City report · Japan
Kofu
Measured across a 2 km radius around 2 Chome-5 Marunouchi, Kofu, Yamanashi 400-0031, Japan (12.57 km²)
- Tree cover
- 19.6%
- Air quality
- 48Good
- Trees in this area
- 61.6K
- More trees needed
- 32.7K
- Area analyzed
- 12.57 km²
- Satellite image
- Sep 18, 2026
Kofu's tree count comes to 61,575 trees across 12.57 km² — 10 points below the 30% tree-cover level considered healthy for this area, meaning roughly 32,673 more trees would close the gap. Air quality currently reads AQI 48 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Below target
19.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
61,575
Target trees
94,248
More trees needed
32,673
CO₂ if planted / yr
718.8 t
Air quality detail
AQI 48Good
Observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.2
PM10
4.3
NO₂
1.2
O₃
102.0
SO₂
2.4
CO
170.0
Frequently asked
Questions about Kofu
What is the tree count in Kofu?
Kofu has an estimated 61,575 trees across the 12.57 km² measured — 19.6% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Kofu need?
Kofu needs roughly 32,673 more trees to close a 10-point shortfall against its 30% tree-cover target — about 718.8 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Kofu right now?
The latest reading for Kofu shows an AQI of 48 (Good), observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Kofu'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 2 Chome-5 Marunouchi; 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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