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Airleaf
Aerial study of a dense urban district organized around a green corridor
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City report · Puerto Rico

Carolina

Measured across a 1.2 mi (2 km) radius around Carolina, Puerto Rico (4.9 sq mi)

Tree cover
44.0%
Air quality
21Good
Trees in this area
137K
More trees needed
0
Area analyzed
4.8 sq miland, in a 4.9 sq mi circle
Satellite image
Jul 20, 2026
Dark green marks tree cover detected inside the study radius.Sentinel-2 L2A (ESA Copernicus) via Earth Search, captured Jul 20, 2026

Carolina's tree count comes to 137,401 trees across 4.8 sq mi (12.49 km²) of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 21 (Good): Air quality is satisfactory for everyone.

Tree cover detail

Healthy tree cover

44.0% tree cover against a 30% healthy-neighborhood target, across 4.8 sq mi (12.49 km²) of land.

Target reached

Trees in this area

137,401

Target trees

137,401

More trees needed

0

CO₂ if planted / yr

0 kg

Air quality detail

AQI 21Good

Observed Sep 27, 23:00 local time via OpenAQ ground stations, US EPA index. Values in µg/m³.

Ground station · Cataño 40, 12.5 mi (20.1 km) away

Health signal

Air quality is satisfactory for everyone.

PM2.5

5.0

PM10

—

NO₂

—

O₃

—

SO₂

—

CO

—

Data: OpenAQ · AirNow

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

Questions about Carolina

What is the tree count in Carolina?

Carolina has an estimated 137,401 trees across the 4.8 sq mi (12.49 km²) of land measured — 44.0% tree cover, already past the 30% tree-cover target set for this area.

How many more trees does Carolina need?

Carolina has already reached its tree-cover target, so no additional trees are needed to close the gap.

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

The latest reading for Carolina shows an AQI of 21 (Good), measured Sep 27, 23:00 local time by the Cataño 40 ground monitoring station, 12.5 mi (20.1 km) away, via OpenAQ. Air quality is satisfactory for everyone.

How is Carolina'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 1.2 mi (2 km) radius around Carolina; the tree count is an estimate derived from that cover. Air quality is measured by ground monitoring stations near Carolina, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate.

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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 is measured by ground monitoring stations near Carolina, via OpenAQ; the 7-day trend is the Open-Meteo / CAMS model's estimate.