Zona Universitaria, Barcelona Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Zona Universitaria is poor. AQI and NO2 are poor; PM2.5 is moderate; PM1 is fair; PM10, O3, SO2, CO, and HCHO are good. Pollution peaks around 8:00 AM (NO2: 65.7/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Zona Universitaria is poor. PM10 increases to fair; all other pollutants stay as today. Pollution peaks around 10:00 AM (NO2: 64.1/100).
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Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Poor | 65.7/100 |
| PM2.5 (fine particles) | Moderate | 40.2/100 |
| PM10 (coarse particles) | Good | 17.1/100 |
| NO2 (nitrogen dioxide) | Poor | 65.7/100 |
| O3 (ozone) | Good | 19.0/100 |
| SO2 (sulfur dioxide) | Good | 2.8/100 |
| CO (carbon monoxide) | Good | 0.7/100 |
| HCHO (formaldehyde) | Good | 4.3/100 |
| PM1 (ultrafine particles) | Fair | 21.3/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Poor | 64.1/100 |
| PM2.5 (fine particles) | Moderate | 43.6/100 |
| PM10 (coarse particles) | Fair | 22.3/100 |
| NO2 (nitrogen dioxide) | Poor | 64.1/100 |
| O3 (ozone) | Good | 14.6/100 |
| SO2 (sulfur dioxide) | Good | 2.8/100 |
| CO (carbon monoxide) | Good | 0.7/100 |
| HCHO (formaldehyde) | Good | 5.2/100 |
| PM1 (ultrafine particles) | Fair | 27.6/100 |
Local Environmental Conditions
This part of Barcelona is largely built up, so vehicle exhaust and urban activity dominate the local air pollution sources. Sea breezes along the coast usually help ventilate the area. Port and shipping activity adds to local emissions. Parks and street trees provide a modest buffer against traffic pollution. On some days, pollution drifting in from farther away outweighs local sources.
Hot afternoons from June to September, averaging 26°C in the warmest month, are when ozone is most likely to build up. In January, temperatures near 8°C let smoke and particles from home heating and traffic build up, especially on cold, still mornings. Wildfire season runs roughly from July to August, when smoke from fires, near or far, can bring hazy days and very poor air quality.
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Frequently Asked Questions About Air Quality in Catalonia
Is air quality bad in Zona Universitaria right now?
On 10 October 2026, overall air quality in Zona Universitaria is poor. AQI is the main air quality indicator at 65.7/100. Pollution peaks around 8:00 AM (NO2: 65.7/100).
Will air quality be worse tomorrow in Zona Universitaria?
On 11 October 2026, air quality conditions in Zona Universitaria will be similar to today, with AQI forecast at poor at 64.1/100. Pollution peaks around 10:00 AM (NO2: 64.1/100).
When is air pollution at its worst in Zona Universitaria?
Hot afternoons from June to September, averaging 26°C in the warmest month, are when ozone is most likely to build up. In January, temperatures near 8°C let smoke and particles from home heating and traffic build up, especially on cold, still mornings. Wildfire season runs roughly from July to August, when smoke from fires, near or far, can bring hazy days and very poor air quality.
Are air quality levels in Zona Universitaria 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.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |