Kusatsu
Measured across a 2 km radius around 1 Chome-15 Kusatsu, Shiga 525-0034, Japan (12.57 km²)
- Tree cover
- 10.4%
- Air quality
- 30Good
- Trees in this area
- 32.6K
- More trees needed
- 61.5K
- Area analyzed
- 12.54 km²land, in a 12.57 km² circle
- Satellite image
- May 19, 2026
Kusatsu's tree count comes to 32,607 trees across 12.54 km² of land — 20 points below the 30% tree-cover level considered healthy for this area, meaning roughly 61,452 more trees would close the gap. Air quality currently reads AQI 30 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Critically low
10.4% tree cover against a 30% healthy-neighborhood target, across 12.54 km² of land.
Trees in this area
32,607
Target trees
94,059
More trees needed
61,452
CO₂ if planted / yr
1,352 t
Air quality detail
AQI 30Good
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
6.7
PM10
6.7
NO₂
10.9
O₃
64.0
SO₂
5.5
CO
204.0
Frequently asked
Questions about Kusatsu
What is the tree count in Kusatsu?
Kusatsu has an estimated 32,607 trees across the 12.54 km² of land measured — 10.4% tree cover, 20 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Kusatsu need?
Kusatsu needs roughly 61,452 more trees to close a 20-point shortfall against its 30% tree-cover target — about 1,352 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Kusatsu right now?
The latest reading for Kusatsu shows an AQI of 30 (Good), observed Sep 27, 10:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Kusatsu'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 1 Chome-15 Kusatsu; 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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