Worst air pollution Puertochico - Santander, today and tomorrow
Today (9 August): Air quality in Puertochico is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 36.8/100).
Tomorrow (10 August 2026): Air quality in Puertochico is fair. All pollutants stay as today. Pollution peaks around 6:00 PM (O3: 31.8/100). Airmine updates local air quality forecasts four times daily.
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In Puertochico, light industry in some towns and damp-weather heating smoke in winter have the largest effect 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 15:00
AQI:
Fair
36.8/100
PM2.5 (fine particles):
Good
8.5/100
PM10 (coarse particles):
Good
3.8/100
NO2 (nitrogen dioxide):
Good
16.3/100
O3 (ozone):
Fair
36.8/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.7/100
PM1 (ultrafine particles):
Good
6.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 18:00
AQI:
Fair
31.8/100
PM2.5 (fine particles):
Good
8.3/100
PM10 (coarse particles):
Good
4.6/100
NO2 (nitrogen dioxide):
Good
14.9/100
O3 (ozone):
Fair
31.8/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
5.7/100
Other Landmarks in Santander
Frequently Asked Questions
Is air quality bad in Puertochico right now?
On 9 August 2026, overall air quality in Puertochico is fair. AQI is the main air quality indicator at 36.8/100. Pollution peaks around 3:00 PM (O3: 36.8/100).
Will air quality be worse tomorrow in Puertochico?
On 10 August 2026, air quality conditions in Puertochico will be similar to today, with AQI forecast at fair at 31.8/100. Pollution peaks around 6:00 PM (O3: 31.8/100).
When is air pollution at its worst in Puertochico?
When is air quality typically worst in Puertochico? Winter is generally the most challenging season, since low wind speeds and temperature inversions prevent traffic and wood-smoke pollution from dispersing. Spring generally sees a gradual recovery, driven by more frequent rain showers and stronger breezes that prevent pollutants from settling. Summer's combination of intense sun and high temperatures makes ozone the main concern, occasionally compounded by wildfire smoke during dry, windy spells. The first rains of autumn typically help clear out any lingering summer dust or ozone, setting up milder conditions ahead of winter. Frequent Atlantic weather systems mean pollution rarely has the chance to accumulate for long stretches in this area.
Are air quality levels in Puertochico 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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