City report · United States
Lowell
Measured across a 2 km radius around Highlands, Lowell, MA, USA (12.57 km²)
- Tree cover
- 41.8%
- Air quality
- 31Good
- Trees in this area
- 130K
- More trees needed
- 0
- Area analysed
- 12.43 km²land, in a 12.57 km² circle
- Satellite image
- Sep 18, 2026
Lowell's tree count comes to 129,874 trees across 12.43 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 31 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
41.8% tree cover against a 30% healthy-neighbourhood target, across 12.43 km² of land.
Trees in this area
129,874
Target trees
129,874
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 31Good
Observed Sep 21, 23:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
7.0
PM10
7.6
NO₂
12.9
O₃
46.0
SO₂
0.9
CO
338.0
Frequently asked
Questions about Lowell
What is the tree count in Lowell?
Lowell has an estimated 129,874 trees across the 12.43 km² of land measured — 41.8% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Lowell need?
Lowell has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Lowell right now?
The latest reading for Lowell shows an AQI of 31 (Good), observed Sep 21, 23:00 local time via Open-Meteo / CAMS. Air quality is satisfactory for everyone.
How is Lowell'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 Highlands; the tree count is an estimate derived from that cover. Air-quality readings come from Open-Meteo / CAMS and may differ from street-level monitors.
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