An annual report by an international air pollution watchdog organization said that three Serbian cities ranked among the 15 most polluted in the Western Balkans.
The Switzerland-based IQ Air organization said that the cities of Valjevo, Nis and Kosjeric ranked 3rd, 6th and 14th respectively on the list.
It said that Serbia ranked 28th on a list of 106 most polluted countries in terms of annual average PM2.5 concentration (μg/m³), weighted by population. The capital Belgrade ranked 24th based on the same criteria.
The report said that Serbia is one of several countries that “commonly experience two or more months during which average air quality is classified as “unhealthy” (≥ 55.5 μg/m³) by US AQI standards”.