Longyan
Measured across a 2 km radius around Xinluo District, Longyan, Fujian, China (12.57 km²)
- Tree cover
- 29.0%
- Air quality
- 118Unhealthy for sensitive groups
- Trees in this area
- 91.1K
- More trees needed
- 18.9K
- Area analyzed
- 12.57 km²
- Satellite image
- Aug 8, 2026
Longyan's tree count comes to 91,106 trees across 12.57 km² — 6 points below the 35% tree-cover level considered healthy for this area, meaning roughly 18,850 more trees would close the gap. Air quality currently reads AQI 118 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Tree cover detail
Below target
29.0% tree cover against a 35% healthy-neighborhood target, across 12.57 km².
Trees in this area
91,106
Target trees
109,956
More trees needed
18,850
CO₂ if planted / yr
414.7 t
Air quality detail
AQI 118Unhealthy for sensitive groups
Observed Sep 27, 10:00 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
20.5
PM10
21.4
NO₂
1.7
O₃
149.0
SO₂
4.4
CO
252.0
Frequently asked
Questions about Longyan
What is the tree count in Longyan?
Longyan has an estimated 91,106 trees across the 12.57 km² measured — 29.0% tree cover, 6 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Longyan need?
Longyan needs roughly 18,850 more trees to close a 6-point shortfall against its 35% tree-cover target — about 414.7 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Longyan right now?
The latest reading for Longyan shows an AQI of 118 (Unhealthy for sensitive groups), observed Sep 27, 10:00 local time via Open-Meteo / CAMS, US EPA index. Sensitive groups should limit long or intense outdoor activity.
How is Longyan'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 Xinluo 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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