- Tree cover
- 21.6%
- Air quality
- 51Moderate
- Trees in this area
- 67.8K
- More trees needed
- 26.4K
- Area analysed
- 12.56 km²land, in a 12.57 km² circle
- Satellite image
- Sep 15, 2026
Concord's tree count comes to 67,791 trees across 12.56 km² of land — 8 points below the 30% tree-cover level considered healthy for this area, meaning roughly 26,363 more trees would close the gap. Air quality currently reads AQI 51 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Below target
21.6% tree cover against a 30% healthy-neighbourhood target, across 12.56 km² of land.
Trees in this area
67,791
Target trees
94,154
More trees needed
26,363
CO₂ if planted / yr
580.0 t
Air quality detail
AQI 51Moderate
Observed Sep 21, 20:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
8.4
PM10
11.7
NO₂
8.7
O₃
57.0
SO₂
1.5
CO
131.0
Frequently asked
Questions about Concord
What is the tree count in Concord?
Concord has an estimated 67,791 trees across the 12.56 km² of land measured — 21.6% tree cover, 8 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Concord need?
Concord needs roughly 26,363 more trees to close a 8-point shortfall against its 30% tree-cover target — about 580.0 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Concord right now?
The latest reading for Concord shows an AQI of 51 (Moderate), observed Sep 21, 20:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Concord'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 Concord; 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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