वायु गुणवत्ता डेटा प्रदानकर्ता: the World Meteorological Organization - surface synoptic observations (WMO-SYNOP) (worldweather.wmo.int) and Pristina Air Quality Monitor - US Consulate (airnow.gov) and the Instituti Hidrometeorologjik i Kosovës (airqualitykosova.rks-gov.net)