France · Pays de la Loire · 3 cities
Air quality in Pays de la Loire today The AQI right now, city by city
Right now, Nantes has the cleanest air of the 3 cities we track in Pays de la Loire (AQI 21, Good), and Angers the worst (AQI 54, Moderate). Le Mans has the most tree cover, at 27.9% — #15 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 40
Average right now
Good
- cities tracked
- 3
- average tree cover
- 24.2%
- France: 25.5%
- worst air now: Angers
- 54
- cleanest air now: Nantes
- 21
Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf, refreshed hourly.
Pays de la Loire · average AQI 40
Air quality today across Pays de la Loire, city by city
| Nantes | 21Good | 21.8% | 24.2K | #26 of 39 |
|---|---|---|---|---|
| Angers | 54Moderate | 22.9% | 21.9K | #24 of 39 |
| Le Mans | 46Good | 27.9% | 6.6K | #15 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 Pays de la Loire lost?
Since 2001, Pays de la Loire has lost about 11,600 hectares of forest (about 16,000 football pitches): 4.7% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 231 hectares (2%) was deforestation: forest cleared for good for farms, mines or towns.
- Forest lost since 2001
- 11,600 haabout 16,000 football pitches
- Share of its forest
- 4.7%of what there was in 2000
- Cleared for good
- 231 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 | 5 ha | 112 ha | 117 ha |
| 2002 | 5 ha | 118 ha | 123 ha |
| 2003 | 13 ha | 162 ha | 175 ha |
| 2004 | 13 ha | 757 ha | 770 ha |
| 2005 | 5 ha | 138 ha | 143 ha |
| 2006 | 14 ha | 280 ha | 294 ha |
| 2007 | 9 ha | 475 ha | 484 ha |
| 2008 | 32 ha | 1,530 ha | 1,560 ha |
| 2009 | 25 ha | 77 ha | 102 ha |
| 2010 | 27 ha | 649 ha | 676 ha |
| 2011 | 10 ha | 212 ha | 222 ha |
| 2012 | 18 ha | 212 ha | 230 ha |
| 2013 | 3 ha | 108 ha | 111 ha |
| 2014 | 6 ha | 244 ha | 250 ha |
| 2015 | 3 ha | 229 ha | 232 ha |
| 2016 | 8 ha | 307 ha | 315 ha |
| 2017 | 3 ha | 300 ha | 303 ha |
| 2018 | 10 ha | 436 ha | 446 ha |
| 2019 | 2 ha | 629 ha | 631 ha |
| 2020 | 1 ha | 849 ha | 850 ha |
| 2021 | under 1 ha | 1,420 ha | 1,420 ha |
| 2022 | under 1 ha | 501 ha | 502 ha |
| 2023 | 5 ha | 531 ha | 535 ha |
| 2024 | 7 ha | 668 ha | 675 ha |
| 2025 | 6 ha | 385 ha | 391 ha |
Forest loss is speeding up: about 704 hectares a year in 2021–2025, up from 509 hectares a year in 2016–2020. The worst year was 2008, when about 1,560 hectares of forest were lost.
What is causing deforestation in Pays de la Loire?
- Loggingcan grow back94% · 10,900 ha
- Farms, pasture and plantationscleared for good1.4% · 157 ha
- Unknown causescause unknown3.6% · 417 ha
Also: towns and roads, mining and energy, storms, floods and other natural 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
Other regions in France
Clean-air buying guides
Cleaner air at home in Pays de la Loire
Picked by tested clean-air delivery rate (CADR), noise and running cost, from independent test labels. No brand pays to be listed.
- The best air purifiers for wildfire smoke and smog
Air purifiers that keep up with wildfire smoke and winter smog, ranked by verified smoke CADR, with the room each one clears on a smoky day.
- The best air purifiers for bedrooms: quiet picks sized for your room
Quiet HEPA air purifiers for bedrooms, compared on what matters at night: noise on the lowest setting (from 20 dB), verified room size and filter cost.
- The best air purifiers under $200
Good HEPA air purifiers under $200 at the makers' own prices, compared on verified clean air, room size and what the filters cost each year.
Your own street