- Tree cover
- 10.1%
- Air quality
- 52Moderate
- Trees in this area
- 31.7K
- More trees needed
- 62.5K
- Area analysed
- 12.57 km²
- Satellite image
- Sep 20, 2026
Mesa's tree count comes to 31,730 trees across 12.57 km² — 20 points below the 30% tree-cover level considered healthy for this area, meaning roughly 62,518 more trees would close the gap. Air quality currently reads AQI 52 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Critically low
10.1% tree cover against a 30% healthy-neighbourhood target, across 12.57 km².
Trees in this area
31,730
Target trees
94,248
More trees needed
62,518
CO₂ if planted / yr
1,375 t
Air quality detail
AQI 52Moderate
Observed Sep 21, 18:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
7.2
PM10
45.6
NO₂
5.6
O₃
63.0
SO₂
0.4
CO
125.0
Frequently asked
Questions about Mesa
What is the tree count in Mesa?
Mesa has an estimated 31,730 trees across the 12.57 km² measured — 10.1% tree cover, 20 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Mesa need?
Mesa needs roughly 62,518 more trees to close a 20-point shortfall against its 30% tree-cover target — about 1,375 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Mesa right now?
The latest reading for Mesa shows an AQI of 52 (Moderate), observed Sep 21, 18:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Mesa'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 Mesa; 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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