City report · Niger State, Nigeria
Suleja Air quality today
Air quality in Suleja currently reads AQI 99 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 99
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 42.1
- tree cover
- 18.2%
- trees in this area
- 57.2K
- more trees needed
- 37.1K
Measured across a 2 km radius around Madalla, Federal Capital Territory, Nigeria (12.57 km²), from a satellite image of Oct 28, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Suleja · AQI 99 (Moderate)
Suleja's tree count comes to 57,177 trees across 12.57 km², 12 points below the 30% tree-cover level considered healthy for this area, so roughly 37,071 more trees would close the gap.
Air quality detail
Air quality in Suleja today: AQI 99, Moderate
Main pollutant: PM2.5 · Observed Nov 11, 07:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
42.1
PM10
45.8
NO₂
19.6
O₃
35.0
SO₂
3.2
CO
549.0
- 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 Suleja's daily AQI at 126 on average, from 91 on Nov 11 to an hourly peak of 177 on Nov 10.
Where Suleja stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Suleja: Below target
18.2% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
57,177
Target trees
94,248
More trees needed
37,071
CO₂ if planted / yr
815.6 t
Deforestation · 2001–2025
How much forest has Suleja lost?
Since 2001, the area within 10 km of Suleja has lost about 88 hectares of forest (about 120 football pitches): 22% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations.
2017: satellite photo from February 2017 of a 5 × 5 km area about 7 km northwest of the city center.
- Forest lost since 2001
- 88 haabout 120 football pitches
- Share of its forest
- 22%of what there was in 2000
- Cleared for good
- 88 hadeforestation: turned into farms, mines or towns
The worst year was 2022, when about 27 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 | 6 ha | under 1 ha | 6 ha |
| 2002 | under 1 ha | under 1 ha | under 1 ha |
| 2003 | under 1 ha | under 1 ha | under 1 ha |
| 2004 | 3 ha | under 1 ha | 3 ha |
| 2005 | under 1 ha | under 1 ha | under 1 ha |
| 2006 | 2 ha | under 1 ha | 2 ha |
| 2007 | 1 ha | under 1 ha | 1 ha |
| 2008 | 6 ha | under 1 ha | 6 ha |
| 2009 | 2 ha | under 1 ha | 2 ha |
| 2010 | under 1 ha | under 1 ha | under 1 ha |
| 2011 | 11 ha | under 1 ha | 11 ha |
| 2012 | under 1 ha | under 1 ha | under 1 ha |
| 2013 | under 1 ha | under 1 ha | under 1 ha |
| 2014 | under 1 ha | under 1 ha | under 1 ha |
| 2015 | under 1 ha | under 1 ha | under 1 ha |
| 2016 | under 1 ha | under 1 ha | under 1 ha |
| 2017 | 3 ha | under 1 ha | 3 ha |
| 2018 | 2 ha | under 1 ha | 2 ha |
| 2019 | 6 ha | under 1 ha | 6 ha |
| 2020 | 7 ha | under 1 ha | 7 ha |
| 2021 | 1 ha | under 1 ha | 1 ha |
| 2022 | 27 ha | under 1 ha | 27 ha |
| 2023 | 6 ha | under 1 ha | 6 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 Suleja?
- Farms, pasture and plantationscleared for goodover 99% · 87 ha
Also: towns and roads, 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
- 8,690 ha
- Forest in 2020
- 6,960 ha
- Overall change
- −1,740 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Suleja shrank from about 8,690 hectares to 6,960 hectares, a net loss of about 1,740 hectares (−20%). New forest grew on about 135 hectares, but 1,870 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
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Frequently asked
Questions about Suleja
What is the air quality (AQI) in Suleja right now?
The latest reading for Suleja shows an AQI of 99 (Moderate), observed Nov 11, 07:00 local time via Open-Meteo / CAMS, US EPA index. The main pollutant is PM2.5. Unusually sensitive people should consider limiting long outdoor exertion.
Is it safe to exercise outside in Suleja today?
At AQI 99 (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 Suleja been like this week?
Over the last 7 days, the CAMS air-quality model put Suleja's daily AQI at 126 on average, from 91 on Nov 11 to an hourly peak of 177 on Nov 10. On 6 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Suleja lost since 2001?
Since 2001, the area within 10 km of Suleja has lost about 88 hectares of forest (about 120 football pitches): 22% of the forest it had in 2000. Most of it (over 99%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Comparing satellite maps from 2000 and 2020, the forest around Suleja shrank from about 8,690 hectares to 6,960 hectares, a net loss of about 1,740 hectares (−20%). New forest grew on about 135 hectares, but 1,870 hectares were lost.
What is the tree count in Suleja?
Suleja has an estimated 57,177 trees across the 12.57 km² measured — 18.2% tree cover, 12 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Suleja need?
Suleja needs roughly 37,071 more trees to close a 12-point shortfall against its 30% tree-cover target — about 815.6 t of extra CO₂ absorbed per year once grown.
How are Suleja'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 Madalla; the tree count is an estimate derived from that cover.
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