City report · Malaysia · Penang
Butterworth
Measured across a 2 km radius around Butterworth, Penang, Malaysia (12.57 km²)
- Tree cover
- 21.7%
- Air quality
- 73Moderate
- Trees in this area
- 28.0K
- More trees needed
- 10.7K
- Area analyzed
- 5.17 km²land, in a 12.57 km² circle
- Satellite image
- Aug 28, 2026
Butterworth's tree count comes to 28,019 trees across 5.17 km² of land — 8 points below the 30% tree-cover level considered healthy for this area, meaning roughly 10,717 more trees would close the gap. Air quality currently reads AQI 73 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Below target
21.7% tree cover against a 30% healthy-neighborhood target, across 5.17 km² of land.
Trees in this area
28,019
Target trees
38,736
More trees needed
10,717
CO₂ if planted / yr
235.8 t
Air quality detail
AQI 73Moderate
Observed Sep 27, 11:00 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
15.2
PM10
15.7
NO₂
3.6
O₃
121.0
SO₂
9.7
CO
370.0
Frequently asked
Questions about Butterworth
What is the tree count in Butterworth?
Butterworth has an estimated 28,019 trees across the 5.17 km² of land measured — 21.7% tree cover, 8 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Butterworth need?
Butterworth needs roughly 10,717 more trees to close a 8-point shortfall against its 30% tree-cover target — about 235.8 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Butterworth right now?
The latest reading for Butterworth shows an AQI of 73 (Moderate), observed Sep 27, 11:00 local time via Open-Meteo / CAMS, US EPA index. Unusually sensitive people should consider limiting long outdoor exertion.
How is Butterworth'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 Butterworth; 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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