City report · Normandy, France
Rouen Air quality today
Air quality in Rouen currently reads AQI 26 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 26
Good
- PM2.5, fine particles (µg/m³)
- 3.9
- tree cover
- 35.8%
- trees in this area
- 108K
- more trees needed
- 0
Measured across a 2 km radius around Rouen, France (12.57 km²), from a satellite image of Sep 14, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Rouen · AQI 26 (Good)
Rouen's tree count comes to 107,633 trees across 12.03 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Rouen today: AQI 26, Good
Main pollutant: Ozone · Observed Nov 11, 16:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Petit Quevilly, 3.4 km away · median of 3 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.9
PM10
5.9
NO₂
14.4
O₃
55.8
SO₂
—
CO
234.0
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 Rouen's daily AQI at 73 on average, from 60 on Nov 11 to an hourly peak of 122 on Nov 7.
Where Rouen stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Rouen: Healthy tree cover
35.8% tree cover against a 30% healthy-neighborhood target, across 12.03 km² of land.
Trees in this area
107,633
Target trees
107,633
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Rouen lost?
Since 2001, the area within 10 km of Rouen has lost about 696 hectares of forest (about 970 football pitches): 6.4% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 41 hectares (5.8%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from June 2017 of a 5 × 5 km area about 7 km east of the city center.
- Forest lost since 2001
- 696 haabout 970 football pitches
- Share of its forest
- 6.4%of what there was in 2000
- Cleared for good
- 41 hadeforestation: turned into farms, mines or towns
The worst year was 2010, when about 213 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 | 1 ha | 38 ha | 40 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | 1 ha | 2 ha |
| 2004 | under 1 ha | 1 ha | 1 ha |
| 2005 | 5 ha | 53 ha | 58 ha |
| 2006 | 2 ha | 9 ha | 11 ha |
| 2007 | 4 ha | 4 ha | 8 ha |
| 2008 | under 1 ha | 2 ha | 2 ha |
| 2009 | 1 ha | 4 ha | 5 ha |
| 2010 | 9 ha | 204 ha | 213 ha |
| 2011 | under 1 ha | 1 ha | 1 ha |
| 2012 | under 1 ha | 32 ha | 33 ha |
| 2013 | under 1 ha | 3 ha | 3 ha |
| 2014 | 1 ha | 16 ha | 18 ha |
| 2015 | under 1 ha | 19 ha | 19 ha |
| 2016 | under 1 ha | 24 ha | 25 ha |
| 2017 | 2 ha | 9 ha | 11 ha |
| 2018 | under 1 ha | 46 ha | 47 ha |
| 2019 | 2 ha | 26 ha | 28 ha |
| 2020 | 3 ha | 18 ha | 20 ha |
| 2021 | 4 ha | 24 ha | 28 ha |
| 2022 | under 1 ha | 12 ha | 13 ha |
| 2023 | under 1 ha | 16 ha | 16 ha |
| 2024 | under 1 ha | 79 ha | 80 ha |
| 2025 | 2 ha | 15 ha | 17 ha |
What is causing deforestation around Rouen?
- Loggingcan grow back92% · 637 ha
- Towns and roadscleared for good5.3% · 37 ha
- Unknown causescause unknown2.6% · 18 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
- 13,400 ha
- Forest in 2020
- 13,900 ha
- Overall change
- +531 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Rouen grew from about 13,400 hectares to 13,900 hectares, a net gain of about 531 hectares (+4%). New forest grew on about 891 hectares, while 360 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 Rouen
Same 2 km radius, same index — so they compare directly.
- Le Havre71.9 km
France
- Tree cover
- 16%
- Air quality
- 45
- Cergy-Pontoise84.1 km
France
- Tree cover
- 42%
- Air quality
- 28
- Argenteuil100.0 km
France
- Tree cover
- 24%
- Air quality
- 32
- Amiens100.2 km
France
- Tree cover
- 25%
- Air quality
- 44
- 100.3 km
- Tree cover
- 48%
- Air quality
- 37
- Boulogne-Billancourt107.1 km
France
- Tree cover
- 30%
- Air quality
- 38
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Frequently asked
Questions about Rouen
What is the air quality (AQI) in Rouen right now?
The latest reading for Rouen shows an AQI of 26 (Good), measured Nov 11, 16:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Petit Quevilly, 3.4 km away). The main pollutant is Ozone. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Rouen today?
At AQI 26 (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 Rouen been like this week?
Over the last 7 days, the CAMS air-quality model put Rouen's daily AQI at 73 on average, from 60 on Nov 11 to an hourly peak of 122 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 Rouen lost since 2001?
Since 2001, the area within 10 km of Rouen has lost about 696 hectares of forest (about 970 football pitches): 6.4% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 41 hectares (5.8%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Rouen grew from about 13,400 hectares to 13,900 hectares, a net gain of about 531 hectares (+4%). New forest grew on about 891 hectares, while 360 hectares were lost.
What is the tree count in Rouen?
Rouen has an estimated 107,633 trees across the 12.03 km² of land measured — 35.8% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Rouen need?
Rouen has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Rouen's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Rouen, 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 Rouen; the tree count is an estimate derived from that cover.
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