City report · Galicia, Spain
Ourense Air quality today
Air quality in Ourense currently reads AQI 28 (Good): Air quality is satisfactory for everyone.
Air quality right now
AQI 28
Good
- PM2.5, fine particles (µg/m³)
- 4.6
- tree cover
- 32.1%
- trees in this area
- 99.2K
- more trees needed
- 0
Measured across a 2 km radius around Ourense, Province of Ourense, Spain (12.57 km²), from a satellite image of Sep 25, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ourense · AQI 28 (Good)
Ourense's tree count comes to 99,232 trees across 12.37 km² of land, already at or above the 30% tree-cover level considered healthy for this area.
Air quality detail
Air quality in Ourense today: AQI 28, Good
Main pollutant: PM2.5 · Observed Nov 11, 04:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 205 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 5 station cities within 205 km, e.g. Vigo and Braga
Health signal
Air quality is satisfactory for everyone.
PM2.5
4.6
PM10
4.3
NO₂
2.9
O₃
59.0
SO₂
0.3
CO
131.0
- 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 Ourense's daily AQI at 27 on average, from 13 on Nov 10 to an hourly peak of 60 on Nov 6.
Where Ourense stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ourense: Healthy tree cover
32.1% tree cover against a 30% healthy-neighborhood target, across 12.37 km² of land.
Trees in this area
99,232
Target trees
99,232
More trees needed
0
CO₂ if planted / yr
0 kg
Deforestation · 2001–2025
How much forest has Ourense lost?
Since 2001, the area within 10 km of Ourense has lost about 2,640 hectares of forest (about 3,700 football pitches): 16% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 497 hectares (19%) was deforestation: forest cleared for good for farms, mines or towns.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 2,640 haabout 3,700 football pitches
- Share of its forest
- 16%of what there was in 2000
- Cleared for good
- 497 hadeforestation: turned into farms, mines or towns
Forest loss has stayed about the same: about 112 hectares a year in 2021–2025, against 117 hectares a year in 2016–2020. The worst year was 2007, when about 244 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 | 41 ha | 67 ha | 107 ha |
| 2002 | 28 ha | 64 ha | 92 ha |
| 2003 | 9 ha | 23 ha | 33 ha |
| 2004 | 26 ha | 86 ha | 112 ha |
| 2005 | 29 ha | 50 ha | 79 ha |
| 2006 | 26 ha | 128 ha | 154 ha |
| 2007 | 35 ha | 209 ha | 244 ha |
| 2008 | 23 ha | 51 ha | 74 ha |
| 2009 | 17 ha | 49 ha | 66 ha |
| 2010 | 14 ha | 30 ha | 44 ha |
| 2011 | 11 ha | 70 ha | 81 ha |
| 2012 | 9 ha | 69 ha | 78 ha |
| 2013 | 9 ha | 100 ha | 109 ha |
| 2014 | 10 ha | 120 ha | 130 ha |
| 2015 | 8 ha | 85 ha | 94 ha |
| 2016 | 16 ha | 117 ha | 133 ha |
| 2017 | 6 ha | 62 ha | 67 ha |
| 2018 | 40 ha | 94 ha | 134 ha |
| 2019 | 18 ha | 61 ha | 79 ha |
| 2020 | 16 ha | 153 ha | 169 ha |
| 2021 | 14 ha | 74 ha | 88 ha |
| 2022 | 41 ha | 134 ha | 175 ha |
| 2023 | 10 ha | 101 ha | 111 ha |
| 2024 | 13 ha | 44 ha | 57 ha |
| 2025 | 26 ha | 105 ha | 131 ha |
What is causing deforestation around Ourense?
- Loggingcan grow back62% · 1,630 ha
- Wildfirescan grow back19% · 509 ha
- Towns and roadscleared for good18% · 467 ha
Also: farms, pasture and plantations, 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
- 18,300 ha
- Forest in 2020
- 18,700 ha
- Overall change
- +435 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ourense grew from about 18,300 hectares to 18,700 hectares, a net gain of about 435 hectares (+2.4%). New forest grew on about 849 hectares, while 414 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 Ourense
What is the air quality (AQI) in Ourense right now?
The latest reading for Ourense shows an AQI of 28 (Good), observed Nov 11, 04:00 local time via Open-Meteo / CAMS, corrected with 5 ground-station cities within 205 km, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Ourense 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 Ourense been like this week?
Over the last 7 days, the CAMS air-quality model put Ourense's daily AQI at 27 on average, from 13 on Nov 10 to an hourly peak of 60 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Ourense lost since 2001?
Since 2001, the area within 10 km of Ourense has lost about 2,640 hectares of forest (about 3,700 football pitches): 16% of the forest it had in 2000. Most of it was lost to logging, so much of it can grow back. About 497 hectares (19%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss has stayed about the same: about 112 hectares a year in 2021–2025, against 117 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Ourense grew from about 18,300 hectares to 18,700 hectares, a net gain of about 435 hectares (+2.4%). New forest grew on about 849 hectares, while 414 hectares were lost.
What is the tree count in Ourense?
Ourense has an estimated 99,232 trees across the 12.37 km² of land measured — 32.1% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Ourense need?
Ourense has already reached its tree-cover target, so no additional trees are needed to close the gap.
How are Ourense's air quality and tree cover measured?
Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors. 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 Ourense; the tree count is an estimate derived from that cover.
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