Worst air pollution Frosinone, today and tomorrow
Today (16 July): Air quality in Frosinone is medium. AQI, NO2, and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 51.9/100).
Tomorrow (17 July 2026): Air quality in Frosinone is fair. HCHO increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 47.7/100). 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
Use our Strava plugin to check your own exposure.
The dominant influence on Frosinone's air quality is vehicle traffic on the A1 and Sacco valley manufacturing, layered onto a setting in the Lazio's Sacco valley south of Rome within Lazio. Ventilation here depends heavily on wind and rainfall, with the calmest, most stagnant periods generally producing the least favourable readings.
Today - 16 July | Pollution peaks at 14:00
AQI:
Medium
51.9/100
PM2.5 (fine particles):
Good
17.4/100
PM10 (coarse particles):
Good
8.2/100
NO2 (nitrogen dioxide):
Medium
47.9/100
O3 (ozone):
Medium
51.9/100
SO2 (sulfur dioxide):
Good
3.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.6/100
PM1 (ultrafine particles):
Good
18.4/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
47.7/100
PM2.5 (fine particles):
Good
19.5/100
PM10 (coarse particles):
Good
10.2/100
NO2 (nitrogen dioxide):
Medium
45.5/100
O3 (ozone):
Medium
47.7/100
SO2 (sulfur dioxide):
Good
3.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Fair
22.0/100
PM1 (ultrafine particles):
Good
19.3/100
Pollen forecast in Frosinone
View pollen forecastFrequently Asked Questions
Is air quality bad in Frosinone right now?
On 16 July 2026, overall air quality in Frosinone is medium. AQI is the main air quality indicator at 51.9/100. Pollution peaks around 2:00 PM (O3: 51.9/100).
Will air quality be worse tomorrow in Frosinone?
On 17 July 2026, air quality conditions in Frosinone will be worse than today, with HCHO forecast at fair at 22.0/100. Pollution peaks around 12:00 PM (O3: 47.7/100).
When is air pollution at its worst in Frosinone?
Residents in Frosinone are most likely to notice reduced air quality when plane and pine pollen peaks, or during spells of vehicle traffic on the A1 and Sacco valley manufacturing; conditions generally improve once the season shifts and stronger winds or rainfall return to clear the Lazio air. Outside these periods, most days bring reasonably steady, breathable conditions across the town.
Are air quality levels in Frosinone 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.
Want to see air quality forecasts for other cities in Italy?
Check air quality in other popular cities:
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