대기질 예보
대기질 데이터 제공: the World Meteorological Organization - surface synoptic observations (WMO-SYNOP) (worldweather.wmo.int) and the Slovak hydrometeorological institute (Slovenský hydrometeorologický ústav) (shmu.sk)
Note that the measurement for SO2 (sulfur dioxide) are taken from the station: Sturova, Nitra