Table of moving annual values
The National Air Pollution Monitoring Network (NABEL) measures air pollution levels at 16 locations with varying pollution situations in Switzerland. The measured values for the current year are preliminary and not yet definitively verified. The table shows the number of days with exceedances of the hourly limit value for ozone as well as the mean concentrations of PM10, PM2.5 and NO2 in µg/m³ over the last 365 days.