Air quality comparison · Ivory Coast, 490 km apart
Abidjan vs Korhogo Air quality index (AQI) today
Abidjan has cleaner air than Korhogo right now: AQI 50 (Good) against 62 (Moderate).
That puts them in different EPA bands, so the health advice differs today. Over the past 6 days, on modeled daily averages, Abidjan averaged AQI 39 against 60, and it was the cleaner of the two on 6 of those days. Abidjan has lost more forest since 2001. Abidjan has more tree cover.
Updated . Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf.
Abidjan50Korhogo62
Head to head
Abidjan vs Korhogo at a glance
Abidjan is ahead on 5 of 6 measures, and Korhogo on 1. The better figure in each row is marked.
| Abidjan | Korhogo | |
|---|---|---|
| Air quality nowUS AQI. Lower is better. | 50 (better) | 62 |
| PM2.5Fine particles, µg/m³. | 9 (better) | 15 |
| Past week's averageUS AQI, 6 days. | 39 (better) | 60 |
| Forest lost since 2001Within 10 km of the center. | 891 ha | under 1 ha (better) |
| Tree coverWithin 2 km of the center. | 18.0% (better) | 11.5% |
| Trees still neededTo reach a healthy canopy. | 37.7K (better) | 57.7K |
Air quality today
What is the air like in Abidjan and Korhogo right now?
Abidjan has cleaner air than Korhogo right now: AQI 50 (Good) against 62 (Moderate). PM2.5 is setting the index in both.
Both readings come from nearby ground stations.
AbidjanKorhogo
Concentrations at the same moment as the index above, for the pollutants both places report. Lower is better. The dark marks on the PM2.5 and PM10 rows show the WHO's 24-hour guidelines (15 and 45 µg/m³).
The past week
Which had cleaner air over the past 6 days?
Over the past 6 days, on modeled daily averages, Abidjan averaged AQI 39 against 60, and it was the cleaner of the two on 6 of those days. A single reading can catch a city on a bad afternoon; the week says whether it was the weather or the place.
- Cleaner days
- Abidjan6Korhogo0
- Average AQI
- Abidjan39Korhogo60
- Worst day, AQI
- Abidjan51Korhogo69
The daily numbers (6 days)
| Day | Abidjan | Korhogo |
|---|---|---|
| Nov 5 | 28 | 48 |
| Nov 6 | 37 | 59 |
| Nov 7 | 42 | 54 |
| Nov 8 | 47 | 65 |
| Nov 9 | 51 | 69 |
| Nov 10 | 30 | 63 |
Daily averages from the CAMS atmospheric model for both places, so the week compares like with like. They can differ from today's reading at the top of the page wherever that comes from a ground station.
What it means today
Is it safe to go outside in Abidjan and Korhogo today?
Abidjan (AQI 50, Good): Air quality is satisfactory for everyone.
Korhogo (AQI 62, Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Exercise outdoors
- Abidjan
- A good day to be active outside.
- Korhogo
- Fine for most people; unusually sensitive people should take long or hard exercise easier.
Windows
- Abidjan
- Open them to air the house.
- Korhogo
- Fine to open; close them if you are sensitive to pollution.
Masks
- Abidjan
- Not needed.
- Korhogo
- Not needed for most people.
Air purifier
- Abidjan
- Not needed.
- Korhogo
- Worth running if you are sensitive.
Against everywhere else
How do Abidjan and Korhogo compare with the rest of the world?
Right now Abidjan's air is cleaner than 62% of the 5,420 places Airleaf tracks, and Korhogo's is cleaner than 45%. Within Ivory Coast, that is 53% and 0% of its 20 measured places.
Cleaner air than…
- Abidjan
- Beats 62%
- Korhogo
- Beats 45%
More tree cover than…
- Abidjan
- Beats 42%
- Korhogo
- Beats 25%
Includes model estimates as well as station readings, so it can differ from our most polluted and cleanest air rankings, which use station readings only.
Deforestation · 2001–2025
Which has lost more forest, Abidjan or Korhogo?
Abidjan has lost more: about 891 ha of forest within 10 km of its center from 2001 to 2025, against under 1 ha around Korhogo. 876 ha of that was cleared for good, for farms, mines or towns.
Measured within 10 km of each center, from the yearly satellite maps of forest loss: a wider circle than the one for tree cover, because forest is usually lost at a city's edges.
Worst year: 2009, with 119 ha lost.
Worst year: 2001, with under 1 ha lost.
| Abidjan | Korhogo | |
|---|---|---|
| Forest lost since 2001Cleared, burned or logged. | 891 ha | under 1 ha (better) |
| Cleared for goodTurned into farms, mines or towns. | 876 ha | under 1 ha (better) |
| Recent trend2021–2025 against the five years before. | Too little to call | Too little to call |
| Main known cause | Towns and roads (77%) | Farms, pasture and plantations (33%) |
Satellite timelapses
Watch both change, year by year
A clear satellite photo a year of the land around each city. Press play, turn on the forest cleared since the first year, or drag the before and after.
Abidjan
2018: satellite photo from January 2018 of a 5 × 5 km area about 7 km northeast of the city center.
Korhogo
2017: satellite photo from January 2017 of a 5 × 5 km area in the city center.
Trees
Which has more trees, Abidjan or Korhogo?
Abidjan has more tree cover: 18.0% of the land within 2 km of its center against 11.5% around Korhogo, or about 56,549 trees against 35,839.
The dark mark is each place's canopy target: 30% of the land, raised where air quality is poor.
| Abidjan | Korhogo | |
|---|---|---|
| Trees standingEstimated from the canopy area. | 56.5K (better) | 35.8K |
| Trees still neededTo reach the target. Fewer is better. | 37.7K (better) | 57.7K |
| CO₂ absorbed each yearBy the trees already standing. | 1.2M kg (better) | 788K kg |
Tree cover on the satellite image
The same 2 km radius around each center, with the tree cover the satellite found marked on it.
Reading these numbers
How this comparison is made
Air quality index
The US EPA index, computed from current pollutant concentrations: ground stations where a place has them nearby, and the CAMS atmospheric model everywhere else. It moves hour to hour, so it is a snapshot rather than a verdict on either place. The guideline marks are from the WHO's 2021 air quality guidelines.
Trees and forest
Tree cover is the share of ground under canopy within 2 km of each center, read from Sentinel-2 satellite imagery at 10 m detail. It measures that circle, not the whole municipality, which is what makes the two comparable. Forest loss comes from the University of Maryland's Global Forest Change maps.
More on the method on the About Airleaf page.
Frequently asked
Abidjan vs Korhogo: your questions answered
Is Abidjan cleaner than Korhogo?
On air quality, yes, right now: Abidjan reads AQI 50 against 62, a gap of 12 points on the US EPA index. This is a live reading rather than an annual average, so it can reverse within a day. Over the past 6 days, on modeled daily averages, Abidjan averaged AQI 39 against 60, and it was the cleaner of the two on 6 of those days.
Is it safe to exercise outdoors in Abidjan and Korhogo today?
In Abidjan, at AQI 50: Air quality is satisfactory for everyone. In Korhogo, at AQI 62: Unusually sensitive people should consider limiting long outdoor exertion.
Which has lost more forest, Abidjan or Korhogo?
Abidjan has lost more: about 891 ha of forest within 10 km of its center from 2001 to 2025, against under 1 ha around Korhogo. 876 ha of that was cleared for good, for farms, mines or towns.
Which has more trees, Abidjan or Korhogo?
Abidjan has more tree cover: 18.0% of the land within 2 km of its center against 11.5% around Korhogo, or about 56,549 trees against 35,839. Both figures describe the same-sized circle of ground around each center, not the whole municipality.
How many more trees do Abidjan and Korhogo need?
Abidjan needs about 37,699 more to reach its canopy target of 30%, and Korhogo about 57,655 to reach 30%. The target starts at 30% of the land and rises where air quality is poor.
Are Abidjan and Korhogo measured the same way?
The method is the same: the US EPA index for air, and Sentinel-2 satellite imagery at 10 m detail over an identical radius for trees. Both readings come from nearby ground stations. Nothing is adjusted for population, city limits or climate.
How often does the Abidjan vs Korhogo comparison update?
The air readings refresh about once an hour, and each reading's local time is shown at the top of the page. Tree cover comes from the latest clear satellite image of each area (Oct 22, 2026 and Oct 28, 2026), and the forest figures are published yearly.
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