City report · United States
Riverside
Measured across a 2 km radius around Magnolia Center, Riverside, CA, USA (12.57 km²)
- Tree cover
- 18.6%
- Air quality
- 59Moderate
- Trees in this area
- 58.4K
- More trees needed
- 35.8K
- Area analysed
- 12.57 km²
- Satellite image
- Sep 19, 2026
Riverside's tree count comes to 58,434 trees across 12.57 km² — 11 points below the 30% tree-cover level considered healthy for this area, meaning roughly 35,814 more trees would close the gap. Air quality currently reads AQI 59 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Below target
18.6% tree cover against a 30% healthy-neighbourhood target, across 12.57 km².
Trees in this area
58,434
Target trees
94,248
More trees needed
35,814
CO₂ if planted / yr
787.9 t
Air quality detail
AQI 59Moderate
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
8.8
PM10
12.0
NO₂
6.9
O₃
92.0
SO₂
0.8
CO
144.0
Frequently asked
Questions about Riverside
What is the tree count in Riverside?
Riverside has an estimated 58,434 trees across the 12.57 km² measured — 18.6% tree cover, 11 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Riverside need?
Riverside needs roughly 35,814 more trees to close a 11-point shortfall against its 30% tree-cover target — about 787.9 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Riverside right now?
The latest reading for Riverside shows an AQI of 59 (Moderate), observed Sep 21, 20:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Riverside'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 Magnolia 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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