City report · Cross River State, Nigeria
Calabar Air quality today
Air quality in Calabar currently reads AQI 56 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
AQI 56
Air quality right now
Moderate
- PM2.5, fine particles (µg/m³)
- 10.6
- tree cover
- 8.1%
- trees in this area
- 22.4K
- more trees needed
- 60.5K
Measured across a 2 km radius around Bogoberi, Calabar 540281, Cross River, Nigeria (12.57 km²), from a satellite image of Dec 9, 2025. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Calabar · AQI 56 (Moderate)
Calabar's tree count comes to 22,393 trees across 11.06 km² of land, 22 points below the 30% tree-cover level considered healthy for this area, so roughly 60,545 more trees would close the gap.
Air quality detail
Air quality in Calabar today: AQI 56, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 16:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 165 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 3 station cities within 165 km, e.g. Okrika and Port Harcourt
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
10.6
PM10
5.7
NO₂
1.2
O₃
57.0
SO₂
0.3
CO
216.0
- 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 Calabar's daily AQI at 55 on average, from 46 on Nov 6 to an hourly peak of 87 on Nov 5.
Where Calabar stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Calabar: Critically low
8.1% tree cover against a 30% healthy-neighborhood target, across 11.06 km² of land.
Trees in this area
22,393
Target trees
82,938
More trees needed
60,545
CO₂ if planted / yr
1,332 t
Deforestation · 2001–2025
How much forest has Calabar lost?
Since 2001, the area within 10 km of Calabar has lost about 303 hectares of forest (about 420 football pitches): 2.4% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for towns and roads.
2017: satellite photo from January 2017 of a 5 × 5 km area about 4 km northwest of the city center.
- Forest lost since 2001
- 303 haabout 420 football pitches
- Share of its forest
- 2.4%of what there was in 2000
- Cleared for good
- 244 hadeforestation: turned into farms, mines or towns
The worst year was 2017, when about 46 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 | under 1 ha | under 1 ha | under 1 ha |
| 2002 | 6 ha | under 1 ha | 6 ha |
| 2003 | under 1 ha | under 1 ha | 1 ha |
| 2004 | under 1 ha | under 1 ha | under 1 ha |
| 2005 | 10 ha | under 1 ha | 11 ha |
| 2006 | 7 ha | 2 ha | 9 ha |
| 2007 | 2 ha | under 1 ha | 2 ha |
| 2008 | 16 ha | 2 ha | 18 ha |
| 2009 | 15 ha | 6 ha | 21 ha |
| 2010 | 14 ha | 3 ha | 17 ha |
| 2011 | 10 ha | 1 ha | 11 ha |
| 2012 | 7 ha | 6 ha | 12 ha |
| 2013 | 9 ha | 2 ha | 12 ha |
| 2014 | 33 ha | 2 ha | 35 ha |
| 2015 | 5 ha | 5 ha | 11 ha |
| 2016 | 5 ha | under 1 ha | 5 ha |
| 2017 | 28 ha | 19 ha | 46 ha |
| 2018 | 6 ha | 4 ha | 10 ha |
| 2019 | 5 ha | under 1 ha | 6 ha |
| 2020 | 8 ha | under 1 ha | 8 ha |
| 2021 | 7 ha | 3 ha | 10 ha |
| 2022 | 21 ha | under 1 ha | 22 ha |
| 2023 | 8 ha | under 1 ha | 8 ha |
| 2024 | 6 ha | 2 ha | 7 ha |
| 2025 | 16 ha | under 1 ha | 16 ha |
What is causing deforestation around Calabar?
- Towns and roadscleared for good49% · 150 ha
- Farms, pasture and plantationscleared for good31% · 93 ha
- Storms, floods and other natural causescan grow back12% · 36 ha
Also: logging, mining and energy, 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
- 14,100 ha
- Forest in 2020
- 13,300 ha
- Overall change
- −794 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Calabar shrank from about 14,100 hectares to 13,300 hectares, a net loss of about 794 hectares (−5.6%). New forest grew on about 106 hectares, but 900 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 Calabar
What is the air quality (AQI) in Calabar right now?
The latest reading for Calabar shows an AQI of 56 (Moderate), observed Nov 10, 16:00 local time via Open-Meteo / CAMS, corrected with 3 ground-station cities within 165 km, 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 Calabar today?
At AQI 56 (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 Calabar been like this week?
Over the last 7 days, the CAMS air-quality model put Calabar's daily AQI at 55 on average, from 46 on Nov 6 to an hourly peak of 87 on Nov 5. No day averaged above 100, the level where the air turns unhealthy for sensitive groups.
How much forest has the area around Calabar lost since 2001?
Since 2001, the area within 10 km of Calabar has lost about 303 hectares of forest (about 420 football pitches): 2.4% of the forest it had in 2000. Most of it (80%) was deforestation, forest cleared for good, mainly for towns and roads. Comparing satellite maps from 2000 and 2020, the forest around Calabar shrank from about 14,100 hectares to 13,300 hectares, a net loss of about 794 hectares (−5.6%). New forest grew on about 106 hectares, but 900 hectares were lost.
What is the tree count in Calabar?
Calabar has an estimated 22,393 trees across the 11.06 km² of land measured — 8.1% tree cover, 22 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Calabar need?
Calabar needs roughly 60,545 more trees to close a 22-point shortfall against its 30% tree-cover target — about 1,332 t of extra CO₂ absorbed per year once grown.
How are Calabar'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 Bogoberi; the tree count is an estimate derived from that cover.
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