City report · South Africa · Gauteng
Benoni
Measured across a 2 km radius around Benoni, South Africa (12.57 km²)
- Tree cover
- 15.3%
- Air quality
- 53Moderate
- Trees in this area
- 47.7K
- More trees needed
- 45.8K
- Area analyzed
- 12.47 km²land, in a 12.57 km² circle
- Satellite image
- Sep 14, 2026
Benoni's tree count comes to 47,682 trees across 12.47 km² of land — 15 points below the 30% tree-cover level considered healthy for this area, meaning roughly 45,812 more trees would close the gap. Air quality currently reads AQI 53 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Critically low
15.3% tree cover against a 30% healthy-neighborhood target, across 12.47 km² of land.
Trees in this area
47,682
Target trees
93,494
More trees needed
45,812
CO₂ if planted / yr
1,008 t
Air quality detail
AQI 53Moderate
Observed Sep 27, 06:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
13.2
PM10
13.5
NO₂
10.9
O₃
62.0
SO₂
17.3
CO
230.0
Frequently asked
Questions about Benoni
What is the tree count in Benoni?
Benoni has an estimated 47,682 trees across the 12.47 km² of land measured — 15.3% tree cover, 15 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Benoni need?
Benoni needs roughly 45,812 more trees to close a 15-point shortfall against its 30% tree-cover target — about 1,008 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Benoni right now?
The latest reading for Benoni shows an AQI of 53 (Moderate), observed Sep 27, 06:00 local time via Open-Meteo / CAMS, US EPA index. Unusually sensitive people should consider limiting long outdoor exertion.
How is Benoni'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 Benoni; the tree count is an estimate derived from that cover. Air-quality readings come from Open-Meteo / CAMS, US EPA index and may differ from street-level monitors.
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