Worst air pollution Parte Vieja - Donostia, today and tomorrow
Today (9 August): Air quality in Parte Vieja is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 34.6/100).
Tomorrow (10 August 2026): Air quality in Parte Vieja is fair. All pollutants stay as today. Pollution peaks around 5:00 PM (O3: 31.1/100). Airmine updates local air quality forecasts four times daily.
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In Parte Vieja, local traffic and damp-weather heating smoke in winter are the main local influences on air quality. Levels stay low most of the year, with brief dips during still, foggy spells. Some towns in the region sit near heavier industry, which can affect readings on still days.
Today - 9 August | Pollution peaks at 14:00
AQI:
Fair
34.6/100
PM2.5 (fine particles):
Good
4.5/100
PM10 (coarse particles):
Good
1.5/100
NO2 (nitrogen dioxide):
Good
1.8/100
O3 (ozone):
Fair
34.6/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.5/100
PM1 (ultrafine particles):
Good
5.4/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 17:00
AQI:
Fair
31.1/100
PM2.5 (fine particles):
Good
5.1/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
2.3/100
O3 (ozone):
Fair
31.1/100
SO2 (sulfur dioxide):
Good
0.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.2/100
PM1 (ultrafine particles):
Good
4.3/100
Other Landmarks in Donostia
Sports venues in Donostia
Frequently Asked Questions
Is air quality bad in Parte Vieja right now?
On 9 August 2026, overall air quality in Parte Vieja is fair. AQI is the main air quality indicator at 34.6/100. Pollution peaks around 2:00 PM (O3: 34.6/100).
Will air quality be worse tomorrow in Parte Vieja?
On 10 August 2026, air quality conditions in Parte Vieja will be similar to today, with AQI forecast at fair at 31.1/100. Pollution peaks around 5:00 PM (O3: 31.1/100).
When is air pollution at its worst in Parte Vieja?
What time of year has the cleanest air in Parte Vieja? Winter tends to bring the year's weakest readings, as stagnant, cold air lets heating smoke and vehicle emissions build up rather than clear away. Spring is typically a transitional season, as milder, windier weather starts clearing out the pollutants that accumulate during winter's calm spells. High summer temperatures and strong sun exposure drive ozone levels up, occasionally combined with smoke from nearby wildfires during dry spells. The transition into autumn generally brings cleaner conditions, as more frequent rainfall and lower temperatures curb ozone formation. This region's wetter, windier Atlantic climate generally keeps annual air quality more consistent than in Spain's drier interior and south.
Are air quality levels in Parte Vieja 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: 10 August 2026 at 02:34 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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