City report · China · Chongqing
Gunan
Measured across a 2 km radius around Qijiang District, Chongqing, China (12.57 km²)
- Tree cover
- 63.5%
- Air quality
- 151Unhealthy
- Trees in this area
- 197K
- More trees needed
- 0
- Area analyzed
- 12.39 km²land, in a 12.57 km² circle
- Satellite image
- Sep 9, 2026
Gunan's tree count comes to 196,698 trees across 12.39 km² of land — already at or above the 40% tree-cover level considered healthy for this area. Air quality currently reads AQI 151 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Tree cover detail
Healthy tree cover
63.5% tree cover against a 40% healthy-neighborhood target, across 12.39 km² of land.
Trees in this area
196,698
Target trees
196,698
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 151Unhealthy
Observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
35.4
PM10
35.6
NO₂
3.6
O₃
169.0
SO₂
12.9
CO
586.0
Frequently asked
Questions about Gunan
What is the tree count in Gunan?
Gunan has an estimated 196,698 trees across the 12.39 km² of land measured — 63.5% tree cover, already past the 40% tree-cover target set for this area.
How many more trees does Gunan need?
Gunan has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Gunan right now?
The latest reading for Gunan shows an AQI of 151 (Unhealthy), observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Everyone should limit long outdoor exertion; sensitive groups more so.
How is Gunan'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 Qijiang 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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