What is the air quality in Gongju?

Gongju, South Korea has an annual US AQI of 78 (Polluted) and average PM2.5 of 22.3 µg/m³, ranking #3677 of 5856 cities. Main pollutant: PM2.5.

What is the cleanest month in Gongju?

September is typically the cleanest month (AQI 59) and March the most polluted (AQI 91).

Where does Gongju's air quality data come from?

PM2.5: 1998–2026 (monitors 2017–2026, satellite 1998–2017; 2025–2026 provisional). Measured by government monitoring stations. Full sources are on the methodology page.

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

Gongju Air Quality Data

Global rank	City	Continent	AQI	PM2.5
3677	Gongju, South Korea	Asia	AQI 78	PM2.5 22.3 µg/m³