
- Tree cover
- 61.7%
- Air quality
- 60Moderate
- Trees in this area
- 194K
- More trees needed
- 0
- Area analyzed
- 12.57 km²
- Satellite image
- Sep 6, 2026
Nantou's tree count comes to 193,836 trees across 12.57 km² — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 60 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Healthy tree cover
61.7% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
193,836
Target trees
193,836
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 60Moderate
Observed Sep 28, 11:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Model estimate · no ground station nearby
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
16.6
PM10
18.9
NO₂
11.4
O₃
118.0
SO₂
32.0
CO
172.0
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Frequently asked
Questions about Nantou
What is the tree count in Nantou?
Nantou has an estimated 193,836 trees across the 12.57 km² measured — 61.7% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Nantou need?
Nantou has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Nantou right now?
The latest reading for Nantou shows an AQI of 60 (Moderate), observed Sep 28, 11:00 local time via Open-Meteo / CAMS, US EPA index. Unusually sensitive people should consider limiting long outdoor exertion.
How is Nantou'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 Nantou; the tree count is an estimate derived from that cover. Air quality comes from ground monitoring stations via OpenAQ where one reports nearby, and otherwise, as here, from the Open-Meteo / CAMS model, which may differ from street-level monitors.
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