City report · South Africa · Gauteng
Germiston
Measured across a 2 km radius around Germiston, 1400, South Africa (12.57 km²)
- Tree cover
- 19.2%
- Air quality
- 119Unhealthy for sensitive groups
- Trees in this area
- 58.1K
- More trees needed
- 47.8K
- Area analyzed
- 12.1 km²land, in a 12.57 km² circle
- Satellite image
- Sep 22, 2026
Germiston's tree count comes to 58,087 trees across 12.1 km² of land — 16 points below the 35% tree-cover level considered healthy for this area, meaning roughly 47,801 more trees would close the gap. Air quality currently reads AQI 119 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Tree cover detail
Critically low
19.2% tree cover against a 35% healthy-neighborhood target, across 12.1 km² of land.
Trees in this area
58,087
Target trees
105,888
More trees needed
47,801
CO₂ if planted / yr
1,052 t
Air quality detail
AQI 119Unhealthy for sensitive groups
Observed Sep 27, 06:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
42.8
PM10
43.0
NO₂
25.5
O₃
46.0
SO₂
37.3
CO
254.0
Frequently asked
Questions about Germiston
What is the tree count in Germiston?
Germiston has an estimated 58,087 trees across the 12.1 km² of land measured — 19.2% tree cover, 16 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Germiston need?
Germiston needs roughly 47,801 more trees to close a 16-point shortfall against its 35% tree-cover target — about 1,052 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Germiston right now?
The latest reading for Germiston shows an AQI of 119 (Unhealthy for sensitive groups), observed Sep 27, 06:00 local time via Open-Meteo / CAMS, US EPA index. Sensitive groups should limit long or intense outdoor activity.
How is Germiston'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 Germiston; 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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