Worst air pollution Can Baró - Barcelona, today and tomorrow

On 9 August 2026, overall air quality in Can Baró is fair. AQI is the main air quality indicator at 35.9/100. Pollution peaks around 3:00 PM (O3: 35.9/100).

On 10 August 2026, air quality conditions in Can Baró will be similar to today, with AQI forecast at fair at 35.7/100. Pollution peaks around 2:00 PM (O3: 35.7/100).

What is the yearly air quality pattern like in Can Baró? Air quality often reaches its yearly low in the depths of winter, when still, cold air holds local emissions from traffic and heating close to ground level. March through May tends to see steady improvement, with more unsettled weather patterns helping disperse traffic and heating pollution. The long, hot days of summer favour ozone build-up, which can spike on the stillest, sunniest afternoons. Autumn is typically a recovery period, with increasing rainfall and cooler air gradually reducing both ozone and traffic-related pollution. Being on the Mediterranean coast helps with dispersal most of the year, though summer tourism and North African dust episodes remain a factor.

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.

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.