City report · China · Chongqing
Changyuan
Measured across a 2 km radius around Rongchang District, Chongqing, China (12.57 km²)
- Tree cover
- 47.6%
- Air quality
- 87Moderate
- Trees in this area
- 149K
- More trees needed
- 0
- Area analyzed
- 12.51 km²land, in a 12.57 km² circle
- Satellite image
- Sep 7, 2026
Changyuan's tree count comes to 148,792 trees across 12.51 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 87 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Healthy tree cover
47.6% tree cover against a 30% healthy-neighborhood target, across 12.51 km² of land.
Trees in this area
148,792
Target trees
148,792
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 87Moderate
Observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
29.0
PM10
29.1
NO₂
3.2
O₃
118.0
SO₂
3.7
CO
344.0
Frequently asked
Questions about Changyuan
What is the tree count in Changyuan?
Changyuan has an estimated 148,792 trees across the 12.51 km² of land measured — 47.6% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Changyuan need?
Changyuan has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Changyuan right now?
The latest reading for Changyuan shows an AQI of 87 (Moderate), observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Unusually sensitive people should consider limiting long outdoor exertion.
How is Changyuan'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 Rongchang District; 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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