What is the air quality in Busan?

Busan, South Korea has an annual US AQI of 71 (Polluted) and average PM2.5 of 19.6 µg/m³, ranking #3284 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Busan?

September is typically the cleanest month (AQI 58) and May the most polluted (AQI 81).

Where does Busan's air quality data come from?

PM2.5: 1998–2026 (monitors 2015–2026, satellite 1998–2014; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

Busan, South Korea — Air Quality & Clean City Guide 2026

Busan Air Quality Data

Global rank	City	Continent	AQI	PM2.5
3284	Busan, South Korea	Asia	AQI 71	PM2.5 19.6 µg/m³