City report · China · Heilongjiang
Hailun
Measured across a 2 km radius around Hailun, Suihua, Heilongjiang, China (12.57 km²)
- Tree cover
- 53.4%
- Air quality
- 41Good
- Trees in this area
- 167K
- More trees needed
- 0
- Area analyzed
- 12.53 km²land, in a 12.57 km² circle
- Satellite image
- Sep 24, 2026
Hailun's tree count comes to 167,258 trees across 12.53 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 41 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
53.4% tree cover against a 30% healthy-neighborhood target, across 12.53 km² of land.
Trees in this area
167,258
Target trees
167,258
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 41Good
Observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.9
PM10
9.7
NO₂
3.8
O₃
86.0
SO₂
2.3
CO
180.0
Frequently asked
Questions about Hailun
What is the tree count in Hailun?
Hailun has an estimated 167,258 trees across the 12.53 km² of land measured — 53.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Hailun need?
Hailun has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Hailun right now?
The latest reading for Hailun shows an AQI of 41 (Good), observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Hailun'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 Hailun; 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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