City report · Germany · Bavaria
Regensburg
Measured across a 2 km radius around Regensburg, Germany (12.57 km²)
- Tree cover
- 42.1%
- Air quality
- 41Good
- Trees in this area
- 128K
- More trees needed
- 0
- Area analyzed
- 12.14 km²land, in a 12.57 km² circle
- Satellite image
- Sep 26, 2026
Regensburg's tree count comes to 127,764 trees across 12.14 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 41 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
42.1% tree cover against a 30% healthy-neighborhood target, across 12.14 km² of land.
Trees in this area
127,764
Target trees
127,764
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 41Good
Observed Sep 27, 06:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
9.9
PM10
14.1
NO₂
8.0
O₃
35.0
SO₂
0.7
CO
200.0
Frequently asked
Questions about Regensburg
What is the tree count in Regensburg?
Regensburg has an estimated 127,764 trees across the 12.14 km² of land measured — 42.1% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Regensburg need?
Regensburg has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Regensburg right now?
The latest reading for Regensburg shows an AQI of 41 (Good), observed Sep 27, 06:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Regensburg's tree cover and air quality measured?
Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Regensburg; the tree count is an estimate derived from that cover. Air-quality readings come from Open-Meteo / CAMS, US EPA index and may differ from street-level monitors.
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