City report · United States
Gardena, United States
Measured across a 15.5 mi (25 km) radius around Gardena, United States (758.1 sq mi)
- Tree cover
- 13.3%
- Air quality
- 62Moderate
- Trees in this area
- 5.0M
- More trees needed
- 6.3M
- Area analyzed
- 584.5 sq miland, in a 758.1 sq mi circle
- Satellite image
- Sep 14, 2026
Gardena, United States's tree count comes to 5,033,568 trees across 584.5 sq mi (1513.86 km²) of land — 17 points below the 30% tree-cover level considered healthy for this area, meaning roughly 6,320,344 more trees would close the gap. Air quality currently reads AQI 62 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Critically low
13.3% tree cover against a 30% healthy-neighborhood target, across 584.5 sq mi (1513.86 km²) of land.
Trees in this area
5,033,568
Target trees
11,353,912
More trees needed
6,320,344
CO₂ if planted / yr
139,048 t
Air quality detail
AQI 62Moderate
Observed Sep 22, 12:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
17.3
PM10
23.6
NO₂
9.2
O₃
92.0
SO₂
6.0
CO
140.0
Frequently asked
Questions about Gardena, United States
What is the tree count in Gardena, United States?
Gardena, United States has an estimated 5,033,568 trees across the 584.5 sq mi (1513.86 km²) of land measured — 13.3% tree cover, 17 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Gardena, United States need?
Gardena, United States needs roughly 6,320,344 more trees to close a 17-point shortfall against its 30% tree-cover target — about 139,048 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Gardena, United States right now?
The latest reading for Gardena, United States shows an AQI of 62 (Moderate), observed Sep 22, 12:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Gardena, United States'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 15.5 mi (25 km) radius around Gardena; 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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