI 145 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 145
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 41.0
- tree cover
- 26.3%
- trees in this area
- 82.0K
- more trees needed
- 27.1K
Measured across a 2 km radius around Place Kléber, 67000 Strasbourg, France (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Strasbourg · AQI 145 (Unhealthy for sensitive groups)
Strasbourg's tree count comes to 82,046 trees across 12.48 km² of land, 9 points below the 35% tree-cover level considered healthy for this area, so roughly 27,141 more trees would close the gap.
Air quality detail
Air quality in Strasbourg today: AQI 145, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 03:00 local time via Open-Meteo / CAMS, corrected with 12 ground-station cities within 125 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 12 station cities within 125 km, e.g. Freiburg im Breisgau and Karlsruhe
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
41.0
PM10
13.8
NO₂
29.5
O₃
5.0
SO₂
0.8
CO
327.0
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Strasbourg's daily AQI at 90 on average, from 71 on Nov 5 to an hourly peak of 130 on Nov 6.
Where Strasbourg stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Strasbourg: Below target
26.3% tree cover against a 35% healthy-neighborhood target, across 12.48 km² of land.
Trees in this area
82,046
Target trees
109,187
More trees needed
27,141
CO₂ if planted / yr
597.1 t
Deforestation · 2001–2025
How much forest has Strasbourg lost?
Since 2001, the area within 10 km of Strasbourg has lost about 65 hectares of forest (about 91 football pitches): 1.5% of the forest it had in 2000. The biggest cause was logging (42%), after which forest can grow back. About 22 hectares (34%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 65 haabout 91 football pitches
- Share of its forest
- 1.5%of what there was in 2000
- Cleared for good
- 22 hadeforestation: turned into farms, mines or towns
The worst year was 2008, when about 6 hectares of forest were lost.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | under 1 ha | 3 ha | 3 ha |
| 2002 | under 1 ha | 1 ha | 1 ha |
| 2003 | 2 ha | under 1 ha | 3 ha |
| 2004 | 3 ha | 2 ha | 4 ha |
| 2005 | 2 ha | 4 ha | 6 ha |
| 2006 | 2 ha | 1 ha | 3 ha |
| 2007 | under 1 ha | 2 ha | 3 ha |
| 2008 | under 1 ha | 6 ha | 6 ha |
| 2009 | 2 ha | under 1 ha | 3 ha |
| 2010 | under 1 ha | 1 ha | 2 ha |
| 2011 | under 1 ha | 2 ha | 2 ha |
| 2012 | under 1 ha | 5 ha | 5 ha |
| 2013 | 1 ha | 2 ha | 3 ha |
| 2014 | under 1 ha | 2 ha | 2 ha |
| 2015 | under 1 ha | under 1 ha | 1 ha |
| 2016 | under 1 ha | under 1 ha | 1 ha |
| 2017 | 2 ha | 1 ha | 3 ha |
| 2018 | under 1 ha | 4 ha | 4 ha |
| 2019 | 1 ha | under 1 ha | 1 ha |
| 2020 | under 1 ha | 1 ha | 2 ha |
| 2021 | 3 ha | under 1 ha | 3 ha |
| 2022 | under 1 ha | 1 ha | 1 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | 3 ha | 3 ha |
What is causing deforestation around Strasbourg?
- Loggingcan grow back42% · 27 ha
- Towns and roadscleared for good33% · 22 ha
- Unknown causescause unknown25% · 17 ha
Causes for 2025 are estimates, based on what caused forest loss in the same places up to 2024.
Forest gained and lost, 2000–2020
- Forest in 2000
- 7,780 ha
- Forest in 2020
- 8,040 ha
- Overall change
- +265 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Strasbourg grew from about 7,780 hectares to 8,040 hectares, a net gain of about 265 hectares (+3.4%). New forest grew on about 356 hectares, while 92 hectares were lost.
These 2000 and 2020 maps, from the University of Maryland, count any land with trees taller than 5 m as forest, including plantations and orchards. Forest that was cut or burned and had grown back by 2020 counts in both years, so the loss here is smaller than the yearly figures.
These figures cover everything within 10 km of the city center, a wider area than the report above, because forest is usually lost at a city's edges.
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. Forest gained and lost 2000–2020: Potapov et al. 2022, UMD GLAD Global Land Cover and Land Use Change, CC BY 4.0. Images: contains modified Copernicus Sentinel data. How it's measured
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Frequently asked
Questions about Strasbourg
What is the air quality (AQI) in Strasbourg right now?
The latest reading for Strasbourg shows an AQI of 145 (Unhealthy for sensitive groups), observed Nov 11, 03:00 local time via Open-Meteo / CAMS, corrected with 12 ground-station cities within 125 km, US EPA index. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Strasbourg today?
At AQI 145 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Strasbourg been like this week?
Over the last 7 days, the CAMS air-quality model put Strasbourg's daily AQI at 90 on average, from 71 on Nov 5 to an hourly peak of 130 on Nov 6. On 2 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Strasbourg lost since 2001?
Since 2001, the area within 10 km of Strasbourg has lost about 65 hectares of forest (about 91 football pitches): 1.5% of the forest it had in 2000. The biggest cause was logging (42%), after which forest can grow back. About 22 hectares (34%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Strasbourg grew from about 7,780 hectares to 8,040 hectares, a net gain of about 265 hectares (+3.4%). New forest grew on about 356 hectares, while 92 hectares were lost.
What is the tree count in Strasbourg?
Strasbourg has an estimated 82,046 trees across the 12.48 km² of land measured — 26.3% tree cover, 9 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Strasbourg need?
Strasbourg needs roughly 27,141 more trees to close a 9-point shortfall against its 35% tree-cover target — about 597.1 t of extra CO₂ absorbed per year once grown.
How are Strasbourg's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Place Kléber; the tree count is an estimate derived from that cover.
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