- Tree cover
- 11.2%
- Air quality
- 61Moderate
- Trees in this area
- 35.2K
- More trees needed
- 59.1K
- Area analysed
- 12.57 km²
- Satellite image
- Sep 19, 2026
Pomona's tree count comes to 35,186 trees across 12.57 km² — 19 points below the 30% tree-cover level considered healthy for this area, meaning roughly 59,062 more trees would close the gap. Air quality currently reads AQI 61 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Critically low
11.2% tree cover against a 30% healthy-neighbourhood target, across 12.57 km².
Trees in this area
35,186
Target trees
94,248
More trees needed
59,062
CO₂ if planted / yr
1,299 t
Air quality detail
AQI 61Moderate
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
11.1
PM10
15.5
NO₂
4.3
O₃
115.0
SO₂
1.4
CO
157.0
Frequently asked
Questions about Pomona
What is the tree count in Pomona?
Pomona has an estimated 35,186 trees across the 12.57 km² measured — 11.2% tree cover, 19 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Pomona need?
Pomona needs roughly 59,062 more trees to close a 19-point shortfall against its 30% tree-cover target — about 1,299 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Pomona right now?
The latest reading for Pomona shows an AQI of 61 (Moderate), observed Sep 21, 18:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Pomona'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 Pomona; 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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