City report · Catalonia, Spain
Barcelona Air quality today
Air quality in Barcelona currently reads AQI 31 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 31
Good
- PM2.5, fine particles (µg/m³)
- 5.6
- tree cover
- 9.6%
- trees in this area
- 30.2K
- more trees needed
- 64.1K
Measured across a 2 km radius around L'Antiga Esquerra de l'Eixample, Eixample, Barcelona, Spain (12.57 km²), from a satellite image of Sep 15, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Barcelona · AQI 31 (Good)
Barcelona's tree count comes to 30,159 trees across 12.57 km², 20 points below the 30% tree-cover level considered healthy for this area, so roughly 64,088 more trees would close the gap.
Air quality detail
Air quality in Barcelona today: AQI 31, 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 · Barcelona - Camp d'en Grassot, 1.6 km away · median of 15 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.6
PM10
11.0
NO₂
17.0
O₃
61.0
SO₂
2.0
CO
200.0
Data: OpenAQ · AirGradient, EEA, Elías P., Timea Kiss, gonsalwy, J.BCN
- 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 Barcelona's daily AQI at 64 on average, from 37 on Nov 4 to an hourly peak of 101 on Nov 8.
Where Barcelona stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Barcelona: Critically low
9.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
30,159
Target trees
94,247
More trees needed
64,088
CO₂ if planted / yr
1,410 t
Deforestation · 2001–2025
How much forest has Barcelona lost?
Since 2001, the area within 10 km of Barcelona has lost about 48 hectares of forest (about 68 football pitches): 1.1% of the forest it had in 2000. Most of it (53%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from August 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 48 haabout 68 football pitches
- Share of its forest
- 1.1%of what there was in 2000
- Cleared for good
- 26 hadeforestation: turned into farms, mines or towns
The worst year was 2023, 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 | 2 ha | 3 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | 1 ha | under 1 ha | 1 ha |
| 2004 | 2 ha | under 1 ha | 2 ha |
| 2005 | 2 ha | under 1 ha | 3 ha |
| 2006 | under 1 ha | under 1 ha | 1 ha |
| 2007 | under 1 ha | under 1 ha | 1 ha |
| 2008 | 2 ha | under 1 ha | 3 ha |
| 2009 | 4 ha | under 1 ha | 4 ha |
| 2010 | 2 ha | 2 ha | 4 ha |
| 2011 | under 1 ha | under 1 ha | 1 ha |
| 2012 | under 1 ha | 4 ha | 4 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | 2 ha | under 1 ha | 3 ha |
| 2015 | under 1 ha | under 1 ha | 2 ha |
| 2016 | under 1 ha | 3 ha | 3 ha |
| 2017 | 1 ha | under 1 ha | 2 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | 2 ha | under 1 ha | 2 ha |
| 2021 | 1 ha | under 1 ha | 1 ha |
| 2022 | under 1 ha | under 1 ha | under 1 ha |
| 2023 | 1 ha | 4 ha | 6 ha |
| 2024 | under 1 ha | 1 ha | 1 ha |
| 2025 | 2 ha | under 1 ha | 2 ha |
What is causing deforestation around Barcelona?
- Towns and roadscleared for good53% · 26 ha
- Loggingcan grow back32% · 15 ha
- Wildfirescan grow back3.3% · 2 ha
Also: 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
- 5,960 ha
- Forest in 2020
- 6,070 ha
- Overall change
- +116 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Barcelona stayed about the same size, at about 6,070 hectares: new forest grew on about 122 hectares, and about 6 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 Barcelona
Same 2 km radius, same index — so they compare directly.
- Sabadell17.7 km
Spain
- Tree cover
- 16%
- Air quality
- 20
- Terrassa23.1 km
Spain
- Tree cover
- 8%
- Air quality
- 29
- Mataró29.3 km
Spain
- Tree cover
- 11%
- Air quality
- 30
- Tarragona82.0 km
Spain
- Tree cover
- 22%
- Air quality
- 55
- Girona86.2 km
Spain
- Tree cover
- 44%
- Air quality
- 14
- Reus91.7 km
Spain
- Tree cover
- 17%
- Air quality
- 55
Also compared:Barcelona vs MadridBarcelona vs ValenciaBarcelona vs ZaragozaBarcelona vs SevillaBarcelona vs Palma
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Frequently asked
Questions about Barcelona
What is the air quality (AQI) in Barcelona right now?
The latest reading for Barcelona shows an AQI of 31 (Good), measured Nov 11, 17:00 local time by 15 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Barcelona - Camp d'en Grassot, 1.6 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Barcelona today?
At AQI 31 (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 Barcelona been like this week?
Over the last 7 days, the CAMS air-quality model put Barcelona's daily AQI at 64 on average, from 37 on Nov 4 to an hourly peak of 101 on Nov 8. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Barcelona lost since 2001?
Since 2001, the area within 10 km of Barcelona has lost about 48 hectares of forest (about 68 football pitches): 1.1% of the forest it had in 2000. Most of it (53%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Barcelona stayed about the same size, at about 6,070 hectares: new forest grew on about 122 hectares, and about 6 hectares were lost.
What is the tree count in Barcelona?
Barcelona has an estimated 30,159 trees across the 12.57 km² measured — 9.6% tree cover, 20 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Barcelona need?
Barcelona needs roughly 64,088 more trees to close a 20-point shortfall against its 30% tree-cover target — about 1,410 t of extra CO₂ absorbed per year once grown.
How are Barcelona's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near L'Antiga Esquerra de l'Eixample, 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 L'Antiga Esquerra de l'Eixample; the tree count is an estimate derived from that cover.
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