City report · Bangladesh · Chittagong
Karnaphuli
Measured across a 2 km radius around Rangamati, Chattogram, Bangladesh (12.57 km²)
- Tree cover
- 94.3%
- Air quality
- 40Good
- Trees in this area
- 224K
- More trees needed
- 0
- Area analyzed
- 9.52 km²land, in a 12.57 km² circle
- Satellite image
- Sep 21, 2026
Karnaphuli's tree count comes to 224,263 trees across 9.52 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 40 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
94.3% tree cover against a 30% healthy-neighborhood target, across 9.52 km² of land.
Trees in this area
224,263
Target trees
224,263
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 40Good
Observed Sep 27, 10:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.8
PM10
10.4
NO₂
0.4
O₃
85.0
SO₂
2.2
CO
113.0
Frequently asked
Questions about Karnaphuli
What is the tree count in Karnaphuli?
Karnaphuli has an estimated 224,263 trees across the 9.52 km² of land measured — 94.3% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Karnaphuli need?
Karnaphuli has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Karnaphuli right now?
The latest reading for Karnaphuli shows an AQI of 40 (Good), observed Sep 27, 10:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Karnaphuli'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 Rangamati; 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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