City report · United States
Chattanooga
Measured across a 2 km radius around City Center, Chattanooga, TN, USA (12.57 km²)
- Tree cover
- 19.9%
- Air quality
- 66Moderate
- Trees in this area
- 53.1K
- More trees needed
- 27.0K
- Area analysed
- 10.68 km²land, in a 12.57 km² circle
- Satellite image
- Sep 20, 2026
Chattanooga's tree count comes to 53,140 trees across 10.68 km² of land — 10 points below the 30% tree-cover level considered healthy for this area, meaning roughly 26,971 more trees would close the gap. Air quality currently reads AQI 66 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Below target
19.9% tree cover against a 30% healthy-neighbourhood target, across 10.68 km² of land.
Trees in this area
53,140
Target trees
80,111
More trees needed
26,971
CO₂ if planted / yr
593.4 t
Air quality detail
AQI 66Moderate
Observed Sep 21, 19:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
10.9
PM10
11.1
NO₂
6.7
O₃
90.0
SO₂
0.7
CO
159.0
Frequently asked
Questions about Chattanooga
What is the tree count in Chattanooga?
Chattanooga has an estimated 53,140 trees across the 10.68 km² of land measured — 19.9% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Chattanooga need?
Chattanooga needs roughly 26,971 more trees to close a 10-point shortfall against its 30% tree-cover target — about 593.4 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Chattanooga right now?
The latest reading for Chattanooga shows an AQI of 66 (Moderate), observed Sep 21, 19:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Chattanooga'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 City Center; the tree count is an estimate derived from that cover. Air-quality readings come from Open-Meteo / CAMS and may differ from street-level monitors.
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