City report · Brazil · São Paulo
Assis
Measured across a 2 km radius around Centro, Assis - SP, Brazil (12.57 km²)
- Tree cover
- 21.9%
- Air quality
- 155Unhealthy
- Trees in this area
- 68.8K
- More trees needed
- 56.9K
- Area analyzed
- 12.57 km²
- Satellite image
- Sep 18, 2026
Assis's tree count comes to 68,801 trees across 12.57 km² — 18 points below the 40% tree-cover level considered healthy for this area, meaning roughly 56,863 more trees would close the gap. Air quality currently reads AQI 155 (Unhealthy): Everyone should limit long outdoor exertion; sensitive groups more so.
Tree cover detail
Critically low
21.9% tree cover against a 40% healthy-neighborhood target, across 12.57 km².
Trees in this area
68,801
Target trees
125,664
More trees needed
56,863
CO₂ if planted / yr
1,251 t
Air quality detail
AQI 155Unhealthy
Observed Sep 27, 01:00 local time via Open-Meteo / CAMS, US EPA index. Values in µg/m³.
Health signal
Everyone should limit long outdoor exertion; sensitive groups more so.
PM2.5
62.9
PM10
63.8
NO₂
33.4
O₃
31.0
SO₂
4.3
CO
659.0
Frequently asked
Questions about Assis
What is the tree count in Assis?
Assis has an estimated 68,801 trees across the 12.57 km² measured — 21.9% tree cover, 18 percentage points short of the 40% tree-cover target set for this area.
How many more trees does Assis need?
Assis needs roughly 56,863 more trees to close a 18-point shortfall against its 40% tree-cover target — about 1,251 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Assis right now?
The latest reading for Assis shows an AQI of 155 (Unhealthy), observed Sep 27, 01:00 local time via Open-Meteo / CAMS, US EPA index. Everyone should limit long outdoor exertion; sensitive groups more so.
How is Assis'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 Centro; 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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