ການພະຍາກອນຄຸນນະພາບອາກາດ
ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: the Czech Hydrometeorological Institute (Český hydrometeorologický ústav) (portal.chmi.cz)
Note that the measurements for NO2 (nitrogen dioxide) and O3 (ozone) are taken from the station: Hranice, Olomoucky and the measurement for SO2 (sulfur dioxide) are taken from the station: Vitkov, Moravskoslezsky