Nanyang
Measured across a 2 km radius around Wancheng District, Nanyang, Henan, China (12.57 km²)
- Tree cover
- 15.8%
- Air quality
- 111Unhealthy for sensitive groups
- Trees in this area
- 48.9K
- More trees needed
- 59.4K
- Area analyzed
- 12.38 km²land, in a 12.57 km² circle
- Satellite image
- Sep 3, 2026
Nanyang's tree count comes to 48,893 trees across 12.38 km² of land — 19 points below the 35% tree-cover level considered healthy for this area, meaning roughly 59,414 more trees would close the gap. Air quality currently reads AQI 111 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Tree cover detail
Critically low
15.8% tree cover against a 35% healthy-neighborhood target, across 12.38 km² of land.
Trees in this area
48,893
Target trees
108,307
More trees needed
59,414
CO₂ if planted / yr
1,307 t
Air quality detail
AQI 111Unhealthy 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
39.5
PM10
40.9
NO₂
16.0
O₃
77.0
SO₂
1.3
CO
771.0
Frequently asked
Questions about Nanyang
What is the tree count in Nanyang?
Nanyang has an estimated 48,893 trees across the 12.38 km² of land measured — 15.8% tree cover, 19 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Nanyang need?
Nanyang needs roughly 59,414 more trees to close a 19-point shortfall against its 35% tree-cover target — about 1,307 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Nanyang right now?
The latest reading for Nanyang shows an AQI of 111 (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 Nanyang'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 Wancheng 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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