City report · Republic of the Congo
Brazzaville Air quality today
Air quality in Brazzaville currently reads AQI 120 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 120
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 43.3
- tree cover
- 1.4%
- trees in this area
- 3.8K
- more trees needed
- 91.1K
Measured across a 2 km radius around Brazzaville, Republic of the Congo (12.57 km²), from a satellite image of Sep 15, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Brazzaville · AQI 120 (Unhealthy for sensitive groups)
Brazzaville's tree count comes to 3,796 trees across 10.85 km² of land, 34 points below the 35% tree-cover level considered healthy for this area, so roughly 91,096 more trees would close the gap.
Air quality detail
Air quality in Brazzaville today: AQI 120, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 19:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · WASARU / KINAQ Huilleries, 5.5 km away · median of 2 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
43.3
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, KINAQ Huilleries
- Outdoor exercise
- Children, older adults and people with asthma or heart disease should cut down long or hard exercise
- Windows
- Close them to keep the outside air out
- Mask
- Sensitive groups: an N95 outdoors
- Air purifier
- Run one, especially in bedrooms
Over the last 7 days, the CAMS air-quality model put Brazzaville's daily AQI at 58 on average, from 47 on Nov 7 to an hourly peak of 78 on Nov 9.
Where Brazzaville stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Brazzaville: Critically low
1.4% tree cover against a 35% healthy-neighborhood target, across 10.85 km² of land.
Trees in this area
3,796
Target trees
94,892
More trees needed
91,096
CO₂ if planted / yr
2,004 t
Deforestation · 2001–2025
How much forest has Brazzaville lost?
Since 2001, the area within 10 km of Brazzaville has lost about 323 hectares of forest (about 450 football pitches): 17% of the forest it had in 2000. Most of it (67%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from July 2017 of a 5 × 5 km area about 7 km northwest of the city center.
- Forest lost since 2001
- 323 haabout 450 football pitches
- Share of its forest
- 17%of what there was in 2000
- Cleared for good
- 218 hadeforestation: turned into farms, mines or towns
The worst year was 2017, when about 49 hectares of forest were lost.
Brazzaville's full deforestation reportHectares 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 | under 1 ha |
| 2002 | 2 ha | 2 ha | 3 ha |
| 2003 | 8 ha | 5 ha | 13 ha |
| 2004 | 5 ha | under 1 ha | 5 ha |
| 2005 | 1 ha | 2 ha | 3 ha |
| 2006 | under 1 ha | 2 ha | 2 ha |
| 2007 | 7 ha | under 1 ha | 8 ha |
| 2008 | 12 ha | 5 ha | 17 ha |
| 2009 | 31 ha | 5 ha | 36 ha |
| 2010 | 9 ha | 4 ha | 13 ha |
| 2011 | 2 ha | 15 ha | 16 ha |
| 2012 | 4 ha | 2 ha | 6 ha |
| 2013 | 30 ha | 3 ha | 33 ha |
| 2014 | 9 ha | 5 ha | 14 ha |
| 2015 | 3 ha | 4 ha | 6 ha |
| 2016 | 2 ha | 9 ha | 11 ha |
| 2017 | 29 ha | 20 ha | 49 ha |
| 2018 | 9 ha | 11 ha | 20 ha |
| 2019 | 5 ha | 3 ha | 8 ha |
| 2020 | 1 ha | 3 ha | 4 ha |
| 2021 | 3 ha | under 1 ha | 3 ha |
| 2022 | 1 ha | under 1 ha | 2 ha |
| 2023 | 41 ha | 4 ha | 45 ha |
| 2024 | 2 ha | 1 ha | 3 ha |
| 2025 | 3 ha | 2 ha | 4 ha |
What is causing deforestation around Brazzaville?
- Towns and roadscleared for good63% · 203 ha
- Shifting farmingcan grow back20% · 64 ha
- Storms, floods and other natural causescan grow back11% · 37 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
- 983 ha
- Forest in 2020
- 335 ha
- Overall change
- −648 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Brazzaville shrank from about 983 hectares to 335 hectares, a net loss of about 648 hectares (−66%). New forest grew on about 41 hectares, but 689 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 Brazzaville
Same 2 km radius, same index — so they compare directly.
- Masina17.7 km
Democratic Republic of the Congo
- Tree cover
- 21%
- Air quality
- 120
- Inkisi99.5 km
Democratic Republic of the Congo
- Tree cover
- 16%
- Air quality
- 56
- Mbanza-Ngungu120.0 km
Democratic Republic of the Congo
- Tree cover
- 15%
- Air quality
- 103
- Mbanza Kongo250.7 km
Angola
- Tree cover
- 19%
- Air quality
- 106
- Bandundu Province255.5 km
Democratic Republic of the Congo
- Tree cover
- 28%
- Air quality
- 46
Also compared:Brazzaville vs Pointe-NoireBrazzaville vs DolisieBrazzaville vs Impfondo
Build your own
Compare Brazzaville with anywhere
This place
Brazzaville
Use this data
Put Brazzaville's numbers on your site
Free to embed. Updates itself as the measurement refreshes.
Frequently asked
Questions about Brazzaville
What is the air quality (AQI) in Brazzaville right now?
The latest reading for Brazzaville shows an AQI of 120 (Unhealthy for sensitive groups), measured Nov 11, 19:00 local time by 2 ground monitoring stations via OpenAQ (the median of their readings; the nearest is WASARU / KINAQ Huilleries, 5.5 km away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Brazzaville today?
At AQI 120 (Unhealthy for sensitive groups): children, older adults and people with asthma or heart disease should cut down long or hard exercise. Windows: close them to keep the outside air out. Masks: sensitive groups: an N95 outdoors. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Brazzaville been like this week?
Over the last 7 days, the CAMS air-quality model put Brazzaville's daily AQI at 58 on average, from 47 on Nov 7 to an hourly peak of 78 on Nov 9. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Brazzaville lost since 2001?
Since 2001, the area within 10 km of Brazzaville has lost about 323 hectares of forest (about 450 football pitches): 17% of the forest it had in 2000. Most of it (67%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Brazzaville shrank from about 983 hectares to 335 hectares, a net loss of about 648 hectares (−66%). New forest grew on about 41 hectares, but 689 hectares were lost.
What is the tree count in Brazzaville?
Brazzaville has an estimated 3,796 trees across the 10.85 km² of land measured — 1.4% tree cover, 34 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Brazzaville need?
Brazzaville needs roughly 91,096 more trees to close a 34-point shortfall against its 35% tree-cover target — about 2,004 t of extra CO₂ absorbed per year once grown.
How are Brazzaville's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Brazzaville, 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 Brazzaville; the tree count is an estimate derived from that cover.
See your own area
What does your neighborhood look like?
Pick any point and radius to get the same air-quality and tree-cover breakdown.
Check my address