City report · Japan · Yamaguchi
Shūnan
Measured across a 2 km radius around Tokuyama, Shunan, Yamaguchi 745-0851, Japan (12.57 km²)
- Tree cover
- 94.6%
- Air quality
- 43Good
- Trees in this area
- 297K
- More trees needed
- 0
- Area analyzed
- 12.57 km²
- Satellite image
- Sep 17, 2026
Shūnan's tree count comes to 297,195 trees across 12.57 km² — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 43 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
94.6% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
297,195
Target trees
297,195
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 43Good
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
4.7
PM10
4.8
NO₂
8.4
O₃
92.0
SO₂
3.8
CO
254.0
Frequently asked
Questions about Shūnan
What is the tree count in Shūnan?
Shūnan has an estimated 297,195 trees across the 12.57 km² measured — 94.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Shūnan need?
Shūnan has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Shūnan right now?
The latest reading for Shūnan shows an AQI of 43 (Good), observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Shūnan'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 Tokuyama; 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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