SmogRank / Episodes / South Korea

South Korea, 5 to 7 November 2025

For 3 days, from 5 to 7 November 2025, 78 cities in South Korea had PM2.5 at least twice their usual for the time of year. The worst reading was Gunsan, Jeollabuk-do, South Korea: 74.2 µg/m³ on 7 November, about 4.2× its usual 17.8.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached78in 1 country
Days35 to 7 November 2025
Worst day6 November71 cities counted
Furthest above usual4.6×Taesal-li

Day by day

6 November 71 cities at twice their usual or more
KoesanSangjuGimcheonJinan-gunBuyeoGumiChangsuWaegwanYecheonYeojuKunwiWŏnjuYeongjuAndongYangp'yŏngNeietsuKuryeHanamWabuChinjuHongch’ŏnHadongEisenKwangyangCheongsong gunMiryangNaesŏGapyeongSuncheonGwangyangHwasunChuncheonT’aebaekBeolgyoGoseongYeosuGyeongjuKimhaeHwacheonYeonilTongyeongYangsanYangguPohangUngsangGangneungJangheungDonghae CityUlsanBusanGeojeJumunjinGijangSokchoKosongTsushimaNagatoShimonosekiMineHagiOnodaUbeYamaguchiMasudaHōfuHamadaShūnanGōtsuchōKudamatsuHikariŌdachō-ōdaŌtakeYanaiIwakuniYaeHiroshimaGionKureNangenJungpyongGanghwa-gunHwawŏnBoseongNamyangjuCheorwonHayangGyeongsan-siYeongdongPubalNajuChangnyeongJangseongDaeguYangjuChungjuGwangjuHwadoKinzanIcheon-siMasanChinch'ŏnMungyeongGuri-siSeoulMunsanChangwonImsilGwangjuAnyang-siUijeongbu-siOsanOkcheonSinhyeonSantyokuYeongamSeongnam-siDamyangMokpoGimpo-siHaenamSuwonGwangmyeongAnsan-siCheonanJeongeupSeonghwanMuanJeonjuBucheon-siIncheonGoyang-siDaejeonNonsanPyeongtaekWanjuCheongju-siTangjinYesanGongjuNamsaKimjeKoch'angAsanHongseongHwaseong-siYeonggwangIksanYŏnmuSinanSeosanAnseongSejongGunsanBuanBoryeongTaesal-li
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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

GunsanGunsan, 2 November: 10.7 µg/m³Gunsan, 3 November: 14.0 µg/m³Gunsan, 4 November: 20.9 µg/m³Gunsan, 5 November: 49.8 µg/m³, 2.9× its usual 17.2Gunsan, 6 November: 51.8 µg/m³, 2.9× its usual 17.8Gunsan, 7 November: 74.2 µg/m³, 4.2× its usual 17.8Gunsan, 8 November: 29.7 µg/m³Gunsan, 9 November: 27.5 µg/m³Gunsan, 10 November: 7.8 µg/m³BuanBuan, 2 November: 6.8 µg/m³Buan, 3 November: 11.5 µg/m³Buan, 4 November: 23.4 µg/m³Buan, 5 November: 48.9 µg/m³, 2.9× its usual 16.7Buan, 6 November: 53.2 µg/m³, 3.2× its usual 16.8Buan, 7 November: 72.9 µg/m³, 4.4× its usual 16.7Buan, 8 November: 38.9 µg/m³Buan, 9 November: 23.8 µg/m³Buan, 10 November: 7.5 µg/m³BoryeongBoryeong, 2 November: 8.6 µg/m³Boryeong, 3 November: 13.5 µg/m³Boryeong, 4 November: 16.8 µg/m³Boryeong, 5 November: 43.9 µg/m³, 3.0× its usual 14.6Boryeong, 6 November: 45.8 µg/m³, 3.1× its usual 14.6Boryeong, 7 November: 65.1 µg/m³, 4.5× its usual 14.6Boryeong, 8 November: 19.8 µg/m³Boryeong, 9 November: 28.5 µg/m³Boryeong, 10 November: 8.1 µg/m³IksanIksan, 2 November: 10.8 µg/m³Iksan, 3 November: 12.2 µg/m³Iksan, 4 November: 21.2 µg/m³Iksan, 5 November: 43.2 µg/m³, 2.3× its usual 18.5Iksan, 6 November: 53.8 µg/m³, 2.9× its usual 18.5Iksan, 7 November: 59.2 µg/m³, 3.3× its usual 18.0Iksan, 8 November: 31.4 µg/m³Iksan, 9 November: 24.3 µg/m³Iksan, 10 November: 7.9 µg/m³KimjeKimje, 2 November: 11.5 µg/m³Kimje, 3 November: 17.8 µg/m³Kimje, 4 November: 26.7 µg/m³Kimje, 5 November: 46.5 µg/m³, 2.4× its usual 19.6Kimje, 6 November: 57.1 µg/m³, 2.8× its usual 20.4Kimje, 7 November: 57.9 µg/m³, 3.0× its usual 19.6Kimje, 8 November: 34.3 µg/m³Kimje, 9 November: 27.9 µg/m³Kimje, 10 November: 11.6 µg/m³SejongSejong, 2 November: 8.4 µg/m³Sejong, 3 November: 13.3 µg/m³Sejong, 4 November: 22.3 µg/m³Sejong, 5 November: 43.4 µg/m³, 3.2× its usual 13.7Sejong, 6 November: 57.8 µg/m³, 4.0× its usual 14.5Sejong, 7 November: 46.5 µg/m³, 3.4× its usual 13.7Sejong, 8 November: 20.6 µg/m³Sejong, 9 November: 24.0 µg/m³Sejong, 10 November: 7.0 µg/m³Taesal-liTaesal-li, 2 November: 10.9 µg/m³Taesal-li, 3 November: 15.0 µg/m³Taesal-li, 4 November: 16.4 µg/m³Taesal-li, 5 November: 32.7 µg/m³, 2.7× its usual 11.9Taesal-li, 6 November: 35.5 µg/m³, 3.0× its usual 12.0Taesal-li, 7 November: 55.0 µg/m³, 4.6× its usual 12.0Taesal-li, 8 November: 20.6 µg/m³Taesal-li, 9 November: 26.3 µg/m³Taesal-li, 10 November: 6.6 µg/m³YŏnmuYŏnmu, 2 November: 11.5 µg/m³Yŏnmu, 3 November: 11.6 µg/m³Yŏnmu, 4 November: 18.9 µg/m³Yŏnmu, 5 November: 41.3 µg/m³, 2.7× its usual 15.3Yŏnmu, 6 November: 46.1 µg/m³, 3.0× its usual 15.4Yŏnmu, 7 November: 54.3 µg/m³, 3.5× its usual 15.3Yŏnmu, 8 November: 29.8 µg/m³Yŏnmu, 9 November: 24.4 µg/m³Yŏnmu, 10 November: 6.2 µg/m³SeonghwanSeonghwan, 2 November: 10.8 µg/m³Seonghwan, 3 November: 17.7 µg/m³Seonghwan, 4 November: 33.8 µg/m³Seonghwan, 5 November: 51.2 µg/m³, 2.4× its usual 20.9Seonghwan, 6 November: 53.9 µg/m³, 2.6× its usual 20.9Seonghwan, 7 November: 52.8 µg/m³, 2.6× its usual 20.7Seonghwan, 8 November: 27.4 µg/m³Seonghwan, 9 November: 30.3 µg/m³Seonghwan, 10 November: 8.0 µg/m³YesanYesan, 2 November: 9.0 µg/m³Yesan, 3 November: 15.0 µg/m³Yesan, 4 November: 26.4 µg/m³Yesan, 5 November: 41.4 µg/m³, 2.4× its usual 16.9Yesan, 6 November: 50.8 µg/m³, 2.7× its usual 18.5Yesan, 7 November: 53.1 µg/m³, 2.9× its usual 18.5Yesan, 8 November: 35.3 µg/m³Yesan, 9 November: 28.8 µg/m³Yesan, 10 November: 7.7 µg/m³HongseongHongseong, 2 November: 8.1 µg/m³Hongseong, 3 November: 13.4 µg/m³Hongseong, 4 November: 22.4 µg/m³Hongseong, 5 November: 44.2 µg/m³, 2.7× its usual 16.6Hongseong, 6 November: 44.8 µg/m³, 2.7× its usual 16.9Hongseong, 7 November: 53.0 µg/m³, 3.1× its usual 16.9Hongseong, 8 November: 31.2 µg/m³Hongseong, 9 November: 28.5 µg/m³Hongseong, 10 November: 5.9 µg/m³AsanAsan, 2 November: 12.0 µg/m³Asan, 3 November: 14.9 µg/m³Asan, 4 November: 31.1 µg/m³Asan, 5 November: 45.3 µg/m³, 2.7× its usual 16.6Asan, 6 November: 52.2 µg/m³, 3.1× its usual 17.0Asan, 7 November: 45.8 µg/m³, 2.8× its usual 16.6Asan, 8 November: 23.1 µg/m³Asan, 9 November: 27.1 µg/m³Asan, 10 November: 6.4 µg/m³AnseongAnseong, 2 November: 7.0 µg/m³Anseong, 3 November: 10.8 µg/m³Anseong, 4 November: 22.3 µg/m³Anseong, 5 November: 41.8 µg/m³, 3.3× its usual 12.8Anseong, 6 November: 47.2 µg/m³, 3.7× its usual 12.9Anseong, 7 November: 42.2 µg/m³, 3.3× its usual 12.7Anseong, 8 November: 24.3 µg/m³Anseong, 9 November: 19.5 µg/m³Anseong, 10 November: 5.5 µg/m³Cheongju-siCheongju-si, 2 November: 12.0 µg/m³Cheongju-si, 3 November: 16.0 µg/m³Cheongju-si, 4 November: 21.8 µg/m³Cheongju-si, 5 November: 39.5 µg/m³, 2.5× its usual 15.9Cheongju-si, 6 November: 46.7 µg/m³, 2.9× its usual 15.9Cheongju-si, 7 November: 40.0 µg/m³, 2.5× its usual 15.9Cheongju-si, 8 November: 19.9 µg/m³Cheongju-si, 9 November: 26.8 µg/m³Cheongju-si, 10 November: 9.3 µg/m³WanjuWanju, 2 November: 12.4 µg/m³Wanju, 3 November: 13.8 µg/m³Wanju, 4 November: 20.7 µg/m³Wanju, 5 November: 36.4 µg/m³, 2.2× its usual 16.3Wanju, 6 November: 44.8 µg/m³, 2.7× its usual 16.3Wanju, 7 November: 46.0 µg/m³, 2.9× its usual 16.0Wanju, 8 November: 26.9 µg/m³Wanju, 9 November: 24.3 µg/m³Wanju, 10 November: 11.6 µg/m³SeosanSeosan, 2 November: 6.4 µg/m³Seosan, 3 November: 13.5 µg/m³Seosan, 4 November: 16.5 µg/m³Seosan, 5 November: 26.2 µg/m³, 2.1× its usual 12.2Seosan, 6 November: 29.3 µg/m³, 2.4× its usual 12.3Seosan, 7 November: 45.9 µg/m³, 3.7× its usual 12.5Seosan, 8 November: 22.2 µg/m³Seosan, 9 November: 22.2 µg/m³Seosan, 10 November: 5.5 µg/m³Koch'angKoch'ang, 2 November: 7.6 µg/m³Koch'ang, 3 November: 10.5 µg/m³Koch'ang, 4 November: 16.5 µg/m³Koch'ang, 5 November: 28.0 µg/m³, 2.0× its usual 14.0Koch'ang, 6 November: 43.8 µg/m³, 3.1× its usual 14.0Koch'ang, 7 November: 34.0 µg/m³, 2.5× its usual 13.8Koch'ang, 8 November: 20.8 µg/m³Koch'ang, 9 November: 20.5 µg/m³Koch'ang, 10 November: 5.6 µg/m³PyeongtaekPyeongtaek, 2 November: 8.6 µg/m³Pyeongtaek, 3 November: 12.6 µg/m³Pyeongtaek, 4 November: 23.5 µg/m³Pyeongtaek, 5 November: 35.1 µg/m³, 2.4× its usual 14.7Pyeongtaek, 6 November: 43.5 µg/m³, 2.9× its usual 14.9Pyeongtaek, 7 November: 43.1 µg/m³, 2.9× its usual 14.7Pyeongtaek, 8 November: 25.2 µg/m³Pyeongtaek, 9 November: 25.2 µg/m³Pyeongtaek, 10 November: 6.4 µg/m³NonsanNonsan, 2 November: 8.8 µg/m³Nonsan, 3 November: 12.6 µg/m³Nonsan, 4 November: 19.3 µg/m³Nonsan, 5 November: 39.8 µg/m³, 2.7× its usual 14.6Nonsan, 6 November: 39.5 µg/m³, 2.7× its usual 14.7Nonsan, 7 November: 42.0 µg/m³, 2.9× its usual 14.6Nonsan, 8 November: 17.0 µg/m³Nonsan, 9 November: 20.4 µg/m³Nonsan, 10 November: 7.4 µg/m³CheonanCheonan, 2 November: 9.9 µg/m³Cheonan, 3 November: 13.2 µg/m³Cheonan, 4 November: 23.9 µg/m³Cheonan, 5 November: 36.4 µg/m³, 2.3× its usual 15.5Cheonan, 6 November: 40.3 µg/m³, 2.6× its usual 15.7Cheonan, 7 November: 32.5 µg/m³, 2.1× its usual 15.5Cheonan, 8 November: 18.7 µg/m³Cheonan, 9 November: 23.4 µg/m³Cheonan, 10 November: 7.4 µg/m³Chinch'ŏnChinch'ŏn, 2 November: 9.1 µg/m³Chinch'ŏn, 3 November: 12.3 µg/m³Chinch'ŏn, 4 November: 19.8 µg/m³Chinch'ŏn, 5 November: 35.7 µg/m³, 2.0× its usual 17.6Chinch'ŏn, 6 November: 39.9 µg/m³, 2.2× its usual 18.0Chinch'ŏn, 7 November: 38.0 µg/m³, 2.1× its usual 17.8Chinch'ŏn, 8 November: 24.0 µg/m³Chinch'ŏn, 9 November: 22.5 µg/m³Chinch'ŏn, 10 November: 9.7 µg/m³OkcheonOkcheon, 2 November: 13.7 µg/m³Okcheon, 3 November: 16.7 µg/m³Okcheon, 4 November: 20.1 µg/m³Okcheon, 5 November: 32.8 µg/m³, 2.1× its usual 15.4Okcheon, 6 November: 38.2 µg/m³, 2.4× its usual 15.7Okcheon, 7 November: 38.0 µg/m³, 2.4× its usual 15.6Okcheon, 8 November: 33.9 µg/m³Okcheon, 9 November: 27.0 µg/m³Okcheon, 10 November: 12.8 µg/m³DaejeonDaejeon, 2 November: 8.9 µg/m³Daejeon, 3 November: 12.5 µg/m³Daejeon, 4 November: 15.9 µg/m³Daejeon, 5 November: 33.7 µg/m³, 2.6× its usual 12.9Daejeon, 6 November: 37.6 µg/m³, 2.9× its usual 13.1Daejeon, 7 November: 33.9 µg/m³, 2.6× its usual 12.9Daejeon, 8 November: 16.8 µg/m³Daejeon, 9 November: 19.4 µg/m³Daejeon, 10 November: 7.5 µg/m³JeonjuJeonju, 2 November: 10.3 µg/m³Jeonju, 3 November: 13.0 µg/m³Jeonju, 4 November: 16.3 µg/m³Jeonju, 5 November: 28.0 µg/m³, 2.0× its usual 13.8Jeonju, 6 November: 34.2 µg/m³, 2.5× its usual 13.8Jeonju, 7 November: 35.6 µg/m³, 2.7× its usual 13.2Jeonju, 8 November: 19.6 µg/m³Jeonju, 9 November: 20.1 µg/m³Jeonju, 10 November: 9.9 µg/m³GongjuGongju, 2 November: 7.6 µg/m³Gongju, 3 November: 8.2 µg/m³Gongju, 4 November: 12.3 µg/m³Gongju, 5 November: 29.3 µg/m³, 2.5× its usual 11.7Gongju, 6 November: 35.1 µg/m³, 3.0× its usual 11.8Gongju, 7 November: 32.9 µg/m³, 2.8× its usual 11.8Gongju, 8 November: 16.0 µg/m³Gongju, 9 November: 19.6 µg/m³Gongju, 10 November: 4.3 µg/m³Icheon-siIcheon-si, 2 November: 8.7 µg/m³Icheon-si, 3 November: 10.5 µg/m³Icheon-si, 4 November: 21.2 µg/m³Icheon-si, 5 November: 31.4 µg/m³, 2.0× its usual 15.6Icheon-si, 6 November: 34.7 µg/m³, 2.2× its usual 15.6Icheon-si, 7 November: 32.2 µg/m³, 2.1× its usual 15.6Icheon-si, 8 November: 22.4 µg/m³Icheon-si, 9 November: 18.8 µg/m³Icheon-si, 10 November: 6.2 µg/m³YeongdongYeongdong, 2 November: 12.2 µg/m³Yeongdong, 3 November: 15.0 µg/m³Yeongdong, 4 November: 20.9 µg/m³Yeongdong, 5 November: 33.5 µg/m³, 2.1× its usual 15.9Yeongdong, 6 November: 31.9 µg/m³, 2.0× its usual 15.9Yeongdong, 7 November: 28.1 µg/m³Yeongdong, 8 November: 19.8 µg/m³Yeongdong, 9 November: 24.6 µg/m³Yeongdong, 10 November: 12.9 µg/m³ChungjuChungju, 2 November: 10.3 µg/m³Chungju, 3 November: 12.7 µg/m³Chungju, 4 November: 16.9 µg/m³Chungju, 5 November: 27.8 µg/m³, 2.0× its usual 13.6Chungju, 6 November: 30.6 µg/m³, 2.2× its usual 13.9Chungju, 7 November: 24.5 µg/m³Chungju, 8 November: 20.4 µg/m³Chungju, 9 November: 25.0 µg/m³Chungju, 10 November: 9.5 µg/m³TangjinTangjin, 2 November: 15.8 µg/m³Tangjin, 3 November: 14.0 µg/m³Tangjin, 4 November: 26.5 µg/m³Tangjin, 5 November: 32.5 µg/m³Tangjin, 6 November: 40.0 µg/m³, 2.2× its usual 17.8Tangjin, 7 November: 51.7 µg/m³, 2.9× its usual 17.8Tangjin, 8 November: 26.6 µg/m³Tangjin, 9 November: 31.0 µg/m³Tangjin, 10 November: 7.5 µg/m³Hwaseong-siHwaseong-si, 2 November: 6.9 µg/m³Hwaseong-si, 3 November: 14.6 µg/m³Hwaseong-si, 4 November: 26.3 µg/m³Hwaseong-si, 5 November: 24.4 µg/m³Hwaseong-si, 6 November: 38.3 µg/m³, 2.5× its usual 15.2Hwaseong-si, 7 November: 48.9 µg/m³, 3.2× its usual 15.2Hwaseong-si, 8 November: 21.6 µg/m³Hwaseong-si, 9 November: 23.3 µg/m³Hwaseong-si, 10 November: 5.2 µg/m³PubalPubal, 2 November: 10.9 µg/m³Pubal, 3 November: 18.8 µg/m³Pubal, 4 November: 29.6 µg/m³Pubal, 5 November: 43.8 µg/m³Pubal, 6 November: 46.0 µg/m³, 2.1× its usual 22.4Pubal, 7 November: 39.2 µg/m³Pubal, 8 November: 31.9 µg/m³Pubal, 9 November: 24.4 µg/m³Pubal, 10 November: 10.0 µg/m³YeonggwangYeonggwang, 2 November: 5.8 µg/m³Yeonggwang, 3 November: 8.1 µg/m³Yeonggwang, 4 November: 16.8 µg/m³Yeonggwang, 5 November: 25.6 µg/m³Yeonggwang, 6 November: 43.7 µg/m³, 3.2× its usual 13.5Yeonggwang, 7 November: 44.7 µg/m³, 3.3× its usual 13.5Yeonggwang, 8 November: 20.4 µg/m³Yeonggwang, 9 November: 14.1 µg/m³Yeonggwang, 10 November: 5.0 µg/m³Goyang-siGoyang-si, 2 November: 8.1 µg/m³Goyang-si, 3 November: 12.3 µg/m³Goyang-si, 4 November: 19.6 µg/m³Goyang-si, 5 November: 20.3 µg/m³Goyang-si, 6 November: 36.5 µg/m³, 2.2× its usual 16.6Goyang-si, 7 November: 43.5 µg/m³, 2.7× its usual 16.4Goyang-si, 8 November: 18.5 µg/m³Goyang-si, 9 November: 19.5 µg/m³Goyang-si, 10 November: 6.0 µg/m³Gimpo-siGimpo-si, 2 November: 10.1 µg/m³Gimpo-si, 3 November: 11.4 µg/m³Gimpo-si, 4 November: 19.0 µg/m³Gimpo-si, 5 November: 21.2 µg/m³Gimpo-si, 6 November: 36.3 µg/m³, 2.1× its usual 17.3Gimpo-si, 7 November: 42.5 µg/m³, 2.5× its usual 17.3Gimpo-si, 8 November: 18.5 µg/m³Gimpo-si, 9 November: 21.0 µg/m³Gimpo-si, 10 November: 7.3 µg/m³IncheonIncheon, 2 November: 9.3 µg/m³Incheon, 3 November: 13.7 µg/m³Incheon, 4 November: 18.6 µg/m³Incheon, 5 November: 20.0 µg/m³Incheon, 6 November: 34.9 µg/m³, 2.2× its usual 15.7Incheon, 7 November: 42.3 µg/m³, 2.7× its usual 15.7Incheon, 8 November: 18.6 µg/m³Incheon, 9 November: 19.9 µg/m³Incheon, 10 November: 6.5 µg/m³NamsaNamsa, 2 November: 12.8 µg/m³Namsa, 3 November: 11.5 µg/m³Namsa, 4 November: 16.8 µg/m³Namsa, 5 November: 27.7 µg/m³Namsa, 6 November: 37.9 µg/m³, 2.6× its usual 14.5Namsa, 7 November: 42.2 µg/m³, 3.0× its usual 14.2Namsa, 8 November: 20.3 µg/m³Namsa, 9 November: 18.8 µg/m³Namsa, 10 November: 7.3 µg/m³JeongeupJeongeup, 2 November: 10.3 µg/m³Jeongeup, 3 November: 14.9 µg/m³Jeongeup, 4 November: 21.3 µg/m³Jeongeup, 5 November: 30.9 µg/m³Jeongeup, 6 November: 41.4 µg/m³, 2.6× its usual 16.1Jeongeup, 7 November: 40.7 µg/m³, 2.5× its usual 16.1Jeongeup, 8 November: 29.5 µg/m³Jeongeup, 9 November: 22.5 µg/m³Jeongeup, 10 November: 9.9 µg/m³MokpoMokpo, 2 November: 14.7 µg/m³Mokpo, 3 November: 14.8 µg/m³Mokpo, 4 November: 21.8 µg/m³Mokpo, 5 November: 31.2 µg/m³Mokpo, 6 November: 40.4 µg/m³, 2.5× its usual 16.3Mokpo, 7 November: 39.5 µg/m³, 2.4× its usual 16.3Mokpo, 8 November: 23.2 µg/m³Mokpo, 9 November: 19.9 µg/m³Mokpo, 10 November: 14.3 µg/m³Bucheon-siBucheon-si, 2 November: 8.1 µg/m³Bucheon-si, 3 November: 12.1 µg/m³Bucheon-si, 4 November: 18.1 µg/m³Bucheon-si, 5 November: 19.3 µg/m³Bucheon-si, 6 November: 36.4 µg/m³, 2.5× its usual 14.5Bucheon-si, 7 November: 38.9 µg/m³, 2.7× its usual 14.5Bucheon-si, 8 November: 17.2 µg/m³Bucheon-si, 9 November: 18.5 µg/m³Bucheon-si, 10 November: 5.9 µg/m³Ansan-siAnsan-si, 2 November: 7.9 µg/m³Ansan-si, 3 November: 13.7 µg/m³Ansan-si, 4 November: 21.4 µg/m³Ansan-si, 5 November: 21.6 µg/m³Ansan-si, 6 November: 35.3 µg/m³, 2.4× its usual 14.9Ansan-si, 7 November: 38.5 µg/m³, 2.6× its usual 14.6Ansan-si, 8 November: 17.8 µg/m³Ansan-si, 9 November: 20.6 µg/m³Ansan-si, 10 November: 4.9 µg/m³MasanMasan, 2 November: 12.7 µg/m³Masan, 3 November: 11.2 µg/m³Masan, 4 November: 20.1 µg/m³Masan, 5 November: 26.7 µg/m³Masan, 6 November: 36.6 µg/m³, 2.1× its usual 17.1Masan, 7 November: 36.7 µg/m³, 2.2× its usual 16.9Masan, 8 November: 23.7 µg/m³Masan, 9 November: 16.5 µg/m³Masan, 10 November: 9.4 µg/m³GwangmyeongGwangmyeong, 2 November: 9.9 µg/m³Gwangmyeong, 3 November: 12.1 µg/m³Gwangmyeong, 4 November: 17.8 µg/m³Gwangmyeong, 5 November: 22.0 µg/m³Gwangmyeong, 6 November: 34.7 µg/m³, 2.4× its usual 14.4Gwangmyeong, 7 November: 36.7 µg/m³, 2.6× its usual 13.9Gwangmyeong, 8 November: 18.6 µg/m³Gwangmyeong, 9 November: 20.0 µg/m³Gwangmyeong, 10 November: 6.9 µg/m³SinanSinan, 2 November: 8.4 µg/m³Sinan, 3 November: 4.8 µg/m³Sinan, 4 November: 11.1 µg/m³Sinan, 5 November: 19.4 µg/m³Sinan, 6 November: 36.6 µg/m³, 3.6× its usual 10.3Sinan, 7 November: 35.9 µg/m³, 3.5× its usual 10.2Sinan, 8 November: 15.0 µg/m³Sinan, 9 November: 14.7 µg/m³Sinan, 10 November: 7.1 µg/m³SuwonSuwon, 2 November: 9.7 µg/m³Suwon, 3 November: 12.7 µg/m³Suwon, 4 November: 21.1 µg/m³Suwon, 5 November: 25.2 µg/m³Suwon, 6 November: 33.5 µg/m³, 2.3× its usual 14.6Suwon, 7 November: 35.3 µg/m³, 2.6× its usual 13.5Suwon, 8 November: 21.5 µg/m³Suwon, 9 November: 20.3 µg/m³Suwon, 10 November: 6.0 µg/m³DamyangDamyang, 2 November: 10.1 µg/m³Damyang, 3 November: 10.5 µg/m³Damyang, 4 November: 16.8 µg/m³Damyang, 5 November: 20.4 µg/m³Damyang, 6 November: 31.0 µg/m³, 2.1× its usual 14.5Damyang, 7 November: 35.3 µg/m³, 2.5× its usual 14.2Damyang, 8 November: 22.2 µg/m³Damyang, 9 November: 16.7 µg/m³Damyang, 10 November: 8.0 µg/m³OsanOsan, 2 November: 8.3 µg/m³Osan, 3 November: 10.9 µg/m³Osan, 4 November: 21.8 µg/m³Osan, 5 November: 26.2 µg/m³Osan, 6 November: 32.9 µg/m³, 2.2× its usual 14.7Osan, 7 November: 35.1 µg/m³, 2.4× its usual 14.5Osan, 8 November: 18.7 µg/m³Osan, 9 November: 21.3 µg/m³Osan, 10 November: 5.0 µg/m³Uijeongbu-siUijeongbu-si, 2 November: 7.9 µg/m³Uijeongbu-si, 3 November: 10.5 µg/m³Uijeongbu-si, 4 November: 16.3 µg/m³Uijeongbu-si, 5 November: 20.3 µg/m³Uijeongbu-si, 6 November: 33.3 µg/m³, 2.4× its usual 14.0Uijeongbu-si, 7 November: 33.6 µg/m³, 2.4× its usual 14.0Uijeongbu-si, 8 November: 16.3 µg/m³Uijeongbu-si, 9 November: 20.2 µg/m³Uijeongbu-si, 10 November: 6.8 µg/m³KinzanKinzan, 2 November: 12.5 µg/m³Kinzan, 3 November: 13.4 µg/m³Kinzan, 4 November: 19.3 µg/m³Kinzan, 5 November: 28.4 µg/m³Kinzan, 6 November: 33.3 µg/m³, 2.2× its usual 15.3Kinzan, 7 November: 30.9 µg/m³, 2.0× its usual 15.1Kinzan, 8 November: 25.5 µg/m³Kinzan, 9 November: 23.8 µg/m³Kinzan, 10 November: 11.2 µg/m³MuanMuan, 2 November: 8.0 µg/m³Muan, 3 November: 9.6 µg/m³Muan, 4 November: 16.3 µg/m³Muan, 5 November: 22.3 µg/m³Muan, 6 November: 30.5 µg/m³, 2.6× its usual 11.9Muan, 7 November: 32.1 µg/m³, 2.7× its usual 11.9Muan, 8 November: 17.4 µg/m³Muan, 9 November: 14.8 µg/m³Muan, 10 November: 7.4 µg/m³Anyang-siAnyang-si, 2 November: 9.2 µg/m³Anyang-si, 3 November: 10.8 µg/m³Anyang-si, 4 November: 18.7 µg/m³Anyang-si, 5 November: 21.6 µg/m³Anyang-si, 6 November: 30.1 µg/m³, 2.3× its usual 13.3Anyang-si, 7 November: 31.8 µg/m³, 2.4× its usual 13.3Anyang-si, 8 November: 18.0 µg/m³Anyang-si, 9 November: 18.0 µg/m³Anyang-si, 10 November: 6.0 µg/m³GwangjuGwangju, 2 November: 7.6 µg/m³Gwangju, 3 November: 11.1 µg/m³Gwangju, 4 November: 19.5 µg/m³Gwangju, 5 November: 23.6 µg/m³Gwangju, 6 November: 31.7 µg/m³, 2.4× its usual 13.1Gwangju, 7 November: 30.2 µg/m³, 2.3× its usual 13.1Gwangju, 8 November: 19.7 µg/m³Gwangju, 9 November: 18.5 µg/m³Gwangju, 10 November: 7.8 µg/m³MunsanMunsan, 2 November: 7.4 µg/m³Munsan, 3 November: 9.1 µg/m³Munsan, 4 November: 14.9 µg/m³Munsan, 5 November: 17.3 µg/m³Munsan, 6 November: 28.3 µg/m³, 2.0× its usual 14.0Munsan, 7 November: 31.6 µg/m³, 2.3× its usual 13.8Munsan, 8 November: 13.3 µg/m³Munsan, 9 November: 17.8 µg/m³Munsan, 10 November: 8.5 µg/m³SeoulSeoul, 2 November: 7.6 µg/m³Seoul, 3 November: 11.0 µg/m³Seoul, 4 November: 17.0 µg/m³Seoul, 5 November: 21.7 µg/m³Seoul, 6 November: 31.4 µg/m³, 2.3× its usual 13.9Seoul, 7 November: 31.3 µg/m³, 2.3× its usual 13.8Seoul, 8 November: 14.9 µg/m³Seoul, 9 November: 19.1 µg/m³Seoul, 10 November: 6.4 µg/m³Gyeongsan-siGyeongsan-si, 2 November: 10.2 µg/m³Gyeongsan-si, 3 November: 13.9 µg/m³Gyeongsan-si, 4 November: 21.3 µg/m³Gyeongsan-si, 5 November: 26.6 µg/m³Gyeongsan-si, 6 November: 31.1 µg/m³, 2.1× its usual 14.5Gyeongsan-si, 7 November: 26.6 µg/m³Gyeongsan-si, 8 November: 24.2 µg/m³Gyeongsan-si, 9 November: 20.3 µg/m³Gyeongsan-si, 10 November: 11.6 µg/m³Guri-siGuri-si, 2 November: 8.1 µg/m³Guri-si, 3 November: 10.1 µg/m³Guri-si, 4 November: 15.5 µg/m³Guri-si, 5 November: 21.1 µg/m³Guri-si, 6 November: 30.9 µg/m³, 2.3× its usual 13.7Guri-si, 7 November: 30.7 µg/m³, 2.3× its usual 13.3Guri-si, 8 November: 14.1 µg/m³Guri-si, 9 November: 20.1 µg/m³Guri-si, 10 November: 6.9 µg/m³HwadoHwado, 2 November: 12.3 µg/m³Hwado, 3 November: 14.2 µg/m³Hwado, 4 November: 19.5 µg/m³Hwado, 5 November: 25.0 µg/m³Hwado, 6 November: 30.9 µg/m³, 2.2× its usual 14.3Hwado, 7 November: 27.9 µg/m³Hwado, 8 November: 13.7 µg/m³Hwado, 9 November: 21.6 µg/m³Hwado, 10 November: 9.9 µg/m³HayangHayang, 2 November: 10.4 µg/m³Hayang, 3 November: 11.0 µg/m³Hayang, 4 November: 22.5 µg/m³Hayang, 5 November: 26.3 µg/m³Hayang, 6 November: 30.8 µg/m³, 2.1× its usual 14.5Hayang, 7 November: 26.2 µg/m³Hayang, 8 November: 21.1 µg/m³Hayang, 9 November: 18.3 µg/m³Hayang, 10 November: 9.2 µg/m³YangjuYangju, 2 November: 4.7 µg/m³Yangju, 3 November: 9.1 µg/m³Yangju, 4 November: 18.3 µg/m³Yangju, 5 November: 19.5 µg/m³Yangju, 6 November: 30.3 µg/m³, 2.2× its usual 13.6Yangju, 7 November: 29.6 µg/m³, 2.2× its usual 13.6Yangju, 8 November: 12.1 µg/m³Yangju, 9 November: 17.6 µg/m³Yangju, 10 November: 3.7 µg/m³Ganghwa-gunGanghwa-gun, 2 November: 8.8 µg/m³Ganghwa-gun, 3 November: 11.4 µg/m³Ganghwa-gun, 4 November: 17.8 µg/m³Ganghwa-gun, 5 November: 21.5 µg/m³Ganghwa-gun, 6 November: 35.0 µg/m³Ganghwa-gun, 7 November: 36.2 µg/m³, 2.0× its usual 17.7Ganghwa-gun, 8 November: 16.1 µg/m³Ganghwa-gun, 9 November: 20.7 µg/m³Ganghwa-gun, 10 November: 7.8 µg/m³GwangjuGwangju, 2 November: 11.4 µg/m³Gwangju, 3 November: 10.7 µg/m³Gwangju, 4 November: 16.2 µg/m³Gwangju, 5 November: 20.3 µg/m³Gwangju, 6 November: 25.9 µg/m³Gwangju, 7 November: 30.9 µg/m³, 2.2× its usual 13.9Gwangju, 8 November: 18.5 µg/m³Gwangju, 9 November: 15.1 µg/m³Gwangju, 10 November: 9.3 µg/m³2 Nov345678910
The 60 cities with the highest readings of 78, 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
Taesal-liChungcheongnam-do, South Korea3 55.07 November12.04.6×
BoryeongChungcheongnam-do, South Korea3 65.17 November14.64.5×
BuanJeollabuk-do, South Korea3 72.97 November16.74.4×
GunsanJeollabuk-do, South Korea3 74.27 November17.84.2×
SejongSejong-si, South Korea3 57.86 November14.54.0×
AnseongGyeonggi-do, South Korea3 47.26 November12.93.7×
SeosanChungcheongnam-do, South Korea3 45.97 November12.53.7×
SinanJeollanam-do, South Korea2 36.66 November10.33.6×
YŏnmuChungcheongnam-do, South Korea3 54.37 November15.33.5×
IksanJeollabuk-do, South Korea3 59.27 November18.03.3×
YeonggwangJeollanam-do, South Korea2 44.77 November13.53.3×
Hwaseong-siGyeonggi-do, South Korea2 48.97 November15.23.2×
HongseongChungcheongnam-do, South Korea3 53.07 November16.93.1×
AsanChungcheongnam-do, South Korea3 52.26 November17.03.1×
Koch'angJeollabuk-do, South Korea3 43.86 November14.03.1×
KimjeJeollabuk-do, South Korea3 57.97 November19.63.0×
NamsaJeollabuk-do, South Korea2 42.27 November14.23.0×
GongjuChungcheongnam-do, South Korea3 35.16 November11.83.0×
YesanChungcheongnam-do, South Korea3 53.17 November18.52.9×
TangjinChungcheongnam-do, South Korea2 51.77 November17.82.9×
Cheongju-siNorth Chungcheong, South Korea3 46.76 November15.92.9×
WanjuJeollabuk-do, South Korea3 46.07 November16.02.9×
PyeongtaekGyeonggi-do, South Korea3 43.56 November14.92.9×
NonsanChungcheongnam-do, South Korea3 42.07 November14.62.9×
DaejeonDaejeon, South Korea3 37.66 November13.12.9×
Goyang-siGyeonggi-do, South Korea2 43.57 November16.42.7×
IncheonIncheon, South Korea2 42.37 November15.72.7×
Bucheon-siGyeonggi-do, South Korea2 38.97 November14.52.7×
JeonjuJeollabuk-do, South Korea3 35.67 November13.22.7×
MuanJeollanam-do, South Korea2 32.17 November11.92.7×
SeonghwanChungcheongnam-do, South Korea3 53.96 November20.92.6×
JeongeupJeollabuk-do, South Korea2 41.46 November16.12.6×
CheonanChungcheongnam-do, South Korea3 40.36 November15.72.6×
Ansan-siGyeonggi-do, South Korea2 38.57 November14.62.6×
GwangmyeongGyeonggi-do, South Korea2 36.77 November13.92.6×
SuwonGyeonggi-do, South Korea2 35.37 November13.52.6×
HaenamJeollanam-do, South Korea2 30.06 November11.42.6×
Gimpo-siGyeonggi-do, South Korea2 42.57 November17.32.5×
MokpoJeollanam-do, South Korea2 40.46 November16.32.5×
DamyangJeollanam-do, South Korea2 35.37 November14.22.5×
Seongnam-siGyeonggi-do, South Korea2 29.86 November12.02.5×
YeongamJeollanam-do, South Korea2 29.47 November11.82.5×
SantyokuGangwon-do, South Korea2 26.07 November10.62.5×
SinhyeonGyeongsangnam-do, South Korea1 25.06 November10.12.5×
OkcheonNorth Chungcheong, South Korea3 38.26 November15.72.4×
OsanGyeonggi-do, South Korea2 35.17 November14.52.4×
Uijeongbu-siGyeonggi-do, South Korea2 33.67 November14.02.4×
Anyang-siGyeonggi-do, South Korea2 31.87 November13.32.4×
GwangjuGyeonggi-do, South Korea2 31.76 November13.12.4×
ImsilJeollabuk-do, South Korea2 29.87 November12.62.4×
ChangwonGyeongsangnam-do, South Korea1 25.67 November10.72.4×
MunsanGyeonggi-do, South Korea2 31.67 November13.82.3×
SeoulSeoul, South Korea2 31.46 November13.92.3×
Guri-siGyeonggi-do, South Korea2 30.96 November13.72.3×
MungyeongGyeongsangbuk-do, South Korea1 28.66 November12.52.3×
Chinch'ŏnNorth Chungcheong, South Korea3 39.96 November18.02.2×
MasanGwangju, South Korea2 36.77 November16.92.2×
Icheon-siGyeonggi-do, South Korea3 34.76 November15.62.2×
KinzanChungcheongnam-do, South Korea2 33.36 November15.32.2×
HwadoGyeonggi-do, South Korea1 30.96 November14.32.2×
GwangjuGwangju, South Korea1 30.97 November13.92.2×
ChungjuNorth Chungcheong, South Korea2 30.66 November13.92.2×
YangjuGyeonggi-do, South Korea2 30.36 November13.62.2×
DaeguDaegu, South Korea1 28.76 November13.12.2×
JangseongJeollanam-do, South Korea2 27.86 November12.52.2×
ChangnyeongGyeongsangnam-do, South Korea2 26.67 November12.22.2×
NajuJeollanam-do, South Korea1 26.17 November12.12.2×
PubalGyeonggi-do, South Korea1 46.06 November22.42.1×
YeongdongNorth Chungcheong, South Korea2 33.55 November15.92.1×
Gyeongsan-siGyeongsangbuk-do, South Korea1 31.16 November14.52.1×
HayangGyeongsangbuk-do, South Korea1 30.86 November14.52.1×
CheorwonGangwon-do, South Korea1 30.07 November14.32.1×
NamyangjuGyeonggi-do, South Korea1 26.86 November12.52.1×
BoseongJeollanam-do, South Korea1 26.67 November12.42.1×
HwawŏnDaegu, South Korea3 26.26 November12.72.1×
Ganghwa-gunIncheon, South Korea1 36.27 November17.72.0×
JungpyongNorth Chungcheong, South Korea1 28.86 November14.42.0×
NangenJeollabuk-do, South Korea1 28.87 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

Number 20 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, 5 to 7 November 2025: 78 cities with PM2.5 at twice their usual or more, 5 to 7 November 2025, smogrank.com/episodes/2025-11-05-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.