Air quality in South Korea
Air quality index (AQI⁺) and PM2.5 air pollution in South Korea • 20:45, Oct 09
Seoul Metropolitan GovernmentAir Gyeonggi-DoKorea Environment CorporationIncheon Metropolitan City Institute of Health and EnvironmentChungnam Institute of Health and EnvironmentBusan Metropolitan CityDaegu Metropolitan City Institute of Health and EnvironmentDaejeon Metropolitan CityGyeongsangbuk Government Public Institute of Health and EnvironmentJeollabuk-Do Institute of Health and Environment ResearchJeju Special Self-Governing ProvinceGwangju Government Public Institute of Health and EnvironmentUlsan Institute of Health and Environment Air-GangwonGonggam Sensors Co., Ltd.Korea International School (KIS) - Seoul CampusSejong GovernmentJason LantzJustin AhnSKh맑고푸르게KwenBusan Foreign SchoolAnonymous contributor
Seoul Metropolitan GovernmentAir Gyeonggi-DoKorea Environment CorporationIncheon Metropolitan City Institute of Health and EnvironmentChungnam Institute of Health and EnvironmentBusan Metropolitan CityDaegu Metropolitan City Institute of Health and EnvironmentDaejeon Metropolitan CityGyeongsangbuk Government Public Institute of Health and EnvironmentJeollabuk-Do Institute of Health and Environment ResearchJeju Special Self-Governing ProvinceGwangju Government Public Institute of Health and EnvironmentUlsan Institute of Health and Environment Air-GangwonGonggam Sensors Co., Ltd.Korea International School (KIS) - Seoul CampusSejong GovernmentJason LantzJustin AhnSKh맑고푸르게KwenBusan Foreign SchoolAnonymous contributor
Live most polluted city ranking
Real-time South Korea most polluted city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 |  Pyeongtaek | 118 | |
| 2 | Anseong | 117 | |
| 3 | Gunsan | 115 | |
| 4 | Buan | 111 | |
| 5 | Cheonan | 105 | |
| 6 | Hwaseong | 96 | |
| 7 | Nonsan | 96 | |
| 8 | Iksan | 94 | |
| 9 | Sejong | 92 | |
| 10 | Yeongam | 88 |
2025 South Korea most polluted city
| Taisen-ri, Chungcheongnam-do | 74 |
Live cleanest city ranking
Real-time South Korea cleanest city ranking
| # | Cities | AQI⁺ US | |
|---|---|---|---|
| 1 | Jeju | 55 | |
| 2 | Masan | 55 | |
| 3 | Gangneung | 56 | |
| 4 | Yeongdeok | 56 | |
| 5 | Seogwipo | 57 | |
| 6 | Busan | 58 | |
| 7 | Chuncheon | 58 | |
| 8 | Gyeongju | 58 | |
| 9 | Hoengseong | 58 | |
| 10 | Jinju | 58 |
2025 South Korea cleanest city
| Goseong, Gyeongsangnam-do | 52 |
2025 South Korea air quality
2025 country air quality average
How polluted is South Korea?
In 2025 in South Korea, the annual PM2.5 concentration was 3.4 times the WHO annual PM2.5 guideline.
2025 AQI⁺ country ranking
Which country had the worst air quality in 2025?
Worldwide PM2.5 ranking
2025 South Korea global rank in air pollution
55/143
Wildfires in South Korea
Real-time information
Active fires
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