Hitachi-Naka
Measured across a 2 km radius around 2 Chome-10 Higashiishikawa, Hitachinaka, Ibaraki 312-0052, Japan (12.57 km²)
- Tree cover
- 21.9%
- Air quality
- 44Good
- Trees in this area
- 68.8K
- More trees needed
- 25.4K
- Area analyzed
- 12.57 km²
- Satellite image
- Aug 19, 2026
Hitachi-Naka's tree count comes to 68,801 trees across 12.57 km² — 8 points below the 30% tree-cover level considered healthy for this area, meaning roughly 25,447 more trees would close the gap. Air quality currently reads AQI 44 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Below target
21.9% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
68,801
Target trees
94,248
More trees needed
25,447
CO₂ if planted / yr
559.8 t
Air quality detail
AQI 44Good
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
3.4
PM10
4.8
NO₂
1.5
O₃
94.0
SO₂
2.4
CO
127.0
Frequently asked
Questions about Hitachi-Naka
What is the tree count in Hitachi-Naka?
Hitachi-Naka has an estimated 68,801 trees across the 12.57 km² measured — 21.9% tree cover, 8 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Hitachi-Naka need?
Hitachi-Naka needs roughly 25,447 more trees to close a 8-point shortfall against its 30% tree-cover target — about 559.8 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Hitachi-Naka right now?
The latest reading for Hitachi-Naka shows an AQI of 44 (Good), observed Sep 27, 13:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Hitachi-Naka'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-10 Higashiishikawa; 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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