SmogRank / Episodes / South Korea

South Korea and Japan, November 2025

For 5 days, from 23 to 27 November 2025, 128 cities in South Korea and Japan had PM2.5 at least twice their usual for the time of year. The worst reading was Goyang-si, Gyeonggi-do, South Korea: 66.1 µg/m³ on 25 November, about 3.8× its usual 17.5.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached128in 2 countries
Days523 to 27 November 2025
Worst day25 November117 cities counted
Furthest above usual4.7×Sokcho

Day by day

25 November 117 cities at twice their usual or more
OkcheonChinjuHadongGwangyangGoseongBeolgyoBuyeoTongyeongKosongIkiMatsuuraKaratsuSaseboImarichō-kōItoshimaMaebaru-chūōSaikaiKogaTakuTakeoMunakataFukuokaUreshinomachi-shimojukuKogaHigashigōWakasugiKasugaKashimaNakamaSagaŌmuraKanzakimachi-kanzakiNōgataIizukaKitakyushuTosuShimonosekiOgōriYanagawaIsahayaTagawaNagatoChikugoKandaTanushimarumachi-toyokiMineYukuhashiŌmutaUkihaYameOnodaAraoHagiUbeTamanaBuzenHitaYamaguchiNakatsuUekimachi-mōnoKikuchiHōfuŌzuMasudaAsoShūnanHamadaYufuKudamatsuBeppuKunisakiGōtsuchōHikariŌitaTsurusakiYanaiŌtakeMieIwakuniŌdachō-ōdaUsukiHiroshimaGionYaeTsukumiuraSaikiIzumoKureHigashihiroshimaYawatahamaIyoMatsuyamaUwajimaNaesŏJungpyongChangnyeongGimcheonChangwonPubalHwasunUngsangGaigeturiNajuWaegwanJeongeupIksanKimjeBoseongYangsanSinhyeonKimhaeJeju CityMiryangDaeguAndongGyeongsan-siHayangMokpoChungjuCheonanNangenWŏnjuNonsanKoesanGumiMuanSeogwipoKunwiUlsanYeonggwangImsilPohangMasanChinch'ŏnYeongjuKwangyangJangseongHwawŏnDamyangWabuKoch'angYeosuCheongsong gunBusanYeonilGwangjuNamsaGunsanGijangBuanGanghwa-gunCheongju-siYesanSeonghwanKuryeYecheonChangsuBoryeongYangp'yŏngWanjuKinzanIcheon-siYeojuGapyeongSuncheonGyeongjuGangneungEisenDaejeonNamyangjuSangjuSejongYŏnmuYeongdongTangjinYeongamJinan-gunMungyeongJeonjuJangheungHongch’ŏnAsanHongseongYangguHwacheonNeietsuGongjuYangjuIncheonHanamGimpo-siPyeongtaekHwadoJumunjinHaenamChuncheonSantyokuSeosanGwangjuMunsanGeojeOsanAnyang-siGuri-siAnsan-siSuwonAnseongSeoulGoyang-siTsushimaSinanDonghae CityHwaseong-siGwangmyeongUijeongbu-siSeongnam-siCheorwonTaesal-liBucheon-siT’aebaekSokcho
20 Nov21222324252627282930
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

HwadoHwado, 20 November: 26.3 µg/m³Hwado, 21 November: 15.0 µg/m³Hwado, 22 November: 27.3 µg/m³Hwado, 23 November: 37.6 µg/m³, 2.0× its usual 18.7Hwado, 24 November: 56.3 µg/m³, 3.0× its usual 19.0Hwado, 25 November: 64.3 µg/m³, 3.4× its usual 19.1Hwado, 26 November: 43.6 µg/m³, 2.3× its usual 19.1Hwado, 27 November: no readingHwado, 28 November: 17.7 µg/m³Hwado, 29 November: 20.5 µg/m³Hwado, 30 November: 35.0 µg/m³AnseongAnseong, 20 November: 28.3 µg/m³Anseong, 21 November: 8.2 µg/m³Anseong, 22 November: 21.7 µg/m³Anseong, 23 November: 33.3 µg/m³, 2.1× its usual 15.5Anseong, 24 November: 52.4 µg/m³, 3.4× its usual 15.5Anseong, 25 November: 61.3 µg/m³, 3.8× its usual 16.1Anseong, 26 November: 38.2 µg/m³, 2.4× its usual 16.1Anseong, 27 November: no readingAnseong, 28 November: 11.6 µg/m³Anseong, 29 November: 15.9 µg/m³Anseong, 30 November: 28.2 µg/m³Uijeongbu-siUijeongbu-si, 20 November: 19.1 µg/m³Uijeongbu-si, 21 November: 9.0 µg/m³Uijeongbu-si, 22 November: 24.9 µg/m³Uijeongbu-si, 23 November: 35.5 µg/m³, 2.3× its usual 15.6Uijeongbu-si, 24 November: 56.8 µg/m³, 3.6× its usual 15.6Uijeongbu-si, 25 November: 61.1 µg/m³, 3.9× its usual 15.8Uijeongbu-si, 26 November: 32.7 µg/m³, 2.1× its usual 15.8Uijeongbu-si, 27 November: 20.1 µg/m³Uijeongbu-si, 28 November: 12.4 µg/m³Uijeongbu-si, 29 November: 14.4 µg/m³Uijeongbu-si, 30 November: 33.8 µg/m³SuwonSuwon, 20 November: 24.1 µg/m³Suwon, 21 November: 9.4 µg/m³Suwon, 22 November: 22.7 µg/m³Suwon, 23 November: 31.6 µg/m³, 2.0× its usual 15.7Suwon, 24 November: 58.4 µg/m³, 3.7× its usual 15.7Suwon, 25 November: 60.5 µg/m³, 3.8× its usual 15.9Suwon, 26 November: 34.6 µg/m³, 2.2× its usual 15.9Suwon, 27 November: 20.9 µg/m³Suwon, 28 November: 12.8 µg/m³Suwon, 29 November: 16.6 µg/m³Suwon, 30 November: 25.5 µg/m³CheorwonCheorwon, 20 November: 22.2 µg/m³Cheorwon, 21 November: 13.4 µg/m³Cheorwon, 22 November: 23.1 µg/m³Cheorwon, 23 November: 38.5 µg/m³, 2.5× its usual 15.1Cheorwon, 24 November: 58.5 µg/m³, 3.9× its usual 15.1Cheorwon, 25 November: 60.4 µg/m³, 4.1× its usual 14.7Cheorwon, 26 November: no readingCheorwon, 27 November: 23.7 µg/m³Cheorwon, 28 November: 16.1 µg/m³Cheorwon, 29 November: 19.6 µg/m³Cheorwon, 30 November: 40.6 µg/m³MunsanMunsan, 20 November: 19.8 µg/m³Munsan, 21 November: 8.2 µg/m³Munsan, 22 November: 22.5 µg/m³Munsan, 23 November: 32.9 µg/m³, 2.0× its usual 16.3Munsan, 24 November: 47.9 µg/m³, 2.9× its usual 16.3Munsan, 25 November: 60.0 µg/m³, 3.6× its usual 16.6Munsan, 26 November: 36.5 µg/m³, 2.2× its usual 16.8Munsan, 27 November: 16.6 µg/m³Munsan, 28 November: 10.8 µg/m³Munsan, 29 November: 15.5 µg/m³Munsan, 30 November: 26.9 µg/m³AsanAsan, 20 November: 31.5 µg/m³Asan, 21 November: 11.0 µg/m³Asan, 22 November: no readingAsan, 23 November: 36.3 µg/m³, 2.1× its usual 17.2Asan, 24 November: 56.4 µg/m³, 3.2× its usual 17.5Asan, 25 November: 59.1 µg/m³, 3.3× its usual 17.7Asan, 26 November: 31.4 µg/m³Asan, 27 November: 23.0 µg/m³Asan, 28 November: 14.9 µg/m³Asan, 29 November: 18.7 µg/m³Asan, 30 November: 32.7 µg/m³Guri-siGuri-si, 20 November: 20.4 µg/m³Guri-si, 21 November: 9.3 µg/m³Guri-si, 22 November: 23.2 µg/m³Guri-si, 23 November: 30.8 µg/m³, 2.0× its usual 15.4Guri-si, 24 November: 53.1 µg/m³, 3.4× its usual 15.4Guri-si, 25 November: 58.8 µg/m³, 3.8× its usual 15.5Guri-si, 26 November: 39.0 µg/m³, 2.4× its usual 16.0Guri-si, 27 November: 21.9 µg/m³Guri-si, 28 November: 12.8 µg/m³Guri-si, 29 November: 14.3 µg/m³Guri-si, 30 November: 29.0 µg/m³GwangjuGwangju, 20 November: 29.5 µg/m³Gwangju, 21 November: 9.8 µg/m³Gwangju, 22 November: 20.5 µg/m³Gwangju, 23 November: 35.1 µg/m³, 2.2× its usual 15.9Gwangju, 24 November: 57.5 µg/m³, 3.6× its usual 15.9Gwangju, 25 November: 57.8 µg/m³, 3.5× its usual 16.5Gwangju, 26 November: 34.9 µg/m³, 2.1× its usual 16.5Gwangju, 27 November: 23.0 µg/m³Gwangju, 28 November: 13.1 µg/m³Gwangju, 29 November: 18.3 µg/m³Gwangju, 30 November: 30.5 µg/m³Seongnam-siSeongnam-si, 20 November: 20.7 µg/m³Seongnam-si, 21 November: 7.8 µg/m³Seongnam-si, 22 November: 19.7 µg/m³Seongnam-si, 23 November: 28.8 µg/m³, 2.2× its usual 13.3Seongnam-si, 24 November: 54.9 µg/m³, 4.1× its usual 13.3Seongnam-si, 25 November: 54.5 µg/m³, 3.8× its usual 14.2Seongnam-si, 26 November: 31.1 µg/m³, 2.2× its usual 14.2Seongnam-si, 27 November: 20.3 µg/m³Seongnam-si, 28 November: 10.7 µg/m³Seongnam-si, 29 November: 14.4 µg/m³Seongnam-si, 30 November: 24.5 µg/m³KinzanKinzan, 20 November: 27.5 µg/m³Kinzan, 21 November: 12.7 µg/m³Kinzan, 22 November: no readingKinzan, 23 November: 37.1 µg/m³, 2.3× its usual 16.4Kinzan, 24 November: no readingKinzan, 25 November: 52.0 µg/m³, 3.0× its usual 17.1Kinzan, 26 November: 31.8 µg/m³Kinzan, 27 November: 25.6 µg/m³Kinzan, 28 November: 10.7 µg/m³Kinzan, 29 November: 19.3 µg/m³Kinzan, 30 November: 29.3 µg/m³Ganghwa-gunGanghwa-gun, 20 November: 25.8 µg/m³Ganghwa-gun, 21 November: 12.3 µg/m³Ganghwa-gun, 22 November: 28.6 µg/m³Ganghwa-gun, 23 November: 35.9 µg/m³, 2.0× its usual 17.8Ganghwa-gun, 24 November: 52.0 µg/m³, 2.9× its usual 17.9Ganghwa-gun, 25 November: 51.3 µg/m³, 2.9× its usual 17.9Ganghwa-gun, 26 November: 29.5 µg/m³Ganghwa-gun, 27 November: 18.0 µg/m³Ganghwa-gun, 28 November: 14.6 µg/m³Ganghwa-gun, 29 November: 17.6 µg/m³Ganghwa-gun, 30 November: 30.3 µg/m³YeongjuYeongju, 20 November: 24.7 µg/m³Yeongju, 21 November: 15.4 µg/m³Yeongju, 22 November: 28.3 µg/m³Yeongju, 23 November: 40.6 µg/m³, 2.2× its usual 18.6Yeongju, 24 November: 24.5 µg/m³Yeongju, 25 November: 49.6 µg/m³, 2.6× its usual 19.0Yeongju, 26 November: 43.7 µg/m³, 2.3× its usual 19.2Yeongju, 27 November: 33.1 µg/m³Yeongju, 28 November: 17.1 µg/m³Yeongju, 29 November: 22.6 µg/m³Yeongju, 30 November: 29.8 µg/m³Yangp'yŏngYangp'yŏng, 20 November: 24.8 µg/m³Yangp'yŏng, 21 November: 8.6 µg/m³Yangp'yŏng, 22 November: 20.2 µg/m³Yangp'yŏng, 23 November: 37.2 µg/m³, 2.3× its usual 16.5Yangp'yŏng, 24 November: 49.4 µg/m³, 3.0× its usual 16.6Yangp'yŏng, 25 November: no readingYangp'yŏng, 26 November: 35.8 µg/m³, 2.0× its usual 17.5Yangp'yŏng, 27 November: 23.2 µg/m³Yangp'yŏng, 28 November: 12.2 µg/m³Yangp'yŏng, 29 November: 16.1 µg/m³Yangp'yŏng, 30 November: 32.8 µg/m³YangjuYangju, 20 November: 19.6 µg/m³Yangju, 21 November: 10.5 µg/m³Yangju, 22 November: 22.7 µg/m³Yangju, 23 November: 35.0 µg/m³, 2.4× its usual 14.3Yangju, 24 November: 48.0 µg/m³, 3.4× its usual 14.3Yangju, 25 November: 45.4 µg/m³, 3.1× its usual 14.8Yangju, 26 November: 38.4 µg/m³, 2.5× its usual 15.4Yangju, 27 November: 24.7 µg/m³Yangju, 28 November: 12.3 µg/m³Yangju, 29 November: 15.6 µg/m³Yangju, 30 November: 28.9 µg/m³NamyangjuNamyangju, 20 November: 21.8 µg/m³Namyangju, 21 November: 10.5 µg/m³Namyangju, 22 November: 21.0 µg/m³Namyangju, 23 November: 32.4 µg/m³, 2.1× its usual 15.3Namyangju, 24 November: 46.8 µg/m³, 3.1× its usual 15.3Namyangju, 25 November: 43.7 µg/m³, 2.8× its usual 15.5Namyangju, 26 November: 41.1 µg/m³, 2.6× its usual 15.6Namyangju, 27 November: 17.6 µg/m³Namyangju, 28 November: 13.3 µg/m³Namyangju, 29 November: 16.1 µg/m³Namyangju, 30 November: 29.5 µg/m³Hongch’ŏnHongch’ŏn, 20 November: no readingHongch’ŏn, 21 November: 7.2 µg/m³Hongch’ŏn, 22 November: 18.2 µg/m³Hongch’ŏn, 23 November: 32.3 µg/m³, 2.3× its usual 14.0Hongch’ŏn, 24 November: 46.1 µg/m³, 3.3× its usual 14.1Hongch’ŏn, 25 November: 38.6 µg/m³, 2.7× its usual 14.1Hongch’ŏn, 26 November: no readingHongch’ŏn, 27 November: no readingHongch’ŏn, 28 November: no readingHongch’ŏn, 29 November: 10.4 µg/m³Hongch’ŏn, 30 November: 32.6 µg/m³Donghae CityDonghae City, 20 November: 26.1 µg/m³Donghae City, 21 November: 9.1 µg/m³Donghae City, 22 November: 16.7 µg/m³Donghae City, 23 November: 26.2 µg/m³, 2.3× its usual 11.5Donghae City, 24 November: 39.5 µg/m³, 3.4× its usual 11.5Donghae City, 25 November: 45.1 µg/m³, 3.9× its usual 11.5Donghae City, 26 November: 22.7 µg/m³Donghae City, 27 November: 17.8 µg/m³Donghae City, 28 November: 9.6 µg/m³Donghae City, 29 November: 13.4 µg/m³Donghae City, 30 November: 25.8 µg/m³GongjuGongju, 20 November: 19.5 µg/m³Gongju, 21 November: 7.0 µg/m³Gongju, 22 November: 16.6 µg/m³Gongju, 23 November: 27.4 µg/m³, 2.1× its usual 13.3Gongju, 24 November: 44.7 µg/m³, 3.4× its usual 13.3Gongju, 25 November: 43.8 µg/m³, 3.2× its usual 13.8Gongju, 26 November: 20.6 µg/m³Gongju, 27 November: 17.5 µg/m³Gongju, 28 November: 8.2 µg/m³Gongju, 29 November: 11.5 µg/m³Gongju, 30 November: 18.8 µg/m³NeietsuNeietsu, 20 November: 21.9 µg/m³Neietsu, 21 November: 9.7 µg/m³Neietsu, 22 November: 18.1 µg/m³Neietsu, 23 November: 26.5 µg/m³, 2.3× its usual 11.7Neietsu, 24 November: 30.1 µg/m³, 2.4× its usual 12.4Neietsu, 25 November: 43.0 µg/m³, 3.4× its usual 12.8Neietsu, 26 November: 29.3 µg/m³, 2.3× its usual 12.9Neietsu, 27 November: 21.5 µg/m³Neietsu, 28 November: 11.6 µg/m³Neietsu, 29 November: 10.9 µg/m³Neietsu, 30 November: 20.4 µg/m³SantyokuSantyoku, 20 November: 18.5 µg/m³Santyoku, 21 November: 9.3 µg/m³Santyoku, 22 November: 15.5 µg/m³Santyoku, 23 November: 27.5 µg/m³, 2.3× its usual 12.2Santyoku, 24 November: 42.5 µg/m³, 3.5× its usual 12.2Santyoku, 25 November: 37.9 µg/m³, 3.1× its usual 12.2Santyoku, 26 November: 23.9 µg/m³Santyoku, 27 November: 17.2 µg/m³Santyoku, 28 November: 8.0 µg/m³Santyoku, 29 November: 10.3 µg/m³Santyoku, 30 November: 26.4 µg/m³Goyang-siGoyang-si, 20 November: 22.4 µg/m³Goyang-si, 21 November: 9.7 µg/m³Goyang-si, 22 November: 28.0 µg/m³Goyang-si, 23 November: 32.9 µg/m³Goyang-si, 24 November: 59.3 µg/m³, 3.4× its usual 17.5Goyang-si, 25 November: 66.1 µg/m³, 3.8× its usual 17.5Goyang-si, 26 November: 33.1 µg/m³Goyang-si, 27 November: 16.4 µg/m³Goyang-si, 28 November: 12.7 µg/m³Goyang-si, 29 November: 14.7 µg/m³Goyang-si, 30 November: 30.7 µg/m³Bucheon-siBucheon-si, 20 November: 21.3 µg/m³Bucheon-si, 21 November: 10.7 µg/m³Bucheon-si, 22 November: 23.3 µg/m³Bucheon-si, 23 November: 28.3 µg/m³Bucheon-si, 24 November: 49.6 µg/m³, 3.4× its usual 14.5Bucheon-si, 25 November: 63.9 µg/m³, 4.3× its usual 14.9Bucheon-si, 26 November: 30.1 µg/m³, 2.0× its usual 14.9Bucheon-si, 27 November: 15.5 µg/m³Bucheon-si, 28 November: 12.4 µg/m³Bucheon-si, 29 November: 14.7 µg/m³Bucheon-si, 30 November: 28.5 µg/m³YeojuYeoju, 20 November: 28.2 µg/m³Yeoju, 21 November: 10.1 µg/m³Yeoju, 22 November: 24.6 µg/m³Yeoju, 23 November: 38.6 µg/m³Yeoju, 24 November: 58.1 µg/m³, 2.8× its usual 21.0Yeoju, 25 November: 63.2 µg/m³, 3.0× its usual 21.0Yeoju, 26 November: no readingYeoju, 27 November: 27.3 µg/m³Yeoju, 28 November: 15.4 µg/m³Yeoju, 29 November: 19.1 µg/m³Yeoju, 30 November: 36.9 µg/m³SeonghwanSeonghwan, 20 November: 31.4 µg/m³Seonghwan, 21 November: no readingSeonghwan, 22 November: no readingSeonghwan, 23 November: 35.7 µg/m³Seonghwan, 24 November: 59.9 µg/m³, 2.8× its usual 21.2Seonghwan, 25 November: 61.9 µg/m³, 2.9× its usual 21.7Seonghwan, 26 November: 43.1 µg/m³Seonghwan, 27 November: 20.7 µg/m³Seonghwan, 28 November: 13.2 µg/m³Seonghwan, 29 November: 20.7 µg/m³Seonghwan, 30 November: 32.0 µg/m³PubalPubal, 20 November: 33.6 µg/m³Pubal, 21 November: 12.1 µg/m³Pubal, 22 November: 29.0 µg/m³Pubal, 23 November: 44.0 µg/m³Pubal, 24 November: 61.5 µg/m³, 2.3× its usual 27.2Pubal, 25 November: 56.5 µg/m³, 2.0× its usual 27.8Pubal, 26 November: 39.5 µg/m³Pubal, 27 November: 30.2 µg/m³Pubal, 28 November: no readingPubal, 29 November: 26.3 µg/m³Pubal, 30 November: no readingSeoulSeoul, 20 November: 21.3 µg/m³Seoul, 21 November: 9.1 µg/m³Seoul, 22 November: 23.0 µg/m³Seoul, 23 November: 31.3 µg/m³Seoul, 24 November: 53.6 µg/m³, 3.4× its usual 15.8Seoul, 25 November: 61.5 µg/m³, 3.8× its usual 16.0Seoul, 26 November: 31.8 µg/m³Seoul, 27 November: 20.8 µg/m³Seoul, 28 November: 12.5 µg/m³Seoul, 29 November: 15.0 µg/m³Seoul, 30 November: 29.0 µg/m³PyeongtaekPyeongtaek, 20 November: 24.8 µg/m³Pyeongtaek, 21 November: 10.5 µg/m³Pyeongtaek, 22 November: 22.3 µg/m³Pyeongtaek, 23 November: 32.5 µg/m³Pyeongtaek, 24 November: 54.4 µg/m³, 3.1× its usual 17.5Pyeongtaek, 25 November: 61.3 µg/m³, 3.4× its usual 18.2Pyeongtaek, 26 November: 37.7 µg/m³, 2.1× its usual 18.2Pyeongtaek, 27 November: 25.1 µg/m³Pyeongtaek, 28 November: 12.3 µg/m³Pyeongtaek, 29 November: 14.7 µg/m³Pyeongtaek, 30 November: 25.8 µg/m³GwangmyeongGwangmyeong, 20 November: 20.8 µg/m³Gwangmyeong, 21 November: 9.6 µg/m³Gwangmyeong, 22 November: 23.1 µg/m³Gwangmyeong, 23 November: 28.2 µg/m³Gwangmyeong, 24 November: 50.6 µg/m³, 3.4× its usual 15.0Gwangmyeong, 25 November: 61.0 µg/m³, 3.9× its usual 15.7Gwangmyeong, 26 November: 32.1 µg/m³, 2.0× its usual 15.7Gwangmyeong, 27 November: 16.8 µg/m³Gwangmyeong, 28 November: 13.7 µg/m³Gwangmyeong, 29 November: 15.6 µg/m³Gwangmyeong, 30 November: 28.4 µg/m³Ansan-siAnsan-si, 20 November: 22.8 µg/m³Ansan-si, 21 November: 8.7 µg/m³Ansan-si, 22 November: 25.3 µg/m³Ansan-si, 23 November: 29.8 µg/m³Ansan-si, 24 November: 59.5 µg/m³, 3.8× its usual 15.7Ansan-si, 25 November: 60.0 µg/m³, 3.8× its usual 15.8Ansan-si, 26 November: 32.9 µg/m³, 2.1× its usual 15.8Ansan-si, 27 November: 17.5 µg/m³Ansan-si, 28 November: 11.8 µg/m³Ansan-si, 29 November: 12.0 µg/m³Ansan-si, 30 November: 25.7 µg/m³HongseongHongseong, 20 November: 24.9 µg/m³Hongseong, 21 November: 10.1 µg/m³Hongseong, 22 November: no readingHongseong, 23 November: 32.7 µg/m³Hongseong, 24 November: 59.3 µg/m³, 3.3× its usual 18.1Hongseong, 25 November: no readingHongseong, 26 November: 19.2 µg/m³Hongseong, 27 November: 18.8 µg/m³Hongseong, 28 November: 10.2 µg/m³Hongseong, 29 November: 13.8 µg/m³Hongseong, 30 November: 22.6 µg/m³Hwaseong-siHwaseong-si, 20 November: 21.2 µg/m³Hwaseong-si, 21 November: 9.8 µg/m³Hwaseong-si, 22 November: 25.4 µg/m³Hwaseong-si, 23 November: 30.3 µg/m³Hwaseong-si, 24 November: 59.2 µg/m³, 3.9× its usual 15.2Hwaseong-si, 25 November: 55.2 µg/m³, 3.6× its usual 15.2Hwaseong-si, 26 November: 35.7 µg/m³, 2.3× its usual 15.2Hwaseong-si, 27 November: 16.8 µg/m³Hwaseong-si, 28 November: 9.9 µg/m³Hwaseong-si, 29 November: 15.9 µg/m³Hwaseong-si, 30 November: 24.7 µg/m³Gimpo-siGimpo-si, 20 November: 22.5 µg/m³Gimpo-si, 21 November: 11.6 µg/m³Gimpo-si, 22 November: 24.8 µg/m³Gimpo-si, 23 November: 27.5 µg/m³Gimpo-si, 24 November: 48.0 µg/m³, 2.8× its usual 17.2Gimpo-si, 25 November: 58.5 µg/m³, 3.4× its usual 17.2Gimpo-si, 26 November: 31.9 µg/m³Gimpo-si, 27 November: 15.6 µg/m³Gimpo-si, 28 November: 14.8 µg/m³Gimpo-si, 29 November: 15.9 µg/m³Gimpo-si, 30 November: 32.1 µg/m³OsanOsan, 20 November: 21.3 µg/m³Osan, 21 November: 9.0 µg/m³Osan, 22 November: 22.6 µg/m³Osan, 23 November: 28.6 µg/m³Osan, 24 November: 53.9 µg/m³, 3.4× its usual 15.7Osan, 25 November: 57.9 µg/m³, 3.7× its usual 15.7Osan, 26 November: 37.6 µg/m³, 2.4× its usual 15.7Osan, 27 November: 18.1 µg/m³Osan, 28 November: 12.5 µg/m³Osan, 29 November: 13.0 µg/m³Osan, 30 November: 26.2 µg/m³Anyang-siAnyang-si, 20 November: 20.5 µg/m³Anyang-si, 21 November: 7.6 µg/m³Anyang-si, 22 November: 22.5 µg/m³Anyang-si, 23 November: 29.0 µg/m³Anyang-si, 24 November: 57.5 µg/m³, 3.8× its usual 15.1Anyang-si, 25 November: 56.6 µg/m³, 3.7× its usual 15.1Anyang-si, 26 November: 30.4 µg/m³, 2.0× its usual 15.1Anyang-si, 27 November: 16.5 µg/m³Anyang-si, 28 November: 12.2 µg/m³Anyang-si, 29 November: 13.4 µg/m³Anyang-si, 30 November: 24.0 µg/m³YesanYesan, 20 November: 25.8 µg/m³Yesan, 21 November: 8.5 µg/m³Yesan, 22 November: no readingYesan, 23 November: 32.0 µg/m³Yesan, 24 November: 55.9 µg/m³, 2.9× its usual 19.5Yesan, 25 November: 51.2 µg/m³, 2.6× its usual 19.5Yesan, 26 November: no readingYesan, 27 November: 18.9 µg/m³Yesan, 28 November: 10.7 µg/m³Yesan, 29 November: 11.8 µg/m³Yesan, 30 November: 26.4 µg/m³Icheon-siIcheon-si, 20 November: 29.1 µg/m³Icheon-si, 21 November: 7.4 µg/m³Icheon-si, 22 November: 20.6 µg/m³Icheon-si, 23 November: 35.0 µg/m³Icheon-si, 24 November: 55.1 µg/m³, 3.1× its usual 17.9Icheon-si, 25 November: 55.9 µg/m³, 3.0× its usual 18.8Icheon-si, 26 November: 32.1 µg/m³Icheon-si, 27 November: 25.9 µg/m³Icheon-si, 28 November: 10.9 µg/m³Icheon-si, 29 November: 20.3 µg/m³Icheon-si, 30 November: 32.1 µg/m³HanamHanam, 20 November: 19.3 µg/m³Hanam, 21 November: 8.5 µg/m³Hanam, 22 November: 20.0 µg/m³Hanam, 23 November: 26.7 µg/m³Hanam, 24 November: 47.3 µg/m³, 3.0× its usual 16.0Hanam, 25 November: 55.5 µg/m³, 3.4× its usual 16.1Hanam, 26 November: 35.8 µg/m³, 2.2× its usual 16.1Hanam, 27 November: 20.2 µg/m³Hanam, 28 November: 12.7 µg/m³Hanam, 29 November: 13.5 µg/m³Hanam, 30 November: 25.6 µg/m³TangjinTangjin, 20 November: 22.4 µg/m³Tangjin, 21 November: 8.0 µg/m³Tangjin, 22 November: no readingTangjin, 23 November: 26.3 µg/m³Tangjin, 24 November: 55.1 µg/m³, 3.1× its usual 17.7Tangjin, 25 November: 48.5 µg/m³, 2.6× its usual 18.9Tangjin, 26 November: 33.7 µg/m³Tangjin, 27 November: 17.9 µg/m³Tangjin, 28 November: 11.5 µg/m³Tangjin, 29 November: 12.7 µg/m³Tangjin, 30 November: 24.4 µg/m³IncheonIncheon, 20 November: 23.2 µg/m³Incheon, 21 November: 10.9 µg/m³Incheon, 22 November: 22.6 µg/m³Incheon, 23 November: 23.9 µg/m³Incheon, 24 November: 49.2 µg/m³, 3.2× its usual 15.5Incheon, 25 November: 54.3 µg/m³, 3.4× its usual 16.0Incheon, 26 November: 31.4 µg/m³Incheon, 27 November: 16.5 µg/m³Incheon, 28 November: 12.4 µg/m³Incheon, 29 November: 12.9 µg/m³Incheon, 30 November: 24.2 µg/m³YŏnmuYŏnmu, 20 November: 24.8 µg/m³Yŏnmu, 21 November: 13.7 µg/m³Yŏnmu, 22 November: 25.2 µg/m³Yŏnmu, 23 November: 31.1 µg/m³Yŏnmu, 24 November: 53.2 µg/m³, 3.1× its usual 17.2Yŏnmu, 25 November: 42.8 µg/m³, 2.4× its usual 17.6Yŏnmu, 26 November: 25.4 µg/m³Yŏnmu, 27 November: 18.1 µg/m³Yŏnmu, 28 November: 7.8 µg/m³Yŏnmu, 29 November: 14.9 µg/m³Yŏnmu, 30 November: 18.8 µg/m³SejongSejong, 20 November: 29.4 µg/m³Sejong, 21 November: 8.7 µg/m³Sejong, 22 November: 19.7 µg/m³Sejong, 23 November: 32.0 µg/m³Sejong, 24 November: 52.8 µg/m³, 3.1× its usual 17.0Sejong, 25 November: 48.0 µg/m³, 2.8× its usual 17.1Sejong, 26 November: 29.0 µg/m³Sejong, 27 November: 20.1 µg/m³Sejong, 28 November: 10.4 µg/m³Sejong, 29 November: 12.6 µg/m³Sejong, 30 November: 22.1 µg/m³Cheongju-siCheongju-si, 20 November: 30.0 µg/m³Cheongju-si, 21 November: 11.6 µg/m³Cheongju-si, 22 November: 20.6 µg/m³Cheongju-si, 23 November: 30.5 µg/m³Cheongju-si, 24 November: 48.3 µg/m³, 2.7× its usual 17.7Cheongju-si, 25 November: 52.6 µg/m³, 2.9× its usual 18.3Cheongju-si, 26 November: 33.5 µg/m³Cheongju-si, 27 November: 22.8 µg/m³Cheongju-si, 28 November: no readingCheongju-si, 29 November: no readingCheongju-si, 30 November: no readingSangjuSangju, 20 November: 25.8 µg/m³Sangju, 21 November: 11.6 µg/m³Sangju, 22 November: 18.9 µg/m³Sangju, 23 November: 28.6 µg/m³Sangju, 24 November: 40.3 µg/m³, 2.4× its usual 16.7Sangju, 25 November: 51.9 µg/m³, 3.1× its usual 16.7Sangju, 26 November: 34.4 µg/m³, 2.1× its usual 16.5Sangju, 27 November: 27.8 µg/m³Sangju, 28 November: 13.5 µg/m³Sangju, 29 November: 21.6 µg/m³Sangju, 30 November: 28.5 µg/m³BuanBuan, 20 November: 18.8 µg/m³Buan, 21 November: 12.3 µg/m³Buan, 22 November: 23.4 µg/m³Buan, 23 November: 32.4 µg/m³Buan, 24 November: 49.4 µg/m³, 2.9× its usual 17.1Buan, 25 November: 39.8 µg/m³, 2.3× its usual 17.2Buan, 26 November: 21.0 µg/m³Buan, 27 November: 16.8 µg/m³Buan, 28 November: 9.6 µg/m³Buan, 29 November: 12.5 µg/m³Buan, 30 November: 18.0 µg/m³Chinch'ŏnChinch'ŏn, 20 November: 26.7 µg/m³Chinch'ŏn, 21 November: 10.0 µg/m³Chinch'ŏn, 22 November: 19.4 µg/m³Chinch'ŏn, 23 November: 28.5 µg/m³Chinch'ŏn, 24 November: 45.6 µg/m³, 2.5× its usual 18.4Chinch'ŏn, 25 November: 49.3 µg/m³, 2.6× its usual 18.7Chinch'ŏn, 26 November: 34.3 µg/m³Chinch'ŏn, 27 November: 22.3 µg/m³Chinch'ŏn, 28 November: no readingChinch'ŏn, 29 November: no readingChinch'ŏn, 30 November: no readingSeosanSeosan, 20 November: 17.1 µg/m³Seosan, 21 November: 5.6 µg/m³Seosan, 22 November: no readingSeosan, 23 November: 19.0 µg/m³Seosan, 24 November: 48.1 µg/m³, 3.5× its usual 13.6Seosan, 25 November: 38.9 µg/m³, 2.9× its usual 13.6Seosan, 26 November: 12.9 µg/m³Seosan, 27 November: 12.2 µg/m³Seosan, 28 November: 4.0 µg/m³Seosan, 29 November: 8.3 µg/m³Seosan, 30 November: 15.8 µg/m³GunsanGunsan, 20 November: 23.2 µg/m³Gunsan, 21 November: 10.4 µg/m³Gunsan, 22 November: 22.5 µg/m³Gunsan, 23 November: 32.5 µg/m³Gunsan, 24 November: 47.8 µg/m³, 2.8× its usual 17.2Gunsan, 25 November: 41.5 µg/m³, 2.4× its usual 17.2Gunsan, 26 November: 23.3 µg/m³Gunsan, 27 November: 18.7 µg/m³Gunsan, 28 November: 11.1 µg/m³Gunsan, 29 November: 13.5 µg/m³Gunsan, 30 November: 17.0 µg/m³Taesal-liTaesal-li, 20 November: 15.1 µg/m³Taesal-li, 21 November: 7.8 µg/m³Taesal-li, 22 November: no readingTaesal-li, 23 November: 19.1 µg/m³Taesal-li, 24 November: 47.3 µg/m³, 4.2× its usual 11.3Taesal-li, 25 November: no readingTaesal-li, 26 November: 11.5 µg/m³Taesal-li, 27 November: 13.7 µg/m³Taesal-li, 28 November: 7.2 µg/m³Taesal-li, 29 November: 7.5 µg/m³Taesal-li, 30 November: 21.5 µg/m³JeonjuJeonju, 20 November: 19.5 µg/m³Jeonju, 21 November: 12.5 µg/m³Jeonju, 22 November: 16.7 µg/m³Jeonju, 23 November: 21.5 µg/m³Jeonju, 24 November: 39.3 µg/m³, 2.8× its usual 13.8Jeonju, 25 November: 46.0 µg/m³, 3.2× its usual 14.4Jeonju, 26 November: 21.1 µg/m³Jeonju, 27 November: 16.5 µg/m³Jeonju, 28 November: 8.2 µg/m³Jeonju, 29 November: 9.0 µg/m³Jeonju, 30 November: 15.1 µg/m³IksanIksan, 20 November: 21.9 µg/m³Iksan, 21 November: 13.3 µg/m³Iksan, 22 November: 24.9 µg/m³Iksan, 23 November: 33.0 µg/m³Iksan, 24 November: 44.6 µg/m³, 2.4× its usual 18.8Iksan, 25 November: 45.0 µg/m³, 2.4× its usual 19.0Iksan, 26 November: 25.8 µg/m³Iksan, 27 November: 17.2 µg/m³Iksan, 28 November: 7.5 µg/m³Iksan, 29 November: 13.8 µg/m³Iksan, 30 November: 19.9 µg/m³MungyeongMungyeong, 20 November: no readingMungyeong, 21 November: 8.8 µg/m³Mungyeong, 22 November: 17.4 µg/m³Mungyeong, 23 November: 26.0 µg/m³Mungyeong, 24 November: 33.0 µg/m³, 2.4× its usual 13.8Mungyeong, 25 November: 44.6 µg/m³, 3.2× its usual 13.9Mungyeong, 26 November: 32.0 µg/m³, 2.3× its usual 13.9Mungyeong, 27 November: 24.9 µg/m³Mungyeong, 28 November: 9.3 µg/m³Mungyeong, 29 November: 14.5 µg/m³Mungyeong, 30 November: 23.5 µg/m³KoesanKoesan, 20 November: 25.0 µg/m³Koesan, 21 November: 13.2 µg/m³Koesan, 22 November: 23.4 µg/m³Koesan, 23 November: 29.0 µg/m³Koesan, 24 November: 39.5 µg/m³, 2.3× its usual 17.5Koesan, 25 November: 43.4 µg/m³, 2.5× its usual 17.7Koesan, 26 November: 33.4 µg/m³Koesan, 27 November: 20.6 µg/m³Koesan, 28 November: 14.0 µg/m³Koesan, 29 November: 13.7 µg/m³Koesan, 30 November: 25.2 µg/m³NamsaNamsa, 20 November: 17.7 µg/m³Namsa, 21 November: 8.9 µg/m³Namsa, 22 November: 18.2 µg/m³Namsa, 23 November: 26.4 µg/m³Namsa, 24 November: 39.2 µg/m³, 2.5× its usual 15.7Namsa, 25 November: 43.3 µg/m³, 2.8× its usual 15.7Namsa, 26 November: 24.1 µg/m³Namsa, 27 November: 17.0 µg/m³Namsa, 28 November: 10.2 µg/m³Namsa, 29 November: 9.1 µg/m³Namsa, 30 November: 19.5 µg/m³MasanMasan, 20 November: 25.4 µg/m³Masan, 21 November: 16.1 µg/m³Masan, 22 November: 20.7 µg/m³Masan, 23 November: 28.7 µg/m³Masan, 24 November: 39.6 µg/m³, 2.4× its usual 16.5Masan, 25 November: 42.3 µg/m³, 2.6× its usual 16.5Masan, 26 November: 14.3 µg/m³Masan, 27 November: 21.5 µg/m³Masan, 28 November: 10.0 µg/m³Masan, 29 November: 14.1 µg/m³Masan, 30 November: 16.3 µg/m³YeongdongYeongdong, 20 November: 35.9 µg/m³Yeongdong, 21 November: 10.4 µg/m³Yeongdong, 22 November: 26.0 µg/m³Yeongdong, 23 November: 25.2 µg/m³Yeongdong, 24 November: 33.7 µg/m³Yeongdong, 25 November: 55.0 µg/m³, 3.1× its usual 18.0Yeongdong, 26 November: 41.6 µg/m³, 2.3× its usual 17.8Yeongdong, 27 November: 24.3 µg/m³Yeongdong, 28 November: no readingYeongdong, 29 November: no readingYeongdong, 30 November: no readingKimjeKimje, 20 November: 24.9 µg/m³Kimje, 21 November: 15.9 µg/m³Kimje, 22 November: 28.4 µg/m³Kimje, 23 November: 36.3 µg/m³Kimje, 24 November: no readingKimje, 25 November: 51.4 µg/m³, 2.4× its usual 21.5Kimje, 26 November: 28.8 µg/m³Kimje, 27 November: 20.9 µg/m³Kimje, 28 November: 12.7 µg/m³Kimje, 29 November: 15.5 µg/m³Kimje, 30 November: 21.4 µg/m³GumiGumi, 20 November: 21.6 µg/m³Gumi, 21 November: 15.2 µg/m³Gumi, 22 November: 22.0 µg/m³Gumi, 23 November: 33.3 µg/m³Gumi, 24 November: 33.6 µg/m³Gumi, 25 November: 50.4 µg/m³, 2.5× its usual 20.5Gumi, 26 November: 38.3 µg/m³Gumi, 27 November: 30.8 µg/m³Gumi, 28 November: 12.5 µg/m³Gumi, 29 November: 20.9 µg/m³Gumi, 30 November: 28.5 µg/m³WanjuWanju, 20 November: 22.6 µg/m³Wanju, 21 November: 14.1 µg/m³Wanju, 22 November: 22.7 µg/m³Wanju, 23 November: 28.1 µg/m³Wanju, 24 November: no readingWanju, 25 November: 49.5 µg/m³, 3.0× its usual 16.4Wanju, 26 November: 24.7 µg/m³Wanju, 27 November: 16.8 µg/m³Wanju, 28 November: 8.5 µg/m³Wanju, 29 November: 9.7 µg/m³Wanju, 30 November: 18.3 µg/m³BoryeongBoryeong, 20 November: 21.0 µg/m³Boryeong, 21 November: 10.2 µg/m³Boryeong, 22 November: no readingBoryeong, 23 November: 25.0 µg/m³Boryeong, 24 November: no readingBoryeong, 25 November: 46.3 µg/m³, 3.0× its usual 15.6Boryeong, 26 November: 22.2 µg/m³Boryeong, 27 November: 18.0 µg/m³Boryeong, 28 November: 10.0 µg/m³Boryeong, 29 November: 10.9 µg/m³Boryeong, 30 November: 18.5 µg/m³20 Nov2224262830
The 60 cities with the highest readings of 128, 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
SokchoGangwon-do, South Korea3 36.324 November7.74.7×
T’aebaekGangwon-do, South Korea2 39.824 November8.84.5×
Bucheon-siGyeonggi-do, South Korea3 63.925 November14.94.3×
Taesal-liChungcheongnam-do, South Korea1 47.324 November11.34.2×
CheorwonGangwon-do, South Korea3 60.425 November14.74.1×
Seongnam-siGyeonggi-do, South Korea4 54.924 November13.34.1×
Uijeongbu-siGyeonggi-do, South Korea4 61.125 November15.83.9×
GwangmyeongGyeonggi-do, South Korea3 61.025 November15.73.9×
Hwaseong-siGyeonggi-do, South Korea3 59.224 November15.23.9×
Donghae CityGangwon-do, South Korea3 45.125 November11.53.9×
SinanJeollanam-do, South Korea2 36.825 November9.53.9×
TsushimaNagasaki, Japan1 26.225 November6.83.9×
Goyang-siGyeonggi-do, South Korea2 66.125 November17.53.8×
SeoulSeoul, South Korea2 61.525 November16.03.8×
AnseongGyeonggi-do, South Korea4 61.325 November16.13.8×
SuwonGyeonggi-do, South Korea4 60.525 November15.93.8×
Ansan-siGyeonggi-do, South Korea3 60.025 November15.83.8×
Guri-siGyeonggi-do, South Korea4 58.825 November15.53.8×
Anyang-siGyeonggi-do, South Korea3 57.524 November15.13.8×
OsanGyeonggi-do, South Korea3 57.925 November15.73.7×
GeojeGyeongsangnam-do, South Korea1 38.725 November10.53.7×
MunsanGyeonggi-do, South Korea4 60.025 November16.63.6×
GwangjuGyeonggi-do, South Korea4 57.825 November16.53.5×
SeosanChungcheongnam-do, South Korea2 48.124 November13.63.5×
SantyokuGangwon-do, South Korea3 42.524 November12.23.5×
ChuncheonGangwon-do, South Korea4 42.225 November12.13.5×
HaenamJeollanam-do, South Korea2 36.325 November10.43.5×
JumunjinGangwon-do, South Korea2 32.724 November9.33.5×
HwadoGyeonggi-do, South Korea4 64.325 November19.13.4×
PyeongtaekGyeonggi-do, South Korea3 61.325 November18.23.4×
Gimpo-siGyeonggi-do, South Korea2 58.525 November17.23.4×
HanamGyeonggi-do, South Korea3 55.525 November16.13.4×
IncheonIncheon, South Korea2 54.325 November16.03.4×
YangjuGyeonggi-do, South Korea4 48.024 November14.33.4×
GongjuChungcheongnam-do, South Korea3 44.724 November13.33.4×
NeietsuGangwon-do, South Korea4 43.025 November12.83.4×
HwacheonGangwon-do, South Korea3 38.225 November11.13.4×
YangguGangwon-do, South Korea1 34.424 November10.23.4×
HongseongChungcheongnam-do, South Korea1 59.324 November18.13.3×
AsanChungcheongnam-do, South Korea3 59.125 November17.73.3×
Hongch’ŏnGangwon-do, South Korea3 46.124 November14.13.3×
JangheungJeollanam-do, South Korea1 31.425 November9.43.3×
JeonjuJeollabuk-do, South Korea2 46.025 November14.43.2×
MungyeongGyeongsangbuk-do, South Korea3 44.625 November13.93.2×
Jinan-gunJeollabuk-do, South Korea2 38.124 November12.03.2×
YeongamJeollanam-do, South Korea2 36.024 November11.13.2×
TangjinChungcheongnam-do, South Korea2 55.124 November17.73.1×
YeongdongNorth Chungcheong, South Korea2 55.025 November18.03.1×
YŏnmuChungcheongnam-do, South Korea2 53.224 November17.23.1×
SejongSejong-si, South Korea2 52.824 November17.03.1×
SangjuGyeongsangbuk-do, South Korea3 51.925 November16.73.1×
NamyangjuGyeonggi-do, South Korea4 46.824 November15.33.1×
DaejeonDaejeon, South Korea2 42.225 November13.73.1×
EisenGyeongsangbuk-do, South Korea3 40.726 November13.33.1×
GangneungGangwon-do, South Korea2 39.125 November12.83.1×
GyeongjuGyeongsangbuk-do, South Korea3 36.126 November11.53.1×
SuncheonJeollanam-do, South Korea1 35.325 November11.33.1×
GapyeongGyeonggi-do, South Korea1 34.826 November11.13.1×
YeojuGyeonggi-do, South Korea2 63.225 November21.03.0×
Icheon-siGyeonggi-do, South Korea2 55.925 November18.83.0×
KinzanChungcheongnam-do, South Korea2 52.025 November17.13.0×
WanjuJeollabuk-do, South Korea1 49.525 November16.43.0×
Yangp'yŏngGyeonggi-do, South Korea3 49.424 November16.63.0×
BoryeongChungcheongnam-do, South Korea1 46.325 November15.63.0×
ChangsuJeollabuk-do, South Korea3 41.325 November13.93.0×
YecheonGyeongsangbuk-do, South Korea4 39.325 November13.03.0×
KuryeJeollanam-do, South Korea1 27.825 November9.43.0×
SeonghwanChungcheongnam-do, South Korea2 61.925 November21.72.9×
YesanChungcheongnam-do, South Korea2 55.924 November19.52.9×
Cheongju-siNorth Chungcheong, South Korea2 52.625 November18.32.9×
Ganghwa-gunIncheon, South Korea3 52.024 November17.92.9×
BuanJeollabuk-do, South Korea2 49.424 November17.12.9×
GijangBusan, South Korea2 34.725 November11.82.9×
GunsanJeollabuk-do, South Korea2 47.824 November17.22.8×
NamsaJeollabuk-do, South Korea2 43.325 November15.72.8×
GwangjuGwangju, South Korea2 41.325 November14.72.8×
YeonilGyeongsangbuk-do, South Korea4 40.326 November14.42.8×
BusanBusan, South Korea2 36.125 November12.92.8×
Cheongsong gunGyeongsangbuk-do, South Korea2 31.926 November11.22.8×
YeosuJeollanam-do, South Korea1 30.025 November10.72.8×
Koch'angJeollabuk-do, South Korea2 37.425 November13.82.7×
WabuGyeonggi-do, South Korea2 37.226 November14.02.7×
DamyangJeollanam-do, South Korea2 37.025 November13.92.7×
HwawŏnDaegu, South Korea3 35.725 November13.22.7×
JangseongJeollanam-do, South Korea2 33.225 November12.42.7×
KwangyangJeollanam-do, South Korea1 31.025 November11.42.7×
YeongjuGyeongsangbuk-do, South Korea3 49.625 November19.02.6×
Chinch'ŏnNorth Chungcheong, South Korea2 49.325 November18.72.6×
MasanGwangju, South Korea2 42.325 November16.52.6×
PohangGyeongsangbuk-do, South Korea2 41.525 November15.92.6×
ImsilJeollabuk-do, South Korea2 34.825 November13.62.6×
YeonggwangJeollanam-do, South Korea2 34.325 November13.02.6×
UlsanUlsan, South Korea2 32.526 November12.62.6×
KunwiGyeongsangbuk-do, South Korea2 30.825 November11.92.6×
SeogwipoJeju-do, South Korea2 30.825 November11.92.6×
MuanJeollanam-do, South Korea2 29.624 November11.32.6×
GumiGyeongsangbuk-do, South Korea1 50.425 November20.52.5×
KoesanNorth Chungcheong, South Korea2 43.425 November17.72.5×
NonsanChungcheongnam-do, South Korea2 42.024 November17.12.5×
WŏnjuGangwon-do, South Korea3 41.525 November16.92.5×
NangenJeollabuk-do, South Korea2 41.525 November16.72.5×
CheonanChungcheongnam-do, South Korea2 41.525 November16.82.5×
ChungjuNorth Chungcheong, South Korea3 41.125 November16.52.5×
MokpoJeollanam-do, South Korea2 39.925 November15.82.5×
HayangGyeongsangbuk-do, South Korea3 39.525 November16.12.5×
Gyeongsan-siGyeongsangbuk-do, South Korea3 38.326 November15.62.5×
AndongGyeongsangbuk-do, South Korea2 37.925 November15.22.5×
DaeguDaegu, South Korea4 36.025 November14.52.5×
MiryangGyeongsangnam-do, South Korea4 32.826 November13.12.5×
Jeju CityJeju-do, South Korea2 31.625 November12.42.5×
KimhaeGyeongsangnam-do, South Korea2 30.826 November12.52.5×
SinhyeonGyeongsangnam-do, South Korea2 30.525 November12.42.5×
YangsanGyeongsangnam-do, South Korea2 30.026 November12.02.5×
BoseongJeollanam-do, South Korea2 29.825 November12.12.5×
KimjeJeollabuk-do, South Korea1 51.425 November21.52.4×
IksanJeollabuk-do, South Korea2 45.025 November19.02.4×
JeongeupJeollabuk-do, South Korea1 39.224 November16.12.4×
WaegwanGyeongsangbuk-do, South Korea2 38.225 November16.12.4×
NajuJeollanam-do, South Korea2 36.825 November15.12.4×
GaigeturiJeju-do, South Korea2 28.125 November11.82.4×
UngsangGyeongsangnam-do, South Korea2 27.626 November11.42.4×
HwasunJeollanam-do, South Korea1 27.525 November11.62.4×
PubalGyeonggi-do, South Korea2 61.524 November27.22.3×
ChangwonGyeongsangnam-do, South Korea2 29.325 November12.52.3×
GimcheonGyeongsangbuk-do, South Korea1 41.025 November19.02.2×
ChangnyeongGyeongsangnam-do, South Korea2 29.926 November13.42.2×
JungpyongNorth Chungcheong, South Korea1 36.124 November17.42.1×
NaesŏGyeongsangnam-do, South Korea1 28.225 November14.12.0×

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 and Japan

Number 12 of 94 episodes in South Korea and Japan since our records began, by cities reached.

Bars: cities reached; colour: the level of the episode's highest daily reading. All 94.

Use this page

SmogRank, South Korea and Japan, November 2025: 128 cities with PM2.5 at twice their usual or more, 23 to 27 November 2025, smogrank.com/episodes/2025-11-south-korea-and-japan (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.