대기질 데이터 제공: the Czech Hydrometeorological Institute (Český hydrometeorologický ústav) (portal.chmi.cz)
PM 2.5 (미세먼지)에 대한 측정값은 관측소에서 가져온 것입니다. CZ:Prague/Praha 5-Smichov and the measurements for PM10 (respirable particulate matter) and NO2 (nitrogen dioxide) are taken from the station: Pha10-Vrsovice, Prague