- Tree cover
- 74.0%
- Air quality
- 69Moderate
- Trees in this area
- 232K
- More trees needed
- 0
- Area analysed
- 12.57 km²
- Satellite image
- Sep 14, 2026
Cary's tree count comes to 232,478 trees across 12.57 km² — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 69 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Healthy tree cover
74.0% tree cover against a 30% healthy-neighbourhood target, across 12.57 km².
Trees in this area
232,478
Target trees
232,478
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 69Moderate
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
8.2
PM10
9.9
NO₂
7.1
O₃
90.0
SO₂
0.7
CO
182.0
Frequently asked
Questions about Cary
What is the tree count in Cary?
Cary has an estimated 232,478 trees across the 12.57 km² measured — 74.0% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Cary need?
Cary has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Cary right now?
The latest reading for Cary shows an AQI of 69 (Moderate), observed Sep 21, 19:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Cary'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 Cary; 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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