City report · Angola
Uíge Air quality today
Air quality in Uíge currently reads AQI 38 (Good): Air quality is satisfactory for everyone.
AQI 38
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 6.2
- tree cover
- 16.3%
- trees in this area
- 51.2K
- more trees needed
- 43.0K
Measured across a 2 km radius around Uige, Angola (12.57 km²), from a satellite image of Nov 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Uíge · AQI 38 (Good)
Uíge's tree count comes to 51,208 trees across 12.57 km², 14 points below the 30% tree-cover level considered healthy for this area, so roughly 43,040 more trees would close the gap.
Air quality detail
Air quality in Uíge today: AQI 38, Good
Main pollutant: PM2.5 · Observed Nov 10, 19:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.2
PM10
6.3
NO₂
3.4
O₃
49.0
SO₂
0.8
CO
238.0
- 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 Uíge's daily AQI at 41 on average, from 35 on Nov 4 to an hourly peak of 74 on Nov 10.
Where Uíge stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Uíge: Critically low
16.3% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
51,208
Target trees
94,248
More trees needed
43,040
CO₂ if planted / yr
946.9 t
Deforestation · 2001–2025
How much forest has Uíge lost?
Since 2001, the area within 10 km of Uíge has lost about 4,600 hectares of forest (about 6,400 football pitches): 21% of the forest it had in 2000. Most of it (62%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km south of the city center.
- Forest lost since 2001
- 4,600 haabout 6,400 football pitches
- Share of its forest
- 21%of what there was in 2000
- Cleared for good
- 2,860 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 226 hectares a year in 2021–2025, down from 336 hectares a year in 2016–2020. The worst year was 2017, when about 790 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 | 22 ha | 56 ha | 78 ha |
| 2002 | 1 ha | under 1 ha | 2 ha |
| 2003 | 11 ha | 2 ha | 13 ha |
| 2004 | under 1 ha | under 1 ha | 1 ha |
| 2005 | 15 ha | 4 ha | 20 ha |
| 2006 | under 1 ha | under 1 ha | under 1 ha |
| 2007 | 82 ha | 17 ha | 99 ha |
| 2008 | 22 ha | 9 ha | 31 ha |
| 2009 | 25 ha | 6 ha | 30 ha |
| 2010 | 45 ha | 7 ha | 52 ha |
| 2011 | 34 ha | 10 ha | 43 ha |
| 2012 | 142 ha | 41 ha | 183 ha |
| 2013 | 246 ha | 117 ha | 363 ha |
| 2014 | 349 ha | 196 ha | 545 ha |
| 2015 | 251 ha | 83 ha | 334 ha |
| 2016 | 108 ha | 100 ha | 208 ha |
| 2017 | 378 ha | 412 ha | 790 ha |
| 2018 | 132 ha | 93 ha | 225 ha |
| 2019 | 37 ha | 27 ha | 64 ha |
| 2020 | 249 ha | 143 ha | 392 ha |
| 2021 | 168 ha | 118 ha | 286 ha |
| 2022 | 150 ha | 66 ha | 216 ha |
| 2023 | 79 ha | 38 ha | 117 ha |
| 2024 | 112 ha | 53 ha | 165 ha |
| 2025 | 204 ha | 142 ha | 346 ha |
What is causing deforestation around Uíge?
- Farms, pasture and plantationscleared for good47% · 2,180 ha
- Shifting farmingcan grow back38% · 1,740 ha
- Towns and roadscleared for good14% · 642 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
- 13,300 ha
- Forest in 2020
- 12,000 ha
- Overall change
- −1,240 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Uíge shrank from about 13,300 hectares to 12,000 hectares, a net loss of about 1,240 hectares (−9.4%). New forest grew on about 185 hectares, but 1,430 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 Uíge
Same 2 km radius, same index — so they compare directly.
- Mbanza Kongo174.7 km
Angola
- Tree cover
- 19%
- Air quality
- 52
- N'dalatando188.5 km
Angola
- Tree cover
- 16%
- Air quality
- 33
- Panguíla214.6 km
Angola
- Tree cover
- 4%
- Air quality
- 52
- Kikolo230.6 km
Angola
- Tree cover
- 2%
- Air quality
- 53
- Mulenvos236.0 km
Angola
- Tree cover
- 1%
- Air quality
- 53
- Zango241.6 km
Angola
- Tree cover
- 2%
- Air quality
- 44
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Frequently asked
Questions about Uíge
What is the air quality (AQI) in Uíge right now?
The latest reading for Uíge shows an AQI of 38 (Good), observed Nov 10, 19:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Air quality is satisfactory for everyone.
Is it safe to exercise outside in Uíge today?
At AQI 38 (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 Uíge been like this week?
Over the last 7 days, the CAMS air-quality model put Uíge's daily AQI at 41 on average, from 35 on Nov 4 to an hourly peak of 74 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 Uíge lost since 2001?
Since 2001, the area within 10 km of Uíge has lost about 4,600 hectares of forest (about 6,400 football pitches): 21% of the forest it had in 2000. Most of it (62%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is slowing down: about 226 hectares a year in 2021–2025, down from 336 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Uíge shrank from about 13,300 hectares to 12,000 hectares, a net loss of about 1,240 hectares (−9.4%). New forest grew on about 185 hectares, but 1,430 hectares were lost.
What is the tree count in Uíge?
Uíge has an estimated 51,208 trees across the 12.57 km² measured — 16.3% tree cover, 14 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Uíge need?
Uíge needs roughly 43,040 more trees to close a 14-point shortfall against its 30% tree-cover target — about 946.9 t of extra CO₂ absorbed per year once grown.
How are Uíge'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 Uige; the tree count is an estimate derived from that cover.
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