SmogRank / World / South Korea / Gyeongsangnam-do / January 2025
Most people breathing unhealthy air in Gyeongsangnam-do, South Korea, January 2025
7 cities in Gyeongsangnam-do, South Korea measured at 2 or more places, ranked by how many people breathed unhealthy air on an average day over the 31 days. The most people breathing unhealthy air: Changwon, South Korea, about 99.3K on an average day. A city needs measurements on 70% of the days to be ranked.
About 281K people in these 7 cities breathed unhealthy air on an average day of January 2025.
Ranked by people: each city's population times its share of unhealthy days, those with a daily mean over 35.4 µg/m³ (US AQI 101+). That is how many people living there breathed unhealthy air on an average day. Only cities measured at 2 or more places at least 3 km apart are ranked: one monitor shouldn't speak for a whole city. Population is the city itself, not its wider metro area.
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 Gyeongsangnam-do, South Korea, by people breathing unhealthy air, PM2.5, January 2025, smogrank.com/kr/region/gyeongsangnam-do/history/2025-01?by=people (accessed 7 Oct 2026).
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