Zigong
Measured across a 2 km radius around Ziliujing District, Zigong, Sichuan, China (12.57 km²)
- Tree cover
- 51.8%
- Air quality
- 110Unhealthy for sensitive groups
- Trees in this area
- 157K
- More trees needed
- 0
- Area analyzed
- 12.09 km²land, in a 12.57 km² circle
- Satellite image
- Sep 2, 2026
Zigong's tree count comes to 156,551 trees across 12.09 km² of land — already at or above the 35% tree-cover level considered healthy for this area. Air quality currently reads AQI 110 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Tree cover detail
Healthy tree cover
51.8% tree cover against a 35% healthy-neighborhood target, across 12.09 km² of land.
Trees in this area
156,551
Target trees
156,551
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 110Unhealthy 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
39.1
PM10
39.2
NO₂
10.4
O₃
93.0
SO₂
4.1
CO
402.0
Frequently asked
Questions about Zigong
What is the tree count in Zigong?
Zigong has an estimated 156,551 trees across the 12.09 km² of land measured — 51.8% tree cover, already past the 35% tree-cover target set for this area.
How many more trees does Zigong need?
Zigong has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Zigong right now?
The latest reading for Zigong shows an AQI of 110 (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 Zigong'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 Ziliujing 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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