Worst air pollution Letzigrund - Zürich, today and tomorrow
Today (16 July): Air quality in Letzigrund is fair. NO2 is fair; AQI and O3 are medium; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 43.5/100).
Tomorrow (17 July 2026): Air quality in Letzigrund is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 3:00 PM (O3: 33.7/100). 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.
Letzigrund's air quality reflects its dense urban Zürich position, with match-day and athletics-meeting traffic contributing local sources alongside the district's general residential and commercial emissions.
Today - 16 July | Pollution peaks at 14:00
AQI:
Medium
43.5/100
PM2.5 (fine particles):
Good
12.6/100
PM10 (coarse particles):
Good
4.9/100
NO2 (nitrogen dioxide):
Fair
24.8/100
O3 (ozone):
Medium
43.5/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.3/100
PM1 (ultrafine particles):
Good
13.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 15:00
AQI:
Fair
33.7/100
PM2.5 (fine particles):
Good
14.4/100
PM10 (coarse particles):
Good
5.3/100
NO2 (nitrogen dioxide):
Fair
24.2/100
O3 (ozone):
Fair
33.7/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.3/100
PM1 (ultrafine particles):
Good
17.5/100
Other Landmarks in Zürich
Sports venues in Zürich
Frequently Asked Questions
Is air quality bad in Letzigrund right now?
On 16 July 2026, overall air quality in Letzigrund is fair. NO2 is the main pollutant at 24.8/100. Pollution peaks around 2:00 PM (O3: 43.5/100).
Will air quality be worse tomorrow in Letzigrund?
On 17 July 2026, air quality conditions in Letzigrund will be similar to today, with AQI forecast at fair at 33.7/100. Pollution peaks around 3:00 PM (O3: 33.7/100).
When is air pollution at its worst in Letzigrund?
On the rare still winter morning, vehicle traffic and dense urban activity at Letzigrund settle along the lake basin and linger, pushing readings to their worst point of the year. From spring, conditions steadily pick up, and summer stays mostly clear aside from a rare ozone spike in prolonged heat, with autumn usually just as settled.
Are air quality levels in Letzigrund 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 Switzerland?
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