Map

The map below shows concentrations for the three main pollutants in 20 major European cities in 2018. You can select the desired time and date. By clicking on a city, you can explore the diurnal development.
Please note, that not all data series are complete.

Plot

The plot below enables you to compare the daily pollutant concentrations (median) in the different cities to a number of different factors, including weather (air temperature, sunshine duration, precipitation, wind speed), other pollutants as well as temporal factors (annual development and weekdays).
Please note, that not all data series are complete. Not every city can be plotted for every factor.