According to data from the World Health Organization on ultra-fine particles of less than 2.5 microns .eight of the ten cities with air pollution in Europe are from Turkey. According to the data from the WHO, the western province of Afyon, and the southern province of Isparta, the southeastern province of Gaziantep, the eastern provinces of Batman, Hakkari, Siirt and Iğdır and the Central Anatolian province of Karaman all suffer from polluted air. The two remaining cities in the top ten from the list are Tetovo in Macedonia at number one and Tuzla in Bosnia and Herzegovina at number five.
If the European list excludes Turkey, the top 10 reads Tetovo, Tuzla, Skopje in Macedonia, Zywiec in Poland, Pszczyna in Poland, Dimitrovgrad in Bulgaria, Pljevlja in Montenegro, Rybnik in Poland, Bitola in Macedonia and Wodzislaw Slaski in Poland. According to WHO, billions of people in cities around the world are exposed to dangerous air, but pollution levels quite vary. The WHO data showed that some 12.6 million people die each year due to air and environment pollution.