City report · Ogun State, Nigeria
Ota Air quality today
Air quality in Ota 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)
- 40.0
- tree cover
- 3.2%
- trees in this area
- 10.1K
- more trees needed
- 99.9K
Measured across a 2 km radius around Ota, Ogun State, Nigeria (12.57 km²), from a satellite image of Jan 24, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Ota · AQI 112 (Unhealthy for sensitive groups)
Ota's tree count comes to 10,053 trees across 12.57 km², 32 points below the 35% tree-cover level considered healthy for this area, so roughly 99,903 more trees would close the gap.
Air quality detail
Air quality in Ota today: AQI 112, Unhealthy for sensitive groups
Main pollutant: PM2.5 · Observed Nov 11, 18:14 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.
Ground station · Ifako-Ijaiye Bus Terminal, 12.1 km away · median of 12 stations
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
40.0
PM10
—
NO₂
—
O₃
—
SO₂
—
CO
—
Data: OpenAQ · AirGradient, HabitatMap, LAMATA, Uniport-UCAM Urban AQ, HabitatMap · AirCasting, Air Quality for Collective Public Health Action Project
- 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 Ota's daily AQI at 73 on average, from 65 on Nov 10 to an hourly peak of 112 on Nov 6.
Where Ota stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Ota: Critically low
3.2% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
10,053
Target trees
109,956
More trees needed
99,903
CO₂ if planted / yr
2,198 t
Deforestation · 2001–2025
How much forest has Ota lost?
Since 2001, the area within 10 km of Ota has lost about 1,700 hectares of forest (about 2,400 football pitches): 66% of the forest it had in 2000. Most of it (100%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from February 2017 of a 5 × 5 km area about 7 km west of the city center.
- Forest lost since 2001
- 1,700 haabout 2,400 football pitches
- Share of its forest
- 66%of what there was in 2000
- Cleared for good
- 1,700 hadeforestation: turned into farms, mines or towns
The worst year was 2007, when about 432 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 | 130 ha | under 1 ha | 130 ha |
| 2002 | 73 ha | under 1 ha | 73 ha |
| 2003 | 2 ha | under 1 ha | 2 ha |
| 2004 | 18 ha | under 1 ha | 18 ha |
| 2005 | 39 ha | under 1 ha | 39 ha |
| 2006 | 110 ha | under 1 ha | 110 ha |
| 2007 | 432 ha | under 1 ha | 432 ha |
| 2008 | 208 ha | under 1 ha | 208 ha |
| 2009 | 45 ha | under 1 ha | 45 ha |
| 2010 | 17 ha | under 1 ha | 17 ha |
| 2011 | 260 ha | under 1 ha | 260 ha |
| 2012 | 278 ha | under 1 ha | 278 ha |
| 2013 | 8 ha | under 1 ha | 8 ha |
| 2014 | 3 ha | under 1 ha | 3 ha |
| 2015 | 2 ha | under 1 ha | 2 ha |
| 2016 | 6 ha | under 1 ha | 6 ha |
| 2017 | 31 ha | under 1 ha | 31 ha |
| 2018 | 12 ha | under 1 ha | 12 ha |
| 2019 | 2 ha | under 1 ha | 2 ha |
| 2020 | 1 ha | under 1 ha | 1 ha |
| 2021 | 4 ha | under 1 ha | 4 ha |
| 2022 | 7 ha | under 1 ha | 7 ha |
| 2023 | 4 ha | under 1 ha | 4 ha |
| 2024 | 1 ha | under 1 ha | 1 ha |
| 2025 | 4 ha | under 1 ha | 4 ha |
What is causing deforestation around Ota?
- Towns and roadscleared for good99% · 1,670 ha
- Farms, pasture and plantationscleared for good1.3% · 23 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
- 3,380 ha
- Forest in 2020
- 1,130 ha
- Overall change
- −2,250 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Ota shrank from about 3,380 hectares to 1,130 hectares, a net loss of about 2,250 hectares (−66%). New forest grew on about 74 hectares, but 2,320 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 Ota
What is the air quality (AQI) in Ota right now?
The latest reading for Ota shows an AQI of 112 (Unhealthy for sensitive groups), measured Nov 11, 18:14 local time by 12 ground monitoring stations via OpenAQ (the median of their readings; the nearest is Ifako-Ijaiye Bus Terminal, 12.1 km away). The main pollutant is PM2.5. Sensitive groups should limit long or intense outdoor activity.
Is it safe to exercise outside in Ota 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 Ota been like this week?
Over the last 7 days, the CAMS air-quality model put Ota's daily AQI at 73 on average, from 65 on Nov 10 to an hourly peak of 112 on Nov 6. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Ota lost since 2001?
Since 2001, the area within 10 km of Ota has lost about 1,700 hectares of forest (about 2,400 football pitches): 66% of the forest it had in 2000. Most of it (100%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Ota shrank from about 3,380 hectares to 1,130 hectares, a net loss of about 2,250 hectares (−66%). New forest grew on about 74 hectares, but 2,320 hectares were lost.
What is the tree count in Ota?
Ota has an estimated 10,053 trees across the 12.57 km² measured — 3.2% tree cover, 32 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Ota need?
Ota needs roughly 99,903 more trees to close a 32-point shortfall against its 35% tree-cover target — about 2,198 t of extra CO₂ absorbed per year once grown.
How are Ota's air quality and tree cover measured?
Air quality is measured by ground monitoring stations near Ota, 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 Ota; the tree count is an estimate derived from that cover.
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