City report · United Kingdom · England
Oldham
Measured across a 1.2 mi (2 km) radius around Oldham, UK (4.9 sq mi)
- Tree cover
- 36.4%
- Air quality
- 25Good
- Trees in this area
- 114K
- More trees needed
- 0
- Area analyzed
- 4.8 sq miland, in a 4.9 sq mi circle
- Satellite image
- Sep 22, 2026
Oldham's tree count comes to 114,240 trees across 4.8 sq mi (12.56 km²) of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 25 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
36.4% tree cover against a 30% healthy-neighborhood target, across 4.8 sq mi (12.56 km²) of land.
Trees in this area
114,240
Target trees
114,240
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 25Good
Observed Sep 27, 05:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.0
PM10
9.1
NO₂
7.2
O₃
52.0
SO₂
0.6
CO
179.0
Frequently asked
Questions about Oldham
What is the tree count in Oldham?
Oldham has an estimated 114,240 trees across the 4.8 sq mi (12.56 km²) of land measured — 36.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Oldham need?
Oldham has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Oldham right now?
The latest reading for Oldham shows an AQI of 25 (Good), observed Sep 27, 05:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Oldham'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 Oldham; 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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