City report · Indonesia · Central Java
Surakarta
Measured across a 2 km radius around Surakarta, Surakarta City, Central Java, Indonesia (12.57 km²)
- Tree cover
- 7.2%
- Air quality
- 129Unhealthy for sensitive groups
- Trees in this area
- 22.6K
- More trees needed
- 87.3K
- Area analyzed
- 12.57 km²
- Satellite image
- Sep 24, 2026
Surakarta's tree count comes to 22,619 trees across 12.57 km² — 28 points below the 35% tree-cover level considered healthy for this area, meaning roughly 87,336 more trees would close the gap. Air quality currently reads AQI 129 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Tree cover detail
Critically low
7.2% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
22,619
Target trees
109,955
More trees needed
87,336
CO₂ if planted / yr
1,921 t
Air quality detail
AQI 129Unhealthy for sensitive groups
Observed Sep 27, 11:00 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
26.1
PM10
27.2
NO₂
1.8
O₃
155.0
SO₂
7.1
CO
403.0
Frequently asked
Questions about Surakarta
What is the tree count in Surakarta?
Surakarta has an estimated 22,619 trees across the 12.57 km² measured — 7.2% tree cover, 28 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Surakarta need?
Surakarta needs roughly 87,336 more trees to close a 28-point shortfall against its 35% tree-cover target — about 1,921 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Surakarta right now?
The latest reading for Surakarta shows an AQI of 129 (Unhealthy for sensitive groups), observed Sep 27, 11:00 local time via Open-Meteo / CAMS, US EPA index. Sensitive groups should limit long or intense outdoor activity.
How is Surakarta'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 Surakarta; 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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