Worst air pollution Paredes, today and tomorrow

Today (21 July): Air quality in Paredes is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 40.1/100).
Tomorrow (22 July 2026): Air quality in Paredes is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 39.9/100). 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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Paredes' air quality reflects the greater Porto metropolitan area's northeastern corridor, with vehicle traffic on the A42 and surrounding granite quarrying, furniture, and automotive parts manufacturing contributing local sources. Atlantic westerlies generally provide maritime ventilation, while the surrounding Douro valley hills create topographic variation and the granite quarrying operations add distinctive stone dust PM10 that makes Paredes one of northern Portugal's more industrially distinctive municipalities.

Today - 21 July | Pollution peaks at 14:00

AQI:

Medium

40.1/100

PM2.5 (fine particles):

Good

15.9/100

PM10 (coarse particles):

Good

12.9/100

NO2 (nitrogen dioxide):

Good

10.2/100

O3 (ozone):

Medium

40.1/100

SO2 (sulfur dioxide):

Good

0.7/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

7.3/100

PM1 (ultrafine particles):

Good

14.0/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 15:00

AQI:

Fair

39.9/100

PM2.5 (fine particles):

Good

14.3/100

PM10 (coarse particles):

Good

10.7/100

NO2 (nitrogen dioxide):

Good

11.1/100

O3 (ozone):

Fair

39.9/100

SO2 (sulfur dioxide):

Good

0.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

5.3/100

PM1 (ultrafine particles):

Good

9.4/100

Pollen forecast in Paredes

View pollen forecast

Frequently Asked Questions

Is air quality bad in Paredes right now?

On 21 July 2026, overall air quality in Paredes is medium. AQI is the main air quality indicator at 40.1/100. Pollution peaks around 2:00 PM (O3: 40.1/100).

Will air quality be worse tomorrow in Paredes?

On 22 July 2026, air quality conditions in Paredes will be worse than today, with AQI forecast at fair at 39.9/100. Pollution peaks around 3:00 PM (O3: 39.9/100).

When is air pollution at its worst in Paredes?

People in Paredes tend to notice reduced air quality when oak and eucalyptus pollen peaks, or because of vehicle traffic on the A42 and surrounding granite quarrying, furniture, and automotive parts manufacturing; the rest of the calendar year is generally more forgiving for air quality.

Are air quality levels in Paredes 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.

Want to see air quality forecasts for other cities in Portugal?

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Data provided by Airmine — Last update: 21 July 2026 at 16:20 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