City report · United States
San Bernardino
Measured across a 2 km radius around Carousel, San Bernardino, CA, USA (12.57 km²)
- Tree cover
- 4.8%
- Air quality
- 59Moderate
- Trees in this area
- 15.1K
- More trees needed
- 79.2K
- Area analysed
- 12.57 km²
- Satellite image
- Sep 19, 2026
San Bernardino's tree count comes to 15,080 trees across 12.57 km² — 25 points below the 30% tree-cover level considered healthy for this area, meaning roughly 79,168 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
Critically low
4.8% tree cover against a 30% healthy-neighbourhood target, across 12.57 km².
Trees in this area
15,080
Target trees
94,248
More trees needed
79,168
CO₂ if planted / yr
1,742 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
153.0
Frequently asked
Questions about San Bernardino
What is the tree count in San Bernardino?
San Bernardino has an estimated 15,080 trees across the 12.57 km² measured — 4.8% tree cover, 25 percentage points short of the 30% tree-cover target set for this area.
How many more trees does San Bernardino need?
San Bernardino needs roughly 79,168 more trees to close a 25-point shortfall against its 30% tree-cover target — about 1,742 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in San Bernardino right now?
The latest reading for San Bernardino 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 San Bernardino'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 Carousel; 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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