Ḩalwān
Measured across a 2 km radius around Helwan, Helwan El Balad, Helwan, Cairo Governorate, Egypt (12.57 km²)
- Tree cover
- 15.2%
- Air quality
- 36Good
- Trees in this area
- 42.4K
- More trees needed
- 41.3K
- Area analyzed
- 11.16 km²land, in a 12.57 km² circle
- Satellite image
- Sep 26, 2026
Ḩalwān's tree count comes to 42,404 trees across 11.16 km² of land — 15 points below the 30% tree-cover level considered healthy for this area, meaning roughly 41,288 more trees would close the gap. Air quality currently reads AQI 36 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Critically low
15.2% tree cover against a 30% healthy-neighborhood target, across 11.16 km² of land.
Trees in this area
42,404
Target trees
83,692
More trees needed
41,288
CO₂ if planted / yr
908.3 t
Air quality detail
AQI 36Good
Observed Sep 27, 04:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.6
PM10
10.9
NO₂
18.4
O₃
58.0
SO₂
16.8
CO
129.0
Frequently asked
Questions about Ḩalwān
What is the tree count in Ḩalwān?
Ḩalwān has an estimated 42,404 trees across the 11.16 km² of land measured — 15.2% tree cover, 15 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Ḩalwān need?
Ḩalwān needs roughly 41,288 more trees to close a 15-point shortfall against its 30% tree-cover target — about 908.3 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Ḩalwān right now?
The latest reading for Ḩalwān shows an AQI of 36 (Good), observed Sep 27, 04:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Ḩalwān'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 Helwan; 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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