Worst air pollution Ovalle, today and tomorrow
Today (16 July): Air quality in Ovalle is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 13.2/100).
Tomorrow (17 July 2026): Air quality in Ovalle is good. All pollutants stay as today. Pollution peaks around 12:00 AM (O3: 12.9/100). 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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Ovalle's air quality reflects the Chilean Coquimbo Region's Limarí River valley position at 300 metres in the Norte Chico semi-arid zone, with vehicle traffic on surrounding roads and the table grape, wine, and agricultural corridor contributing local sources. Consistent Pacific Humboldt Current maritime influence provides background ventilation, while the valley's partial enclosure creates modest concentration under winter inversions and Ovalle generally maintains moderate Chilean Norte Chico agricultural valley readings throughout most of the year.
Today - 16 July | Pollution peaks at 11:00
AQI:
Good
13.2/100
PM2.5 (fine particles):
Good
7.4/100
PM10 (coarse particles):
Good
3.4/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Good
13.2/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
1.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 00:00
AQI:
Good
12.9/100
PM2.5 (fine particles):
Good
10.7/100
PM10 (coarse particles):
Good
5.0/100
NO2 (nitrogen dioxide):
Good
0.3/100
O3 (ozone):
Good
12.9/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.5/100
PM1 (ultrafine particles):
Good
2.0/100
Frequently Asked Questions
Is air quality bad in Ovalle right now?
On 16 July 2026, overall air quality in Ovalle is good. AQI is the main air quality indicator at 13.2/100. Pollution peaks around 11:00 AM (O3: 13.2/100).
Will air quality be worse tomorrow in Ovalle?
On 17 July 2026, air quality conditions in Ovalle will be similar to today, with AQI forecast at good at 12.9/100. Pollution peaks around 12:00 AM (O3: 12.9/100).
When is air pollution at its worst in Ovalle?
In Ovalle, vehicle traffic as well as agricultural activity are the main local sources, with conditions worsening when the surrounding valley traps air close to the ground. The bowl-like terrain here limits how quickly pollutants can escape. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Ovalle 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