City report · Chile · Antofagasta
Calama
Measured across a 2 km radius around Calama, Antofagasta, Chile (12.57 km²)
- Tree cover
- 2.4%
- Air quality
- 36Good
- Trees in this area
- 7.5K
- More trees needed
- 86.7K
- Area analyzed
- 12.57 km²
- Satellite image
- Sep 24, 2026
Calama's tree count comes to 7,540 trees across 12.57 km² — 28 points below the 30% tree-cover level considered healthy for this area, meaning roughly 86,708 more trees would close the gap. Air quality currently reads AQI 36 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Critically low
2.4% tree cover against a 30% healthy-neighborhood target, across 12.57 km².
Trees in this area
7,540
Target trees
94,248
More trees needed
86,708
CO₂ if planted / yr
1,908 t
Air quality detail
AQI 36Good
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
8.7
PM10
34.8
NO₂
2.6
O₃
55.0
SO₂
3.1
CO
101.0
Frequently asked
Questions about Calama
What is the tree count in Calama?
Calama has an estimated 7,540 trees across the 12.57 km² measured — 2.4% tree cover, 28 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Calama need?
Calama needs roughly 86,708 more trees to close a 28-point shortfall against its 30% tree-cover target — about 1,908 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Calama right now?
The latest reading for Calama shows an AQI of 36 (Good), observed Sep 27, 01:00 local time via Open-Meteo / CAMS, US EPA index. Air quality is satisfactory for everyone.
How is Calama'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 Calama; 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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