Данные о качестве воздуха предоставлены: the World Meteorological Organization - surface synoptic observations (WMO-SYNOP) (worldweather.wmo.int) and Tashkent Air Quality Monitor - US Embassy (uz.usembassy.gov) and Uzhydromet - Center for Hydrometeorological Service of the Republic of Uzbekistan (monitoring.meteo.uz)