SmogRank / Episodes / South Korea

South Korea, October 2024

For 2 days, from 7 to 8 October 2024, 52 cities in South Korea had PM2.5 at least twice their usual for the time of year. The worst reading was Hwaseong-si, Gyeonggi-do, South Korea: 46.2 µg/m³ on 8 October, about 5.2× its usual 8.9.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached52in 1 country
Days27 to 8 October 2024
Worst day8 October52 cities counted
Furthest above usual5.2×Hwaseong-si

Day by day

8 October 52 cities at twice their usual or more
DaejeonSejongJinan-gunMungyeongChungjuJeongeupWaegwanIcheon-siYecheonYeojuKunwiKuryeHwawŏnDamyangWŏnjuGwangjuYangp'yŏngSeongnam-siYeongjuAndongChangnyeongChinjuJangseongHadongHanamNeietsuGyeongsan-siKwangyangWabuHwasunSuncheonGwangmyeongHayangGuri-siGwangyangHwadoNamyangjuSeoulYeonggwangHongch’ŏnEisenNaesŏBeolgyoMiryangUijeongbu-siGapyeongCheongsong gunYeosuGoseongChangwonBoseongChuncheonYangjuMuanT’aebaekYeongamMunsanKimhaeJangheungGyeongjuYangsanSinhyeonHwacheonYeonilPohangMokpoYangguUngsangGeojeBusanCheorwonUlsanHaenamGangneungGijangSantyokuDonghae CitySinanJumunjinSokchoKosongTsushimaKogaKitakyushuShimonosekiNagatoMineOnodaHagiUbeYamaguchiMasudaHōfuHamadaShūnanGōtsuchōKudamatsuHikariŌdachō-ōdaŌtakeYanaiIwakuniYaeHiroshimaGionKureMasanNangenTongyeongGumiGimpo-siGimcheonKimjeYŏnmuGwangjuKoch'angBuanSangjuGanghwa-gunHongseongOkcheonGoyang-siWanjuKoesanNonsanBuyeoDaeguNamsaChangsuJeonjuSuwonPubalIksanSeosanCheonanKinzanGunsanSeonghwanYesanAnyang-siAnseongImsilTaesal-liIncheonNajuTangjinBoryeongJungpyongOsanChinch'ŏnBucheon-siCheongju-siYeongdongGongjuPyeongtaekAnsan-siAsanHwaseong-si
4 Oct567891011
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

Ganghwa-gunGanghwa-gun, 4 October: 10.9 µg/m³, 1.0× usualGanghwa-gun, 5 October: 16.4 µg/m³, 1.6× usualGanghwa-gun, 6 October: 18.2 µg/m³, 1.7× usualGanghwa-gun, 7 October: 30.7 µg/m³, 3.0× usualGanghwa-gun, 8 October: 28.3 µg/m³, 2.7× usualGanghwa-gun, 9 October: 10.9 µg/m³, 1.0× usualGanghwa-gun, 10 October: 15.0 µg/m³, 1.4× usualGanghwa-gun, 11 October: 21.7 µg/m³, 2.1× usualPyeongtaekPyeongtaek, 4 October: 8.3 µg/m³, 1.0× usualPyeongtaek, 5 October: 12.5 µg/m³, 1.5× usualPyeongtaek, 6 October: 11.7 µg/m³, 1.4× usualPyeongtaek, 7 October: 29.5 µg/m³, 3.5× usualPyeongtaek, 8 October: 36.7 µg/m³, 4.4× usualPyeongtaek, 9 October: 8.9 µg/m³, 1.1× usualPyeongtaek, 10 October: 11.2 µg/m³, 1.3× usualPyeongtaek, 11 October: 29.5 µg/m³, 3.5× usualIncheonIncheon, 4 October: 10.4 µg/m³, 1.1× usualIncheon, 5 October: 15.4 µg/m³, 1.6× usualIncheon, 6 October: 17.9 µg/m³, 1.8× usualIncheon, 7 October: 28.7 µg/m³, 2.9× usualIncheon, 8 October: 38.4 µg/m³, 3.9× usualIncheon, 9 October: 8.9 µg/m³, 0.9× usualIncheon, 10 October: 12.6 µg/m³, 1.3× usualIncheon, 11 October: 25.4 µg/m³, 2.6× usualHwaseong-siHwaseong-si, 4 October: 11.5 µg/m³, 1.3× usualHwaseong-si, 5 October: 15.0 µg/m³, 1.7× usualHwaseong-si, 6 October: 19.4 µg/m³, 2.2× usualHwaseong-si, 7 October: 28.5 µg/m³, 3.2× usualHwaseong-si, 8 October: 46.2 µg/m³, 5.2× usualHwaseong-si, 9 October: 10.9 µg/m³, 1.2× usualHwaseong-si, 10 October: 14.1 µg/m³, 1.6× usualHwaseong-si, 11 October: 29.8 µg/m³, 3.3× usualPubalPubal, 4 October: 11.3 µg/m³, 1.2× usualPubal, 5 October: 14.3 µg/m³, 1.6× usualPubal, 6 October: 16.8 µg/m³, 1.8× usualPubal, 7 October: 28.5 µg/m³, 3.1× usualPubal, 8 October: 30.5 µg/m³, 3.4× usualPubal, 9 October: 13.9 µg/m³, 1.5× usualPubal, 10 October: 16.0 µg/m³, 1.8× usualPubal, 11 October: 26.4 µg/m³, 2.9× usualGimpo-siGimpo-si, 4 October: 10.9 µg/m³, 1.0× usualGimpo-si, 5 October: 17.3 µg/m³, 1.5× usualGimpo-si, 6 October: 17.1 µg/m³, 1.5× usualGimpo-si, 7 October: 28.0 µg/m³, 2.5× usualGimpo-si, 8 October: 30.2 µg/m³, 2.7× usualGimpo-si, 9 October: 10.0 µg/m³, 0.9× usualGimpo-si, 10 October: 14.3 µg/m³, 1.3× usualGimpo-si, 11 October: 26.9 µg/m³, 2.4× usualChinch'ŏnChinch'ŏn, 4 October: 9.7 µg/m³, 1.2× usualChinch'ŏn, 5 October: 11.1 µg/m³, 1.3× usualChinch'ŏn, 6 October: 15.1 µg/m³, 1.8× usualChinch'ŏn, 7 October: 27.6 µg/m³, 3.3× usualChinch'ŏn, 8 October: 35.0 µg/m³, 4.2× usualChinch'ŏn, 9 October: 15.0 µg/m³, 1.8× usualChinch'ŏn, 10 October: 11.6 µg/m³, 1.4× usualChinch'ŏn, 11 October: 19.0 µg/m³, 2.3× usualIksanIksan, 4 October: 9.3 µg/m³, 0.9× usualIksan, 5 October: 13.5 µg/m³, 1.4× usualIksan, 6 October: 16.6 µg/m³, 1.7× usualIksan, 7 October: 27.5 µg/m³, 2.8× usualIksan, 8 October: 33.4 µg/m³, 3.4× usualIksan, 9 October: 26.0 µg/m³, 2.7× usualIksan, 10 October: 16.6 µg/m³, 1.7× usualIksan, 11 October: 21.9 µg/m³, 2.2× usualTangjinTangjin, 4 October: 12.2 µg/m³, 1.1× usualTangjin, 5 October: 16.9 µg/m³, 1.5× usualTangjin, 6 October: 19.8 µg/m³, 1.8× usualTangjin, 7 October: 26.6 µg/m³, 2.4× usualTangjin, 8 October: 44.7 µg/m³, 4.0× usualTangjin, 9 October: 21.8 µg/m³, 1.9× usualTangjin, 10 October: 14.2 µg/m³, 1.3× usualTangjin, 11 October: 25.3 µg/m³, 2.3× usualGoyang-siGoyang-si, 4 October: 8.4 µg/m³, 0.9× usualGoyang-si, 5 October: 15.1 µg/m³, 1.7× usualGoyang-si, 6 October: 14.7 µg/m³, 1.6× usualGoyang-si, 7 October: 26.2 µg/m³, 2.9× usualGoyang-si, 8 October: 28.0 µg/m³, 3.1× usualGoyang-si, 9 October: 8.2 µg/m³, 0.9× usualGoyang-si, 10 October: 13.3 µg/m³, 1.5× usualGoyang-si, 11 October: 27.1 µg/m³, 3.0× usualAnsan-siAnsan-si, 4 October: 8.5 µg/m³, 1.0× usualAnsan-si, 5 October: 13.0 µg/m³, 1.6× usualAnsan-si, 6 October: 15.8 µg/m³, 1.9× usualAnsan-si, 7 October: 26.0 µg/m³, 3.1× usualAnsan-si, 8 October: 38.4 µg/m³, 4.6× usualAnsan-si, 9 October: 7.1 µg/m³, 0.9× usualAnsan-si, 10 October: 10.2 µg/m³, 1.2× usualAnsan-si, 11 October: 26.0 µg/m³, 3.1× usualWanjuWanju, 4 October: 7.1 µg/m³, 0.7× usualWanju, 5 October: 9.3 µg/m³, 0.9× usualWanju, 6 October: 13.5 µg/m³, 1.3× usualWanju, 7 October: 26.0 µg/m³, 2.5× usualWanju, 8 October: 33.0 µg/m³, 3.1× usualWanju, 9 October: 18.7 µg/m³, 1.8× usualWanju, 10 October: 13.0 µg/m³, 1.2× usualWanju, 11 October: 17.2 µg/m³, 1.6× usualBucheon-siBucheon-si, 4 October: 8.0 µg/m³, 1.1× usualBucheon-si, 5 October: 12.7 µg/m³, 1.7× usualBucheon-si, 6 October: 14.9 µg/m³, 2.0× usualBucheon-si, 7 October: 25.1 µg/m³, 3.3× usualBucheon-si, 8 October: 31.7 µg/m³, 4.2× usualBucheon-si, 9 October: 6.9 µg/m³, 0.9× usualBucheon-si, 10 October: 10.9 µg/m³, 1.5× usualBucheon-si, 11 October: 25.0 µg/m³, 3.3× usualAsanAsan, 4 October: 8.1 µg/m³, 0.9× usualAsan, 5 October: 10.9 µg/m³, 1.3× usualAsan, 6 October: 12.8 µg/m³, 1.5× usualAsan, 7 October: 23.8 µg/m³, 2.8× usualAsan, 8 October: 44.5 µg/m³, 5.2× usualAsan, 9 October: 21.0 µg/m³, 2.4× usualAsan, 10 October: 8.2 µg/m³, 1.0× usualAsan, 11 October: 24.2 µg/m³, 2.8× usualSeonghwanSeonghwan, 4 October: 10.7 µg/m³, 1.0× usualSeonghwan, 5 October: 14.5 µg/m³, 1.3× usualSeonghwan, 6 October: 15.3 µg/m³, 1.4× usualSeonghwan, 7 October: 24.3 µg/m³, 2.2× usualSeonghwan, 8 October: 41.0 µg/m³, 3.7× usualSeonghwan, 9 October: 13.8 µg/m³, 1.2× usualSeonghwan, 10 October: 11.7 µg/m³, 1.1× usualSeonghwan, 11 October: 26.8 µg/m³, 2.4× usualYesanYesan, 4 October: 9.3 µg/m³, 0.9× usualYesan, 5 October: 15.6 µg/m³, 1.4× usualYesan, 6 October: 22.4 µg/m³, 2.1× usualYesan, 7 October: 23.9 µg/m³, 2.2× usualYesan, 8 October: 40.7 µg/m³, 3.7× usualYesan, 9 October: 24.2 µg/m³, 2.2× usualYesan, 10 October: 13.4 µg/m³, 1.2× usualYesan, 11 October: 23.8 µg/m³, 2.2× usualGunsanGunsan, 4 October: 9.8 µg/m³, 1.0× usualGunsan, 5 October: 12.3 µg/m³, 1.2× usualGunsan, 6 October: 13.6 µg/m³, 1.4× usualGunsan, 7 October: 20.3 µg/m³, 2.1× usualGunsan, 8 October: 37.0 µg/m³, 3.7× usualGunsan, 9 October: 23.5 µg/m³, 2.4× usualGunsan, 10 October: 13.8 µg/m³, 1.4× usualGunsan, 11 October: 21.1 µg/m³, 2.1× usualNajuNaju, 4 October: 5.5 µg/m³, 0.6× usualNaju, 5 October: 13.9 µg/m³, 1.5× usualNaju, 6 October: 11.7 µg/m³, 1.3× usualNaju, 7 October: 18.9 µg/m³, 2.1× usualNaju, 8 October: 36.0 µg/m³, 4.0× usualNaju, 9 October: no readingNaju, 10 October: 11.0 µg/m³, 1.2× usualNaju, 11 October: no readingCheongju-siCheongju-si, 4 October: 8.1 µg/m³, 1.0× usualCheongju-si, 5 October: 9.4 µg/m³, 1.2× usualCheongju-si, 6 October: 11.6 µg/m³, 1.4× usualCheongju-si, 7 October: 23.5 µg/m³, 2.9× usualCheongju-si, 8 October: 34.6 µg/m³, 4.3× usualCheongju-si, 9 October: 11.4 µg/m³, 1.4× usualCheongju-si, 10 October: 7.4 µg/m³, 0.9× usualCheongju-si, 11 October: 17.3 µg/m³, 2.1× usualBoryeongBoryeong, 4 October: 5.9 µg/m³, 0.7× usualBoryeong, 5 October: 10.0 µg/m³, 1.2× usualBoryeong, 6 October: 14.4 µg/m³, 1.7× usualBoryeong, 7 October: 15.7 µg/m³, 1.9× usualBoryeong, 8 October: 34.0 µg/m³, 4.1× usualBoryeong, 9 October: 18.5 µg/m³, 2.2× usualBoryeong, 10 October: 10.9 µg/m³, 1.3× usualBoryeong, 11 October: 15.9 µg/m³, 1.9× usualKimjeKimje, 4 October: 9.2 µg/m³, 0.8× usualKimje, 5 October: 12.0 µg/m³, 1.0× usualKimje, 6 October: 14.5 µg/m³, 1.2× usualKimje, 7 October: 22.3 µg/m³, 1.9× usualKimje, 8 October: 33.1 µg/m³, 2.8× usualKimje, 9 October: 24.5 µg/m³, 2.1× usualKimje, 10 October: 14.7 µg/m³, 1.2× usualKimje, 11 October: 21.0 µg/m³, 1.8× usualCheonanCheonan, 4 October: 7.7 µg/m³, 0.9× usualCheonan, 5 October: 11.9 µg/m³, 1.3× usualCheonan, 6 October: 12.9 µg/m³, 1.4× usualCheonan, 7 October: 22.0 µg/m³, 2.4× usualCheonan, 8 October: 32.0 µg/m³, 3.6× usualCheonan, 9 October: 15.9 µg/m³, 1.8× usualCheonan, 10 October: 9.6 µg/m³, 1.1× usualCheonan, 11 October: 21.4 µg/m³, 2.4× usualTaesal-liTaesal-li, 4 October: 8.1 µg/m³, 1.0× usualTaesal-li, 5 October: 12.1 µg/m³, 1.5× usualTaesal-li, 6 October: 12.1 µg/m³, 1.5× usualTaesal-li, 7 October: 18.7 µg/m³, 2.3× usualTaesal-li, 8 October: 31.8 µg/m³, 3.9× usualTaesal-li, 9 October: 12.9 µg/m³, 1.6× usualTaesal-li, 10 October: 9.3 µg/m³, 1.1× usualTaesal-li, 11 October: 17.0 µg/m³, 2.1× usualBuanBuan, 4 October: 8.1 µg/m³, 0.8× usualBuan, 5 October: 12.8 µg/m³, 1.2× usualBuan, 6 October: 16.8 µg/m³, 1.6× usualBuan, 7 October: 21.3 µg/m³, 2.0× usualBuan, 8 October: 31.3 µg/m³, 3.0× usualBuan, 9 October: 24.2 µg/m³, 2.3× usualBuan, 10 October: 15.2 µg/m³, 1.4× usualBuan, 11 October: 18.9 µg/m³, 1.8× usualKoesanKoesan, 4 October: 10.9 µg/m³, 1.1× usualKoesan, 5 October: 11.4 µg/m³, 1.2× usualKoesan, 6 October: 13.9 µg/m³, 1.4× usualKoesan, 7 October: 21.0 µg/m³, 2.2× usualKoesan, 8 October: 30.9 µg/m³, 3.2× usualKoesan, 9 October: 12.1 µg/m³, 1.2× usualKoesan, 10 October: 10.9 µg/m³, 1.1× usualKoesan, 11 October: 15.0 µg/m³, 1.5× usualJungpyongJungpyong, 4 October: 5.8 µg/m³, 0.8× usualJungpyong, 5 October: 6.4 µg/m³, 0.9× usualJungpyong, 6 October: 9.0 µg/m³, 1.2× usualJungpyong, 7 October: 23.4 µg/m³, 3.2× usualJungpyong, 8 October: 30.8 µg/m³, 4.2× usualJungpyong, 9 October: 10.0 µg/m³, 1.4× usualJungpyong, 10 October: 8.4 µg/m³, 1.2× usualJungpyong, 11 October: 15.5 µg/m³, 2.1× usualOsanOsan, 4 October: 7.9 µg/m³, 1.1× usualOsan, 5 October: 9.9 µg/m³, 1.4× usualOsan, 6 October: 11.0 µg/m³, 1.5× usualOsan, 7 October: 23.9 µg/m³, 3.3× usualOsan, 8 October: 30.4 µg/m³, 4.2× usualOsan, 9 October: 7.3 µg/m³, 1.0× usualOsan, 10 October: 10.7 µg/m³, 1.5× usualOsan, 11 October: 25.2 µg/m³, 3.5× usualHongseongHongseong, 4 October: 7.9 µg/m³, 0.8× usualHongseong, 5 October: 12.6 µg/m³, 1.3× usualHongseong, 6 October: 18.0 µg/m³, 1.9× usualHongseong, 7 October: 18.2 µg/m³, 1.9× usualHongseong, 8 October: 30.1 µg/m³, 3.1× usualHongseong, 9 October: 18.9 µg/m³, 1.9× usualHongseong, 10 October: 11.9 µg/m³, 1.2× usualHongseong, 11 October: 21.0 µg/m³, 2.2× usualGongjuGongju, 4 October: 5.6 µg/m³, 0.8× usualGongju, 5 October: 7.8 µg/m³, 1.2× usualGongju, 6 October: 10.0 µg/m³, 1.5× usualGongju, 7 October: 17.0 µg/m³, 2.5× usualGongju, 8 October: 29.8 µg/m³, 4.4× usualGongju, 9 October: 12.8 µg/m³, 1.9× usualGongju, 10 October: 6.7 µg/m³, 1.0× usualGongju, 11 October: 14.1 µg/m³, 2.1× usualKinzanKinzan, 4 October: 8.1 µg/m³, 1.0× usualKinzan, 5 October: 10.5 µg/m³, 1.3× usualKinzan, 6 October: 11.7 µg/m³, 1.4× usualKinzan, 7 October: 20.9 µg/m³, 2.5× usualKinzan, 8 October: 29.7 µg/m³, 3.6× usualKinzan, 9 October: 15.0 µg/m³, 1.8× usualKinzan, 10 October: 11.0 µg/m³, 1.3× usualKinzan, 11 October: 14.6 µg/m³, 1.8× usualYeongdongYeongdong, 4 October: 6.4 µg/m³, 0.9× usualYeongdong, 5 October: 6.6 µg/m³, 1.0× usualYeongdong, 6 October: 9.0 µg/m³, 1.3× usualYeongdong, 7 October: 19.7 µg/m³, 2.9× usualYeongdong, 8 October: 29.4 µg/m³, 4.3× usualYeongdong, 9 October: 11.6 µg/m³, 1.7× usualYeongdong, 10 October: 9.0 µg/m³, 1.3× usualYeongdong, 11 October: 14.7 µg/m³, 2.2× usualAnyang-siAnyang-si, 4 October: 9.2 µg/m³, 1.2× usualAnyang-si, 5 October: 12.4 µg/m³, 1.6× usualAnyang-si, 6 October: 15.0 µg/m³, 1.9× usualAnyang-si, 7 October: 23.3 µg/m³, 3.0× usualAnyang-si, 8 October: 28.9 µg/m³, 3.8× usualAnyang-si, 9 October: 7.5 µg/m³, 1.0× usualAnyang-si, 10 October: 12.3 µg/m³, 1.6× usualAnyang-si, 11 October: 24.0 µg/m³, 3.1× usualGumiGumi, 4 October: 10.8 µg/m³, 1.0× usualGumi, 5 October: 12.0 µg/m³, 1.1× usualGumi, 6 October: 12.3 µg/m³, 1.1× usualGumi, 7 October: 16.0 µg/m³, 1.5× usualGumi, 8 October: 28.9 µg/m³, 2.7× usualGumi, 9 October: 11.8 µg/m³, 1.1× usualGumi, 10 October: 12.6 µg/m³, 1.2× usualGumi, 11 October: 17.3 µg/m³, 1.6× usualNonsanNonsan, 4 October: 8.1 µg/m³, 0.9× usualNonsan, 5 October: 12.0 µg/m³, 1.3× usualNonsan, 6 October: 14.3 µg/m³, 1.6× usualNonsan, 7 October: 24.4 µg/m³, 2.7× usualNonsan, 8 October: 28.7 µg/m³, 3.2× usualNonsan, 9 October: 18.5 µg/m³, 2.1× usualNonsan, 10 October: 11.0 µg/m³, 1.2× usualNonsan, 11 October: 19.7 µg/m³, 2.2× usualNamsaNamsa, 4 October: 6.2 µg/m³, 0.7× usualNamsa, 5 October: 8.8 µg/m³, 1.0× usualNamsa, 6 October: 12.0 µg/m³, 1.4× usualNamsa, 7 October: 21.5 µg/m³, 2.5× usualNamsa, 8 October: 28.6 µg/m³, 3.3× usualNamsa, 9 October: 15.9 µg/m³, 1.8× usualNamsa, 10 October: 11.0 µg/m³, 1.3× usualNamsa, 11 October: 16.1 µg/m³, 1.9× usualImsilImsil, 4 October: 3.1 µg/m³, 0.4× usualImsil, 5 October: 5.1 µg/m³, 0.7× usualImsil, 6 October: 5.3 µg/m³, 0.7× usualImsil, 7 October: 14.9 µg/m³, 2.0× usualImsil, 8 October: 28.5 µg/m³, 3.9× usualImsil, 9 October: 12.8 µg/m³, 1.7× usualImsil, 10 October: 8.0 µg/m³, 1.1× usualImsil, 11 October: 10.1 µg/m³, 1.4× usualSuwonSuwon, 4 October: 8.5 µg/m³, 1.0× usualSuwon, 5 October: 12.0 µg/m³, 1.4× usualSuwon, 6 October: 12.6 µg/m³, 1.5× usualSuwon, 7 October: 21.7 µg/m³, 2.6× usualSuwon, 8 October: 28.3 µg/m³, 3.4× usualSuwon, 9 October: 7.2 µg/m³, 0.9× usualSuwon, 10 October: 12.1 µg/m³, 1.5× usualSuwon, 11 October: 23.8 µg/m³, 2.9× usualJeonjuJeonju, 4 October: 5.9 µg/m³, 0.7× usualJeonju, 5 October: 7.5 µg/m³, 0.9× usualJeonju, 6 October: 9.0 µg/m³, 1.1× usualJeonju, 7 October: 18.7 µg/m³, 2.3× usualJeonju, 8 October: 27.9 µg/m³, 3.4× usualJeonju, 9 October: 15.2 µg/m³, 1.9× usualJeonju, 10 October: 9.8 µg/m³, 1.2× usualJeonju, 11 October: 14.8 µg/m³, 1.8× usualOkcheonOkcheon, 4 October: 5.9 µg/m³, 0.7× usualOkcheon, 5 October: 6.0 µg/m³, 0.7× usualOkcheon, 6 October: 9.2 µg/m³, 1.0× usualOkcheon, 7 October: 18.5 µg/m³, 2.1× usualOkcheon, 8 October: 27.4 µg/m³, 3.1× usualOkcheon, 9 October: 12.0 µg/m³, 1.4× usualOkcheon, 10 October: 9.5 µg/m³, 1.1× usualOkcheon, 11 October: 13.5 µg/m³, 1.5× usualMasanMasan, 4 October: 8.5 µg/m³, 0.8× usualMasan, 5 October: 10.7 µg/m³, 1.1× usualMasan, 6 October: 10.5 µg/m³, 1.0× usualMasan, 7 October: 16.9 µg/m³, 1.7× usualMasan, 8 October: 26.6 µg/m³, 2.6× usualMasan, 9 October: 21.1 µg/m³, 2.1× usualMasan, 10 October: 12.3 µg/m³, 1.2× usualMasan, 11 October: 15.9 µg/m³, 1.6× usualYŏnmuYŏnmu, 4 October: 8.5 µg/m³, 1.0× usualYŏnmu, 5 October: 8.2 µg/m³, 0.9× usualYŏnmu, 6 October: 12.6 µg/m³, 1.4× usualYŏnmu, 7 October: 19.2 µg/m³, 2.2× usualYŏnmu, 8 October: 26.1 µg/m³, 2.9× usualYŏnmu, 9 October: 15.6 µg/m³, 1.8× usualYŏnmu, 10 October: 11.0 µg/m³, 1.2× usualYŏnmu, 11 October: 15.0 µg/m³, 1.7× usualTongyeongTongyeong, 4 October: 5.0 µg/m³, 0.5× usualTongyeong, 5 October: 5.8 µg/m³, 0.6× usualTongyeong, 6 October: 5.9 µg/m³, 0.6× usualTongyeong, 7 October: 9.5 µg/m³, 1.0× usualTongyeong, 8 October: 26.1 µg/m³, 2.7× usualTongyeong, 9 October: 8.9 µg/m³, 0.9× usualTongyeong, 10 October: 8.4 µg/m³, 0.9× usualTongyeong, 11 October: 13.9 µg/m³, 1.4× usualSangjuSangju, 4 October: 7.5 µg/m³, 0.9× usualSangju, 5 October: 10.7 µg/m³, 1.2× usualSangju, 6 October: 10.1 µg/m³, 1.2× usualSangju, 7 October: 18.8 µg/m³, 2.2× usualSangju, 8 October: 26.0 µg/m³, 3.0× usualSangju, 9 October: 11.9 µg/m³, 1.4× usualSangju, 10 October: 11.0 µg/m³, 1.3× usualSangju, 11 October: 14.5 µg/m³, 1.7× usualGwangjuGwangju, 4 October: 6.6 µg/m³, 0.7× usualGwangju, 5 October: 8.8 µg/m³, 1.0× usualGwangju, 6 October: 8.4 µg/m³, 0.9× usualGwangju, 7 October: 14.9 µg/m³, 1.7× usualGwangju, 8 October: 26.0 µg/m³, 2.9× usualGwangju, 9 October: 20.7 µg/m³, 2.3× usualGwangju, 10 October: 11.0 µg/m³, 1.2× usualGwangju, 11 October: 14.0 µg/m³, 1.6× usualNangenNangen, 4 October: 4.9 µg/m³, 0.5× usualNangen, 5 October: 6.5 µg/m³, 0.7× usualNangen, 6 October: 8.3 µg/m³, 0.8× usualNangen, 7 October: 16.3 µg/m³, 1.6× usualNangen, 8 October: 26.0 µg/m³, 2.6× usualNangen, 9 October: 15.2 µg/m³, 1.5× usualNangen, 10 October: 10.5 µg/m³, 1.1× usualNangen, 11 October: 11.5 µg/m³, 1.2× usualGimcheonGimcheon, 4 October: 7.4 µg/m³, 0.8× usualGimcheon, 5 October: 9.8 µg/m³, 1.1× usualGimcheon, 6 October: 10.1 µg/m³, 1.1× usualGimcheon, 7 October: 19.0 µg/m³, 2.1× usualGimcheon, 8 October: 25.8 µg/m³, 2.8× usualGimcheon, 9 October: 10.6 µg/m³, 1.2× usualGimcheon, 10 October: 11.6 µg/m³, 1.3× usualGimcheon, 11 October: 14.3 µg/m³, 1.6× usualAnseongAnseong, 4 October: 5.0 µg/m³, 0.8× usualAnseong, 5 October: 8.5 µg/m³, 1.3× usualAnseong, 6 October: 8.0 µg/m³, 1.2× usualAnseong, 7 October: 22.6 µg/m³, 3.5× usualAnseong, 8 October: 25.6 µg/m³, 3.9× usualAnseong, 9 October: 5.9 µg/m³, 0.9× usualAnseong, 10 October: 5.7 µg/m³, 0.9× usualAnseong, 11 October: 17.0 µg/m³, 2.6× usualDaeguDaegu, 4 October: 5.2 µg/m³, 0.7× usualDaegu, 5 October: 6.5 µg/m³, 0.8× usualDaegu, 6 October: 6.3 µg/m³, 0.8× usualDaegu, 7 October: 10.1 µg/m³, 1.3× usualDaegu, 8 October: 25.4 µg/m³, 3.2× usualDaegu, 9 October: 6.0 µg/m³, 0.8× usualDaegu, 10 October: 8.1 µg/m³, 1.0× usualDaegu, 11 October: 12.0 µg/m³, 1.5× usualChangsuChangsu, 4 October: 5.1 µg/m³, 0.7× usualChangsu, 5 October: 5.7 µg/m³, 0.8× usualChangsu, 6 October: 7.0 µg/m³, 0.9× usualChangsu, 7 October: 13.8 µg/m³, 1.8× usualChangsu, 8 October: 25.3 µg/m³, 3.4× usualChangsu, 9 October: 11.4 µg/m³, 1.5× usualChangsu, 10 October: 9.6 µg/m³, 1.3× usualChangsu, 11 October: 11.6 µg/m³, 1.5× usualKoch'angKoch'ang, 4 October: 7.9 µg/m³, 1.0× usualKoch'ang, 5 October: 6.4 µg/m³, 0.8× usualKoch'ang, 6 October: 11.3 µg/m³, 1.4× usualKoch'ang, 7 October: 15.3 µg/m³, 1.8× usualKoch'ang, 8 October: 25.3 µg/m³, 3.0× usualKoch'ang, 9 October: 21.8 µg/m³, 2.6× usualKoch'ang, 10 October: 12.2 µg/m³, 1.5× usualKoch'ang, 11 October: 10.6 µg/m³, 1.3× usualBuyeoBuyeo, 4 October: 8.2 µg/m³, 1.1× usualBuyeo, 5 October: 10.9 µg/m³, 1.4× usualBuyeo, 6 October: 11.0 µg/m³, 1.4× usualBuyeo, 7 October: 16.3 µg/m³, 2.1× usualBuyeo, 8 October: 25.1 µg/m³, 3.2× usualBuyeo, 9 October: 17.0 µg/m³, 2.2× usualBuyeo, 10 October: 12.3 µg/m³, 1.6× usualBuyeo, 11 October: 17.8 µg/m³, 2.3× usualSeosanSeosan, 4 October: 5.9 µg/m³, 0.8× usualSeosan, 5 October: 11.0 µg/m³, 1.5× usualSeosan, 6 October: 12.0 µg/m³, 1.7× usualSeosan, 7 October: 13.7 µg/m³, 1.9× usualSeosan, 8 October: 25.0 µg/m³, 3.5× usualSeosan, 9 October: 13.3 µg/m³, 1.8× usualSeosan, 10 October: 9.6 µg/m³, 1.3× usualSeosan, 11 October: 15.0 µg/m³, 2.1× usual4 Oct567891011
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
Hwaseong-siGyeonggi-do, South Korea2 46.28 October8.95.2×
AsanChungcheongnam-do, South Korea1 44.58 October8.65.2×
Ansan-siGyeonggi-do, South Korea2 38.48 October8.34.6×
GongjuChungcheongnam-do, South Korea1 29.88 October6.74.4×
PyeongtaekGyeonggi-do, South Korea2 36.78 October8.44.4×
YeongdongNorth Chungcheong, South Korea1 29.48 October6.84.3×
Cheongju-siNorth Chungcheong, South Korea1 34.68 October8.14.3×
Bucheon-siGyeonggi-do, South Korea2 31.78 October7.54.2×
OsanGyeonggi-do, South Korea1 30.48 October7.24.2×
JungpyongNorth Chungcheong, South Korea1 30.88 October7.34.2×
Chinch'ŏnNorth Chungcheong, South Korea2 35.08 October8.34.2×
BoryeongChungcheongnam-do, South Korea1 34.08 October8.34.1×
TangjinChungcheongnam-do, South Korea2 44.78 October11.24.0×
NajuJeollanam-do, South Korea1 36.08 October9.14.0×
AnseongGyeonggi-do, South Korea1 25.68 October6.53.9×
Taesal-liChungcheongnam-do, South Korea1 31.88 October8.13.9×
IncheonIncheon, South Korea2 38.48 October9.83.9×
ImsilJeollabuk-do, South Korea1 28.58 October7.43.9×
Anyang-siGyeonggi-do, South Korea1 28.98 October7.73.8×
GunsanJeollabuk-do, South Korea1 37.08 October9.93.7×
YesanChungcheongnam-do, South Korea1 40.78 October10.93.7×
SeonghwanChungcheongnam-do, South Korea1 41.08 October11.13.7×
KinzanChungcheongnam-do, South Korea1 29.78 October8.23.6×
CheonanChungcheongnam-do, South Korea1 32.08 October9.03.6×
SeosanChungcheongnam-do, South Korea1 25.08 October7.23.5×
JeonjuJeollabuk-do, South Korea1 27.98 October8.13.4×
SuwonGyeonggi-do, South Korea1 28.38 October8.33.4×
IksanJeollabuk-do, South Korea2 33.48 October9.83.4×
ChangsuJeollabuk-do, South Korea1 25.38 October7.53.4×
PubalGyeonggi-do, South Korea2 30.58 October9.13.4×
NamsaJeollabuk-do, South Korea1 28.68 October8.63.3×
BuyeoChungcheongnam-do, South Korea1 25.18 October7.83.2×
NonsanChungcheongnam-do, South Korea1 28.78 October9.03.2×
KoesanNorth Chungcheong, South Korea1 30.98 October9.73.2×
DaeguDaegu, South Korea1 25.48 October8.03.2×
OkcheonNorth Chungcheong, South Korea1 27.48 October8.83.1×
WanjuJeollabuk-do, South Korea2 33.08 October10.63.1×
Goyang-siGyeonggi-do, South Korea2 28.08 October9.03.1×
HongseongChungcheongnam-do, South Korea1 30.18 October9.73.1×
Koch'angJeollabuk-do, South Korea1 25.38 October8.33.0×
SangjuGyeongsangbuk-do, South Korea1 26.08 October8.73.0×
BuanJeollabuk-do, South Korea1 31.38 October10.53.0×
Ganghwa-gunIncheon, South Korea2 30.77 October10.43.0×
YŏnmuChungcheongnam-do, South Korea1 26.18 October8.92.9×
GwangjuGwangju, South Korea1 26.08 October9.02.9×
GimcheonGyeongsangbuk-do, South Korea1 25.88 October9.12.8×
KimjeJeollabuk-do, South Korea1 33.18 October11.92.8×
TongyeongGyeongsangnam-do, South Korea1 26.18 October9.62.7×
GumiGyeongsangbuk-do, South Korea1 28.98 October10.82.7×
Gimpo-siGyeonggi-do, South Korea2 30.28 October11.32.7×
MasanGwangju, South Korea1 26.68 October10.12.6×
NangenJeollabuk-do, South Korea1 26.08 October10.02.6×

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 26 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, October 2024: 52 cities with PM2.5 at twice their usual or more, 7 to 8 October 2024, smogrank.com/episodes/2024-10-south-korea (accessed 3 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.