Worst air pollution Reus, today and tomorrow
Today (9 August): Air quality in Reus is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 32.6/100).
Tomorrow (10 August 2026): Air quality in Reus is fair. All pollutants stay as today. Pollution peaks around 2:00 PM (O3: 36.1/100). 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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Reus' air quality reflects its position in the Tarragona metropolitan area, with vehicle traffic on the AP-7 and the surrounding Tarragona petrochemical complex contributing industrial background emissions alongside local vehicle sources. The Mediterranean sea breezes provide afternoon ventilation, while the Tarragona industrial corridor represents the dominant regional emission source affecting the broader Reus metropolitan air quality background throughout the year.
Today - 9 August | Pollution peaks at 13:00
AQI:
Fair
32.6/100
PM2.5 (fine particles):
Good
9.8/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Fair
28.1/100
O3 (ozone):
Fair
32.6/100
SO2 (sulfur dioxide):
Good
9.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
11.4/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 14:00
AQI:
Fair
36.1/100
PM2.5 (fine particles):
Good
11.2/100
PM10 (coarse particles):
Good
3.4/100
NO2 (nitrogen dioxide):
Fair
22.4/100
O3 (ozone):
Fair
36.1/100
SO2 (sulfur dioxide):
Good
7.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
12.4/100
Pollen forecast in Reus
View pollen forecastFrequently Asked Questions
Is air quality bad in Reus right now?
On 9 August 2026, overall air quality in Reus is fair. AQI is the main air quality indicator at 32.6/100. Pollution peaks around 1:00 PM (O3: 32.6/100).
Will air quality be worse tomorrow in Reus?
On 10 August 2026, air quality conditions in Reus will be similar to today, with AQI forecast at fair at 36.1/100. Pollution peaks around 2:00 PM (O3: 36.1/100).
When is air pollution at its worst in Reus?
How does air quality change throughout the year in Reus? 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. By spring, air quality usually starts trending upward as the calm winter inversions give way to more unsettled, breezier weather. The heat of summer drives up ozone formation, and dry conditions occasionally bring smoke from regional wildfires into the mix. Air quality usually improves through autumn, as returning rains and cooling temperatures wash out summer's ozone and dust build-up. This Mediterranean location benefits from regular sea breezes, though summer's higher traffic volumes and occasional Saharan dust events can offset that.
Are air quality levels in Reus 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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