SmogRank / Episodes / South Korea

South Korea, January 2025

For 2 days, from 13 to 14 January 2025, 113 cities in South Korea had PM2.5 at least twice their usual for the time of year. The worst reading was Yangp'yŏng, Gyeonggi-do, South Korea: 55.0 µg/m³ on 14 January, about 2.6× its usual 20.8.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached113in 1 country
Days213 to 14 January 2025
Worst day14 January96 cities counted
Furthest above usual5.1×Jangheung

Day by day

14 January 96 cities at twice their usual or more
KinzanOkcheonDaejeonNamsaSangjuNonsanJeongeupKimjeJungpyongKoesanBuanBeolgyoMiryangChinch'ŏnSeonghwanBoryeongTangjinWŏnjuHanamT’aebaekNamyangjuTsushimaJumunjinCheorwonIkiMatsuuraKaratsuSaseboImarichō-kōItoshimaMaebaru-chūōKogaSaikaiMunakataTakuFukuokaTakeoUreshinomachi-shimojukuKogaWakasugiHigashigōKasugaNakamaKashimaNōgataKanzakimachi-kanzakiSagaŌmuraTogitsuIizukaKitakyushuShimonosekiTosuOgōriKurumeNagatoYanagawaTagawaIsahayaChikugoKandaMineTanushimarumachi-toyokiYukuhashiŌmutaUkihaOnodaYameAraoHagiUbeTamanaBuzenHitaYamagaYamaguchiNakatsuUekimachi-mōnoKikuchiHōfuMasudaŌzuAsoShūnanHamadaYufuKudamatsuBeppuGōtsuchōKunisakiHikariŌitaTsurusakiYanaiŌtakeIwakuniMieŌdachō-ōdaUsukiHiroshimaGionYaeTsukumiuraIzumoSaikiKureHigashihiroshimaYawatahamaIyoMatsuyamaUwajimaGunsanPohangHongseongGongjuGwangjuAsanYeongjuJeonjuHwasunGoseongMokpoYŏnmuCheonanCheongju-siChungjuGanghwa-gunGumiGyeongjuGyeongsan-siYeongdongHadongGwangyangYeosuGangneungKuryeBusanChangnyeongHwadoSeongnam-siAndongIksanGuri-siMungyeongOsanWaegwanYangguYecheonYesanYeonilWabuDonghae CityChinjuGwangjuKwangyangSuncheonUlsanSejongGwangmyeongHwawŏnPubalChangsuCheongsong gunTongyeongHayangIncheonGapyeongGimpo-siPyeongtaekSeosanSeoulSuwonDaeguWanjuNeietsuBoseongChangwonGijangYangsanSinhyeonAnseongAnyang-siJinan-gunHwacheonHwaseong-siImsilKunwiMunsanSantyokuYangjuYeojuEisenUngsangGeojeNaesŏAnsan-siChuncheonHongch’ŏnGimcheonMasanNangenBucheon-siUijeongbu-siMuanTaesal-liJangseongGoyang-siNajuBuyeoDamyangYangp'yŏngYeongamSeogwipoJeju CityKimhaeGaigeturiIcheon-siHaenamYeonggwangKoch'angSinanKosongSokchoJangheung
10 Jan11121314151617
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

Yangp'yŏngYangp'yŏng, 10 January: 20.9 µg/m³, 1.0× usualYangp'yŏng, 11 January: 28.7 µg/m³, 1.4× usualYangp'yŏng, 12 January: 36.8 µg/m³, 1.8× usualYangp'yŏng, 13 January: 49.7 µg/m³, 2.4× usualYangp'yŏng, 14 January: 55.0 µg/m³, 2.6× usualYangp'yŏng, 15 January: 14.3 µg/m³, 0.7× usualYangp'yŏng, 16 January: 22.5 µg/m³, 1.1× usualYangp'yŏng, 17 January: 38.7 µg/m³, 1.9× usualPubalPubal, 10 January: 22.8 µg/m³, 1.0× usualPubal, 11 January: 27.9 µg/m³, 1.2× usualPubal, 12 January: 40.6 µg/m³, 1.8× usualPubal, 13 January: 54.0 µg/m³, 2.3× usualPubal, 14 January: 45.7 µg/m³, 2.0× usualPubal, 15 January: 12.9 µg/m³, 0.6× usualPubal, 16 January: 23.6 µg/m³, 1.0× usualPubal, 17 January: 45.9 µg/m³, 2.0× usualIcheon-siIcheon-si, 10 January: 15.3 µg/m³, 0.8× usualIcheon-si, 11 January: 22.3 µg/m³, 1.2× usualIcheon-si, 12 January: 34.1 µg/m³, 1.8× usualIcheon-si, 13 January: 53.5 µg/m³, 2.8× usualIcheon-si, 14 January: 49.5 µg/m³, 2.6× usualIcheon-si, 15 January: 9.2 µg/m³, 0.5× usualIcheon-si, 16 January: 19.9 µg/m³, 1.1× usualIcheon-si, 17 January: 37.8 µg/m³, 2.0× usualHongch’ŏnHongch’ŏn, 10 January: 18.0 µg/m³, 0.9× usualHongch’ŏn, 11 January: 20.4 µg/m³, 1.0× usualHongch’ŏn, 12 January: 27.9 µg/m³, 1.4× usualHongch’ŏn, 13 January: 39.9 µg/m³, 2.0× usualHongch’ŏn, 14 January: 50.1 µg/m³, 2.5× usualHongch’ŏn, 15 January: 9.3 µg/m³, 0.5× usualHongch’ŏn, 16 January: 11.2 µg/m³, 0.6× usualHongch’ŏn, 17 January: 26.7 µg/m³, 1.3× usualYeojuYeoju, 10 January: 18.2 µg/m³, 0.9× usualYeoju, 11 January: 24.3 µg/m³, 1.2× usualYeoju, 12 January: 36.9 µg/m³, 1.8× usualYeoju, 13 January: 50.0 µg/m³, 2.4× usualYeoju, 14 January: 44.6 µg/m³, 2.1× usualYeoju, 15 January: 10.2 µg/m³, 0.5× usualYeoju, 16 January: 19.5 µg/m³, 0.9× usualYeoju, 17 January: 38.2 µg/m³, 1.8× usualGimcheonGimcheon, 10 January: 16.3 µg/m³, 0.8× usualGimcheon, 11 January: 25.4 µg/m³, 1.3× usualGimcheon, 12 January: 28.6 µg/m³, 1.4× usualGimcheon, 13 January: 40.6 µg/m³, 2.1× usualGimcheon, 14 January: 49.9 µg/m³, 2.5× usualGimcheon, 15 January: 17.3 µg/m³, 0.9× usualGimcheon, 16 January: 17.8 µg/m³, 0.9× usualGimcheon, 17 January: 30.3 µg/m³, 1.5× usualHwadoHwado, 10 January: 18.7 µg/m³, 0.9× usualHwado, 11 January: 26.7 µg/m³, 1.2× usualHwado, 12 January: 37.0 µg/m³, 1.7× usualHwado, 13 January: 48.4 µg/m³, 2.2× usualHwado, 14 January: 48.8 µg/m³, 2.2× usualHwado, 15 January: 11.6 µg/m³, 0.5× usualHwado, 16 January: 20.5 µg/m³, 0.9× usualHwado, 17 January: 38.2 µg/m³, 1.8× usualYeongjuYeongju, 10 January: 21.0 µg/m³, 0.9× usualYeongju, 11 January: 27.0 µg/m³, 1.2× usualYeongju, 12 January: 36.0 µg/m³, 1.6× usualYeongju, 13 January: 47.2 µg/m³, 2.0× usualYeongju, 14 January: 44.5 µg/m³, 1.9× usualYeongju, 15 January: 19.1 µg/m³, 0.8× usualYeongju, 16 January: 21.1 µg/m³, 0.9× usualYeongju, 17 January: 38.4 µg/m³, 1.7× usualUijeongbu-siUijeongbu-si, 10 January: 14.1 µg/m³, 0.8× usualUijeongbu-si, 11 January: 24.2 µg/m³, 1.3× usualUijeongbu-si, 12 January: 26.7 µg/m³, 1.4× usualUijeongbu-si, 13 January: 41.0 µg/m³, 2.2× usualUijeongbu-si, 14 January: 46.5 µg/m³, 2.5× usualUijeongbu-si, 15 January: 9.5 µg/m³, 0.5× usualUijeongbu-si, 16 January: 17.2 µg/m³, 0.9× usualUijeongbu-si, 17 January: 30.7 µg/m³, 1.7× usualGumiGumi, 10 January: 19.8 µg/m³, 0.9× usualGumi, 11 January: 27.7 µg/m³, 1.3× usualGumi, 12 January: 38.0 µg/m³, 1.7× usualGumi, 13 January: 45.9 µg/m³, 2.1× usualGumi, 14 January: 40.1 µg/m³, 1.8× usualGumi, 15 January: 19.5 µg/m³, 0.9× usualGumi, 16 January: 22.2 µg/m³, 1.0× usualGumi, 17 January: 37.4 µg/m³, 1.7× usualYeongdongYeongdong, 10 January: 17.7 µg/m³, 0.8× usualYeongdong, 11 January: 25.3 µg/m³, 1.2× usualYeongdong, 12 January: 34.8 µg/m³, 1.6× usualYeongdong, 13 January: 45.1 µg/m³, 2.1× usualYeongdong, 14 January: 35.7 µg/m³, 1.6× usualYeongdong, 15 January: 12.6 µg/m³, 0.6× usualYeongdong, 16 January: 16.4 µg/m³, 0.8× usualYeongdong, 17 January: 38.9 µg/m³, 1.8× usualMunsanMunsan, 10 January: 14.3 µg/m³, 0.8× usualMunsan, 11 January: 18.0 µg/m³, 1.0× usualMunsan, 12 January: 27.3 µg/m³, 1.5× usualMunsan, 13 January: 39.0 µg/m³, 2.1× usualMunsan, 14 January: 43.7 µg/m³, 2.4× usualMunsan, 15 January: 9.8 µg/m³, 0.5× usualMunsan, 16 January: 19.3 µg/m³, 1.1× usualMunsan, 17 January: 28.9 µg/m³, 1.6× usualGimpo-siGimpo-si, 10 January: 11.0 µg/m³, 0.6× usualGimpo-si, 11 January: 18.4 µg/m³, 1.0× usualGimpo-si, 12 January: 27.1 µg/m³, 1.5× usualGimpo-si, 13 January: 37.9 µg/m³, 2.0× usualGimpo-si, 14 January: 43.6 µg/m³, 2.3× usualGimpo-si, 15 January: 10.0 µg/m³, 0.5× usualGimpo-si, 16 January: 18.8 µg/m³, 1.0× usualGimpo-si, 17 January: 25.7 µg/m³, 1.4× usualSuwonSuwon, 10 January: 12.0 µg/m³, 0.7× usualSuwon, 11 January: 17.4 µg/m³, 0.9× usualSuwon, 12 January: 31.6 µg/m³, 1.7× usualSuwon, 13 January: 38.6 µg/m³, 2.1× usualSuwon, 14 January: 43.1 µg/m³, 2.3× usualSuwon, 15 January: 10.8 µg/m³, 0.6× usualSuwon, 16 January: 18.7 µg/m³, 1.0× usualSuwon, 17 January: 32.6 µg/m³, 1.8× usualSeoulSeoul, 10 January: 13.3 µg/m³, 0.7× usualSeoul, 11 January: 21.0 µg/m³, 1.1× usualSeoul, 12 January: 28.6 µg/m³, 1.5× usualSeoul, 13 January: 39.8 µg/m³, 2.2× usualSeoul, 14 January: 42.8 µg/m³, 2.3× usualSeoul, 15 January: 10.9 µg/m³, 0.6× usualSeoul, 16 January: 18.9 µg/m³, 1.0× usualSeoul, 17 January: 31.9 µg/m³, 1.7× usualGoyang-siGoyang-si, 10 January: 15.3 µg/m³, 0.9× usualGoyang-si, 11 January: 21.4 µg/m³, 1.3× usualGoyang-si, 12 January: 27.1 µg/m³, 1.6× usualGoyang-si, 13 January: 37.7 µg/m³, 2.3× usualGoyang-si, 14 January: 42.8 µg/m³, 2.6× usualGoyang-si, 15 January: 9.4 µg/m³, 0.6× usualGoyang-si, 16 January: 18.4 µg/m³, 1.1× usualGoyang-si, 17 January: 28.4 µg/m³, 1.7× usualAnseongAnseong, 10 January: 13.1 µg/m³, 0.7× usualAnseong, 11 January: 18.5 µg/m³, 1.1× usualAnseong, 12 January: 32.8 µg/m³, 1.9× usualAnseong, 13 January: 42.4 µg/m³, 2.4× usualAnseong, 14 January: 40.3 µg/m³, 2.3× usualAnseong, 15 January: 10.0 µg/m³, 0.6× usualAnseong, 16 January: 16.4 µg/m³, 0.9× usualAnseong, 17 January: 40.0 µg/m³, 2.3× usualSejongSejong, 10 January: 18.6 µg/m³, 1.0× usualSejong, 11 January: 24.9 µg/m³, 1.3× usualSejong, 12 January: 35.3 µg/m³, 1.9× usualSejong, 13 January: 42.4 µg/m³, 2.3× usualSejong, 14 January: 31.7 µg/m³, 1.7× usualSejong, 15 January: 11.8 µg/m³, 0.6× usualSejong, 16 January: 14.7 µg/m³, 0.8× usualSejong, 17 January: 37.5 µg/m³, 2.0× usualBucheon-siBucheon-si, 10 January: 10.9 µg/m³, 0.6× usualBucheon-si, 11 January: 18.2 µg/m³, 1.1× usualBucheon-si, 12 January: 27.6 µg/m³, 1.6× usualBucheon-si, 13 January: 38.0 µg/m³, 2.2× usualBucheon-si, 14 January: 42.3 µg/m³, 2.5× usualBucheon-si, 15 January: 9.6 µg/m³, 0.6× usualBucheon-si, 16 January: 19.0 µg/m³, 1.1× usualBucheon-si, 17 January: 26.9 µg/m³, 1.6× usualGwangmyeongGwangmyeong, 10 January: 11.8 µg/m³, 0.6× usualGwangmyeong, 11 January: 19.6 µg/m³, 1.1× usualGwangmyeong, 12 January: 27.8 µg/m³, 1.5× usualGwangmyeong, 13 January: 37.8 µg/m³, 2.1× usualGwangmyeong, 14 January: 42.3 µg/m³, 2.3× usualGwangmyeong, 15 January: 10.4 µg/m³, 0.6× usualGwangmyeong, 16 January: 18.0 µg/m³, 1.0× usualGwangmyeong, 17 January: 31.7 µg/m³, 1.7× usualMasanMasan, 10 January: 12.5 µg/m³, 0.7× usualMasan, 11 January: 14.9 µg/m³, 0.9× usualMasan, 12 January: 22.5 µg/m³, 1.3× usualMasan, 13 January: 33.6 µg/m³, 2.0× usualMasan, 14 January: 42.0 µg/m³, 2.5× usualMasan, 15 January: 14.6 µg/m³, 0.9× usualMasan, 16 January: 12.9 µg/m³, 0.8× usualMasan, 17 January: 21.7 µg/m³, 1.3× usualChuncheonChuncheon, 10 January: 17.3 µg/m³, 1.0× usualChuncheon, 11 January: 21.2 µg/m³, 1.3× usualChuncheon, 12 January: 32.0 µg/m³, 1.9× usualChuncheon, 13 January: 41.9 µg/m³, 2.5× usualChuncheon, 14 January: 38.3 µg/m³, 2.3× usualChuncheon, 15 January: 10.0 µg/m³, 0.6× usualChuncheon, 16 January: 12.3 µg/m³, 0.7× usualChuncheon, 17 January: 32.7 µg/m³, 2.0× usualGuri-siGuri-si, 10 January: 14.3 µg/m³, 0.7× usualGuri-si, 11 January: 20.6 µg/m³, 1.1× usualGuri-si, 12 January: 29.1 µg/m³, 1.5× usualGuri-si, 13 January: 38.9 µg/m³, 2.0× usualGuri-si, 14 January: 41.9 µg/m³, 2.2× usualGuri-si, 15 January: 10.7 µg/m³, 0.6× usualGuri-si, 16 January: 16.8 µg/m³, 0.9× usualGuri-si, 17 January: 34.2 µg/m³, 1.8× usualChungjuChungju, 10 January: 18.6 µg/m³, 0.9× usualChungju, 11 January: 23.0 µg/m³, 1.1× usualChungju, 12 January: 30.4 µg/m³, 1.5× usualChungju, 13 January: 41.8 µg/m³, 2.1× usualChungju, 14 January: 39.0 µg/m³, 1.9× usualChungju, 15 January: 14.7 µg/m³, 0.7× usualChungju, 16 January: 15.5 µg/m³, 0.8× usualChungju, 17 January: 36.9 µg/m³, 1.8× usualAnsan-siAnsan-si, 10 January: 9.3 µg/m³, 0.6× usualAnsan-si, 11 January: 17.3 µg/m³, 1.0× usualAnsan-si, 12 January: 27.8 µg/m³, 1.6× usualAnsan-si, 13 January: 37.8 µg/m³, 2.2× usualAnsan-si, 14 January: 41.8 µg/m³, 2.5× usualAnsan-si, 15 January: 8.6 µg/m³, 0.5× usualAnsan-si, 16 January: 18.0 µg/m³, 1.1× usualAnsan-si, 17 January: 26.6 µg/m³, 1.6× usualCheongju-siCheongju-si, 10 January: 16.7 µg/m³, 0.8× usualCheongju-si, 11 January: 22.4 µg/m³, 1.1× usualCheongju-si, 12 January: 35.2 µg/m³, 1.8× usualCheongju-si, 13 January: 41.7 µg/m³, 2.1× usualCheongju-si, 14 January: 34.4 µg/m³, 1.7× usualCheongju-si, 15 January: 12.1 µg/m³, 0.6× usualCheongju-si, 16 January: 17.2 µg/m³, 0.9× usualCheongju-si, 17 January: 37.8 µg/m³, 1.9× usualNangenNangen, 10 January: 11.8 µg/m³, 0.7× usualNangen, 11 January: 15.5 µg/m³, 0.9× usualNangen, 12 January: 26.6 µg/m³, 1.6× usualNangen, 13 January: 34.0 µg/m³, 2.0× usualNangen, 14 January: 41.7 µg/m³, 2.5× usualNangen, 15 January: 14.6 µg/m³, 0.9× usualNangen, 16 January: 15.9 µg/m³, 0.9× usualNangen, 17 January: 29.9 µg/m³, 1.8× usualYangjuYangju, 10 January: 14.0 µg/m³, 0.8× usualYangju, 11 January: 23.4 µg/m³, 1.4× usualYangju, 12 January: 25.1 µg/m³, 1.5× usualYangju, 13 January: 37.6 µg/m³, 2.2× usualYangju, 14 January: 41.5 µg/m³, 2.4× usualYangju, 15 January: 6.9 µg/m³, 0.4× usualYangju, 16 January: 16.1 µg/m³, 0.9× usualYangju, 17 January: 34.5 µg/m³, 2.0× usualPyeongtaekPyeongtaek, 10 January: 13.2 µg/m³, 0.7× usualPyeongtaek, 11 January: 19.4 µg/m³, 1.1× usualPyeongtaek, 12 January: 34.9 µg/m³, 1.9× usualPyeongtaek, 13 January: 41.3 µg/m³, 2.3× usualPyeongtaek, 14 January: 39.0 µg/m³, 2.1× usualPyeongtaek, 15 January: 10.5 µg/m³, 0.6× usualPyeongtaek, 16 January: 19.2 µg/m³, 1.0× usualPyeongtaek, 17 January: 34.9 µg/m³, 1.9× usualIncheonIncheon, 10 January: 11.3 µg/m³, 0.6× usualIncheon, 11 January: 18.1 µg/m³, 1.0× usualIncheon, 12 January: 27.5 µg/m³, 1.5× usualIncheon, 13 January: 35.6 µg/m³, 2.0× usualIncheon, 14 January: 41.3 µg/m³, 2.3× usualIncheon, 15 January: 10.4 µg/m³, 0.6× usualIncheon, 16 January: 19.7 µg/m³, 1.1× usualIncheon, 17 January: 23.0 µg/m³, 1.3× usualAsanAsan, 10 January: 18.3 µg/m³, 0.9× usualAsan, 11 January: 26.3 µg/m³, 1.3× usualAsan, 12 January: 36.5 µg/m³, 1.8× usualAsan, 13 January: 40.7 µg/m³, 2.0× usualAsan, 14 January: 37.2 µg/m³, 1.9× usualAsan, 15 January: 9.6 µg/m³, 0.5× usualAsan, 16 January: 16.4 µg/m³, 0.8× usualAsan, 17 January: 34.6 µg/m³, 1.7× usualOsanOsan, 10 January: 13.0 µg/m³, 0.7× usualOsan, 11 January: 18.4 µg/m³, 1.0× usualOsan, 12 January: 31.3 µg/m³, 1.7× usualOsan, 13 January: 37.2 µg/m³, 2.0× usualOsan, 14 January: 40.4 µg/m³, 2.2× usualOsan, 15 January: 10.9 µg/m³, 0.6× usualOsan, 16 January: 17.4 µg/m³, 0.9× usualOsan, 17 January: 33.7 µg/m³, 1.8× usualGanghwa-gunGanghwa-gun, 10 January: 14.7 µg/m³, 0.7× usualGanghwa-gun, 11 January: 16.7 µg/m³, 0.9× usualGanghwa-gun, 12 January: 26.7 µg/m³, 1.4× usualGanghwa-gun, 13 January: 40.3 µg/m³, 2.1× usualGanghwa-gun, 14 January: 36.5 µg/m³, 1.9× usualGanghwa-gun, 15 January: 10.1 µg/m³, 0.5× usualGanghwa-gun, 16 January: 21.5 µg/m³, 1.1× usualGanghwa-gun, 17 January: 21.7 µg/m³, 1.1× usualGapyeongGapyeong, 10 January: 12.0 µg/m³, 0.7× usualGapyeong, 11 January: 15.0 µg/m³, 0.9× usualGapyeong, 12 January: 25.5 µg/m³, 1.5× usualGapyeong, 13 January: 32.7 µg/m³, 1.9× usualGapyeong, 14 January: 40.3 µg/m³, 2.3× usualGapyeong, 15 January: 7.7 µg/m³, 0.4× usualGapyeong, 16 January: 12.7 µg/m³, 0.7× usualGapyeong, 17 January: 24.7 µg/m³, 1.4× usualYŏnmuYŏnmu, 10 January: 17.0 µg/m³, 0.9× usualYŏnmu, 11 January: 22.5 µg/m³, 1.2× usualYŏnmu, 12 January: 30.4 µg/m³, 1.6× usualYŏnmu, 13 January: 40.2 µg/m³, 2.1× usualYŏnmu, 14 January: 35.5 µg/m³, 1.9× usualYŏnmu, 15 January: 11.9 µg/m³, 0.6× usualYŏnmu, 16 January: 12.0 µg/m³, 0.6× usualYŏnmu, 17 January: 29.6 µg/m³, 1.6× usualAnyang-siAnyang-si, 10 January: 12.3 µg/m³, 0.7× usualAnyang-si, 11 January: 18.3 µg/m³, 1.1× usualAnyang-si, 12 January: 27.4 µg/m³, 1.6× usualAnyang-si, 13 January: 37.6 µg/m³, 2.2× usualAnyang-si, 14 January: 40.2 µg/m³, 2.4× usualAnyang-si, 15 January: 10.9 µg/m³, 0.6× usualAnyang-si, 16 January: 17.7 µg/m³, 1.1× usualAnyang-si, 17 January: 31.3 µg/m³, 1.9× usualHwaseong-siHwaseong-si, 10 January: 11.5 µg/m³, 0.7× usualHwaseong-si, 11 January: 17.2 µg/m³, 1.0× usualHwaseong-si, 12 January: 31.4 µg/m³, 1.9× usualHwaseong-si, 13 January: 37.9 µg/m³, 2.3× usualHwaseong-si, 14 January: 40.1 µg/m³, 2.4× usualHwaseong-si, 15 January: 7.8 µg/m³, 0.5× usualHwaseong-si, 16 January: 18.1 µg/m³, 1.1× usualHwaseong-si, 17 January: 24.2 µg/m³, 1.5× usualNajuNaju, 10 January: 11.5 µg/m³, 0.8× usualNaju, 11 January: 18.3 µg/m³, 1.2× usualNaju, 12 January: 25.8 µg/m³, 1.7× usualNaju, 13 January: 30.5 µg/m³, 2.0× usualNaju, 14 January: 39.6 µg/m³, 2.6× usualNaju, 15 January: 15.0 µg/m³, 1.0× usualNaju, 16 January: 14.4 µg/m³, 1.0× usualNaju, 17 January: 20.9 µg/m³, 1.4× usualAndongAndong, 10 January: 15.7 µg/m³, 0.9× usualAndong, 11 January: 21.2 µg/m³, 1.2× usualAndong, 12 January: 25.9 µg/m³, 1.5× usualAndong, 13 January: 39.3 µg/m³, 2.2× usualAndong, 14 January: 34.7 µg/m³, 2.0× usualAndong, 15 January: 14.2 µg/m³, 0.8× usualAndong, 16 January: 14.7 µg/m³, 0.8× usualAndong, 17 January: 28.9 µg/m³, 1.7× usualGwangjuGwangju, 10 January: 16.2 µg/m³, 0.8× usualGwangju, 11 January: 19.6 µg/m³, 1.0× usualGwangju, 12 January: 29.3 µg/m³, 1.5× usualGwangju, 13 January: 39.3 µg/m³, 2.0× usualGwangju, 14 January: 38.4 µg/m³, 2.0× usualGwangju, 15 January: 10.0 µg/m³, 0.5× usualGwangju, 16 January: 18.4 µg/m³, 0.9× usualGwangju, 17 January: 34.3 µg/m³, 1.8× usualTongyeongTongyeong, 10 January: 9.9 µg/m³, 0.6× usualTongyeong, 11 January: 14.0 µg/m³, 0.8× usualTongyeong, 12 January: 18.9 µg/m³, 1.1× usualTongyeong, 13 January: 34.3 µg/m³, 2.0× usualTongyeong, 14 January: 39.0 µg/m³, 2.3× usualTongyeong, 15 January: 17.1 µg/m³, 1.0× usualTongyeong, 16 January: 13.2 µg/m³, 0.8× usualTongyeong, 17 January: 27.5 µg/m³, 1.6× usualNeietsuNeietsu, 10 January: 13.5 µg/m³, 0.8× usualNeietsu, 11 January: 16.3 µg/m³, 1.0× usualNeietsu, 12 January: 24.5 µg/m³, 1.4× usualNeietsu, 13 January: 32.8 µg/m³, 1.9× usualNeietsu, 14 January: 38.8 µg/m³, 2.3× usualNeietsu, 15 January: 10.4 µg/m³, 0.6× usualNeietsu, 16 January: 12.8 µg/m³, 0.7× usualNeietsu, 17 January: 25.1 µg/m³, 1.5× usualWaegwanWaegwan, 10 January: 11.8 µg/m³, 0.7× usualWaegwan, 11 January: 18.3 µg/m³, 1.0× usualWaegwan, 12 January: 27.3 µg/m³, 1.6× usualWaegwan, 13 January: 38.3 µg/m³, 2.2× usualWaegwan, 14 January: 36.6 µg/m³, 2.1× usualWaegwan, 15 January: 13.5 µg/m³, 0.8× usualWaegwan, 16 January: 15.3 µg/m³, 0.9× usualWaegwan, 17 January: 28.8 µg/m³, 1.6× usualHwacheonHwacheon, 10 January: 19.5 µg/m³, 1.2× usualHwacheon, 11 January: 22.1 µg/m³, 1.4× usualHwacheon, 12 January: 30.6 µg/m³, 1.9× usualHwacheon, 13 January: 34.0 µg/m³, 2.1× usualHwacheon, 14 January: 38.3 µg/m³, 2.4× usualHwacheon, 15 January: 13.0 µg/m³, 0.8× usualHwacheon, 16 January: 16.2 µg/m³, 1.0× usualHwacheon, 17 January: 28.9 µg/m³, 1.8× usualYesanYesan, 10 January: 17.1 µg/m³, 1.0× usualYesan, 11 January: 24.4 µg/m³, 1.4× usualYesan, 12 January: 34.0 µg/m³, 1.9× usualYesan, 13 January: 38.2 µg/m³, 2.2× usualYesan, 14 January: 31.9 µg/m³, 1.8× usualYesan, 15 January: 8.5 µg/m³, 0.5× usualYesan, 16 January: 13.9 µg/m³, 0.8× usualYesan, 17 January: 27.7 µg/m³, 1.6× usualImsilImsil, 10 January: 10.6 µg/m³, 0.7× usualImsil, 11 January: 14.9 µg/m³, 1.0× usualImsil, 12 January: 26.5 µg/m³, 1.7× usualImsil, 13 January: 31.2 µg/m³, 2.0× usualImsil, 14 January: 38.0 µg/m³, 2.4× usualImsil, 15 January: 11.9 µg/m³, 0.8× usualImsil, 16 January: 12.5 µg/m³, 0.8× usualImsil, 17 January: 26.1 µg/m³, 1.7× usualIksanIksan, 10 January: 17.0 µg/m³, 1.0× usualIksan, 11 January: 25.8 µg/m³, 1.5× usualIksan, 12 January: 28.3 µg/m³, 1.6× usualIksan, 13 January: 37.9 µg/m³, 2.2× usualIksan, 14 January: 34.2 µg/m³, 1.9× usualIksan, 15 January: 10.1 µg/m³, 0.6× usualIksan, 16 January: 13.8 µg/m³, 0.8× usualIksan, 17 January: 28.6 µg/m³, 1.6× usualKimhaeKimhae, 10 January: 9.3 µg/m³, 0.7× usualKimhae, 11 January: 13.5 µg/m³, 1.0× usualKimhae, 12 January: 18.1 µg/m³, 1.3× usualKimhae, 13 January: 28.4 µg/m³, 2.0× usualKimhae, 14 January: 37.9 µg/m³, 2.7× usualKimhae, 15 January: 13.9 µg/m³, 1.0× usualKimhae, 16 January: 10.7 µg/m³, 0.8× usualKimhae, 17 January: 30.1 µg/m³, 2.1× usualChangsuChangsu, 10 January: 12.5 µg/m³, 0.8× usualChangsu, 11 January: 16.5 µg/m³, 1.0× usualChangsu, 12 January: 26.9 µg/m³, 1.7× usualChangsu, 13 January: 37.2 µg/m³, 2.3× usualChangsu, 14 January: 37.7 µg/m³, 2.3× usualChangsu, 15 January: 11.3 µg/m³, 0.7× usualChangsu, 16 January: 13.6 µg/m³, 0.8× usualChangsu, 17 January: 29.7 µg/m³, 1.8× usualSantyokuSantyoku, 10 January: 9.7 µg/m³, 0.6× usualSantyoku, 11 January: 13.2 µg/m³, 0.9× usualSantyoku, 12 January: 17.0 µg/m³, 1.1× usualSantyoku, 13 January: 30.7 µg/m³, 2.0× usualSantyoku, 14 January: 37.2 µg/m³, 2.4× usualSantyoku, 15 January: 11.4 µg/m³, 0.7× usualSantyoku, 16 January: 12.4 µg/m³, 0.8× usualSantyoku, 17 January: 19.5 µg/m³, 1.3× usualGyeongsan-siGyeongsan-si, 10 January: 12.5 µg/m³, 0.7× usualGyeongsan-si, 11 January: 17.5 µg/m³, 1.0× usualGyeongsan-si, 12 January: 28.1 µg/m³, 1.6× usualGyeongsan-si, 13 January: 36.9 µg/m³, 2.1× usualGyeongsan-si, 14 January: 35.9 µg/m³, 2.1× usualGyeongsan-si, 15 January: 14.2 µg/m³, 0.8× usualGyeongsan-si, 16 January: 15.3 µg/m³, 0.9× usualGyeongsan-si, 17 January: 27.5 µg/m³, 1.6× usualHongseongHongseong, 10 January: 18.1 µg/m³, 1.0× usualHongseong, 11 January: 27.4 µg/m³, 1.5× usualHongseong, 12 January: 30.3 µg/m³, 1.7× usualHongseong, 13 January: 36.6 µg/m³, 2.0× usualHongseong, 14 January: 31.9 µg/m³, 1.8× usualHongseong, 15 January: 8.7 µg/m³, 0.5× usualHongseong, 16 January: 15.3 µg/m³, 0.9× usualHongseong, 17 January: 25.7 µg/m³, 1.4× usualYeonilYeonil, 10 January: 11.2 µg/m³, 0.7× usualYeonil, 11 January: 14.5 µg/m³, 0.9× usualYeonil, 12 January: 24.0 µg/m³, 1.5× usualYeonil, 13 January: 32.8 µg/m³, 2.0× usualYeonil, 14 January: 36.6 µg/m³, 2.2× usualYeonil, 15 January: 11.4 µg/m³, 0.7× usualYeonil, 16 January: 12.3 µg/m³, 0.8× usualYeonil, 17 January: 34.7 µg/m³, 2.1× usualSeongnam-siSeongnam-si, 10 January: 12.4 µg/m³, 0.7× usualSeongnam-si, 11 January: 17.9 µg/m³, 1.1× usualSeongnam-si, 12 January: 26.8 µg/m³, 1.6× usualSeongnam-si, 13 January: 36.2 µg/m³, 2.2× usualSeongnam-si, 14 January: 36.4 µg/m³, 2.2× usualSeongnam-si, 15 January: 9.3 µg/m³, 0.6× usualSeongnam-si, 16 January: 15.7 µg/m³, 0.9× usualSeongnam-si, 17 January: 32.3 µg/m³, 1.9× usualWanjuWanju, 10 January: 12.6 µg/m³, 0.8× usualWanju, 11 January: 24.0 µg/m³, 1.5× usualWanju, 12 January: 26.0 µg/m³, 1.7× usualWanju, 13 January: 31.6 µg/m³, 2.0× usualWanju, 14 January: 36.2 µg/m³, 2.3× usualWanju, 15 January: 12.2 µg/m³, 0.8× usualWanju, 16 January: 13.6 µg/m³, 0.9× usualWanju, 17 January: 26.9 µg/m³, 1.7× usualCheonanCheonan, 10 January: 15.5 µg/m³, 0.9× usualCheonan, 11 January: 22.9 µg/m³, 1.3× usualCheonan, 12 January: 32.8 µg/m³, 1.9× usualCheonan, 13 January: 36.1 µg/m³, 2.1× usualCheonan, 14 January: 32.5 µg/m³, 1.9× usualCheonan, 15 January: 9.4 µg/m³, 0.6× usualCheonan, 16 January: 14.5 µg/m³, 0.9× usualCheonan, 17 January: 30.8 µg/m³, 1.8× usualJangheungJangheung, 10 January: 4.7 µg/m³, 0.5× usualJangheung, 11 January: 7.7 µg/m³, 0.8× usualJangheung, 12 January: 21.0 µg/m³, 2.1× usualJangheung, 13 January: no readingJangheung, 14 January: 49.8 µg/m³, 5.1× usualJangheung, 15 January: 10.1 µg/m³, 1.0× usualJangheung, 16 January: 7.0 µg/m³, 0.7× usualJangheung, 17 January: 14.1 µg/m³, 1.4× usualWabuWabu, 10 January: 13.1 µg/m³, 0.7× usualWabu, 11 January: 20.4 µg/m³, 1.2× usualWabu, 12 January: 24.0 µg/m³, 1.4× usualWabu, 13 January: 34.4 µg/m³, 1.9× usualWabu, 14 January: 40.8 µg/m³, 2.3× usualWabu, 15 January: 12.8 µg/m³, 0.7× usualWabu, 16 January: 15.2 µg/m³, 0.9× usualWabu, 17 January: 30.9 µg/m³, 1.7× usualGwangjuGwangju, 10 January: 11.7 µg/m³, 0.7× usualGwangju, 11 January: 15.7 µg/m³, 1.0× usualGwangju, 12 January: 22.6 µg/m³, 1.4× usualGwangju, 13 January: 29.9 µg/m³, 1.8× usualGwangju, 14 January: 38.3 µg/m³, 2.3× usualGwangju, 15 January: 15.0 µg/m³, 0.9× usualGwangju, 16 January: 13.6 µg/m³, 0.8× usualGwangju, 17 January: 23.3 µg/m³, 1.4× usualPohangPohang, 10 January: 14.3 µg/m³, 0.8× usualPohang, 11 January: 17.9 µg/m³, 1.0× usualPohang, 12 January: 23.1 µg/m³, 1.3× usualPohang, 13 January: 33.0 µg/m³, 1.8× usualPohang, 14 January: 37.0 µg/m³, 2.0× usualPohang, 15 January: 16.0 µg/m³, 0.9× usualPohang, 16 January: 15.6 µg/m³, 0.9× usualPohang, 17 January: 30.5 µg/m³, 1.7× usual10 Jan11121314151617
The 60 cities with the highest readings of 113, 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
JangheungJeollanam-do, South Korea1 49.814 January9.85.1×
SokchoGangwon-do, South Korea1 30.914 January9.43.3×
KosongGangwon-do, South Korea1 29.914 January9.53.1×
SinanJeollanam-do, South Korea1 27.514 January8.93.1×
Koch'angJeollabuk-do, South Korea1 34.914 January11.83.0×
YeonggwangJeollanam-do, South Korea1 33.514 January11.52.9×
HaenamJeollanam-do, South Korea1 35.914 January12.42.9×
Icheon-siGyeonggi-do, South Korea2 53.513 January18.92.8×
GaigeturiJeju-do, South Korea1 32.614 January11.62.8×
SeogwipoJeju-do, South Korea1 32.914 January12.12.7×
Jeju CityJeju-do, South Korea1 35.114 January13.12.7×
YeongamJeollanam-do, South Korea1 35.914 January13.42.7×
KimhaeGyeongsangnam-do, South Korea2 37.914 January14.22.7×
Yangp'yŏngGyeonggi-do, South Korea2 55.014 January20.82.6×
BuyeoChungcheongnam-do, South Korea2 35.613 January13.52.6×
DamyangJeollanam-do, South Korea2 34.714 January13.22.6×
NajuJeollanam-do, South Korea2 39.614 January15.12.6×
Taesal-liChungcheongnam-do, South Korea1 30.714 January11.92.6×
JangseongJeollanam-do, South Korea2 35.514 January13.82.6×
Goyang-siGyeonggi-do, South Korea2 42.814 January16.72.6×
MuanJeollanam-do, South Korea1 28.414 January11.12.6×
GimcheonGyeongsangbuk-do, South Korea2 49.914 January19.82.5×
UngsangGyeongsangnam-do, South Korea1 32.014 January12.72.5×
Uijeongbu-siGyeonggi-do, South Korea2 46.514 January18.52.5×
ChuncheonGangwon-do, South Korea2 41.913 January16.72.5×
Hongch’ŏnGangwon-do, South Korea2 50.114 January20.02.5×
GeojeGyeongsangnam-do, South Korea2 30.914 January12.42.5×
MasanGwangju, South Korea2 42.014 January16.92.5×
NangenJeollabuk-do, South Korea2 41.714 January16.82.5×
NaesŏGyeongsangnam-do, South Korea2 35.914 January14.52.5×
Bucheon-siGyeonggi-do, South Korea2 42.314 January17.12.5×
Ansan-siGyeonggi-do, South Korea2 41.814 January16.92.5×
GijangBusan, South Korea1 34.514 January14.12.4×
Hwaseong-siGyeonggi-do, South Korea2 40.114 January16.42.4×
ChangwonGyeongsangnam-do, South Korea1 33.714 January13.82.4×
ImsilJeollabuk-do, South Korea2 38.014 January15.62.4×
EisenGyeongsangbuk-do, South Korea2 33.614 January13.82.4×
SantyokuGangwon-do, South Korea2 37.214 January15.32.4×
YangjuGyeonggi-do, South Korea2 41.514 January17.12.4×
AnseongGyeonggi-do, South Korea2 42.413 January17.52.4×
Jinan-gunJeollabuk-do, South Korea2 34.314 January14.22.4×
YangsanGyeongsangnam-do, South Korea1 30.914 January12.82.4×
BoseongJeollanam-do, South Korea1 31.014 January12.92.4×
HwacheonGangwon-do, South Korea2 38.314 January16.02.4×
Anyang-siGyeonggi-do, South Korea2 40.214 January16.82.4×
KunwiGyeongsangbuk-do, South Korea2 34.413 January14.42.4×
MunsanGyeonggi-do, South Korea2 43.714 January18.32.4×
SinhyeonGyeongsangnam-do, South Korea2 32.914 January13.82.4×
YeojuGyeonggi-do, South Korea2 50.013 January21.02.4×
GwangjuGwangju, South Korea1 38.314 January16.32.3×
Gimpo-siGyeonggi-do, South Korea2 43.614 January18.62.3×
GapyeongGyeonggi-do, South Korea2 40.314 January17.22.3×
SuwonGyeonggi-do, South Korea2 43.114 January18.42.3×
UlsanUlsan, South Korea1 31.914 January13.72.3×
PubalGyeonggi-do, South Korea2 54.013 January23.22.3×
HayangGyeongsangbuk-do, South Korea2 35.313 January15.22.3×
TongyeongGyeongsangnam-do, South Korea2 39.014 January16.82.3×
SeoulSeoul, South Korea2 42.814 January18.52.3×
ChangsuJeollabuk-do, South Korea2 37.714 January16.32.3×
GwangmyeongGyeonggi-do, South Korea2 42.314 January18.32.3×
IncheonIncheon, South Korea2 41.314 January17.92.3×
Donghae CityGangwon-do, South Korea1 35.314 January15.32.3×
WanjuJeollabuk-do, South Korea2 36.214 January15.72.3×
WabuGyeonggi-do, South Korea1 40.814 January17.72.3×
SuncheonJeollanam-do, South Korea1 27.614 January12.02.3×
HwawŏnDaegu, South Korea2 33.113 January14.42.3×
SeosanChungcheongnam-do, South Korea2 32.113 January14.02.3×
ChinjuGyeongsangnam-do, South Korea1 35.914 January15.72.3×
DaeguDaegu, South Korea2 35.413 January15.52.3×
SejongSejong-si, South Korea1 42.413 January18.62.3×
KwangyangJeollanam-do, South Korea1 28.614 January12.62.3×
NeietsuGangwon-do, South Korea2 38.814 January17.12.3×
Cheongsong gunGyeongsangbuk-do, South Korea2 31.513 January13.92.3×
PyeongtaekGyeonggi-do, South Korea2 41.313 January18.32.3×
AndongGyeongsangbuk-do, South Korea1 39.313 January17.52.2×
YeonilGyeongsangbuk-do, South Korea2 36.614 January16.32.2×
GwangyangJeollanam-do, South Korea1 28.714 January12.82.2×
BusanBusan, South Korea1 35.614 January15.92.2×
HwadoGyeonggi-do, South Korea2 48.814 January21.82.2×
HadongGyeongsangnam-do, South Korea1 29.014 January13.12.2×
YangguGangwon-do, South Korea1 32.713 January14.82.2×
ChangnyeongGyeongsangnam-do, South Korea2 31.814 January14.42.2×
YeosuJeollanam-do, South Korea1 28.714 January13.02.2×
MungyeongGyeongsangbuk-do, South Korea2 33.013 January15.02.2×
OsanGyeonggi-do, South Korea2 40.414 January18.42.2×
WaegwanGyeongsangbuk-do, South Korea2 38.313 January17.52.2×
Guri-siGyeonggi-do, South Korea2 41.914 January19.22.2×
Seongnam-siGyeonggi-do, South Korea2 36.414 January16.72.2×
YesanChungcheongnam-do, South Korea1 38.213 January17.62.2×
KuryeJeollanam-do, South Korea1 26.014 January12.02.2×
YecheonGyeongsangbuk-do, South Korea2 31.813 January14.72.2×
GangneungGangwon-do, South Korea1 31.514 January14.62.2×
IksanJeollabuk-do, South Korea1 37.913 January17.62.2×
YŏnmuChungcheongnam-do, South Korea1 40.213 January18.72.1×
GoseongGyeongsangnam-do, South Korea1 32.514 January15.22.1×
Gyeongsan-siGyeongsangbuk-do, South Korea2 36.913 January17.32.1×
CheonanChungcheongnam-do, South Korea1 36.113 January17.02.1×
GumiGyeongsangbuk-do, South Korea1 45.913 January21.82.1×
GyeongjuGyeongsangbuk-do, South Korea2 29.614 January14.12.1×
JeonjuJeollabuk-do, South Korea1 33.614 January16.12.1×
ChungjuNorth Chungcheong, South Korea1 41.813 January20.12.1×
Cheongju-siNorth Chungcheong, South Korea1 41.713 January20.12.1×
MokpoJeollanam-do, South Korea1 34.014 January16.42.1×
YeongdongNorth Chungcheong, South Korea1 45.113 January21.82.1×
HwasunJeollanam-do, South Korea1 25.414 January12.32.1×
Ganghwa-gunIncheon, South Korea1 40.313 January19.62.1×
YeongjuGyeongsangbuk-do, South Korea1 47.213 January23.12.0×
HongseongChungcheongnam-do, South Korea1 36.613 January18.02.0×
PohangGyeongsangbuk-do, South Korea1 37.014 January18.22.0×
GongjuChungcheongnam-do, South Korea1 31.113 January15.32.0×
GunsanJeollabuk-do, South Korea1 35.314 January17.42.0×
GwangjuGyeonggi-do, South Korea1 39.313 January19.42.0×
AsanChungcheongnam-do, South Korea1 40.713 January20.12.0×

Daily means in µg/m³. Usual: the city's median for this time of year (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that.

Against other episodes in South Korea

Number 11 of 43 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 43.

Use this page

SmogRank, South Korea, January 2025: 113 cities with PM2.5 at twice their usual or more, 13 to 14 January 2025, smogrank.com/episodes/2025-01-south-korea-2 (accessed 2 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.