City report · Indonesia · Central Java
Pekalongan
Measured across a 2 km radius around Pekalongan, Pekalongan City, Central Java, Indonesia (12.57 km²)
- Tree cover
- 19.5%
- Air quality
- 127Unhealthy for sensitive groups
- Trees in this area
- 61.3K
- More trees needed
- 48.7K
- Area analyzed
- 12.57 km²
- Satellite image
- Sep 22, 2026
Pekalongan's tree count comes to 61,261 trees across 12.57 km² — 15 points below the 35% tree-cover level considered healthy for this area, meaning roughly 48,695 more trees would close the gap. Air quality currently reads AQI 127 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Tree cover detail
Critically low
19.5% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
61,261
Target trees
109,956
More trees needed
48,695
CO₂ if planted / yr
1,071 t
Air quality detail
AQI 127Unhealthy 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
46.2
PM10
50.1
NO₂
4.6
O₃
150.0
SO₂
17.8
CO
296.0
Frequently asked
Questions about Pekalongan
What is the tree count in Pekalongan?
Pekalongan has an estimated 61,261 trees across the 12.57 km² measured — 19.5% tree cover, 15 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Pekalongan need?
Pekalongan needs roughly 48,695 more trees to close a 15-point shortfall against its 35% tree-cover target — about 1,071 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Pekalongan right now?
The latest reading for Pekalongan shows an AQI of 127 (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 Pekalongan'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 Pekalongan; 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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