Nantong
Measured across a 2 km radius around Chongchuan District, Nantong, Jiangsu, China (12.57 km²)
- Tree cover
- 25.7%
- Air quality
- 40Good
- Trees in this area
- 77.3K
- More trees needed
- 12.9K
- Area analyzed
- 12.03 km²land, in a 12.57 km² circle
- Satellite image
- Aug 2, 2026
Nantong's tree count comes to 77,267 trees across 12.03 km² of land — 4 points below the 30% tree-cover level considered healthy for this area, meaning roughly 12,928 more trees would close the gap. Air quality currently reads AQI 40 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Below target
25.7% tree cover against a 30% healthy-neighborhood target, across 12.03 km² of land.
Trees in this area
77,267
Target trees
90,195
More trees needed
12,928
CO₂ if planted / yr
284.4 t
Air quality detail
AQI 40Good
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
9.1
PM10
9.1
NO₂
31.6
O₃
84.0
SO₂
9.2
CO
505.0
Frequently asked
Questions about Nantong
What is the tree count in Nantong?
Nantong has an estimated 77,267 trees across the 12.03 km² of land measured — 25.7% tree cover, 4 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Nantong need?
Nantong needs roughly 12,928 more trees to close a 4-point shortfall against its 30% tree-cover target — about 284.4 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Nantong right now?
The latest reading for Nantong shows an AQI of 40 (Good), observed Sep 27, 12:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Nantong'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 Chongchuan 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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