The data is downloaded through the API of the Cłówny Inspektorat Ochrony Środowiska in Poland. On the dashboard you can find information on concentrations of : NO2, SO2, O3, PM 2.5 and PM 10 at specific locations in Poland. There is also information of the Polish Air Quality Index for given cities. At the bottom of the dashboard there is also a line chart with the average concentration of the selected compound for the last two days.