Worst air pollution Arica, today and tomorrow
Today (16 July): Air quality in Arica is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 17.4/100).
Tomorrow (17 July 2026): Air quality in Arica is good. All pollutants stay as today. Pollution peaks around 11:00 PM (O3: 17.7/100). 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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Arica's air quality reflects the extreme northern Chilean Atacama Desert coastal position at 56 metres on the Pacific, with vehicle traffic on surrounding roads and the port, commerce, and government corridor contributing local sources. Consistent Pacific Humboldt Current maritime breezes provide reliable ventilation, while windblown Atacama Desert and Peruvian altiplano dust contributes elevated PM10 during wind events and Arica generally maintains moderate Chilean Atacama coastal border city readings throughout most of the year.
Today - 16 July | Pollution peaks at 17:00
AQI:
Good
17.4/100
PM2.5 (fine particles):
Good
8.2/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
17.4/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
1.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Good
17.7/100
PM2.5 (fine particles):
Good
7.9/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Good
17.7/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
0.4/100
PM1 (ultrafine particles):
Good
2.3/100
Frequently Asked Questions
Is air quality bad in Arica right now?
On 16 July 2026, overall air quality in Arica is good. AQI is the main air quality indicator at 17.4/100. Pollution peaks around 5:00 PM (O3: 17.4/100).
Will air quality be worse tomorrow in Arica?
On 17 July 2026, air quality conditions in Arica will be similar to today, with AQI forecast at good at 17.7/100. Pollution peaks around 11:00 PM (O3: 17.7/100).
When is air pollution at its worst in Arica?
Arica usually sees its poorest air quality when traffic on the surrounding roads coincides with periods when dry spells bring strong winds. Dust carried on these winds adds substantially to particulate levels. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Arica 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