SmogRank / World / Asia / South Korea / Busan

Most polluted cities in Busan, South Korea

2 measured cities, last 7 days; 0 above the WHO 24-hour guideline. Worst: Busan at 11.5 µg/m³, #560 in the world.

Busan: 2 measured citiesGyeongsangnam-do: 13 measured citiesUlsan: 1 measured city#2 Gijang: 11.0 µg/m³#1 Busan: 11.5 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
  1. 1Busan 11.5
  2. 2Gijang 11.0
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

PM2.5 in µg/m³, coloured by the US EPA's PM2.5 categories. 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 Busan, South Korea, PM2.5, last 7 days to 2 Oct 2026, 06:00 UTC, smogrank.com/kr/region/busan?w=7d.

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Updated 2026-10-02 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.