City report · Niger State, Nigeria
Bida Air quality today
Air quality in Bida currently reads AQI 81 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Air quality right now
AQI 81
Moderate
- PM2.5, fine particles (µg/m³)
- 25.3
- tree cover
- 10.6%
- trees in this area
- 33.3K
- more trees needed
- 60.9K
Measured across a 2 km radius around Bida, Niger, Nigeria (12.57 km²), from a satellite image of Oct 30, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Bida · AQI 81 (Moderate)
Bida's tree count comes to 33,301 trees across 12.57 km², 19 points below the 30% tree-cover level considered healthy for this area, so roughly 60,947 more trees would close the gap.
Air quality detail
Air quality in Bida today: AQI 81, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 16:00 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
25.3
PM10
44.1
NO₂
1.2
O₃
116.0
SO₂
1.2
CO
300.0
- 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 Bida's daily AQI at 141 on average, from 129 on Nov 6 to an hourly peak of 192 on Nov 7.
Where Bida stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Bida: Critically low
10.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
33,301
Target trees
94,248
More trees needed
60,947
CO₂ if planted / yr
1,341 t
Deforestation · 2001–2025
How much forest has Bida lost?
There was almost no forest around Bida in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here.
2017: satellite photo from February 2017 of a 5 × 5 km area in the city center.
Forest gained and lost, 2000–2020
- Forest in 2000
- 1,480 ha
- Forest in 2020
- 1,510 ha
- Overall change
- +31 hamore forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Bida grew from about 1,480 hectares to 1,510 hectares, a net gain of about 31 hectares (+2.1%). New forest grew on about 58 hectares, while 26 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 Bida
What is the air quality (AQI) in Bida right now?
The latest reading for Bida shows an AQI of 81 (Moderate), observed Nov 10, 16:00 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 Bida today?
At AQI 81 (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 Bida been like this week?
Over the last 7 days, the CAMS air-quality model put Bida's daily AQI at 141 on average, from 129 on Nov 6 to an hourly peak of 192 on Nov 7. On 7 of those days the average was above 100, unhealthy for sensitive groups.
How much forest has the area around Bida lost since 2001?
There was almost no forest around Bida in 2000, so there has been almost nothing to lose since. Only fairly dense woodland counts as forest in these maps, so scattered street and garden trees don't show up here. Comparing satellite maps from 2000 and 2020, the forest around Bida grew from about 1,480 hectares to 1,510 hectares, a net gain of about 31 hectares (+2.1%). New forest grew on about 58 hectares, while 26 hectares were lost.
What is the tree count in Bida?
Bida has an estimated 33,301 trees across the 12.57 km² measured — 10.6% tree cover, 19 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Bida need?
Bida needs roughly 60,947 more trees to close a 19-point shortfall against its 30% tree-cover target — about 1,341 t of extra CO₂ absorbed per year once grown.
How are Bida'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 Bida; the tree count is an estimate derived from that cover.
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