Sejong Air Quality
Current air-quality information for Sejong, South Korea.
Air quality is generally considered satisfactory.
World Air Quality Index Project (WAQI) · Updated 2026-10-16T00:00:00+09:00Health context
At the current AQI of 30, Sejong is in the Good category on the displayed AQI scale. Most people can continue normal outdoor activities. Current pollutant values shown for Sejong are PM2.5 25 µg/m³, PM10 30 µg/m³, O₃ 11.1 µg/m³, NO₂ 12.5 µg/m³. The current reading is identified on this page as World Air Quality Index Project (WAQI).
Air-quality information is not medical advice. People with asthma, heart or lung disease, children, older adults and other sensitive groups may need to take additional precautions when pollution is elevated.
Recent History & Forecast
This chart shows atmospheric-model AQI history and forecast from Open-Meteo / Copernicus Atmosphere Monitoring Service (CAMS) model. It is separate from any monitoring-station observation shown in the Current AQI card.
What does AQI 30 mean in Sejong?
Sejong currently has an AQI of 30, which falls in the Good category. This indicates relatively low overall air pollution on the displayed AQI scale. Normal outdoor activity is generally appropriate for most people. The pollutant values currently shown for Sejong are PM2.5 25 µg/m³, PM10 30 µg/m³, O₃ 11.1 µg/m³, NO₂ 12.5 µg/m³. The displayed current conditions are identified as World Air Quality Index Project (WAQI).
Nearby cities
- Cheongju-si air quality — approximately 18 km away
- Cheonan air quality — approximately 27 km away
- Daejeon air quality — approximately 28 km away
- Pyeongtaek air quality — approximately 48 km away
- Iksan air quality — approximately 78 km away
- Hwaseong-si air quality — approximately 80 km away
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