Longueuil
Measured across a 2 km radius around Le Vieux-Longueuil, Longueuil, QC, Canada (12.57 km²)
- Tree cover
- 50.9%
- Air quality
- 26Good
- Trees in this area
- 160K
- More trees needed
- 0
- Area analyzed
- 12.57 km²
- Satellite image
- Sep 18, 2026
Longueuil's tree count comes to 159,907 trees across 12.57 km² — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 26 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
50.9% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
159,907
Target trees
159,907
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 26Good
Observed Sep 27, 00:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
6.2
PM10
6.3
NO₂
8.5
O₃
55.0
SO₂
2.9
CO
154.0
Frequently asked
Questions about Longueuil
What is the tree count in Longueuil?
Longueuil has an estimated 159,907 trees across the 12.57 km² measured — 50.9% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Longueuil need?
Longueuil has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Longueuil right now?
The latest reading for Longueuil shows an AQI of 26 (Good), observed Sep 27, 00:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Longueuil'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 Le Vieux-Longueuil; 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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