Worst air pollution Velletri, today and tomorrow
Today (16 July): Air quality in Velletri 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: 45.8/100).
Tomorrow (17 July 2026): Air quality in Velletri is fair. HCHO increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 43.5/100). 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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Velletri's air quality reflects the Castelli Romani volcanic hills southeast of Rome at 332 metres, with vehicle traffic on the A1 motorway and surrounding wine and agricultural operations contributing local sources. The elevated Colli Albani volcanic plateau position aids background dispersal compared to the flat Roman plain below, while the Tyrrhenian sea breezes provide coastal ventilation on westerly days and the volcanic highlands create topographic variation throughout the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Medium
45.8/100
PM2.5 (fine particles):
Good
13.4/100
PM10 (coarse particles):
Good
6.1/100
NO2 (nitrogen dioxide):
Good
15.0/100
O3 (ozone):
Medium
45.8/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
15.0/100
PM1 (ultrafine particles):
Good
15.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
43.5/100
PM2.5 (fine particles):
Good
15.9/100
PM10 (coarse particles):
Good
7.3/100
NO2 (nitrogen dioxide):
Good
15.4/100
O3 (ozone):
Medium
43.5/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
20.2/100
PM1 (ultrafine particles):
Good
16.0/100
Pollen forecast in Velletri
View pollen forecastFrequently Asked Questions
Is air quality bad in Velletri right now?
On 16 July 2026, overall air quality in Velletri is medium. AQI is the main air quality indicator at 45.8/100. Pollution peaks around 2:00 PM (O3: 45.8/100).
Will air quality be worse tomorrow in Velletri?
On 17 July 2026, air quality conditions in Velletri will be worse than today, with HCHO forecast at fair at 20.2/100. Pollution peaks around 12:00 PM (O3: 43.5/100).
When is air pollution at its worst in Velletri?
The most noticeable dips in Velletri's air quality come when torrent corridor linden and vine pollen peaks, or because of vehicle traffic on the A1 motorway and surrounding wine and agricultural operations; the clearest air tends to follow a change in wind direction or rainfall here.
Are air quality levels in Velletri 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: 16 July 2026 at 10:33 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