Klagenfurt am Wörthersee vs Verona
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.
Klagenfurt am Wörthersee has more tree cover — 48.6% against 36.2%.
Klagenfurt am Wörthersee has cleaner air right now — AQI 50 against 55.
- Tree cover gap
- 12.4 points
- Klagenfurt am Wörthersee is ahead.
- Air quality gap
- 5 AQI
- Klagenfurt am Wörthersee is cleaner.
- Trees between them
- 43.2K
- Klagenfurt am Wörthersee has more standing.
Austria
Italy
Tree cover
Share of the 2 km radius under canopy.
48.6%
36.2%
Air quality index
US EPA index, live, with its band. Lower is better.
50 · Good
55 · Moderate
Trees standing
Estimated from the measured canopy area.
153K
110K
Trees still needed
To reach the same canopy target. Fewer is better.
0
0
CO₂ absorbed each year
By the trees already standing.
3.4M kg
2.4M 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. Klagenfurt am Wörthersee is read from nearby ground stations and Verona is modelled — worth knowing, since the two are not quite like for like.
PM2.5
Fine particles, the pollutant that usually sets the index.
11.9 µg/m³
13.9 µg/m³
PM10
Coarser particles — dust, pollen, road grit.
17.4 µg/m³
19.4 µg/m³
Nitrogen dioxide
Mostly traffic and combustion.
13.3 µg/m³
8.3 µg/m³
Ozone
Forms in sunlight; peaks on hot, still afternoons.
6.5 µg/m³
86 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 | Klagenfurt am Wörthersee | Verona |
|---|---|---|
| 22 Sept | 31 | 37 |
| 23 Sept | 30 | 34 |
| 24 Sept | 35 | 56 |
| 25 Sept | 30 | 42 |
| 26 Sept | 42 | 40 |
| 27 Sept | 45 | 50 |
| 28 Sept | 62 | 59 |
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. Klagenfurt am Wörthersee leads here at 48.6%.
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: Klagenfurt am Wörthersee reads 50 (good) and Verona reads 55 (moderate) right now.
Frequently asked
Klagenfurt am Wörthersee and Verona, answered
Which has more trees, Klagenfurt am Wörthersee or Verona?
Klagenfurt am Wörthersee, with roughly 152,681 trees inside its 2 km radius against 109,518. Tree cover tells a slightly different story from raw count: Klagenfurt am Wörthersee has the denser canopy at 48.6%.
Which has better air quality, Klagenfurt am Wörthersee or Verona?
Klagenfurt am Wörthersee right now, at AQI 50 against 55 — a gap of 5 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?
Klagenfurt am Wörthersee needs about 0 more to reach its canopy target, and Verona 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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