Belém
Measured across a 2 km radius around Cidade Velha, Belém - PA, Brazil (12.57 km²)
- Tree cover
- 9.0%
- Air quality
- 26Good
- Trees in this area
- 12.8K
- More trees needed
- 30.0K
- Area analyzed
- 5.71 km²land, in a 12.57 km² circle
- Satellite image
- Sep 16, 2026
Belém's tree count comes to 12,837 trees across 5.71 km² of land — 21 points below the 30% tree-cover level considered healthy for this area, meaning roughly 29,952 more trees would close the gap. Air quality currently reads AQI 26 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Critically low
9.0% tree cover against a 30% healthy-neighborhood target, across 5.71 km² of land.
Trees in this area
12,837
Target trees
42,789
More trees needed
29,952
CO₂ if planted / yr
658.9 t
Air quality detail
AQI 26Good
Observed Sep 27, 01:00 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
8.0
NO₂
3.6
O₃
31.0
SO₂
1.2
CO
126.0
Frequently asked
Questions about Belém
What is the tree count in Belém?
Belém has an estimated 12,837 trees across the 5.71 km² of land measured — 9.0% tree cover, 21 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Belém need?
Belém needs roughly 29,952 more trees to close a 21-point shortfall against its 30% tree-cover target — about 658.9 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Belém right now?
The latest reading for Belém shows an AQI of 26 (Good), observed Sep 27, 01:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Belém'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 Cidade Velha; 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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