Tsukuba
Measured across a 2 km radius around 1 Chome Azuma, Tsukuba, Ibaraki 305-0031, Japan (12.57 km²)
- Tree cover
- 43.5%
- Air quality
- 42Good
- Trees in this area
- 137K
- More trees needed
- 0
- Area analyzed
- 12.57 km²
- Satellite image
- Jul 20, 2026
Tsukuba's tree count comes to 136,659 trees across 12.57 km² — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 42 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
43.5% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
136,659
Target trees
136,659
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 42Good
Observed Sep 27, 13:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.7
PM10
7.1
NO₂
2.4
O₃
89.0
SO₂
2.5
CO
131.0
Frequently asked
Questions about Tsukuba
What is the tree count in Tsukuba?
Tsukuba has an estimated 136,659 trees across the 12.57 km² measured — 43.5% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Tsukuba need?
Tsukuba has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Tsukuba right now?
The latest reading for Tsukuba shows an AQI of 42 (Good), observed Sep 27, 13:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Tsukuba'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 Azuma; 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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