Bégoua vs Kampala
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.
Bégoua has more tree cover — 52.2% against 17.0%.
Bégoua has cleaner air right now — AQI 26 against 181.
- Tree cover gap
- 35.2 points
- Bégoua is ahead.
- Air quality gap
- 155 AQI
- Bégoua is cleaner.
- Trees between them
- 111K
- Bégoua has more standing.
Tree cover
Share of the 2 km radius under canopy.
52.2%
17.0%
Air quality index
US EPA index, live, with its band. Lower is better.
26 · Good
181 · Unhealthy
Trees standing
Estimated from the measured canopy area.
164K
53.4K
Trees still needed
To reach the same canopy target. Fewer is better.
0
72.3K
CO₂ absorbed each year
By the trees already standing.
3.6M kg
1.2M 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. Kampala is read from nearby ground stations and Bégoua is modelled — worth knowing, since the two are not quite like for like.
PM2.5
Fine particles, the pollutant that usually sets the index.
6.3 µg/m³
114 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 | Bégoua | Kampala |
|---|---|---|
| 23 Sept | 50 | 79 |
| 24 Sept | 30 | 93 |
| 25 Sept | 39 | 82 |
| 26 Sept | 31 | 98 |
| 27 Sept | 37 | 68 |
| 28 Sept | 30 | 68 |
| 29 Sept | 27 | 79 |
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. Bégoua leads here at 52.2%.
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: Bégoua reads 26 (good) and Kampala reads 181 (unhealthy) right now.
Frequently asked
Bégoua and Kampala, answered
Which has more trees, Bégoua or Kampala?
Bégoua, with roughly 163,991 trees inside its 2 km radius against 53,407. Tree cover tells a slightly different story from raw count: Bégoua has the denser canopy at 52.2%.
Which has better air quality, Bégoua or Kampala?
Bégoua right now, at AQI 26 against 181 — a gap of 155 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?
Bégoua needs about 0 more to reach its canopy target, and Kampala about 72,257. 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.
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