空氣品質數據提供者: the Czech Hydrometeorological Institute (Český hydrometeorologický ústav) (portal.chmi.cz)
Note that the measurements for PM2.5 (fine particulate matter), PM10 (respirable particulate matter), NO2 (nitrogen dioxide), SO2 (sulfur dioxide) and O3 (ozone) are taken from the station: Plzen-Slovany, Plzensky