Chitato vs Kolwezi
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.
Chitato has more tree cover — 98.6% against 4.0%.
Chitato has cleaner air right now — AQI 49 against 150.
- Tree cover gap
- 94.6 points
- Chitato is ahead.
- Air quality gap
- 101 AQI
- Chitato is cleaner.
- Trees between them
- 297K
- Chitato has more standing.
Tree cover
Share of the 2 km radius under canopy.
98.6%
4.0%
Air quality index
US EPA index, live, with its band. Lower is better.
49 · Good
150 · Unhealthy for sensitive groups
Trees standing
Estimated from the measured canopy area.
310K
12.3K
Trees still needed
To reach the same canopy target. Fewer is better.
0
95.1K
CO₂ absorbed each year
By the trees already standing.
6.8M kg
270K 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. Kolwezi is read from nearby ground stations and Chitato is modelled — worth knowing, since the two are not quite like for like.
PM2.5
Fine particles, the pollutant that usually sets the index.
11.8 µg/m³
55.4 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 | Chitato | Kolwezi |
|---|---|---|
| 22 Sept | 66 | 96 |
| 23 Sept | 52 | 78 |
| 24 Sept | 70 | 64 |
| 25 Sept | 95 | 69 |
| 26 Sept | 64 | 80 |
| 27 Sept | 67 | 110 |
| 28 Sept | 40 | 87 |
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. Chitato leads here at 98.6%.
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: Chitato reads 49 (good) and Kolwezi reads 150 (unhealthy for sensitive groups) right now.
Frequently asked
Chitato and Kolwezi, answered
Which has more trees, Chitato or Kolwezi?
Chitato, with roughly 309,761 trees inside its 2 km radius against 12,265. Tree cover tells a slightly different story from raw count: Chitato has the denser canopy at 98.6%.
Which has better air quality, Chitato or Kolwezi?
Chitato right now, at AQI 49 against 150 — a gap of 101 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?
Chitato needs about 0 more to reach its canopy target, and Kolwezi about 95,052. 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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