Tanghe
Measured across a 2 km radius around Tanghe County, Nanyang, Henan, China (12.57 km²)
- Tree cover
- 20.3%
- Air quality
- 76Moderate
- Trees in this area
- 63.1K
- More trees needed
- 30.2K
- Area analyzed
- 12.44 km²land, in a 12.57 km² circle
- Satellite image
- Aug 9, 2026
Tanghe's tree count comes to 63,137 trees across 12.44 km² of land — 10 points below the 30% tree-cover level considered healthy for this area, meaning roughly 30,169 more trees would close the gap. Air quality currently reads AQI 76 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Below target
20.3% tree cover against a 30% healthy-neighborhood target, across 12.44 km² of land.
Trees in this area
63,137
Target trees
93,306
More trees needed
30,169
CO₂ if planted / yr
663.7 t
Air quality detail
AQI 76Moderate
Observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
24.0
PM10
24.4
NO₂
5.6
O₃
103.0
SO₂
0.4
CO
382.0
Frequently asked
Questions about Tanghe
What is the tree count in Tanghe?
Tanghe has an estimated 63,137 trees across the 12.44 km² of land measured — 20.3% tree cover, 10 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Tanghe need?
Tanghe needs roughly 30,169 more trees to close a 10-point shortfall against its 30% tree-cover target — about 663.7 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Tanghe right now?
The latest reading for Tanghe shows an AQI of 76 (Moderate), observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Unusually sensitive people should consider limiting long outdoor exertion.
How is Tanghe'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 Tanghe County; 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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