City report · Switzerland
Geneva Air quality today
Air quality in Geneva currently reads AQI 21 (Good): Air quality is satisfactory for everyone.
AQI 21
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 3.8
- tree cover
- 27.4%
- trees in this area
- 74.9K
- more trees needed
- 7.1K
Measured across a 2 km radius around Cité, 1204 Genève, Switzerland (12.57 km²), from a satellite image of Sep 18, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Geneva · AQI 21 (Good)
Geneva's tree count comes to 74,889 trees across 10.94 km² of land, 3 points below the 30% tree-cover level considered healthy for this area, so roughly 7,106 more trees would close the gap.
Air quality detail
Air quality in Geneva today: AQI 21, Good
Main pollutant: PM2.5 · Observed Nov 11, 17:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · GAILLARD, 5.4 km away · median of 5 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.8
PM10
6.8
NO₂
10.3
O₃
31.8
SO₂
—
CO
151.4
Data: OpenAQ · EEA
- Outdoor exercise
- A good day to be active outside
- Windows
- Open them to air the house
- Mask
- Not needed
- Air purifier
- Not needed
Over the last 7 days, the CAMS air-quality model put Geneva's daily AQI at 59 on average, from 42 on Nov 10 to an hourly peak of 85 on Nov 7.
Where Geneva stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Geneva: Below target
27.4% tree cover against a 30% healthy-neighborhood target, across 10.94 km² of land.
Trees in this area
74,889
Target trees
81,995
More trees needed
7,106
CO₂ if planted / yr
156.3 t
Deforestation · 2001–2025
How much forest has Geneva lost?
Since 2001, the area within 10 km of Geneva has lost about 93 hectares of forest (about 130 football pitches): 1.7% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 18 hectares (20%) 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
- 93 haabout 130 football pitches
- Share of its forest
- 1.7%of what there was in 2000
- Cleared for good
- 18 hadeforestation: turned into farms, mines or towns
The worst year was 2006, when about 23 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 | under 1 ha | 1 ha |
| 2002 | under 1 ha | 1 ha | 1 ha |
| 2003 | under 1 ha | 1 ha | 1 ha |
| 2004 | under 1 ha | 11 ha | 11 ha |
| 2005 | under 1 ha | 6 ha | 7 ha |
| 2006 | under 1 ha | 23 ha | 23 ha |
| 2007 | under 1 ha | 4 ha | 5 ha |
| 2008 | 1 ha | 3 ha | 4 ha |
| 2009 | 3 ha | 3 ha | 6 ha |
| 2010 | 2 ha | 2 ha | 4 ha |
| 2011 | 1 ha | 6 ha | 7 ha |
| 2012 | under 1 ha | under 1 ha | 2 ha |
| 2013 | 1 ha | under 1 ha | 2 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | under 1 ha | 1 ha | 2 ha |
| 2018 | 1 ha | 2 ha | 3 ha |
| 2019 | under 1 ha | 2 ha | 2 ha |
| 2020 | under 1 ha | 3 ha | 4 ha |
| 2021 | under 1 ha | under 1 ha | 1 ha |
| 2022 | 1 ha | under 1 ha | 2 ha |
| 2023 | 1 ha | under 1 ha | 1 ha |
| 2024 | under 1 ha | 1 ha | 1 ha |
| 2025 | under 1 ha | 2 ha | 2 ha |
What is causing deforestation around Geneva?
- Loggingcan grow back65% · 61 ha
- Towns and roadscleared for good19% · 18 ha
- Unknown causescause unknown14% · 13 ha
Also: farms, pasture and plantations.
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
- 9,560 ha
- Forest in 2020
- 9,780 ha
- Overall change
- +219 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Geneva grew from about 9,560 hectares to 9,780 hectares, a net gain of about 219 hectares (+2.3%). New forest grew on about 296 hectares, while 77 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
In the same region
Measured cities near Geneva
Same 2 km radius, same index — so they compare directly.
- Lyon112.2 km
France
- Tree cover
- 12%
- Air quality
- 29
- Besançon116.8 km
France
- Tree cover
- 30%
- Air quality
- 23
- Grenoble118.6 km
France
- Tree cover
- 21%
- Air quality
- 32
- Dijon150.7 km
France
- Tree cover
- 28%
- Air quality
- 28
Also compared:Geneva vs ZürichGeneva vs Basel
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Frequently asked
Questions about Geneva
What is the air quality (AQI) in Geneva right now?
The latest reading for Geneva shows an AQI of 21 (Good), measured Nov 11, 17:00 local time by 5 ground monitoring stations via OpenAQ (the median of their readings; the nearest is GAILLARD, 5.4 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Geneva today?
At AQI 21 (Good): a good day to be active outside. Windows: open them to air the house. Masks: not needed. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Geneva been like this week?
Over the last 7 days, the CAMS air-quality model put Geneva's daily AQI at 59 on average, from 42 on Nov 10 to an hourly peak of 85 on Nov 7. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Geneva lost since 2001?
Since 2001, the area within 10 km of Geneva has lost about 93 hectares of forest (about 130 football pitches): 1.7% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 18 hectares (20%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Geneva grew from about 9,560 hectares to 9,780 hectares, a net gain of about 219 hectares (+2.3%). New forest grew on about 296 hectares, while 77 hectares were lost.
What is the tree count in Geneva?
Geneva has an estimated 74,889 trees across the 10.94 km² of land measured — 27.4% tree cover, 3 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Geneva need?
Geneva needs roughly 7,106 more trees to close a 3-point shortfall against its 30% tree-cover target — about 156.3 t of extra CO₂ absorbed per year once grown.
How are Geneva's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Cité, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate. 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 Cité; the tree count is an estimate derived from that cover.
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