Worst air pollution Marco de Canavezes, today and tomorrow
Today (30 August): Air quality in Marco de Canavezes is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 6:00 PM (O3: 39.3/100).
Tomorrow (31 August 2026): Air quality in Marco de Canavezes is fair. All pollutants stay as today. Pollution peaks around 6:00 PM (O3: 29.0/100). Airmine updates local air quality forecasts four times daily.
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Marco de Canaveses' air quality reflects the Tâmega river valley in Porto's northeastern hinterland, with vehicle traffic on the A4 motorway and the surrounding granite quarrying, agricultural, and light manufacturing operations contributing local sources. Atlantic westerlies generally provide maritime ventilation, while the Marão mountains create significant topographic variation and the granite quarrying operations add distinctive stone dust PM10 to the local air quality profile alongside the primary vehicle and agricultural sources throughout the year.
Today - 30 August | Pollution peaks at 18:00
AQI:
Fair
39.3/100
PM2.5 (fine particles):
Good
4.1/100
PM10 (coarse particles):
Good
1.6/100
NO2 (nitrogen dioxide):
Good
9.3/100
O3 (ozone):
Fair
39.3/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
2.4/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 18:00
AQI:
Fair
29.0/100
PM2.5 (fine particles):
Good
6.4/100
PM10 (coarse particles):
Good
3.4/100
NO2 (nitrogen dioxide):
Good
8.6/100
O3 (ozone):
Fair
29.0/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.2/100
PM1 (ultrafine particles):
Good
3.0/100
Pollen forecast in Marco de Canavezes
View pollen forecastFrequently Asked Questions
Is air quality bad in Marco de Canavezes right now?
On 30 August 2026, overall air quality in Marco de Canavezes is fair. AQI is the main air quality indicator at 39.3/100. Pollution peaks around 6:00 PM (O3: 39.3/100).
Will air quality be worse tomorrow in Marco de Canavezes?
On 31 August 2026, air quality conditions in Marco de Canavezes will be similar to today, with AQI forecast at fair at 29.0/100. Pollution peaks around 6:00 PM (O3: 29.0/100).
When is air pollution at its worst in Marco de Canavezes?
Reduced air quality in Marco de Canavezes is most likely when local tree and grass allergens peaks, alongside periods of vehicle traffic on the A4 motorway and the local granite quarrying, agricultural, and light manufacturing operations; a shift to wetter or windier weather typically brings noticeable relief.
Are air quality levels in Marco de Canavezes 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: 30 August 2026 at 20:26 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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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