Air Quality Lab — Busan, South Korea
Air Quality Profile
Busan reports an annual PM2.5 of 17.8 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Busan
South Korea
South KoreaAnnual Average
ModerateWHO annual classification
17.8µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
1717 µg/m³ — Moderate
1818 µg/m³ — Moderate
2020 µg/m³ — Moderate
2020 µg/m³ — Moderate
1919 µg/m³ — Moderate
1717 µg/m³ — Moderate
1616 µg/m³ — Moderate
1515 µg/m³ — Moderate
1818 µg/m³ — Moderate
1616 µg/m³ — Moderate
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
1717 µg/m³ — Moderate
1818 µg/m³ — Moderate
2020 µg/m³ — Moderate
2020 µg/m³ — Moderate
1919 µg/m³ — Moderate
1717 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1616 µg/m³ — Moderate
1515 µg/m³ — Moderate
1818 µg/m³ — Moderate
1616 µg/m³ — Moderate
1818 µg/m³ — Moderate
1919 µg/m³ — Moderate
Best months: Jul–Aug, OctWorst months: Mar–Apr, Dec
Moderate15–25 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across South Korea
Busan: 17.8 µg/m³. Typical range in South Korea: 18.7–23.0 µg/m³. Low anchor: Seogwipo, 14.0 µg/m³. High anchor: Seoul, 26.6 µg/m³.
108 cities tracked