Most polluted cities in Daejeon, South Korea

0 measured cities, last 24 hours.

Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.

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Low risk1–3

Moderate risk4–6

High risk7–10

Very high risk10+

Canada's AQHI+ for PM2.5 (1 point per 10 µg/m³), which is defined on hourly values. 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 Daejeon, South Korea, PM2.5, last 24 hours to 2 Oct 2026, 04:00 UTC, smogrank.com/kr/region/daejeon.

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Updated 2026-10-02 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the Canada AQHI+ PM2.5 sub-index.