
City report · India · West Bengal
Kolkata
Measured across a 2 km radius around Lebutala, Bowbazar, Kolkata, West Bengal, India (12.57 km²)
- Tree cover
- 14.0%
- Air quality
- 66Moderate
- Trees in this area
- 43.9K
- More trees needed
- 50.2K
- Area analyzed
- 12.56 km²land, in a 12.57 km² circle
- Satellite image
- Jun 17, 2026
Kolkata's tree count comes to 43,938 trees across 12.56 km² of land — 16 points below the 30% tree-cover level considered healthy for this area, meaning roughly 50,215 more trees would close the gap. Air quality currently reads AQI 66 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Critically low
14.0% tree cover against a 30% healthy-neighborhood target, across 12.56 km² of land.
Trees in this area
43,938
Target trees
94,153
More trees needed
50,215
CO₂ if planted / yr
1,105 t
Air quality detail
AQI 66Moderate
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
19.0
PM10
22.6
NO₂
8.9
O₃
55.0
SO₂
6.2
CO
337.0
Frequently asked
Questions about Kolkata
What is the tree count in Kolkata?
Kolkata has an estimated 43,938 trees across the 12.56 km² of land measured — 14.0% tree cover, 16 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Kolkata need?
Kolkata needs roughly 50,215 more trees to close a 16-point shortfall against its 30% tree-cover target — about 1,105 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Kolkata right now?
The latest reading for Kolkata shows an AQI of 66 (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 Kolkata'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 Lebutala; 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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