City report · China · Xinjiang
Changji
Measured across a 2 km radius around Changji, Changji Hui Autonomous Prefecture, Xinjiang, China (12.57 km²)
- Tree cover
- 30.5%
- Air quality
- 49Good
- Trees in this area
- 95.7K
- More trees needed
- 0
- Area analyzed
- 12.56 km²land, in a 12.57 km² circle
- Satellite image
- Sep 26, 2026
Changji's tree count comes to 95,723 trees across 12.56 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 49 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
30.5% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
95,723
Target trees
95,723
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 49Good
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
9.7
PM10
53.0
NO₂
7.5
O₃
95.0
SO₂
4.5
CO
203.0
Frequently asked
Questions about Changji
What is the tree count in Changji?
Changji has an estimated 95,723 trees across the 12.56 km² of land measured — 30.5% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Changji need?
Changji has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Changji right now?
The latest reading for Changji shows an AQI of 49 (Good), observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Changji'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 Changji; 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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