Worst air pollution CERN - Geneva, today and tomorrow
Today (16 July): Air quality in CERN is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 42.3/100).
Tomorrow (17 July 2026): Air quality in CERN is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 34.8/100). 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
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CERN's air quality benefits from its position in open farmland at Geneva's edge near the French border, with limited traffic beyond staff commuting keeping background conditions generally clean.
Today - 16 July | Pollution peaks at 12:00
AQI:
Medium
42.3/100
PM2.5 (fine particles):
Good
17.6/100
PM10 (coarse particles):
Good
7.2/100
NO2 (nitrogen dioxide):
Fair
26.9/100
O3 (ozone):
Medium
42.3/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
10.3/100
PM1 (ultrafine particles):
Good
18.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Fair
34.8/100
PM2.5 (fine particles):
Good
10.3/100
PM10 (coarse particles):
Good
6.8/100
NO2 (nitrogen dioxide):
Fair
22.2/100
O3 (ozone):
Fair
34.8/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.3/100
PM1 (ultrafine particles):
Good
9.1/100
Other Landmarks in Geneva
Sports venues in Geneva
Frequently Asked Questions
Is air quality bad in CERN right now?
On 16 July 2026, overall air quality in CERN is fair. NO2 is the main pollutant at 26.9/100. Pollution peaks around 12:00 PM (O3: 42.3/100).
Will air quality be worse tomorrow in CERN?
On 17 July 2026, air quality conditions in CERN will be similar to today, with AQI forecast at fair at 34.8/100. Pollution peaks around 12:00 PM (O3: 34.8/100).
When is air pollution at its worst in CERN?
Air quality at CERN dips most on still winter mornings, when vehicle traffic and international commuter activity settle in close to the lake and sit under a shallow basin inversion. Warmer months bring noticeably better airflow off the lake, with only the occasional summer ozone spike breaking an otherwise clean pattern through spring and autumn.
Are air quality levels in CERN 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