City report · Abia State, Nigeria
Aba Air quality today
Air quality in Aba currently reads AQI 112 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
AQI 112
Air quality right now
Unhealthy for sensitive groups
- PM2.5, fine particles (µg/m³)
- 40.3
- tree cover
- 3.4%
- trees in this area
- 10.7K
- more trees needed
- 99.3K
Measured across a 2 km radius around Aba, Abia, Nigeria (12.57 km²), from a satellite image of Jan 8, 2025. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Aba · AQI 112 (Unhealthy for sensitive groups)
Aba's tree count comes to 10,681 trees across 12.57 km², 32 points below the 35% tree-cover level considered healthy for this area, so roughly 99,274 more trees would close the gap.
Air quality detail
Air quality in Aba today: AQI 112, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 10, 16:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 85 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 85 km, e.g. Okrika and Port Harcourt
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
40.3
PM10
20.6
NO₂
3.5
O₃
77.0
SO₂
2.2
CO
336.0
- 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 Aba's daily AQI at 90 on average, from 83 on Nov 8 to an hourly peak of 160 on Nov 4.
Where Aba stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Aba: Critically low
3.4% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
10,681
Target trees
109,955
More trees needed
99,274
CO₂ if planted / yr
2,184 t
Deforestation · 2001–2025
How much forest has Aba lost?
Since 2001, the area within 10 km of Aba has lost about 173 hectares of forest (about 240 football pitches): 38% 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 in the city center.
- Forest lost since 2001
- 173 haabout 240 football pitches
- Share of its forest
- 38%of what there was in 2000
- Cleared for good
- 173 hadeforestation: turned into farms, mines or towns
The worst year was 2010, when about 37 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 | 23 ha | under 1 ha | 23 ha |
| 2002 | 17 ha | under 1 ha | 17 ha |
| 2003 | 7 ha | under 1 ha | 7 ha |
| 2004 | 4 ha | under 1 ha | 4 ha |
| 2005 | 12 ha | under 1 ha | 12 ha |
| 2006 | 7 ha | under 1 ha | 7 ha |
| 2007 | 15 ha | under 1 ha | 15 ha |
| 2008 | 10 ha | under 1 ha | 11 ha |
| 2009 | 13 ha | under 1 ha | 13 ha |
| 2010 | 37 ha | under 1 ha | 37 ha |
| 2011 | 9 ha | under 1 ha | 9 ha |
| 2012 | 8 ha | under 1 ha | 8 ha |
| 2013 | 1 ha | under 1 ha | 1 ha |
| 2014 | under 1 ha | under 1 ha | 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | 2 ha | under 1 ha | 2 ha |
| 2018 | under 1 ha | under 1 ha | under 1 ha |
| 2019 | under 1 ha | under 1 ha | under 1 ha |
| 2020 | 1 ha | under 1 ha | 1 ha |
| 2021 | under 1 ha | under 1 ha | under 1 ha |
| 2022 | 4 ha | under 1 ha | 4 ha |
| 2023 | under 1 ha | under 1 ha | under 1 ha |
| 2024 | under 1 ha | under 1 ha | under 1 ha |
| 2025 | under 1 ha | under 1 ha | under 1 ha |
What is causing deforestation around Aba?
- Towns and roadscleared for good66% · 115 ha
- Farms, pasture and plantationscleared for good33% · 57 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
- 17,100 ha
- Forest in 2020
- 16,900 ha
- Overall change
- −246 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Aba stayed about the same size, at about 16,900 hectares: new forest grew on about 940 hectares, and about 1,190 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 Aba
Same 2 km radius, same index — so they compare directly.
- Ikot Ekpene39.4 km
Nigeria
- Tree cover
- 20%
- Air quality
- 117
- Umuahia48.6 km
Nigeria
- Tree cover
- 21%
- Air quality
- 89
- Okrika51.2 km
Nigeria
- Tree cover
- 31%
- Air quality
- 107
- Port Harcourt53.6 km
Nigeria
- Tree cover
- 13%
- Air quality
- 93
- Owerri55.9 km
Nigeria
- Tree cover
- 7%
- Air quality
- 385
- Uyo63.1 km
Nigeria
- Tree cover
- 35%
- Air quality
- 85
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Frequently asked
Questions about Aba
What is the air quality (AQI) in Aba right now?
The latest reading for Aba shows an AQI of 112 (Unhealthy for sensitive groups), observed Nov 10, 16:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 85 km, US EPA index. The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Aba today?
At AQI 112 (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 Aba been like this week?
Over the last 7 days, the CAMS air-quality model put Aba's daily AQI at 90 on average, from 83 on Nov 8 to an hourly peak of 160 on Nov 4. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Aba lost since 2001?
Since 2001, the area within 10 km of Aba has lost about 173 hectares of forest (about 240 football pitches): 38% 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 Aba stayed about the same size, at about 16,900 hectares: new forest grew on about 940 hectares, and about 1,190 hectares were lost.
What is the tree count in Aba?
Aba has an estimated 10,681 trees across the 12.57 km² measured — 3.4% tree cover, 32 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Aba need?
Aba needs roughly 99,274 more trees to close a 32-point shortfall against its 35% tree-cover target — about 2,184 t of extra CO₂ absorbed per year once grown.
How are Aba'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 Aba; the tree count is an estimate derived from that cover.
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