SmogRank / World / South Korea / Jeju-do / September 2023
Most polluted cities in Jeju-do, South Korea, September 2023
No city in Jeju-do, South Korea had measurements on 70% of the days, so September 2023 has no board for Jeju-do, South Korea.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+
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
All cities in the world, September 2023 · All cities in South Korea, September 2023 · Jeju-do now