City report · Catalonia, Spain
Reus Air quality today
Air quality in Reus currently reads AQI 28 (Good): Air quality is satisfactory for everyone.
AQI 28
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 5.0
- tree cover
- 17.2%
- trees in this area
- 54.0K
- more trees needed
- 40.2K
Measured across a 2 km radius around Reus, Tarragona, Spain (12.57 km²), from a satellite image of Sep 26, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Reus · AQI 28 (Good)
Reus's tree count comes to 54,035 trees across 12.57 km², 13 points below the 30% tree-cover level considered healthy for this area, so roughly 40,212 more trees would close the gap.
Air quality detail
Air quality in Reus today: AQI 28, 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 · VILA-SECA (IES VILA-SECA), 7 km away · median of 3 stations
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.0
PM10
—
NO₂
15.0
O₃
60.0
SO₂
3.0
CO
—
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 Reus's daily AQI at 47 on average, from 30 on Nov 11 to an hourly peak of 70 on Nov 7.
Where Reus stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Reus: Critically low
17.2% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
54,035
Target trees
94,247
More trees needed
40,212
CO₂ if planted / yr
884.7 t
Deforestation · 2001–2025
How much forest has Reus lost?
Since 2001, the area within 10 km of Reus has lost about 139 hectares of forest (about 190 football pitches): 5.7% of the forest it had in 2000. The biggest cause was logging (33%), after which forest can grow back. About 46 hectares (33%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from September 2017 of a 5 × 5 km area in the city center.
- Forest lost since 2001
- 139 haabout 190 football pitches
- Share of its forest
- 5.7%of what there was in 2000
- Cleared for good
- 46 hadeforestation: turned into farms, mines or towns
The worst year was 2005, when about 49 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 | under 1 ha | under 1 ha | 1 ha |
| 2002 | 2 ha | 1 ha | 3 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 7 ha | 3 ha | 10 ha |
| 2005 | 8 ha | 40 ha | 49 ha |
| 2006 | 3 ha | under 1 ha | 4 ha |
| 2007 | 1 ha | under 1 ha | 1 ha |
| 2008 | 2 ha | 2 ha | 4 ha |
| 2009 | 3 ha | 4 ha | 7 ha |
| 2010 | 3 ha | 2 ha | 5 ha |
| 2011 | 2 ha | under 1 ha | 2 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | 2 ha | 7 ha | 9 ha |
| 2014 | 2 ha | 5 ha | 8 ha |
| 2015 | 2 ha | 4 ha | 6 ha |
| 2016 | 2 ha | under 1 ha | 3 ha |
| 2017 | under 1 ha | 1 ha | 1 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | 1 ha | 2 ha |
| 2020 | 3 ha | under 1 ha | 3 ha |
| 2021 | under 1 ha | under 1 ha | 1 ha |
| 2022 | 1 ha | 7 ha | 8 ha |
| 2023 | under 1 ha | 1 ha | 2 ha |
| 2024 | under 1 ha | 5 ha | 5 ha |
| 2025 | under 1 ha | 4 ha | 5 ha |
What is causing deforestation around Reus?
- Loggingcan grow back33% · 45 ha
- Wildfirescan grow back32% · 44 ha
- Farms, pasture and plantationscleared for good19% · 27 ha
Also: towns and roads, 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
- 4,220 ha
- Forest in 2020
- 4,390 ha
- Overall change
- +174 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Reus grew from about 4,220 hectares to 4,390 hectares, a net gain of about 174 hectares (+4.1%). New forest grew on about 249 hectares, while 74 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 Reus
What is the air quality (AQI) in Reus right now?
The latest reading for Reus shows an AQI of 28 (Good), measured Nov 11, 17:00 local time by 3 ground monitoring stations via OpenAQ (the median of their readings; the nearest is VILA-SECA (IES VILA-SECA), 7 km away). The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Reus today?
At AQI 28 (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 Reus been like this week?
Over the last 7 days, the CAMS air-quality model put Reus's daily AQI at 47 on average, from 30 on Nov 11 to an hourly peak of 70 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 Reus lost since 2001?
Since 2001, the area within 10 km of Reus has lost about 139 hectares of forest (about 190 football pitches): 5.7% of the forest it had in 2000. The biggest cause was logging (33%), after which forest can grow back. About 46 hectares (33%) was deforestation: forest cleared for good for farms, mines or towns. Comparing satellite maps from 2000 and 2020, the forest around Reus grew from about 4,220 hectares to 4,390 hectares, a net gain of about 174 hectares (+4.1%). New forest grew on about 249 hectares, while 74 hectares were lost.
What is the tree count in Reus?
Reus has an estimated 54,035 trees across the 12.57 km² measured — 17.2% tree cover, 13 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Reus need?
Reus needs roughly 40,212 more trees to close a 13-point shortfall against its 30% tree-cover target — about 884.7 t of extra CO₂ absorbed per year once grown.
How are Reus's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Reus, 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 Reus; the tree count is an estimate derived from that cover.
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