City report · China · Chongqing
Bishan
Measured across a 2 km radius around Bishan District, Chongqing, China (12.57 km²)
- Tree cover
- 35.4%
- Air quality
- 122Unhealthy for sensitive groups
- Trees in this area
- 111K
- More trees needed
- 0
- Area analyzed
- 12.51 km²land, in a 12.57 km² circle
- Satellite image
- Sep 9, 2026
Bishan's tree count comes to 110,656 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 122 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Tree cover detail
Healthy tree cover
35.4% tree cover against a 35% healthy-neighborhood target, across 12.51 km² of land.
Trees in this area
110,656
Target trees
110,656
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 122Unhealthy for sensitive groups
Observed Sep 27, 12:00 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
43.9
PM10
44.1
NO₂
40.9
O₃
141.0
SO₂
21.9
CO
413.0
Frequently asked
Questions about Bishan
What is the tree count in Bishan?
Bishan has an estimated 110,656 trees across the 12.51 km² of land measured — 35.4% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Bishan need?
Bishan has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Bishan right now?
The latest reading for Bishan shows an AQI of 122 (Unhealthy for sensitive groups), observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Sensitive groups should limit long or intense outdoor activity.
How is Bishan'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 Bishan 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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