City report · North Korea · South Pyongan
Chaeryŏng-ni
Measured across a 2 km radius around Waudo, Nampo, Korea (12.57 km²)
- Tree cover
- 46.7%
- Air quality
- 66Moderate
- Trees in this area
- 87.4K
- More trees needed
- 0
- Area analyzed
- 7.49 km²land, in a 12.57 km² circle
- Satellite image
- Sep 26, 2026
Chaeryŏng-ni's tree count comes to 87,441 trees across 7.49 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 66 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Healthy tree cover
46.7% tree cover against a 30% healthy-neighborhood target, across 7.49 km² of land.
Trees in this area
87,441
Target trees
87,441
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 66Moderate
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
15.8
PM10
24.3
NO₂
1.1
O₃
117.0
SO₂
6.3
CO
158.0
Frequently asked
Questions about Chaeryŏng-ni
What is the tree count in Chaeryŏng-ni?
Chaeryŏng-ni has an estimated 87,441 trees across the 7.49 km² of land measured — 46.7% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Chaeryŏng-ni need?
Chaeryŏng-ni has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Chaeryŏng-ni right now?
The latest reading for Chaeryŏng-ni shows an AQI of 66 (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 Chaeryŏng-ni'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 Waudo; 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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