Worst air pollution Antofagasta, today and tomorrow
Today (16 July): Air quality in Antofagasta is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (O3: 15.7/100).
Tomorrow (17 July 2026): Air quality in Antofagasta is good. All pollutants stay as today. Pollution peaks around 9:00 PM (O3: 16.7/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Antofagasta's air quality reflects the Chilean Atacama Desert coastal position at 109 metres on the Pacific coast, with vehicle traffic on surrounding roads and the copper mining port operations — Antofagasta being Chile's copper export capital — generating elevated mineral dust PM10 alongside vehicle sources. Consistent Pacific Humboldt Current coastal breezes provide reliable maritime ventilation, while the extraordinary copper mining dust and the Pacific coastal position create Antofagasta's distinctive industrial-coastal air quality environment throughout the year.
Today - 16 July | Pollution peaks at 23:00
AQI:
Good
15.7/100
PM2.5 (fine particles):
Good
4.9/100
PM10 (coarse particles):
Good
2.2/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
15.7/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
0.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 21:00
AQI:
Good
16.7/100
PM2.5 (fine particles):
Good
5.4/100
PM10 (coarse particles):
Good
2.4/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
16.7/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.1/100
Frequently Asked Questions
Is air quality bad in Antofagasta right now?
On 16 July 2026, overall air quality in Antofagasta is good. AQI is the main air quality indicator at 15.7/100. Pollution peaks around 11:00 PM (O3: 15.7/100).
Will air quality be worse tomorrow in Antofagasta?
On 17 July 2026, air quality conditions in Antofagasta will be similar to today, with AQI forecast at good at 16.7/100. Pollution peaks around 9:00 PM (O3: 16.7/100).
When is air pollution at its worst in Antofagasta?
In Antofagasta, vehicle traffic, mining operations, together with fishing fleet activity are the main local sources, with conditions worsening when dry spells bring strong winds. Strong seasonal winds can lift dust from the surrounding dry terrain and push particulate levels sharply higher. Onshore breezes usually help clear the air, but pollution can build up when winds are light.
Are air quality levels in Antofagasta based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app