Efon-Alaaye vs Ise-Ekiti
Tree cover and air quality for both, measured the same way: Sentinel-2 imagery at 10 m detail over a 2 km radius from each city centre, and the live US EPA air quality index. Same radius and same index, so the two numbers compare directly.
Efon-Alaaye has more tree cover — 83.7% against 66.7%.
Ise-Ekiti has cleaner air right now — AQI 22 against 30.
- Tree cover gap
- 17.0 points
- Efon-Alaaye is ahead.
- Air quality gap
- 8 AQI
- Ise-Ekiti is cleaner.
- Trees between them
- 53.4K
- Efon-Alaaye has more standing.
Nigeria
Nigeria
Tree cover
Share of the 2 km radius under canopy.
83.7%
66.7%
Air quality index
US EPA index, live, with its band. Lower is better.
30 · Good
22 · Good
Trees standing
Estimated from the measured canopy area.
263K
210K
Trees still needed
To reach the same canopy target. Fewer is better.
0
0
CO₂ absorbed each year
By the trees already standing.
5.8M kg
4.6M kg
Air quality in detail
What each city is breathing
Concentrations in µg/m³, measured at the same moment as the index above. Lower is better in every row. Ise-Ekiti is read from nearby ground stations and Efon-Alaaye is modelled — worth knowing, since the two are not quite like for like.
PM2.5
Fine particles, the pollutant that usually sets the index.
7.2 µg/m³
5.3 µg/m³
PM10
Coarser particles — dust, pollen, road grit.
8 µg/m³
5.7 µg/m³
Nitrogen dioxide
Mostly traffic and combustion.
4.6 µg/m³
1.5 µg/m³
Ozone
Forms in sunlight; peaks on hot, still afternoons.
40 µg/m³
64 µg/m³
The last week, day by day
A single reading can catch a city on a bad afternoon. The week says whether it was the weather or the place.
| Day | Efon-Alaaye | Ise-Ekiti |
|---|---|---|
| 22 Sept | 36 | 32 |
| 23 Sept | 40 | 33 |
| 24 Sept | 63 | 49 |
| 25 Sept | 76 | 66 |
| 26 Sept | 50 | 43 |
| 27 Sept | 37 | 40 |
Reading these numbers
What is actually being measured
Tree cover
The share of ground under canopy inside a 2 km radius of each city centre, read from Sentinel-2 satellite imagery at 10 m detail. It is a measurement of that circle, not of the whole municipality — which is exactly what makes the two comparable, since city boundaries are drawn to wildly different rules around the world. Efon-Alaaye leads here at 83.7%.
Air quality index
The live US EPA index, computed from current pollutant concentrations — ground stations where a city has them nearby, and a model everywhere else. It moves hour to hour, so this is a snapshot rather than a verdict on either place: Efon-Alaaye reads 30 (good) and Ise-Ekiti reads 22 (good) right now.
Frequently asked
Efon-Alaaye and Ise-Ekiti, answered
Which has more trees, Efon-Alaaye or Ise-Ekiti?
Efon-Alaaye, with roughly 262,951 trees inside its 2 km radius against 209,544. Tree cover tells a slightly different story from raw count: Efon-Alaaye has the denser canopy at 83.7%.
Which has better air quality, Efon-Alaaye or Ise-Ekiti?
Ise-Ekiti right now, at AQI 22 against 30 — a gap of 8 points. This is a live reading rather than an annual average, so it can reverse within a day.
How many more trees does each city need?
Efon-Alaaye needs about 0 more to reach its canopy target, and Ise-Ekiti about 0. The target is the same share of ground for both, so the figures are directly comparable.
Are these two measured the same way?
Yes — that is the point of the page. Identical radius, identical satellite source at 10 m detail, and the same US EPA index for air. Nothing here is adjusted for population, city limits or climate, so the numbers describe the same-sized circle of ground in each place.
Keep going
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