City report · Ghana
Kumasi Air quality today
Air quality in Kumasi currently reads AQI 74 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 74
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 21.5
- tree cover
- 19.5%
- trees in this area
- 61.3K
- more trees needed
- 33.0K
Measured across a 2 km radius around Adum, Kumasi, Ghana (12.57 km²), from a satellite image of Oct 22, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Kumasi · AQI 74 (Moderate)
Kumasi's tree count comes to 61,261 trees across 12.57 km², 10 points below the 30% tree-cover level considered healthy for this area, so roughly 32,987 more trees would close the gap.
Air quality detail
Air quality in Kumasi today: AQI 74, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 15:52 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Kumasi Adum, 800 m away
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
21.5
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · Clarity, Ghana AQ
- Outdoor exercise
- Fine for most people; unusually sensitive people should take long or hard exercise easier
- Windows
- Fine to open; close them if you are sensitive to pollution
- Mask
- Not needed for most people
- Air purifier
- Worth running if you are sensitive
Over the last 7 days, the CAMS air-quality model put Kumasi's daily AQI at 52 on average, from 47 on Nov 6 to an hourly peak of 81 on Nov 7.
Where Kumasi stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Kumasi: Below target
19.5% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
61,261
Target trees
94,248
More trees needed
32,987
CO₂ if planted / yr
725.7 t
Deforestation · 2001–2025
How much forest has Kumasi lost?
Since 2001, the area within 10 km of Kumasi has lost about 1,170 hectares of forest (about 1,600 football pitches): 49% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from January 2017 of a 5 × 5 km area about 7 km southwest of the city center.
- Forest lost since 2001
- 1,170 haabout 1,600 football pitches
- Share of its forest
- 49%of what there was in 2000
- Cleared for good
- 1,170 hadeforestation: turned into farms, mines or towns
The worst year was 2016, when about 104 hectares of forest were lost.
Kumasi's full deforestation reportHectares of forest lost each year
Show the figures as a table
| Year | Cleared for good | Can grow back | Total |
|---|---|---|---|
| 2001 | 24 ha | under 1 ha | 24 ha |
| 2002 | 102 ha | under 1 ha | 102 ha |
| 2003 | 93 ha | under 1 ha | 93 ha |
| 2004 | 22 ha | under 1 ha | 22 ha |
| 2005 | 47 ha | under 1 ha | 47 ha |
| 2006 | 73 ha | under 1 ha | 73 ha |
| 2007 | 83 ha | under 1 ha | 83 ha |
| 2008 | 24 ha | under 1 ha | 24 ha |
| 2009 | 102 ha | under 1 ha | 102 ha |
| 2010 | 56 ha | under 1 ha | 56 ha |
| 2011 | 44 ha | under 1 ha | 44 ha |
| 2012 | 9 ha | under 1 ha | 9 ha |
| 2013 | 79 ha | under 1 ha | 79 ha |
| 2014 | 73 ha | under 1 ha | 73 ha |
| 2015 | 29 ha | under 1 ha | 29 ha |
| 2016 | 104 ha | under 1 ha | 104 ha |
| 2017 | 75 ha | under 1 ha | 75 ha |
| 2018 | 20 ha | under 1 ha | 20 ha |
| 2019 | 8 ha | under 1 ha | 8 ha |
| 2020 | 21 ha | under 1 ha | 21 ha |
| 2021 | 55 ha | under 1 ha | 55 ha |
| 2022 | 11 ha | under 1 ha | 11 ha |
| 2023 | 5 ha | under 1 ha | 5 ha |
| 2024 | 6 ha | under 1 ha | 6 ha |
| 2025 | 3 ha | under 1 ha | 3 ha |
What is causing deforestation around Kumasi?
- Towns and roadscleared for goodover 99% · 1,160 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
- 6,400 ha
- Forest in 2020
- 4,480 ha
- Overall change
- −1,920 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Kumasi shrank from about 6,400 hectares to 4,480 hectares, a net loss of about 1,920 hectares (−30%). New forest grew on about 186 hectares, but 2,100 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 Kumasi
Same 2 km radius, same index — so they compare directly.
- Twifu Praso119.7 km
Ghana
- Tree cover
- 60%
- Air quality
- 39
- Koforidua164.7 km
Ghana
- Tree cover
- 35%
- Air quality
- 56
- Atsiaman180.7 km
Ghana
- Tree cover
- 13%
- Air quality
- 29
- Cape Coast180.9 km
Ghana
- Tree cover
- 26%
- Air quality
- 53
- Amanfrom186.6 km
Ghana
- Tree cover
- 3%
- Air quality
- 40
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Frequently asked
Questions about Kumasi
What is the air quality (AQI) in Kumasi right now?
The latest reading for Kumasi shows an AQI of 74 (Moderate), measured Nov 11, 15:52 local time by the Kumasi Adum ground monitoring station, 800 m away, via OpenAQ. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Kumasi today?
At AQI 74 (Moderate): fine for most people; unusually sensitive people should take long or hard exercise easier. Windows: fine to open; close them if you are sensitive to pollution. Masks: not needed for most people. The reading changes through the day, so check again before a long run or ride.
What has the air quality in Kumasi been like this week?
Over the last 7 days, the CAMS air-quality model put Kumasi's daily AQI at 52 on average, from 47 on Nov 6 to an hourly peak of 81 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 Kumasi lost since 2001?
Since 2001, the area within 10 km of Kumasi has lost about 1,170 hectares of forest (about 1,600 football pitches): 49% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Kumasi shrank from about 6,400 hectares to 4,480 hectares, a net loss of about 1,920 hectares (−30%). New forest grew on about 186 hectares, but 2,100 hectares were lost.
What is the tree count in Kumasi?
Kumasi has an estimated 61,261 trees across the 12.57 km² measured — 19.5% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Kumasi need?
Kumasi needs roughly 32,987 more trees to close a 10-point shortfall against its 30% tree-cover target — about 725.7 t of extra CO₂ absorbed per year once grown.
How are Kumasi's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Adum, 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 Adum; the tree count is an estimate derived from that cover.
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