City report · Republic of the Congo
Dolisie Air quality today
Air quality in Dolisie currently reads AQI 12 (Good): Air quality is satisfactory for everyone.
AQI 12
Air quality right now
Good
- PM2.5, fine particles (µg/m³)
- 1.7
- tree cover
- 16.6%
- trees in this area
- 52.1K
- more trees needed
- 42.1K
Measured across a 2 km radius around Dolisie, Republic of the Congo (12.57 km²), from a satellite image of Sep 14, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Dolisie · AQI 12 (Good)
Dolisie's tree count comes to 52,150 trees across 12.57 km², 13 points below the 30% tree-cover level considered healthy for this area, so roughly 42,097 more trees would close the gap.
Air quality detail
Air quality in Dolisie today: AQI 12, Good
Main pollutant: PM2.5 · Observed Nov 9, 11:00 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
1.7
PM10
2.0
NO₂
0.4
O₃
62.0
SO₂
0.3
CO
144.0
- 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 Dolisie's daily AQI at 26 on average, from 17 on Nov 8 to an hourly peak of 58 on Nov 3.
Where Dolisie stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Dolisie: Critically low
16.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
52,150
Target trees
94,247
More trees needed
42,097
CO₂ if planted / yr
926.1 t
Deforestation · 2001–2025
How much forest has Dolisie lost?
Since 2001, the area within 10 km of Dolisie has lost about 2,910 hectares of forest (about 4,100 football pitches): 18% of the forest it had in 2000. Most of it was lost to shifting farming, so much of it can grow back. About 437 hectares (15%) 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
- 2,910 haabout 4,100 football pitches
- Share of its forest
- 18%of what there was in 2000
- Cleared for good
- 437 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 96 hectares a year in 2021–2025, down from 181 hectares a year in 2016–2020. The worst year was 2012, when about 304 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 | 4 ha | 20 ha | 24 ha |
| 2002 | 9 ha | 118 ha | 127 ha |
| 2003 | under 1 ha | 15 ha | 15 ha |
| 2004 | 46 ha | 100 ha | 146 ha |
| 2005 | 1 ha | 10 ha | 11 ha |
| 2006 | 22 ha | 34 ha | 56 ha |
| 2007 | 1 ha | 46 ha | 47 ha |
| 2008 | 3 ha | 17 ha | 19 ha |
| 2009 | 7 ha | 95 ha | 102 ha |
| 2010 | 49 ha | 112 ha | 161 ha |
| 2011 | 13 ha | 40 ha | 53 ha |
| 2012 | 115 ha | 189 ha | 304 ha |
| 2013 | 23 ha | 103 ha | 126 ha |
| 2014 | 31 ha | 174 ha | 204 ha |
| 2015 | 14 ha | 119 ha | 133 ha |
| 2016 | 10 ha | 153 ha | 163 ha |
| 2017 | 23 ha | 185 ha | 208 ha |
| 2018 | 14 ha | 194 ha | 208 ha |
| 2019 | 4 ha | 163 ha | 166 ha |
| 2020 | 19 ha | 140 ha | 159 ha |
| 2021 | 4 ha | 94 ha | 98 ha |
| 2022 | 3 ha | 61 ha | 64 ha |
| 2023 | 8 ha | 138 ha | 146 ha |
| 2024 | 8 ha | 104 ha | 112 ha |
| 2025 | 7 ha | 53 ha | 60 ha |
What is causing deforestation around Dolisie?
- Shifting farmingcan grow back85% · 2,470 ha
- Farms, pasture and plantationscleared for good7.6% · 220 ha
- Towns and roadscleared for good7.5% · 217 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
- 5,450 ha
- Forest in 2020
- 3,340 ha
- Overall change
- −2,110 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Dolisie shrank from about 5,450 hectares to 3,340 hectares, a net loss of about 2,110 hectares (−39%). New forest grew on about 103 hectares, but 2,210 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 Dolisie
Same 2 km radius, same index — so they compare directly.
- Cabinda160.4 km
Angola
- Tree cover
- 6%
- Air quality
- 60
- Boma188.7 km
Democratic Republic of the Congo
- Tree cover
- 17%
- Air quality
- 35
- Moanda195.0 km
Democratic Republic of the Congo
- Tree cover
- 4%
- Air quality
- 54
- Matadi202.6 km
Democratic Republic of the Congo
- Tree cover
- 4%
- Air quality
- 32
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Frequently asked
Questions about Dolisie
What is the air quality (AQI) in Dolisie right now?
The latest reading for Dolisie shows an AQI of 12 (Good), observed Nov 9, 11:00 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 Dolisie today?
At AQI 12 (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 Dolisie been like this week?
Over the last 7 days, the CAMS air-quality model put Dolisie's daily AQI at 26 on average, from 17 on Nov 8 to an hourly peak of 58 on Nov 3. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Dolisie lost since 2001?
Since 2001, the area within 10 km of Dolisie has lost about 2,910 hectares of forest (about 4,100 football pitches): 18% of the forest it had in 2000. Most of it was lost to shifting farming, so much of it can grow back. About 437 hectares (15%) was deforestation: forest cleared for good for farms, mines or towns. Forest loss is slowing down: about 96 hectares a year in 2021–2025, down from 181 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Dolisie shrank from about 5,450 hectares to 3,340 hectares, a net loss of about 2,110 hectares (−39%). New forest grew on about 103 hectares, but 2,210 hectares were lost.
What is the tree count in Dolisie?
Dolisie has an estimated 52,150 trees across the 12.57 km² measured — 16.6% tree cover, 13 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Dolisie need?
Dolisie needs roughly 42,097 more trees to close a 13-point shortfall against its 30% tree-cover target — about 926.1 t of extra CO₂ absorbed per year once grown.
How are Dolisie'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 Dolisie; the tree count is an estimate derived from that cover.
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