City report · Provence-Alpes-Côte d'Azur, France
Marseille Air quality today
Air quality in Marseille currently reads AQI 48 (Good): Air quality is satisfactory for everyone.
AQI 48
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 8.7
- tree cover
- 9.4%
- trees in this area
- 27.9K
- more trees needed
- 61.1K
Measured across a 2 km radius around Noailles, 13001 Marseille, France (12.57 km²), from a satellite image of Sep 15, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Marseille · AQI 48 (Good)
Marseille's tree count comes to 27,877 trees across 11.87 km² of land, 21 points below the 30% tree-cover level considered healthy for this area, so roughly 61,093 more trees would close the gap.
Air quality detail
Air quality in Marseille today: AQI 48, 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 · MARSEILLE 5 AVENUES, 1.4 km away · median of 3 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.7
PM10
18.0
NO₂
24.2
O₃
69.9
SO₂
0.6
CO
141.0
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 Marseille's daily AQI at 31 on average, from 21 on Nov 5 to an hourly peak of 56 on Nov 7.
Where Marseille stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Marseille: Critically low
9.4% tree cover against a 30% healthy-neighborhood target, across 11.87 km² of land.
Trees in this area
27,877
Target trees
88,970
More trees needed
61,093
CO₂ if planted / yr
1,344 t
Deforestation · 2001–2025
How much forest has Marseille lost?
Since 2001, the area within 10 km of Marseille has lost about 347 hectares of forest (about 490 football pitches): 25% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 69 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
- 347 haabout 490 football pitches
- Share of its forest
- 25%of what there was in 2000
- Cleared for good
- 69 hadeforestation: turned into farms, mines or towns
The worst year was 2009, when about 192 hectares of forest were lost, mostly to wildfires.
Hectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 7 ha | 12 ha | 19 ha |
| 2002 | 3 ha | 1 ha | 4 ha |
| 2003 | 6 ha | 7 ha | 13 ha |
| 2004 | 3 ha | under 1 ha | 3 ha |
| 2005 | 12 ha | 3 ha | 15 ha |
| 2006 | 2 ha | 2 ha | 4 ha |
| 2007 | 3 ha | under 1 ha | 4 ha |
| 2008 | 3 ha | 12 ha | 15 ha |
| 2009 | 9 ha | 183 ha | 192 ha |
| 2010 | 1 ha | under 1 ha | 2 ha |
| 2011 | 2 ha | under 1 ha | 3 ha |
| 2012 | 2 ha | under 1 ha | 3 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | 2 ha | under 1 ha | 2 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | 1 ha | 25 ha | 26 ha |
| 2017 | 3 ha | 8 ha | 11 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | under 1 ha | under 1 ha | under 1 ha |
| 2021 | 4 ha | under 1 ha | 4 ha |
| 2022 | 1 ha | under 1 ha | 1 ha |
| 2023 | under 1 ha | 11 ha | 11 ha |
| 2024 | 2 ha | under 1 ha | 2 ha |
| 2025 | 1 ha | 13 ha | 14 ha |
What is causing deforestation around Marseille?
- Wildfirescan grow back76% · 263 ha
- Towns and roadscleared for good17% · 61 ha
- Loggingcan grow back3.1% · 11 ha
Also: mining and energy, unknown causes.
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
- 4,260 ha
- Forest in 2020
- 4,310 ha
- Overall change
- +51 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Marseille stayed about the same size, at about 4,310 hectares: new forest grew on about 129 hectares, and about 79 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 Marseille
Same 2 km radius, same index — so they compare directly.
- Aix-en-Provence26.3 km
France
- Tree cover
- 39%
- Air quality
- 53
- Toulon48.3 km
France
- Tree cover
- 21%
- Air quality
- 56
- Nîmes102.0 km
France
- Tree cover
- 34%
- Air quality
- 53
- Montpellier126.4 km
France
- Tree cover
- 29%
- Air quality
- 53
- Monaco171.6 km
Monaco
- Tree cover
- 42%
- Air quality
- 65
Also compared:Marseille vs ParisMarseille vs LyonMarseille vs Toulouse
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Frequently asked
Questions about Marseille
What is the air quality (AQI) in Marseille right now?
The latest reading for Marseille shows an AQI of 48 (Good), measured Nov 11, 17:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is MARSEILLE 5 AVENUES, 1.4 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Marseille today?
At AQI 48 (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 Marseille been like this week?
Over the last 7 days, the CAMS air-quality model put Marseille's daily AQI at 31 on average, from 21 on Nov 5 to an hourly peak of 56 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 Marseille lost since 2001?
Since 2001, the area within 10 km of Marseille has lost about 347 hectares of forest (about 490 football pitches): 25% of the forest it had in 2000. Most of it was lost to wildfires, so much of it can grow back. About 69 hectares (20%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Marseille stayed about the same size, at about 4,310 hectares: new forest grew on about 129 hectares, and about 79 hectares were lost.
What is the tree count in Marseille?
Marseille has an estimated 27,877 trees across the 11.87 km² of land measured — 9.4% tree cover, 21 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Marseille need?
Marseille needs roughly 61,093 more trees to close a 21-point shortfall against its 30% tree-cover target — about 1,344 t of extra CO₂ absorbed per year once grown.
How are Marseille's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Noailles, 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 Noailles; the tree count is an estimate derived from that cover.
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