City report · Catalonia, Spain
Mataró Air quality today
Air quality in Mataró currently reads AQI 30 (Good): Air quality is satisfactory for everyone.
AQI 30
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 3.1
- tree cover
- 11.0%
- trees in this area
- 27.6K
- more trees needed
- 47.7K
Measured across a 2 km radius around Eixample, Mataró, Barcelona, Spain (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Mataró · AQI 30 (Good)
Mataró's tree count comes to 27,611 trees across 10.04 km² of land, 19 points below the 30% tree-cover level considered healthy for this area, so roughly 47,693 more trees would close the gap.
Air quality detail
Air quality in Mataró today: AQI 30, Good
Main pollutant: Ozone · Observed Nov 11, 18:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Polinya, 23.8 km away · median of 7 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.1
PM10
7.0
NO₂
11.0
O₃
64.5
SO₂
1.5
CO
200.0
Data: OpenAQ · AirGradient, EEA, Polinya
- 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 Mataró's daily AQI at 54 on average, from 47 on Nov 6 to an hourly peak of 84 on Nov 10.
Where Mataró stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Mataró: Critically low
11.0% tree cover against a 30% healthy-neighborhood target, across 10.04 km² of land.
Trees in this area
27,611
Target trees
75,304
More trees needed
47,693
CO₂ if planted / yr
1,049 t
Deforestation · 2001–2025
How much forest has Mataró lost?
Since 2001, the area within 10 km of Mataró has lost about 1,250 hectares of forest (about 1,700 football pitches): 14% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 258 hectares (21%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 6 km northwest of the city center.
- Forest lost since 2001
- 1,250 haabout 1,700 football pitches
- Share of its forest
- 14%of what there was in 2000
- Cleared for good
- 258 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 100 hectares a year in 2021–2025, against 96 hectares a year in 2016–2020. The worst year was 2020, when about 204 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 | 5 ha | 8 ha | 12 ha |
| 2002 | 5 ha | 4 ha | 9 ha |
| 2003 | 6 ha | 6 ha | 12 ha |
| 2004 | 9 ha | 8 ha | 17 ha |
| 2005 | 4 ha | under 1 ha | 5 ha |
| 2006 | 16 ha | 16 ha | 32 ha |
| 2007 | 5 ha | 16 ha | 21 ha |
| 2008 | 5 ha | 18 ha | 22 ha |
| 2009 | under 1 ha | 2 ha | 2 ha |
| 2010 | 16 ha | 42 ha | 58 ha |
| 2011 | under 1 ha | 15 ha | 16 ha |
| 2012 | 1 ha | 15 ha | 16 ha |
| 2013 | 2 ha | 10 ha | 12 ha |
| 2014 | 11 ha | 8 ha | 19 ha |
| 2015 | 3 ha | 10 ha | 14 ha |
| 2016 | 16 ha | 61 ha | 78 ha |
| 2017 | 19 ha | 76 ha | 95 ha |
| 2018 | 9 ha | 68 ha | 77 ha |
| 2019 | 5 ha | 23 ha | 28 ha |
| 2020 | 31 ha | 173 ha | 204 ha |
| 2021 | 21 ha | 53 ha | 74 ha |
| 2022 | 21 ha | 44 ha | 65 ha |
| 2023 | 18 ha | 155 ha | 173 ha |
| 2024 | 11 ha | 106 ha | 117 ha |
| 2025 | 19 ha | 54 ha | 73 ha |
What is causing deforestation around Mataró?
- Loggingcan grow back73% · 913 ha
- Towns and roadscleared for good18% · 222 ha
- Wildfirescan grow back6.1% · 76 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
- 11,400 ha
- Forest in 2020
- 11,400 ha
- Overall change
- −52 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Mataró stayed about the same size, at about 11,400 hectares: new forest grew on about 100 hectares, and about 152 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
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Frequently asked
Questions about Mataró
What is the air quality (AQI) in Mataró right now?
The latest reading for Mataró shows an AQI of 30 (Good), measured Nov 11, 18:00 local time by 7 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Polinya, 23.8 km away). The main pollutant is Ozone. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Mataró today?
At AQI 30 (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 Mataró been like this week?
Over the last 7 days, the CAMS air-quality model put Mataró's daily AQI at 54 on average, from 47 on Nov 6 to an hourly peak of 84 on Nov 10. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Mataró lost since 2001?
Since 2001, the area within 10 km of Mataró has lost about 1,250 hectares of forest (about 1,700 football pitches): 14% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 258 hectares (21%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 100 hectares a year in 2021–2025, against 96 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Mataró stayed about the same size, at about 11,400 hectares: new forest grew on about 100 hectares, and about 152 hectares were lost.
What is the tree count in Mataró?
Mataró has an estimated 27,611 trees across the 10.04 km² of land measured — 11.0% tree cover, 19 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Mataró need?
Mataró needs roughly 47,693 more trees to close a 19-point shortfall against its 30% tree-cover target — about 1,049 t of extra CO₂ absorbed per year once grown.
How are Mataró's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near 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 Eixample; the tree count is an estimate derived from that cover.
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