City report · Goh-Djiboua, Ivory Coast
Gagnoa Air quality today
Air quality in Gagnoa 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)
- 11.9
- tree cover
- 15.4%
- trees in this area
- 48.4K
- more trees needed
- 45.9K
Measured across a 2 km radius around Gagnoa, Côte d'Ivoire (12.57 km²), from a satellite image of Aug 4, 2026. Lower AQI is better: 0–50 is Good, above 300 is Hazardous.
Gagnoa · AQI 56 (Moderate)
Gagnoa's tree count comes to 48,381 trees across 12.57 km², 15 points below the 30% tree-cover level considered healthy for this area, so roughly 45,867 more trees would close the gap.
Air quality detail
Air quality in Gagnoa today: AQI 56, Moderate
Main pollutant: PM2.5 · Observed Nov 10, 15:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 245 km, US EPA index. Values in µg/m³.
Estimate · model corrected with 2 station cities within 245 km, e.g. Anyama and Abidjan
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
11.9
PM10
8.7
NO₂
0.5
O₃
62.0
SO₂
0.3
CO
155.0
- 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 Gagnoa's daily AQI at 35 on average, from 23 on Nov 5 to an hourly peak of 61 on Nov 6.
Where Gagnoa stands: the most polluted cities in the world right now · the cleanest
Tree cover detail
Tree cover in Gagnoa: Critically low
15.4% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
48,381
Target trees
94,248
More trees needed
45,867
CO₂ if planted / yr
1,009 t
Deforestation · 2001–2025
How much forest has Gagnoa lost?
Since 2001, the area within 10 km of Gagnoa has lost about 8,030 hectares of forest (about 11,000 football pitches): 34% of the forest it had in 2000. Most of it (100%) 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 6 km north of the city center.
- Forest lost since 2001
- 8,030 haabout 11,000 football pitches
- Share of its forest
- 34%of what there was in 2000
- Cleared for good
- 8,030 hadeforestation: turned into farms, mines or towns
Forest loss is slowing down: about 253 hectares a year in 2021–2025, down from 720 hectares a year in 2016–2020. The worst year was 2017, when about 1,570 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 | 204 ha | under 1 ha | 204 ha |
| 2002 | 105 ha | under 1 ha | 105 ha |
| 2003 | 170 ha | under 1 ha | 170 ha |
| 2004 | 20 ha | under 1 ha | 20 ha |
| 2005 | 36 ha | under 1 ha | 36 ha |
| 2006 | 130 ha | under 1 ha | 130 ha |
| 2007 | 152 ha | under 1 ha | 152 ha |
| 2008 | 92 ha | under 1 ha | 92 ha |
| 2009 | 21 ha | under 1 ha | 21 ha |
| 2010 | 87 ha | under 1 ha | 87 ha |
| 2011 | 149 ha | under 1 ha | 149 ha |
| 2012 | 32 ha | under 1 ha | 32 ha |
| 2013 | 723 ha | under 1 ha | 723 ha |
| 2014 | 889 ha | under 1 ha | 889 ha |
| 2015 | 357 ha | under 1 ha | 357 ha |
| 2016 | 762 ha | under 1 ha | 762 ha |
| 2017 | 1,570 ha | under 1 ha | 1,570 ha |
| 2018 | 320 ha | under 1 ha | 320 ha |
| 2019 | 474 ha | under 1 ha | 474 ha |
| 2020 | 479 ha | under 1 ha | 479 ha |
| 2021 | 336 ha | under 1 ha | 336 ha |
| 2022 | 229 ha | under 1 ha | 229 ha |
| 2023 | 228 ha | under 1 ha | 228 ha |
| 2024 | 339 ha | under 1 ha | 339 ha |
| 2025 | 133 ha | under 1 ha | 133 ha |
What is causing deforestation around Gagnoa?
- Farms, pasture and plantationscleared for good94% · 7,530 ha
- Towns and roadscleared for good6.2% · 499 ha
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
- 18,200 ha
- Forest in 2020
- 14,300 ha
- Overall change
- −3,870 haless forest than in 2000
Comparing satellite maps from 2000 and 2020, the forest around Gagnoa shrank from about 18,200 hectares to 14,300 hectares, a net loss of about 3,870 hectares (−21%). New forest grew on about 1,470 hectares, but 5,340 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 Gagnoa
What is the air quality (AQI) in Gagnoa right now?
The latest reading for Gagnoa shows an AQI of 56 (Moderate), observed Nov 10, 15:00 local time via Open-Meteo / CAMS, corrected with 2 ground-station cities within 245 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 Gagnoa 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 Gagnoa been like this week?
Over the last 7 days, the CAMS air-quality model put Gagnoa's daily AQI at 35 on average, from 23 on Nov 5 to an hourly peak of 61 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 Gagnoa lost since 2001?
Since 2001, the area within 10 km of Gagnoa has lost about 8,030 hectares of forest (about 11,000 football pitches): 34% of the forest it had in 2000. Most of it (100%) was deforestation, forest cleared for good, mainly for farms, pasture and plantations. Forest loss is slowing down: about 253 hectares a year in 2021–2025, down from 720 hectares a year in 2016–2020. Comparing satellite maps from 2000 and 2020, the forest around Gagnoa shrank from about 18,200 hectares to 14,300 hectares, a net loss of about 3,870 hectares (−21%). New forest grew on about 1,470 hectares, but 5,340 hectares were lost.
What is the tree count in Gagnoa?
Gagnoa has an estimated 48,381 trees across the 12.57 km² measured — 15.4% tree cover, 15 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Gagnoa need?
Gagnoa needs roughly 45,867 more trees to close a 15-point shortfall against its 30% tree-cover target — about 1,009 t of extra CO₂ absorbed per year once grown.
How are Gagnoa'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 Gagnoa; the tree count is an estimate derived from that cover.
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