SmogRank / World / Serbia / Central Serbia / October 2023
Most unhealthy days in Central Serbia, Serbia, October 2023
2 cities in Central Serbia, Serbia ranked by their share of unhealthy days over the 31 days. The most unhealthy days: Niš, Serbia, 0 of 30 measured days. A city needs measurements on 70% of the days to be ranked.
Ranked by unhealthy days: the share of each city's measured days with a daily mean over 35.4 µg/m³ (US AQI 101+), Unhealthy for Sensitive Groups or worse on the US EPA's scale. Ties go to the higher average.
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
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SmogRank, most polluted cities in Central Serbia, Serbia, by unhealthy days, PM2.5, October 2023, smogrank.com/rs/region/central-serbia/history/2023-10?by=days (accessed 7 Oct 2026).
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