SmogRank / Episodes / South Korea
South Korea, November 2024
For 1 day, on 21 November 2024, 39 cities in South Korea had PM2.5 at least twice their usual for the time of year. The worst reading was Seonghwan, Chungcheongnam-do, South Korea: 50.4 µg/m³ on 21 November, about 2.1× its usual 23.5.
Day by day
How it spread
Every city it reached
| City | Days | Highest | Above usual |
|---|---|---|---|
| Yangp'yŏngGyeonggi-do, South Korea | 1 | 46.221 November | 2.7× |
| YeonggwangJeollanam-do, South Korea | 1 | 33.424 November | 2.6× |
| WabuGyeonggi-do, South Korea | 1 | 37.321 November | 2.6× |
| HwacheonGangwon-do, South Korea | 1 | 29.821 November | 2.6× |
| NajuJeollanam-do, South Korea | 1 | 34.821 November | 2.5× |
| GapyeongGyeonggi-do, South Korea | 1 | 27.221 November | 2.4× |
| Hongch’ŏnGangwon-do, South Korea | 1 | 33.921 November | 2.3× |
| EisenGyeongsangbuk-do, South Korea | 1 | 33.921 November | 2.3× |
| CheorwonGangwon-do, South Korea | 1 | 37.421 November | 2.3× |
| AnseongGyeonggi-do, South Korea | 1 | 45.121 November | 2.3× |
| Bucheon-siGyeonggi-do, South Korea | 1 | 38.721 November | 2.3× |
| Seongnam-siGyeonggi-do, South Korea | 1 | 36.421 November | 2.2× |
| GyeongjuGyeongsangbuk-do, South Korea | 1 | 26.821 November | 2.2× |
| ChangsuJeollabuk-do, South Korea | 1 | 33.321 November | 2.2× |
| GangneungGangwon-do, South Korea | 1 | 29.221 November | 2.2× |
| NamsaJeollabuk-do, South Korea | 1 | 37.021 November | 2.2× |
| ChuncheonGangwon-do, South Korea | 1 | 28.921 November | 2.2× |
| KunwiGyeongsangbuk-do, South Korea | 1 | 26.721 November | 2.2× |
| NeietsuGangwon-do, South Korea | 1 | 28.921 November | 2.2× |
| YeonilGyeongsangbuk-do, South Korea | 1 | 33.421 November | 2.2× |
| MungyeongGyeongsangbuk-do, South Korea | 1 | 32.021 November | 2.1× |
| SeonghwanChungcheongnam-do, South Korea | 1 | 50.421 November | 2.1× |
| Anyang-siGyeonggi-do, South Korea | 1 | 37.321 November | 2.1× |
| YeojuGyeonggi-do, South Korea | 1 | 46.421 November | 2.1× |
| GwangmyeongGyeonggi-do, South Korea | 1 | 36.721 November | 2.1× |
| OsanGyeonggi-do, South Korea | 1 | 38.921 November | 2.1× |
| Guri-siGyeonggi-do, South Korea | 1 | 35.021 November | 2.1× |
| JangseongJeollanam-do, South Korea | 1 | 26.421 November | 2.1× |
| TongyeongGyeongsangnam-do, South Korea | 1 | 27.421 November | 2.1× |
| KoesanNorth Chungcheong, South Korea | 1 | 37.721 November | 2.1× |
| GwangjuGwangju, South Korea | 1 | 30.921 November | 2.0× |
| Ansan-siGyeonggi-do, South Korea | 1 | 38.821 November | 2.0× |
| Uijeongbu-siGyeonggi-do, South Korea | 1 | 35.321 November | 2.0× |
| Donghae CityGangwon-do, South Korea | 1 | 25.521 November | 2.0× |
| Icheon-siGyeonggi-do, South Korea | 1 | 41.721 November | 2.0× |
| CheonanChungcheongnam-do, South Korea | 1 | 37.521 November | 2.0× |
| MunsanGyeonggi-do, South Korea | 1 | 34.621 November | 2.0× |
| SantyokuGangwon-do, South Korea | 1 | 27.421 November | 2.0× |
| BuyeoChungcheongnam-do, South Korea | 1 | 31.421 November | 2.0× |
Daily means in µg/m³. Usual: the city's median for this time of year (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that.
Against other episodes in South Korea
Number 32 of 63 episodes in South Korea since our records began, by cities reached.
- Japan and South Korea, March 2025454
- Japan and South Korea, March 2026305
- Japan and South Korea, January 2025274
- Japan and South Korea, February and March 2025192
- South Korea and Japan, January 2026169
- South Korea and Japan, February 2026147
- South Korea, February 2025132
- South Korea, November 2025128
- South Korea, February 2026121
- South Korea, December 2025113
- South Korea, January 2025113
- South Korea, December 2025107
- South Korea, November 202439
Bars: cities reached; colour: the level of the episode's highest daily reading. All 63.
Use this page
SmogRank, South Korea, November 2024: 39 cities with PM2.5 at twice their usual or more, 21 November 2024, smogrank.com/episodes/2024-11-south-korea (accessed 3 October 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.
An episode is a run of days when many cities close to each other (four or more within 350 km on a day, 8 or more in all) each had a daily PM2.5 mean of at least 25 µg/m³ and at least 2 times their usual for that time of year. Found in our own measurements, not picked by hand. How we find episodes. Values are each city's daily mean of its own monitors; causes are the usual kinds for a pattern like this, not a confirmed source.