Highest air pollution Rio Tinto, today and tomorrow
Today (29 June): Air quality in Rio Tinto is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 5:00 PM (O3: 34.1/100).
Tomorrow (30 June 2026): Air quality in Rio Tinto is fair. All pollutants stay as today. Pollution peaks around 6:00 PM (O3: 36.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Rio Tinto's air quality reflects the greater Porto metropolitan area's northern Gondomar-Valongo industrial corridor on the Tinto river, with vehicle traffic on the A41 motorway and surrounding industrial and residential character contributing elevated NOₓ and PM2.5. Atlantic westerlies generally provide maritime ventilation, while the surrounding Porto metropolitan hills create topographic variation and the industrial character maintains moderate but persistent emission levels above the Portuguese rural background throughout the year.
Today - 29 June | Pollution peaks at 17:00
AQI:
Fair
34.1/100
PM2.5 (fine particles):
Good
4.8/100
PM10 (coarse particles):
Good
2.1/100
NO2 (nitrogen dioxide):
Good
2.0/100
O3 (ozone):
Fair
34.1/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.8/100
PM1 (ultrafine particles):
Good
3.6/100
Levels show the poorest local air quality during the day
Tomorrow - 30 June | Pollution peaks at 18:00
AQI:
Fair
36.9/100
PM2.5 (fine particles):
Good
2.7/100
PM10 (coarse particles):
Good
1.0/100
NO2 (nitrogen dioxide):
Good
2.5/100
O3 (ozone):
Fair
36.9/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.2/100
PM1 (ultrafine particles):
Good
1.7/100
Pollen forecast in Rio Tinto
View pollen forecastFrequently Asked Questions
Is air quality bad in Rio Tinto right now?
On 29 June 2026, overall air quality in Rio Tinto is fair. AQI is the main air quality indicator at 34.1/100. Pollution peaks around 5:00 PM (O3: 34.1/100).
Will air quality be worse tomorrow in Rio Tinto?
On 30 June 2026, air quality conditions in Rio Tinto will be similar to today, with AQI forecast at fair at 36.9/100. Pollution peaks around 6:00 PM (O3: 36.9/100).
Are air quality levels in Rio Tinto 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: 29 June 2026 at 18:37 CET (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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team