Worst air pollution Concepción, today and tomorrow
Today (9 August): Air quality in Concepción is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 PM (O3: 17.8/100).
Tomorrow (10 August 2026): Air quality in Concepción is good. All pollutants stay as today. Pollution peaks around 11:00 AM (O3: 18.2/100). 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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Concepción's air quality reflects the Chilean Biobío River valley's partial topographic enclosure between the Nahuelbuta and Cordillera ranges, with vehicle traffic on surrounding roads and the steel, paper, and petrochemical corridor contributing elevated industrial PM2.5. The Pacific coastal proximity provides limited maritime ventilation from the west, while the winter Andean anticyclone creates concentration episodes and the industrial corridor's scale maintains Concepción among Chile's more distinctively industrial coastal metropolitan environments throughout the year.
Today - 9 August | Pollution peaks at 21:00
AQI:
Good
17.8/100
PM2.5 (fine particles):
Good
6.6/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
17.8/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.2/100
PM1 (ultrafine particles):
Good
0.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 11:00
AQI:
Good
18.2/100
PM2.5 (fine particles):
Good
14.8/100
PM10 (coarse particles):
Good
6.7/100
NO2 (nitrogen dioxide):
Good
0.0/100
O3 (ozone):
Good
18.2/100
SO2 (sulfur dioxide):
Good
0.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.2/100
PM1 (ultrafine particles):
Good
1.8/100
Frequently Asked Questions
Is air quality bad in Concepción right now?
On 9 August 2026, overall air quality in Concepción is good. AQI is the main air quality indicator at 17.8/100. Pollution peaks around 9:00 PM (O3: 17.8/100).
Will air quality be worse tomorrow in Concepción?
On 10 August 2026, air quality conditions in Concepción will be similar to today, with AQI forecast at good at 18.2/100. Pollution peaks around 11:00 AM (O3: 18.2/100).
When is air pollution at its worst in Concepción?
The biggest local contributors to pollution in Concepción are traffic emissions as well as heavy industrial and chemical processing, particularly once windblown dust events occur. These wind events can carry dust in from the surrounding arid landscape. Maritime airflow normally ventilates the area well, though calmer spells let levels rise.
Are air quality levels in Concepción 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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