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Airleaf
Aerial study of a dense urban district organized around a green corridor
All Sri Lanka reports

City report · Sri Lanka

Kalmunai

Measured across a 2 km radius around Kalmunai Kudy, Kalmunai 32300, Sri Lanka (12.57 km²)

Tree cover
24.6%
Air quality
48Good
Trees in this area
51.2K
More trees needed
11.2K
Area analyzed
8.33 km²land, in a 12.57 km² circle
Satellite image
Sep 18, 2026
Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Sep 18, 2026

Kalmunai's tree count comes to 51,239 trees across 8.33 km² of land — 5 points below the 30% tree-cover level considered healthy for this area, meaning roughly 11,248 more trees would close the gap. Air quality currently reads AQI 48 (Good): Air quality is satisfactory for everyone.

Tree cover detail

Below target

24.6% tree cover against a 30% healthy-neighborhood target, across 8.33 km² of land.

5 points below target

Trees in this area

51,239

Target trees

62,487

More trees needed

11,248

CO₂ if planted / yr

247.5 t

Air quality detail

AQI 48Good

Observed Sep 28, 07:30 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.

Model estimate · no ground station nearby

Health signal

Air quality is satisfactory for everyone.

PM2.5

11.4

PM10

15.4

NO₂

3.1

O₃

78.0

SO₂

4.0

CO

133.0

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Kalmunai tree cover and air quality — measured by Airleaf
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Frequently asked

Questions about Kalmunai

What is the tree count in Kalmunai?

Kalmunai has an estimated 51,239 trees across the 8.33 km² of land measured — 24.6% tree cover, 5 percentage points short of the 30% tree-cover target set for this area.

How many more trees does Kalmunai need?

Kalmunai needs roughly 11,248 more trees to close a 5-point shortfall against its 30% tree-cover target — about 247.5 t of extra CO₂ absorbed per year once grown.

What is the air quality (AQI) in Kalmunai right now?

The latest reading for Kalmunai shows an AQI of 48 (Good), observed Sep 28, 07:30 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.

How is Kalmunai'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 Kalmunai Kudy; 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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Methodology. Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search imagery at 10 m detail for the stated radius; 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.