City report · China · Chongqing
Huixing
Measured across a 2 km radius around Yubei District, Chongqing, China (12.57 km²)
- Tree cover
- 44.1%
- Air quality
- 139Unhealthy for sensitive groups
- Trees in this area
- 138K
- More trees needed
- 0
- Area analyzed
- 12.51 km²land, in a 12.57 km² circle
- Satellite image
- Aug 27, 2026
Huixing's tree count comes to 137,852 trees across 12.51 km² of land — already at or above the 35% tree-cover level considered healthy for this area. Air quality currently reads AQI 139 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Tree cover detail
Healthy tree cover
44.1% tree cover against a 35% healthy-neighborhood target, across 12.51 km² of land.
Trees in this area
137,852
Target trees
137,852
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 139Unhealthy for sensitive groups
Observed Sep 27, 10:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Sensitive groups should limit long or intense outdoor activity.
PM2.5
50.9
PM10
51.1
NO₂
39.4
O₃
89.0
SO₂
14.6
CO
780.0
Frequently asked
Questions about Huixing
What is the tree count in Huixing?
Huixing has an estimated 137,852 trees across the 12.51 km² of land measured — 44.1% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Huixing need?
Huixing has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Huixing right now?
The latest reading for Huixing shows an AQI of 139 (Unhealthy for sensitive groups), observed Sep 27, 10:00 local time via Open-Meteo / CAMS, US EPA index. Sensitive groups should limit long or intense outdoor activity.
How is Huixing'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 Yubei 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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