
Jianchang
Measured across a 2 km radius around Nancheng County, Fuzhou, Jiangxi, China (12.57 km²)
- Tree cover
- 20.4%
- Air quality
- 123Unhealthy for sensitive groups
- Trees in this area
- 56.3K
- More trees needed
- 40.3K
- Area analyzed
- 11.04 km²land, in a 12.57 km² circle
- Satellite image
- Sep 24, 2026
Jianchang's tree count comes to 56,270 trees across 11.04 km² of land — 15 points below the 35% tree-cover level considered healthy for this area, meaning roughly 40,271 more trees would close the gap. Air quality currently reads AQI 123 (Unhealthy for sensitive groups): Sensitive groups should limit long or intense outdoor activity.
Tree cover detail
Critically low
20.4% tree cover against a 35% healthy-neighborhood target, across 11.04 km² of land.
Trees in this area
56,270
Target trees
96,541
More trees needed
40,271
CO₂ if planted / yr
886.0 t
Air quality detail
AQI 123Unhealthy 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
17.9
PM10
18.5
NO₂
0.5
O₃
152.0
SO₂
3.8
CO
273.0
Frequently asked
Questions about Jianchang
What is the tree count in Jianchang?
Jianchang has an estimated 56,270 trees across the 11.04 km² of land measured — 20.4% tree cover, 15 percentage points short of the 35% tree-cover target set for this area.
How many more trees does Jianchang need?
Jianchang needs roughly 40,271 more trees to close a 15-point shortfall against its 35% tree-cover target — about 886.0 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Jianchang right now?
The latest reading for Jianchang shows an AQI of 123 (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 Jianchang'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 Nancheng 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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