SmogRank / Episodes / South Korea

South Korea, 21 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.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached39in 1 country
Days121 November 2024
Worst day21 November39 cities counted
Furthest above usual2.7×Yangp'yŏng

Day by day

21 November 39 cities at twice their usual or more
SangjuYeongdongOkcheonJungpyongCheongju-siChungjuGimcheonYecheonDaejeonChinch'ŏnGumiKinzanSejongWaegwanYeongjuGongjuAndongWŏnjuPubalJinan-gunNonsanYŏnmuHwawŏnDaeguAsanPyeongtaekWanjuJeonjuYesanGyeongsan-siHayangGwangjuImsilIksanChangnyeongCheongsong gunSuwonHanamNangenHongseongT’aebaekKimjeHwadoHwaseong-siNamyangjuGunsanBoryeongMiryangTangjinChinjuJeongeupKuryeSeoulNaesŏBuanHadongSeosanChangwonIncheonTaesal-liDamyangPohangYangjuGoyang-siYangguKwangyangGwangyangGoseongKimhaeGimpo-siYangsanSuncheonKoch'angJumunjinUngsangUlsanHwasunMasanBeolgyoYeosuSinhyeonSokchoBusanGijangGanghwa-gunGeojeKosongBoseongJangheungMuanYeongamMokpoHaenamSinanTsushimaNagatoMineHagiYamaguchiMasudaHamadaGōtsuchōShūnanŌdachō-ōdaŌtakeIwakuniYaeIzumoHiroshimaGionUnnanKureMiyoshiHigashihiroshimaTakeharaDonghae CityYeonggwangSantyokuGwangjuBuyeoMunsanUijeongbu-siCheonanAnsan-siIcheon-siJangseongTongyeongMungyeongGuri-siGwangmyeongAnyang-siKoesanOsanYeojuSeonghwanKunwiGyeongjuChuncheonNeietsuGangneungChangsuYeonilSeongnam-siNamsaHongch’ŏnEisenCheorwonBucheon-siAnseongGapyeongNajuHwacheonWabuYangp'yŏng
18 Nov192021222324
Every measured city in the area, coloured by its PM2.5 that day; a dark ring marks a city at twice its usual or more. Bars: cities counted each day, coloured by their median level. Choose a day or press play; without JavaScript, the days link to that day's world ranking.

How it spread

SeonghwanSeonghwan, 18 November: 9.5 µg/m³Seonghwan, 19 November: 20.9 µg/m³Seonghwan, 20 November: 37.0 µg/m³Seonghwan, 21 November: 50.4 µg/m³, 2.1× its usual 23.5Seonghwan, 22 November: 21.2 µg/m³Seonghwan, 23 November: 24.5 µg/m³Seonghwan, 24 November: 24.3 µg/m³YeojuYeoju, 18 November: 8.2 µg/m³Yeoju, 19 November: 14.9 µg/m³Yeoju, 20 November: 31.3 µg/m³Yeoju, 21 November: 46.4 µg/m³, 2.1× its usual 22.0Yeoju, 22 November: 27.2 µg/m³Yeoju, 23 November: 20.5 µg/m³Yeoju, 24 November: 16.3 µg/m³Yangp'yŏngYangp'yŏng, 18 November: 7.3 µg/m³Yangp'yŏng, 19 November: 11.4 µg/m³Yangp'yŏng, 20 November: 24.4 µg/m³Yangp'yŏng, 21 November: 46.2 µg/m³, 2.7× its usual 17.1Yangp'yŏng, 22 November: 27.1 µg/m³Yangp'yŏng, 23 November: 16.4 µg/m³Yangp'yŏng, 24 November: 14.2 µg/m³AnseongAnseong, 18 November: 5.5 µg/m³Anseong, 19 November: 11.4 µg/m³Anseong, 20 November: 32.1 µg/m³Anseong, 21 November: 45.1 µg/m³, 2.3× its usual 20.0Anseong, 22 November: 22.1 µg/m³Anseong, 23 November: 14.8 µg/m³Anseong, 24 November: 11.5 µg/m³Icheon-siIcheon-si, 18 November: 6.1 µg/m³Icheon-si, 19 November: 11.0 µg/m³Icheon-si, 20 November: 28.9 µg/m³Icheon-si, 21 November: 41.7 µg/m³, 2.0× its usual 20.5Icheon-si, 22 November: 21.2 µg/m³Icheon-si, 23 November: 15.5 µg/m³Icheon-si, 24 November: 13.0 µg/m³OsanOsan, 18 November: 7.2 µg/m³Osan, 19 November: 11.9 µg/m³Osan, 20 November: 26.6 µg/m³Osan, 21 November: 38.9 µg/m³, 2.1× its usual 18.7Osan, 22 November: 20.0 µg/m³Osan, 23 November: 14.7 µg/m³Osan, 24 November: 12.7 µg/m³Ansan-siAnsan-si, 18 November: 6.4 µg/m³Ansan-si, 19 November: 13.5 µg/m³Ansan-si, 20 November: 28.2 µg/m³Ansan-si, 21 November: 38.8 µg/m³, 2.0× its usual 19.0Ansan-si, 22 November: 15.8 µg/m³Ansan-si, 23 November: 16.7 µg/m³Ansan-si, 24 November: 14.0 µg/m³Bucheon-siBucheon-si, 18 November: 6.4 µg/m³Bucheon-si, 19 November: 14.5 µg/m³Bucheon-si, 20 November: 26.2 µg/m³Bucheon-si, 21 November: 38.7 µg/m³, 2.3× its usual 17.2Bucheon-si, 22 November: 16.5 µg/m³Bucheon-si, 23 November: 13.8 µg/m³Bucheon-si, 24 November: 14.1 µg/m³KoesanKoesan, 18 November: 10.3 µg/m³Koesan, 19 November: 10.5 µg/m³Koesan, 20 November: 25.2 µg/m³Koesan, 21 November: 37.7 µg/m³, 2.1× its usual 18.3Koesan, 22 November: 28.1 µg/m³Koesan, 23 November: 21.9 µg/m³Koesan, 24 November: 16.5 µg/m³CheonanCheonan, 18 November: 8.8 µg/m³Cheonan, 19 November: 16.6 µg/m³Cheonan, 20 November: 28.6 µg/m³Cheonan, 21 November: 37.5 µg/m³, 2.0× its usual 18.5Cheonan, 22 November: 18.7 µg/m³Cheonan, 23 November: 21.1 µg/m³Cheonan, 24 November: 20.7 µg/m³CheorwonCheorwon, 18 November: 5.6 µg/m³Cheorwon, 19 November: 6.9 µg/m³Cheorwon, 20 November: 19.3 µg/m³Cheorwon, 21 November: 37.4 µg/m³, 2.3× its usual 16.5Cheorwon, 22 November: 26.5 µg/m³Cheorwon, 23 November: 7.6 µg/m³Cheorwon, 24 November: 10.0 µg/m³WabuWabu, 18 November: 4.9 µg/m³Wabu, 19 November: 7.8 µg/m³Wabu, 20 November: 20.1 µg/m³Wabu, 21 November: 37.3 µg/m³, 2.6× its usual 14.3Wabu, 22 November: 17.7 µg/m³Wabu, 23 November: 9.8 µg/m³Wabu, 24 November: 6.7 µg/m³Anyang-siAnyang-si, 18 November: 7.6 µg/m³Anyang-si, 19 November: 11.1 µg/m³Anyang-si, 20 November: 25.0 µg/m³Anyang-si, 21 November: 37.3 µg/m³, 2.1× its usual 17.5Anyang-si, 22 November: 16.8 µg/m³Anyang-si, 23 November: 13.0 µg/m³Anyang-si, 24 November: 10.9 µg/m³NamsaNamsa, 18 November: 7.6 µg/m³Namsa, 19 November: 14.3 µg/m³Namsa, 20 November: 23.3 µg/m³Namsa, 21 November: 37.0 µg/m³, 2.2× its usual 16.8Namsa, 22 November: 20.3 µg/m³Namsa, 23 November: 22.1 µg/m³Namsa, 24 November: 24.4 µg/m³GwangmyeongGwangmyeong, 18 November: 7.7 µg/m³Gwangmyeong, 19 November: 12.6 µg/m³Gwangmyeong, 20 November: 24.7 µg/m³Gwangmyeong, 21 November: 36.7 µg/m³, 2.1× its usual 17.6Gwangmyeong, 22 November: 19.0 µg/m³Gwangmyeong, 23 November: 14.6 µg/m³Gwangmyeong, 24 November: 11.1 µg/m³Seongnam-siSeongnam-si, 18 November: 6.4 µg/m³Seongnam-si, 19 November: 10.9 µg/m³Seongnam-si, 20 November: 21.1 µg/m³Seongnam-si, 21 November: 36.4 µg/m³, 2.2× its usual 16.2Seongnam-si, 22 November: 16.7 µg/m³Seongnam-si, 23 November: 11.3 µg/m³Seongnam-si, 24 November: 9.2 µg/m³Uijeongbu-siUijeongbu-si, 18 November: 6.3 µg/m³Uijeongbu-si, 19 November: 13.9 µg/m³Uijeongbu-si, 20 November: 21.2 µg/m³Uijeongbu-si, 21 November: 35.3 µg/m³, 2.0× its usual 17.3Uijeongbu-si, 22 November: 18.3 µg/m³Uijeongbu-si, 23 November: 11.9 µg/m³Uijeongbu-si, 24 November: 11.7 µg/m³Guri-siGuri-si, 18 November: 6.9 µg/m³Guri-si, 19 November: 11.7 µg/m³Guri-si, 20 November: 22.2 µg/m³Guri-si, 21 November: 35.0 µg/m³, 2.1× its usual 16.9Guri-si, 22 November: 20.9 µg/m³Guri-si, 23 November: 12.8 µg/m³Guri-si, 24 November: 9.7 µg/m³NajuNaju, 18 November: 2.5 µg/m³Naju, 19 November: 15.1 µg/m³Naju, 20 November: 18.8 µg/m³Naju, 21 November: 34.8 µg/m³, 2.5× its usual 14.0Naju, 22 November: 22.7 µg/m³Naju, 23 November: 24.1 µg/m³Naju, 24 November: 33.2 µg/m³MunsanMunsan, 18 November: 6.0 µg/m³Munsan, 19 November: 13.0 µg/m³Munsan, 20 November: 21.3 µg/m³Munsan, 21 November: 34.6 µg/m³, 2.0× its usual 17.2Munsan, 22 November: 16.6 µg/m³Munsan, 23 November: 11.5 µg/m³Munsan, 24 November: 12.8 µg/m³EisenEisen, 18 November: 9.4 µg/m³Eisen, 19 November: 9.7 µg/m³Eisen, 20 November: 18.7 µg/m³Eisen, 21 November: 33.9 µg/m³, 2.3× its usual 14.8Eisen, 22 November: 23.5 µg/m³Eisen, 23 November: 15.1 µg/m³Eisen, 24 November: 9.2 µg/m³Hongch’ŏnHongch’ŏn, 18 November: 5.4 µg/m³Hongch’ŏn, 19 November: 7.8 µg/m³Hongch’ŏn, 20 November: 15.5 µg/m³Hongch’ŏn, 21 November: 33.9 µg/m³, 2.3× its usual 14.6Hongch’ŏn, 22 November: 28.3 µg/m³Hongch’ŏn, 23 November: 15.3 µg/m³Hongch’ŏn, 24 November: 9.3 µg/m³YeonilYeonil, 18 November: 9.4 µg/m³Yeonil, 19 November: 10.8 µg/m³Yeonil, 20 November: 20.2 µg/m³Yeonil, 21 November: 33.4 µg/m³, 2.2× its usual 15.5Yeonil, 22 November: 22.1 µg/m³Yeonil, 23 November: 14.7 µg/m³Yeonil, 24 November: 11.8 µg/m³ChangsuChangsu, 18 November: 6.3 µg/m³Changsu, 19 November: 10.5 µg/m³Changsu, 20 November: 19.6 µg/m³Changsu, 21 November: 33.3 µg/m³, 2.2× its usual 15.0Changsu, 22 November: 20.1 µg/m³Changsu, 23 November: 20.1 µg/m³Changsu, 24 November: 18.0 µg/m³MungyeongMungyeong, 18 November: 7.0 µg/m³Mungyeong, 19 November: 10.3 µg/m³Mungyeong, 20 November: 19.4 µg/m³Mungyeong, 21 November: 32.0 µg/m³, 2.1× its usual 14.9Mungyeong, 22 November: 22.7 µg/m³Mungyeong, 23 November: 16.8 µg/m³Mungyeong, 24 November: 13.9 µg/m³BuyeoBuyeo, 18 November: 7.3 µg/m³Buyeo, 19 November: 15.6 µg/m³Buyeo, 20 November: 23.7 µg/m³Buyeo, 21 November: 31.4 µg/m³, 2.0× its usual 15.7Buyeo, 22 November: 15.5 µg/m³Buyeo, 23 November: 20.3 µg/m³Buyeo, 24 November: 22.8 µg/m³GwangjuGwangju, 18 November: 7.4 µg/m³Gwangju, 19 November: 12.3 µg/m³Gwangju, 20 November: 21.5 µg/m³Gwangju, 21 November: 30.9 µg/m³, 2.0× its usual 15.1Gwangju, 22 November: 21.8 µg/m³Gwangju, 23 November: 19.5 µg/m³Gwangju, 24 November: 24.8 µg/m³HwacheonHwacheon, 18 November: 5.7 µg/m³Hwacheon, 19 November: 6.4 µg/m³Hwacheon, 20 November: 14.6 µg/m³Hwacheon, 21 November: 29.8 µg/m³, 2.6× its usual 11.6Hwacheon, 22 November: 17.9 µg/m³Hwacheon, 23 November: 8.7 µg/m³Hwacheon, 24 November: 8.0 µg/m³GangneungGangneung, 18 November: 10.6 µg/m³Gangneung, 19 November: 8.9 µg/m³Gangneung, 20 November: 17.5 µg/m³Gangneung, 21 November: 29.2 µg/m³, 2.2× its usual 13.2Gangneung, 22 November: 20.9 µg/m³Gangneung, 23 November: 10.3 µg/m³Gangneung, 24 November: 9.4 µg/m³NeietsuNeietsu, 18 November: 8.1 µg/m³Neietsu, 19 November: 5.7 µg/m³Neietsu, 20 November: 16.0 µg/m³Neietsu, 21 November: 28.9 µg/m³, 2.2× its usual 13.4Neietsu, 22 November: 24.5 µg/m³Neietsu, 23 November: 8.6 µg/m³Neietsu, 24 November: 7.3 µg/m³ChuncheonChuncheon, 18 November: 4.6 µg/m³Chuncheon, 19 November: 5.6 µg/m³Chuncheon, 20 November: 11.1 µg/m³Chuncheon, 21 November: 28.9 µg/m³, 2.2× its usual 13.2Chuncheon, 22 November: 21.3 µg/m³Chuncheon, 23 November: 7.1 µg/m³Chuncheon, 24 November: 8.2 µg/m³TongyeongTongyeong, 18 November: 9.0 µg/m³Tongyeong, 19 November: 7.0 µg/m³Tongyeong, 20 November: 16.3 µg/m³Tongyeong, 21 November: 27.4 µg/m³, 2.1× its usual 13.3Tongyeong, 22 November: 22.1 µg/m³Tongyeong, 23 November: 14.7 µg/m³Tongyeong, 24 November: 8.2 µg/m³SantyokuSantyoku, 18 November: 11.2 µg/m³Santyoku, 19 November: 9.0 µg/m³Santyoku, 20 November: 16.8 µg/m³Santyoku, 21 November: 27.4 µg/m³, 2.0× its usual 13.7Santyoku, 22 November: 18.6 µg/m³Santyoku, 23 November: 8.3 µg/m³Santyoku, 24 November: 6.5 µg/m³GapyeongGapyeong, 18 November: 2.2 µg/m³Gapyeong, 19 November: 2.3 µg/m³Gapyeong, 20 November: 12.8 µg/m³Gapyeong, 21 November: 27.2 µg/m³, 2.4× its usual 11.5Gapyeong, 22 November: 22.6 µg/m³Gapyeong, 23 November: 5.7 µg/m³Gapyeong, 24 November: 6.1 µg/m³GyeongjuGyeongju, 18 November: 7.9 µg/m³Gyeongju, 19 November: 6.7 µg/m³Gyeongju, 20 November: 16.4 µg/m³Gyeongju, 21 November: 26.8 µg/m³, 2.2× its usual 12.0Gyeongju, 22 November: 18.2 µg/m³Gyeongju, 23 November: 11.7 µg/m³Gyeongju, 24 November: 7.1 µg/m³KunwiKunwi, 18 November: 7.0 µg/m³Kunwi, 19 November: 7.1 µg/m³Kunwi, 20 November: 19.0 µg/m³Kunwi, 21 November: 26.7 µg/m³, 2.2× its usual 12.3Kunwi, 22 November: 19.0 µg/m³Kunwi, 23 November: 11.9 µg/m³Kunwi, 24 November: 7.4 µg/m³JangseongJangseong, 18 November: 5.0 µg/m³Jangseong, 19 November: 9.4 µg/m³Jangseong, 20 November: 18.8 µg/m³Jangseong, 21 November: 26.4 µg/m³, 2.1× its usual 12.8Jangseong, 22 November: 15.3 µg/m³Jangseong, 23 November: 18.2 µg/m³Jangseong, 24 November: 25.8 µg/m³YeonggwangYeonggwang, 18 November: 1.8 µg/m³Yeonggwang, 19 November: 14.6 µg/m³Yeonggwang, 20 November: 20.2 µg/m³Yeonggwang, 21 November: 26.0 µg/m³, 2.0× its usual 12.8Yeonggwang, 22 November: 12.4 µg/m³Yeonggwang, 23 November: 20.8 µg/m³Yeonggwang, 24 November: 33.4 µg/m³Donghae CityDonghae City, 18 November: 11.0 µg/m³Donghae City, 19 November: 8.9 µg/m³Donghae City, 20 November: 14.9 µg/m³Donghae City, 21 November: 25.5 µg/m³, 2.0× its usual 12.5Donghae City, 22 November: 20.3 µg/m³Donghae City, 23 November: 8.7 µg/m³Donghae City, 24 November: 10.4 µg/m³18 Nov192021222324
Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

Every city it reached

CityDaysHighestUsualAbove usual
Yangp'yŏngGyeonggi-do, South Korea1 46.221 November17.12.7×
WabuGyeonggi-do, South Korea1 37.321 November14.32.6×
HwacheonGangwon-do, South Korea1 29.821 November11.62.6×
NajuJeollanam-do, South Korea1 34.821 November14.02.5×
GapyeongGyeonggi-do, South Korea1 27.221 November11.52.4×
AnseongGyeonggi-do, South Korea1 45.121 November20.02.3×
Bucheon-siGyeonggi-do, South Korea1 38.721 November17.22.3×
CheorwonGangwon-do, South Korea1 37.421 November16.52.3×
EisenGyeongsangbuk-do, South Korea1 33.921 November14.82.3×
Hongch’ŏnGangwon-do, South Korea1 33.921 November14.62.3×
NamsaJeollabuk-do, South Korea1 37.021 November16.82.2×
Seongnam-siGyeonggi-do, South Korea1 36.421 November16.22.2×
YeonilGyeongsangbuk-do, South Korea1 33.421 November15.52.2×
ChangsuJeollabuk-do, South Korea1 33.321 November15.02.2×
GangneungGangwon-do, South Korea1 29.221 November13.22.2×
NeietsuGangwon-do, South Korea1 28.921 November13.42.2×
ChuncheonGangwon-do, South Korea1 28.921 November13.22.2×
GyeongjuGyeongsangbuk-do, South Korea1 26.821 November12.02.2×
KunwiGyeongsangbuk-do, South Korea1 26.721 November12.32.2×
SeonghwanChungcheongnam-do, South Korea1 50.421 November23.52.1×
YeojuGyeonggi-do, South Korea1 46.421 November22.02.1×
OsanGyeonggi-do, South Korea1 38.921 November18.72.1×
KoesanNorth Chungcheong, South Korea1 37.721 November18.32.1×
Anyang-siGyeonggi-do, South Korea1 37.321 November17.52.1×
GwangmyeongGyeonggi-do, South Korea1 36.721 November17.62.1×
Guri-siGyeonggi-do, South Korea1 35.021 November16.92.1×
MungyeongGyeongsangbuk-do, South Korea1 32.021 November14.92.1×
TongyeongGyeongsangnam-do, South Korea1 27.421 November13.32.1×
JangseongJeollanam-do, South Korea1 26.421 November12.82.1×
Icheon-siGyeonggi-do, South Korea1 41.721 November20.52.0×
Ansan-siGyeonggi-do, South Korea1 38.821 November19.02.0×
CheonanChungcheongnam-do, South Korea1 37.521 November18.52.0×
Uijeongbu-siGyeonggi-do, South Korea1 35.321 November17.32.0×
MunsanGyeonggi-do, South Korea1 34.621 November17.22.0×
BuyeoChungcheongnam-do, South Korea1 31.421 November15.72.0×
GwangjuGwangju, South Korea1 30.921 November15.12.0×
SantyokuGangwon-do, South Korea1 27.421 November13.72.0×
YeonggwangJeollanam-do, South Korea1 26.021 November12.82.0×
Donghae CityGangwon-do, South Korea1 25.521 November12.52.0×

Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.

Against other episodes in South Korea

Number 32 of 63 episodes in South Korea since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 63.

Use this page

SmogRank, South Korea, 21 November 2024: 39 cities with PM2.5 at twice their usual or more, 21 November 2024, smogrank.com/episodes/2024-11-21-south-korea (accessed 4 October 2026).

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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.