Highest air pollution Colosseum - Rome, today and tomorrow
Today (27 June): Air quality in Colosseum is fair. PM2.5 and PM1 are fair; AQI, NO2, and O3 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 11:00 AM (O3: 53.5/100).
Tomorrow (28 June 2026): Air quality in Colosseum is fair. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 49.8/100). 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
Rome's Colosseum sits within one of the city's highest-traffic zones, with vehicle emissions elevating NO₂ and PM10 significantly above residential averages. Winter temperature inversions trap exhaust emissions across the historic centre, producing the worst annual pollution episodes.
Today - 27 June | Pollution peaks at 11:00
AQI:
Medium
53.5/100
PM2.5 (fine particles):
Fair
21.5/100
PM10 (coarse particles):
Good
6.5/100
NO2 (nitrogen dioxide):
Medium
40.4/100
O3 (ozone):
Medium
53.5/100
SO2 (sulfur dioxide):
Good
4.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
18.3/100
PM1 (ultrafine particles):
Fair
26.2/100
Levels show the poorest local air quality during the day
Tomorrow - 28 June | Pollution peaks at 12:00
AQI:
Medium
49.8/100
PM2.5 (fine particles):
Fair
23.9/100
PM10 (coarse particles):
Good
7.0/100
NO2 (nitrogen dioxide):
Fair
32.2/100
O3 (ozone):
Medium
49.8/100
SO2 (sulfur dioxide):
Good
4.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
14.7/100
PM1 (ultrafine particles):
Fair
28.4/100
Other Landmarks in Rome
Frequently Asked Questions
Is air quality bad in Colosseum right now?
On 27 June 2026, overall air quality in Colosseum is fair. PM1 is the main pollutant at 26.2/100. Pollution peaks around 11:00 AM (O3: 53.5/100).
Will air quality be worse tomorrow in Colosseum?
On 28 June 2026, air quality conditions in Colosseum will be similar to today, with NO2 forecast at fair at 32.2/100. Pollution peaks around 12:00 PM (O3: 49.8/100).
Are air quality levels in Colosseum 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: 27 June 2026 at 12:36 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