Başakşehir vs Bucharest
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.
Bucharest has more tree cover — 23.9% against 18.6%.
Bucharest has cleaner air right now — AQI 30 against 147.
- Tree cover gap
- 5.3 points
- Bucharest is ahead.
- Air quality gap
- 117 AQI
- Bucharest is cleaner.
- Trees between them
- 16.6K
- Bucharest has more standing.
Turkey
Romania
Tree cover
Share of the 2 km radius under canopy.
18.6%
23.9%
Air quality index
US EPA index, live, with its band. Lower is better.
147 · Unhealthy for sensitive groups
30 · Good
Trees standing
Estimated from the measured canopy area.
58.4K
74.9K
Trees still needed
To reach the same canopy target. Fewer is better.
51.5K
19.1K
CO₂ absorbed each year
By the trees already standing.
1.3M kg
1.6M 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. Both are read from nearby ground stations.
PM2.5
Fine particles, the pollutant that usually sets the index.
54.3 µg/m³
7.2 µg/m³
PM10
Coarser particles — dust, pollen, road grit.
67.3 µg/m³
9.6 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 | Başakşehir | Bucharest |
|---|---|---|
| 22 Sept | 34 | 27 |
| 23 Sept | 30 | 26 |
| 24 Sept | 28 | 38 |
| 25 Sept | 41 | 43 |
| 26 Sept | 33 | 27 |
| 27 Sept | 36 | 28 |
| 28 Sept | 34 | 27 |
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. Bucharest leads here at 23.9%.
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: Başakşehir reads 147 (unhealthy for sensitive groups) and Bucharest reads 30 (good) right now.
Frequently asked
Başakşehir and Bucharest, answered
Which has more trees, Başakşehir or Bucharest?
Bucharest, with roughly 74,934 trees inside its 2 km radius against 58,375. Tree cover tells a slightly different story from raw count: Bucharest has the denser canopy at 23.9%.
Which has better air quality, Başakşehir or Bucharest?
Bucharest right now, at AQI 30 against 147 — a gap of 117 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?
Başakşehir needs about 51,471 more to reach its canopy target, and Bucharest about 19,125. 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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