City report · India · Tamil Nadu
Chennai
Measured across a 2 km radius around Parle Town, Park Town, Chennai, Tamil Nadu 600003, India (12.57 km²)
- Tree cover
- 27.5%
- Air quality
- 65Moderate
- Trees in this area
- 84.3K
- More trees needed
- 7.7K
- Area analyzed
- 12.27 km²land, in a 12.57 km² circle
- Satellite image
- Sep 26, 2026
Chennai's tree count comes to 84,320 trees across 12.27 km² of land — 2 points below the 30% tree-cover level considered healthy for this area, meaning roughly 7,665 more trees would close the gap. Air quality currently reads AQI 65 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Below target
27.5% tree cover against a 30% healthy-neighborhood target, across 12.27 km² of land.
Trees in this area
84,320
Target trees
91,985
More trees needed
7,665
CO₂ if planted / yr
168.6 t
Air quality detail
AQI 65Moderate
Observed Sep 27, 05:30 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
18.9
PM10
23.8
NO₂
12.2
O₃
66.0
SO₂
10.9
CO
268.0
Frequently asked
Questions about Chennai
What is the tree count in Chennai?
Chennai has an estimated 84,320 trees across the 12.27 km² of land measured — 27.5% tree cover, 2 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Chennai need?
Chennai needs roughly 7,665 more trees to close a 2-point shortfall against its 30% tree-cover target — about 168.6 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Chennai right now?
The latest reading for Chennai shows an AQI of 65 (Moderate), observed Sep 27, 05:30 local time via Open-Meteo / CAMS, US EPA index. Unusually sensitive people should consider limiting long outdoor exertion.
How is Chennai'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 Parle Town; 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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