Worst air pollution Tolosa, today and tomorrow
Today (16 July): Air quality in Tolosa is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 33.2/100).
Tomorrow (17 July 2026): Air quality in Tolosa is fair. NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 27.6/100). 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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In Tolosa, light industry in some towns and local traffic play the biggest role locally. Air quality is generally very good thanks to frequent rain and constant Atlantic wind. Coastal fog can occasionally trap smoke and traffic fumes close to the ground overnight.
Today - 16 July | Pollution peaks at 17:00
AQI:
Fair
33.2/100
PM2.5 (fine particles):
Good
9.3/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Fair
23.4/100
O3 (ozone):
Fair
33.2/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Good
7.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Fair
27.6/100
PM2.5 (fine particles):
Good
6.0/100
PM10 (coarse particles):
Good
2.3/100
NO2 (nitrogen dioxide):
Good
13.7/100
O3 (ozone):
Fair
27.6/100
SO2 (sulfur dioxide):
Good
1.6/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.8/100
PM1 (ultrafine particles):
Good
4.3/100
Pollen forecast in Tolosa
View pollen forecastFrequently Asked Questions
Is air quality bad in Tolosa right now?
On 16 July 2026, overall air quality in Tolosa is fair. AQI is the main air quality indicator at 33.2/100. Pollution peaks around 5:00 PM (O3: 33.2/100).
Will air quality be worse tomorrow in Tolosa?
On 17 July 2026, air quality conditions in Tolosa will be similar to today, with AQI forecast at fair at 27.6/100. Pollution peaks around 2:00 PM (O3: 27.6/100).
When is air pollution at its worst in Tolosa?
What is the yearly air quality pattern like in Tolosa? Winter mornings are frequently the year's most polluted, as fog and calm conditions trap traffic fumes and smoke from wood stoves close to the ground. Spring generally sees a gradual recovery, driven by more frequent rain showers and stronger breezes that prevent pollutants from settling. The long, hot days of summer favour ozone build-up, which can spike on the stillest, sunniest afternoons. Conditions tend to stabilise in autumn, as cooling weather and increasing rain reduce the ozone spikes typical of summer. The Atlantic north's frequent rain and strong onshore winds generally keep year-round levels lower than in the drier interior and south.
Are air quality levels in Tolosa 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