ການພະຍາກອນຄຸນນະພາບອາກາດ
ຂໍ້ມູນຄຸນນະພາບອາກາດສະໜອງໃຫ້ໂດຍ: the Czech Hydrometeorological Institute (Český hydrometeorologický ústav) (portal.chmi.cz)
Note that the measurement for SO2 (sulfur dioxide) are taken from the station: Kladno-stred mesta, Stredocesky and the measurement for O3 (ozone) are taken from the station: Tobolka-Certovy schody, Stredocesky