SmogRank / Episodes / South Korea

South Korea, September 2026

For 21 days, from 1 to 21 September 2026, 132 cities in South Korea had PM2.5 at least twice their usual for the time of year. The worst reading was Nangen, Jeollabuk-do, South Korea: 1,270.0 µg/m³ on 16 September, about 140× its usual 9.1.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached132in 1 country
Days211 to 21 September 2026
Worst day2 September126 cities counted
Furthest above usual252×Kunwi

Day by day

2 September 126 cities at twice their usual or more
DaeguGyeongsan-siTsushimaIkiMatsuuraKaratsuSaseboImarichō-kōItoshimaMaebaru-chūōKogaSaikaiMunakataTakuFukuokaTakeoUreshinomachi-shimojukuKogaWakasugiHigashigōKasugaNakamaKashimaNōgataKanzakimachi-kanzakiSagaŌmuraTogitsuIizukaKitakyushuShimonosekiTosuOgōriNagatoYanagawaTagawaIsahayaKandaMineTanushimarumachi-toyokiYukuhashiŌmutaUkihaOnodaYameAraoHagiUbeTamanaBuzenHitaYamagaYamaguchiNakatsuUekimachi-mōnoKikuchiHōfuMasudaŌzuAsoShūnanHamadaYufuKudamatsuHijiBeppuGōtsuchōKunisakiHikariŌitaTsurusakiYanaiŌtakeIwakuniMieŌdachō-ōdaHiroshimaGionYaeTsukumiuraIzumoSaikiKureHigashihiroshimaYawatahamaIyoMatsuyamaUwajimaHwadoGumiAnsan-siGimpo-siUlsanCheonanIncheonPyeongtaekSantyokuPohangChinch'ŏnChungjuChangwonNaesŏSuwonGuri-siUijeongbu-siGwangyangOsanSeoulGoyang-siYeongjuBusanKwangyangYeonilSuncheonYeosuKimhaeGwangjuAndongGijangSeongnam-siBucheon-siWŏnjuDaejeonDonghae CityMungyeongGyeongjuSangjuUngsangJangseongHayangGanghwa-gunMasanKimjeIcheon-siHwacheonSeonghwanGoseongTongyeongNamyangjuWanjuAsanHaenamMunsanYangsanBuanGangneungHanamGwangmyeongBuyeoBoryeongTaesal-liNonsanWaegwanYeojuGunsanYŏnmuHongseongAnyang-siNajuGwangjuImsilSejongSinanGimcheonSinhyeonJangheungMuanNamsaBoseongChinjuSokchoIksanKoesanJungpyongMokpoNeietsuYesanJeonjuYangp'yŏngChangnyeongTangjinChangsuJeongeupYecheonHongch’ŏnCheorwonEisenMiryangHwawŏnSeosanYeonggwangHwaseong-siChuncheonPubalNangenGeojeKuryeWabuHwasunYeongdongCheongsong gunOkcheonJumunjinJinan-gunYeongamJeju CityCheongju-siYangguSeogwipoHadongKoch'angGongjuAnseongGapyeongGaigeturiKinzanT’aebaekKosongYangjuKunwi
29 Aug1 Sep261014182224
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

NangenNangen, 29 August: 3.7 µg/m³, 0.4× usualNangen, 30 August: 2.5 µg/m³, 0.3× usualNangen, 31 August: 4.5 µg/m³, 0.5× usualNangen, 1 September: 423.0 µg/m³, 46× usualNangen, 2 September: 424.0 µg/m³, 47× usualNangen, 3 September: 10.9 µg/m³, 1.2× usualNangen, 4 September: 9.0 µg/m³, 1.0× usualNangen, 5 September: 7.7 µg/m³, 0.8× usualNangen, 6 September: 426.0 µg/m³, 47× usualNangen, 7 September: 431.0 µg/m³, 47× usualNangen, 8 September: 12.0 µg/m³, 1.3× usualNangen, 9 September: 1,260.0 µg/m³, 138× usualNangen, 10 September: 11.1 µg/m³, 1.2× usualNangen, 11 September: 844.0 µg/m³, 93× usualNangen, 12 September: 15.4 µg/m³, 1.7× usualNangen, 13 September: 433.0 µg/m³, 48× usualNangen, 14 September: 438.0 µg/m³, 48× usualNangen, 15 September: 441.0 µg/m³, 48× usualNangen, 16 September: 1,270.0 µg/m³, 140× usualNangen, 17 September: 12.5 µg/m³, 1.4× usualNangen, 18 September: 843.0 µg/m³, 93× usualNangen, 19 September: 10.0 µg/m³, 1.1× usualNangen, 20 September: 9.1 µg/m³, 1.0× usualNangen, 21 September: 427.0 µg/m³, 47× usualNangen, 22 September: 12.7 µg/m³, 1.4× usualNangen, 23 September: 14.8 µg/m³, 1.6× usualNangen, 24 September: 16.1 µg/m³, 1.8× usualChangnyeongChangnyeong, 29 August: 4.2 µg/m³, 0.4× usualChangnyeong, 30 August: 3.0 µg/m³, 0.3× usualChangnyeong, 31 August: 3.6 µg/m³, 0.3× usualChangnyeong, 1 September: 1,260.0 µg/m³, 120× usualChangnyeong, 2 September: 426.0 µg/m³, 41× usualChangnyeong, 3 September: 12.8 µg/m³, 1.2× usualChangnyeong, 4 September: 5.0 µg/m³, 0.5× usualChangnyeong, 5 September: 4.6 µg/m³, 0.4× usualChangnyeong, 6 September: 8.6 µg/m³, 0.8× usualChangnyeong, 7 September: 10.3 µg/m³, 1.0× usualChangnyeong, 8 September: 6.3 µg/m³, 0.6× usualChangnyeong, 9 September: 837.0 µg/m³, 80× usualChangnyeong, 10 September: 5.0 µg/m³, 0.5× usualChangnyeong, 11 September: 7.8 µg/m³, 0.7× usualChangnyeong, 12 September: 11.5 µg/m³, 1.1× usualChangnyeong, 13 September: 15.4 µg/m³, 1.5× usualChangnyeong, 14 September: 17.5 µg/m³, 1.7× usualChangnyeong, 15 September: 17.3 µg/m³, 1.6× usualChangnyeong, 16 September: 843.0 µg/m³, 80× usualChangnyeong, 17 September: 4.7 µg/m³, 0.4× usualChangnyeong, 18 September: 7.3 µg/m³, 0.7× usualChangnyeong, 19 September: 6.5 µg/m³, 0.6× usualChangnyeong, 20 September: 8.3 µg/m³, 0.8× usualChangnyeong, 21 September: 9.6 µg/m³, 0.9× usualChangnyeong, 22 September: 9.9 µg/m³, 0.9× usualChangnyeong, 23 September: 9.5 µg/m³, 0.9× usualChangnyeong, 24 September: 14.5 µg/m³, 1.4× usualSinhyeonSinhyeon, 29 August: 627.6 µg/m³, 52× usualSinhyeon, 30 August: 4.4 µg/m³, 0.4× usualSinhyeon, 31 August: 4.8 µg/m³, 0.4× usualSinhyeon, 1 September: 1,260.0 µg/m³, 105× usualSinhyeon, 2 September: 428.0 µg/m³, 36× usualSinhyeon, 3 September: 636.5 µg/m³, 53× usualSinhyeon, 4 September: 8.6 µg/m³, 0.7× usualSinhyeon, 5 September: 6.3 µg/m³, 0.5× usualSinhyeon, 6 September: 12.6 µg/m³, 1.1× usualSinhyeon, 7 September: 637.0 µg/m³, 53× usualSinhyeon, 8 September: 426.0 µg/m³, 36× usualSinhyeon, 9 September: 10.5 µg/m³, 0.9× usualSinhyeon, 10 September: 9.5 µg/m³, 0.8× usualSinhyeon, 11 September: 8.6 µg/m³, 0.7× usualSinhyeon, 12 September: 425.5 µg/m³, 35× usualSinhyeon, 13 September: 427.2 µg/m³, 36× usualSinhyeon, 14 September: 15.8 µg/m³, 1.3× usualSinhyeon, 15 September: 15.7 µg/m³, 1.3× usualSinhyeon, 16 September: 217.9 µg/m³, 18× usualSinhyeon, 17 September: 7.3 µg/m³, 0.6× usualSinhyeon, 18 September: 633.5 µg/m³, 53× usualSinhyeon, 19 September: 10.9 µg/m³, 0.9× usualSinhyeon, 20 September: 220.1 µg/m³, 18× usualSinhyeon, 21 September: 13.6 µg/m³, 1.1× usualSinhyeon, 22 September: 12.6 µg/m³, 1.1× usualSinhyeon, 23 September: 9.5 µg/m³, 0.8× usualSinhyeon, 24 September: 14.3 µg/m³, 1.2× usualSeogwipoSeogwipo, 29 August: 213.8 µg/m³, 27× usualSeogwipo, 30 August: 213.4 µg/m³, 27× usualSeogwipo, 31 August: 4.1 µg/m³, 0.5× usualSeogwipo, 1 September: 1,043.5 µg/m³, 132× usualSeogwipo, 2 September: 1,260.0 µg/m³, 159× usualSeogwipo, 3 September: 8.7 µg/m³, 1.1× usualSeogwipo, 4 September: 8.6 µg/m³, 1.1× usualSeogwipo, 5 September: 5.6 µg/m³, 0.7× usualSeogwipo, 6 September: 10.2 µg/m³, 1.3× usualSeogwipo, 7 September: 12.2 µg/m³, 1.5× usualSeogwipo, 8 September: 12.3 µg/m³, 1.6× usualSeogwipo, 9 September: 10.3 µg/m³, 1.3× usualSeogwipo, 10 September: 1,050.0 µg/m³, 133× usualSeogwipo, 11 September: 8.3 µg/m³, 1.1× usualSeogwipo, 12 September: 8.5 µg/m³, 1.1× usualSeogwipo, 13 September: 6.3 µg/m³, 0.8× usualSeogwipo, 14 September: 1,260.0 µg/m³, 159× usualSeogwipo, 15 September: 222.2 µg/m³, 28× usualSeogwipo, 16 September: 1,051.5 µg/m³, 133× usualSeogwipo, 17 September: 7.2 µg/m³, 0.9× usualSeogwipo, 18 September: 8.7 µg/m³, 1.1× usualSeogwipo, 19 September: 8.9 µg/m³, 1.1× usualSeogwipo, 20 September: 8.8 µg/m³, 1.1× usualSeogwipo, 21 September: 11.4 µg/m³, 1.4× usualSeogwipo, 22 September: 10.6 µg/m³, 1.3× usualSeogwipo, 23 September: 7.4 µg/m³, 0.9× usualSeogwipo, 24 September: 12.8 µg/m³, 1.6× usualMiryangMiryang, 29 August: 838.0 µg/m³, 84× usualMiryang, 30 August: 5.5 µg/m³, 0.6× usualMiryang, 31 August: 420.0 µg/m³, 42× usualMiryang, 1 September: 423.0 µg/m³, 42× usualMiryang, 2 September: 1,260.0 µg/m³, 126× usualMiryang, 3 September: 15.8 µg/m³, 1.6× usualMiryang, 4 September: 7.3 µg/m³, 0.7× usualMiryang, 5 September: 5.4 µg/m³, 0.5× usualMiryang, 6 September: 10.3 µg/m³, 1.0× usualMiryang, 7 September: 12.5 µg/m³, 1.3× usualMiryang, 8 September: 7.1 µg/m³, 0.7× usualMiryang, 9 September: 840.0 µg/m³, 84× usualMiryang, 10 September: 423.0 µg/m³, 42× usualMiryang, 11 September: 839.0 µg/m³, 84× usualMiryang, 12 September: 425.0 µg/m³, 43× usualMiryang, 13 September: no readingMiryang, 14 September: no readingMiryang, 15 September: 14.4 µg/m³, 1.4× usualMiryang, 16 September: 842.0 µg/m³, 84× usualMiryang, 17 September: 5.8 µg/m³, 0.6× usualMiryang, 18 September: 1,260.0 µg/m³, 126× usualMiryang, 19 September: 842.0 µg/m³, 84× usualMiryang, 20 September: 842.0 µg/m³, 84× usualMiryang, 21 September: 844.0 µg/m³, 84× usualMiryang, 22 September: 10.6 µg/m³, 1.1× usualMiryang, 23 September: 8.0 µg/m³, 0.8× usualMiryang, 24 September: 15.3 µg/m³, 1.5× usualGongjuGongju, 29 August: 5.0 µg/m³, 0.7× usualGongju, 30 August: 6.6 µg/m³, 0.9× usualGongju, 31 August: 3.1 µg/m³, 0.4× usualGongju, 1 September: 1,250.0 µg/m³, 164× usualGongju, 2 September: 840.0 µg/m³, 111× usualGongju, 3 September: 9.5 µg/m³, 1.3× usualGongju, 4 September: 5.1 µg/m³, 0.7× usualGongju, 5 September: 4.5 µg/m³, 0.6× usualGongju, 6 September: 4.9 µg/m³, 0.6× usualGongju, 7 September: 7.3 µg/m³, 1.0× usualGongju, 8 September: 8.8 µg/m³, 1.2× usualGongju, 9 September: 5.3 µg/m³, 0.7× usualGongju, 10 September: 5.9 µg/m³, 0.8× usualGongju, 11 September: 7.6 µg/m³, 1.0× usualGongju, 12 September: 10.6 µg/m³, 1.4× usualGongju, 13 September: 14.7 µg/m³, 1.9× usualGongju, 14 September: 15.2 µg/m³, 2.0× usualGongju, 15 September: 9.5 µg/m³, 1.3× usualGongju, 16 September: 8.7 µg/m³, 1.1× usualGongju, 17 September: 4.4 µg/m³, 0.6× usualGongju, 18 September: 1,250.0 µg/m³, 164× usualGongju, 19 September: 6.5 µg/m³, 0.9× usualGongju, 20 September: 7.0 µg/m³, 0.9× usualGongju, 21 September: 12.3 µg/m³, 1.6× usualGongju, 22 September: 8.8 µg/m³, 1.2× usualGongju, 23 September: 9.7 µg/m³, 1.3× usualGongju, 24 September: 15.7 µg/m³, 2.1× usualSeosanSeosan, 29 August: 425.2 µg/m³, 44× usualSeosan, 30 August: 10.9 µg/m³, 1.1× usualSeosan, 31 August: 5.3 µg/m³, 0.5× usualSeosan, 1 September: 1,250.0 µg/m³, 129× usualSeosan, 2 September: 422.0 µg/m³, 44× usualSeosan, 3 September: 427.0 µg/m³, 44× usualSeosan, 4 September: 212.4 µg/m³, 22× usualSeosan, 5 September: 835.5 µg/m³, 86× usualSeosan, 6 September: 420.7 µg/m³, 43× usualSeosan, 7 September: 632.0 µg/m³, 65× usualSeosan, 8 September: 9.7 µg/m³, 1.0× usualSeosan, 9 September: 1,250.0 µg/m³, 129× usualSeosan, 10 September: 421.0 µg/m³, 43× usualSeosan, 11 September: 10.2 µg/m³, 1.1× usualSeosan, 12 September: 15.2 µg/m³, 1.6× usualSeosan, 13 September: 19.0 µg/m³, 2.0× usualSeosan, 14 September: 636.0 µg/m³, 66× usualSeosan, 15 September: 7.4 µg/m³, 0.8× usualSeosan, 16 September: 13.0 µg/m³, 1.3× usualSeosan, 17 September: 632.9 µg/m³, 65× usualSeosan, 18 September: 215.1 µg/m³, 22× usualSeosan, 19 September: 215.5 µg/m³, 22× usualSeosan, 20 September: 217.2 µg/m³, 22× usualSeosan, 21 September: 13.8 µg/m³, 1.4× usualSeosan, 22 September: 14.9 µg/m³, 1.5× usualSeosan, 23 September: 16.3 µg/m³, 1.7× usualSeosan, 24 September: 13.1 µg/m³, 1.4× usualTangjinTangjin, 29 August: 844.0 µg/m³, 82× usualTangjin, 30 August: 14.3 µg/m³, 1.4× usualTangjin, 31 August: 422.0 µg/m³, 41× usualTangjin, 1 September: 1,250.0 µg/m³, 121× usualTangjin, 2 September: no readingTangjin, 3 September: 854.0 µg/m³, 83× usualTangjin, 4 September: 9.4 µg/m³, 0.9× usualTangjin, 5 September: 6.4 µg/m³, 0.6× usualTangjin, 6 September: 6.3 µg/m³, 0.6× usualTangjin, 7 September: 8.8 µg/m³, 0.9× usualTangjin, 8 September: 13.5 µg/m³, 1.3× usualTangjin, 9 September: 422.0 µg/m³, 41× usualTangjin, 10 September: 5.4 µg/m³, 0.5× usualTangjin, 11 September: 11.4 µg/m³, 1.1× usualTangjin, 12 September: 19.7 µg/m³, 1.9× usualTangjin, 13 September: 26.7 µg/m³, 2.6× usualTangjin, 14 September: 18.6 µg/m³, 1.8× usualTangjin, 15 September: 635.0 µg/m³, 62× usualTangjin, 16 September: 15.3 µg/m³, 1.5× usualTangjin, 17 September: 8.0 µg/m³, 0.8× usualTangjin, 18 September: 7.3 µg/m³, 0.7× usualTangjin, 19 September: 8.9 µg/m³, 0.9× usualTangjin, 20 September: 12.6 µg/m³, 1.2× usualTangjin, 21 September: 687.0 µg/m³, 67× usualTangjin, 22 September: 18.6 µg/m³, 1.8× usualTangjin, 23 September: 19.0 µg/m³, 1.8× usualTangjin, 24 September: 18.2 µg/m³, 1.8× usualKosongKosong, 29 August: 2.2 µg/m³, 0.4× usualKosong, 30 August: 2.8 µg/m³, 0.5× usualKosong, 31 August: 2.8 µg/m³, 0.5× usualKosong, 1 September: 835.0 µg/m³, 155× usualKosong, 2 September: 418.0 µg/m³, 77× usualKosong, 3 September: 1,250.0 µg/m³, 231× usualKosong, 4 September: 3.7 µg/m³, 0.7× usualKosong, 5 September: 3.0 µg/m³, 0.6× usualKosong, 6 September: 2.6 µg/m³, 0.5× usualKosong, 7 September: 4.1 µg/m³, 0.8× usualKosong, 8 September: 5.0 µg/m³, 0.9× usualKosong, 9 September: 419.0 µg/m³, 78× usualKosong, 10 September: 2.9 µg/m³, 0.5× usualKosong, 11 September: 421.0 µg/m³, 78× usualKosong, 12 September: 5.8 µg/m³, 1.1× usualKosong, 13 September: 5.6 µg/m³, 1.0× usualKosong, 14 September: 9.8 µg/m³, 1.8× usualKosong, 15 September: 5.8 µg/m³, 1.1× usualKosong, 16 September: 422.0 µg/m³, 78× usualKosong, 17 September: 837.0 µg/m³, 155× usualKosong, 18 September: 1,250.0 µg/m³, 231× usualKosong, 19 September: 3.9 µg/m³, 0.7× usualKosong, 20 September: 4.2 µg/m³, 0.8× usualKosong, 21 September: 8.2 µg/m³, 1.5× usualKosong, 22 September: 7.0 µg/m³, 1.3× usualKosong, 23 September: 4.7 µg/m³, 0.9× usualKosong, 24 September: 12.3 µg/m³, 2.3× usualYangjuYangju, 29 August: 210.2 µg/m³, 40× usualYangju, 30 August: 1.6 µg/m³, 0.3× usualYangju, 31 August: 2.0 µg/m³, 0.4× usualYangju, 1 September: 834.0 µg/m³, 160× usualYangju, 2 September: 420.0 µg/m³, 81× usualYangju, 3 September: 5.5 µg/m³, 1.1× usualYangju, 4 September: 1.8 µg/m³, 0.3× usualYangju, 5 September: no readingYangju, 6 September: 1,250.0 µg/m³, 240× usualYangju, 7 September: 1.7 µg/m³, 0.3× usualYangju, 8 September: 3.8 µg/m³, 0.7× usualYangju, 9 September: 834.0 µg/m³, 160× usualYangju, 10 September: 0.8 µg/m³, 0.2× usualYangju, 11 September: no readingYangju, 12 September: 8.7 µg/m³, 1.7× usualYangju, 13 September: 10.8 µg/m³, 2.1× usualYangju, 14 September: 11.6 µg/m³, 2.2× usualYangju, 15 September: 2.6 µg/m³, 0.5× usualYangju, 16 September: 3.2 µg/m³, 0.6× usualYangju, 17 September: 1.7 µg/m³, 0.3× usualYangju, 18 September: 1.7 µg/m³, 0.3× usualYangju, 19 September: 3.3 µg/m³, 0.6× usualYangju, 20 September: 4.0 µg/m³, 0.8× usualYangju, 21 September: 6.0 µg/m³, 1.2× usualYangju, 22 September: 6.7 µg/m³, 1.3× usualYangju, 23 September: 11.4 µg/m³, 2.2× usualYangju, 24 September: 12.8 µg/m³, 2.5× usualMasanMasan, 29 August: 421.0 µg/m³, 50× usualMasan, 30 August: no readingMasan, 31 August: 1,250.0 µg/m³, 149× usualMasan, 1 September: 628.1 µg/m³, 75× usualMasan, 2 September: 424.5 µg/m³, 51× usualMasan, 3 September: 10.3 µg/m³, 1.2× usualMasan, 4 September: 7.7 µg/m³, 0.9× usualMasan, 5 September: 213.3 µg/m³, 25× usualMasan, 6 September: 5.6 µg/m³, 0.7× usualMasan, 7 September: 219.8 µg/m³, 26× usualMasan, 8 September: 222.5 µg/m³, 26× usualMasan, 9 September: 11.4 µg/m³, 1.4× usualMasan, 10 September: 7.4 µg/m³, 0.9× usualMasan, 11 September: 10.6 µg/m³, 1.3× usualMasan, 12 September: 14.1 µg/m³, 1.7× usualMasan, 13 September: 15.2 µg/m³, 1.8× usualMasan, 14 September: 225.7 µg/m³, 27× usualMasan, 15 September: 635.9 µg/m³, 76× usualMasan, 16 September: 17.9 µg/m³, 2.1× usualMasan, 17 September: 9.6 µg/m³, 1.1× usualMasan, 18 September: 9.9 µg/m³, 1.2× usualMasan, 19 September: 9.9 µg/m³, 1.2× usualMasan, 20 September: 10.8 µg/m³, 1.3× usualMasan, 21 September: 17.4 µg/m³, 2.1× usualMasan, 22 September: 17.5 µg/m³, 2.1× usualMasan, 23 September: 17.3 µg/m³, 2.1× usualMasan, 24 September: 14.9 µg/m³, 1.8× usualBuanBuan, 29 August: 420.3 µg/m³, 43× usualBuan, 30 August: 836.0 µg/m³, 85× usualBuan, 31 August: 1,250.0 µg/m³, 128× usualBuan, 1 September: 421.0 µg/m³, 43× usualBuan, 2 September: 426.0 µg/m³, 43× usualBuan, 3 September: 432.0 µg/m³, 44× usualBuan, 4 September: 6.9 µg/m³, 0.7× usualBuan, 5 September: 5.8 µg/m³, 0.6× usualBuan, 6 September: 7.0 µg/m³, 0.7× usualBuan, 7 September: 11.2 µg/m³, 1.1× usualBuan, 8 September: 14.8 µg/m³, 1.5× usualBuan, 9 September: 10.3 µg/m³, 1.1× usualBuan, 10 September: 6.1 µg/m³, 0.6× usualBuan, 11 September: 842.0 µg/m³, 86× usualBuan, 12 September: 18.9 µg/m³, 1.9× usualBuan, 13 September: 16.9 µg/m³, 1.7× usualBuan, 14 September: 18.3 µg/m³, 1.9× usualBuan, 15 September: 12.3 µg/m³, 1.3× usualBuan, 16 September: 849.0 µg/m³, 87× usualBuan, 17 September: 8.9 µg/m³, 0.9× usualBuan, 18 September: 8.3 µg/m³, 0.8× usualBuan, 19 September: 10.9 µg/m³, 1.1× usualBuan, 20 September: 11.4 µg/m³, 1.2× usualBuan, 21 September: 440.0 µg/m³, 45× usualBuan, 22 September: 20.2 µg/m³, 2.1× usualBuan, 23 September: 19.4 µg/m³, 2.0× usualBuan, 24 September: 18.9 µg/m³, 1.9× usualAnseongAnseong, 29 August: 6.5 µg/m³, 0.9× usualAnseong, 30 August: 10.5 µg/m³, 1.4× usualAnseong, 31 August: no readingAnseong, 1 September: 419.0 µg/m³, 56× usualAnseong, 2 September: 422.0 µg/m³, 56× usualAnseong, 3 September: 422.0 µg/m³, 56× usualAnseong, 4 September: 418.0 µg/m³, 56× usualAnseong, 5 September: 1,250.0 µg/m³, 167× usualAnseong, 6 September: 836.0 µg/m³, 111× usualAnseong, 7 September: 5.0 µg/m³, 0.7× usualAnseong, 8 September: 4.6 µg/m³, 0.6× usualAnseong, 9 September: 419.0 µg/m³, 56× usualAnseong, 10 September: no readingAnseong, 11 September: 5.5 µg/m³, 0.7× usualAnseong, 12 September: 9.9 µg/m³, 1.3× usualAnseong, 13 September: 14.4 µg/m³, 1.9× usualAnseong, 14 September: 17.2 µg/m³, 2.3× usualAnseong, 15 September: 9.8 µg/m³, 1.3× usualAnseong, 16 September: 9.2 µg/m³, 1.2× usualAnseong, 17 September: 837.0 µg/m³, 112× usualAnseong, 18 September: 2.8 µg/m³, 0.4× usualAnseong, 19 September: 4.2 µg/m³, 0.6× usualAnseong, 20 September: 4.3 µg/m³, 0.6× usualAnseong, 21 September: 7.3 µg/m³, 1.0× usualAnseong, 22 September: 9.0 µg/m³, 1.2× usualAnseong, 23 September: 9.7 µg/m³, 1.3× usualAnseong, 24 September: 15.5 µg/m³, 2.1× usualSeonghwanSeonghwan, 29 August: 13.3 µg/m³, 1.0× usualSeonghwan, 30 August: 18.2 µg/m³, 1.4× usualSeonghwan, 31 August: 7.3 µg/m³, 0.5× usualSeonghwan, 1 September: 840.0 µg/m³, 63× usualSeonghwan, 2 September: 429.0 µg/m³, 32× usualSeonghwan, 3 September: 222.1 µg/m³, 17× usualSeonghwan, 4 September: 7.4 µg/m³, 0.6× usualSeonghwan, 5 September: 8.1 µg/m³, 0.6× usualSeonghwan, 6 September: 6.6 µg/m³, 0.5× usualSeonghwan, 7 September: 11.1 µg/m³, 0.8× usualSeonghwan, 8 September: 1,053.5 µg/m³, 79× usualSeonghwan, 9 September: 6.7 µg/m³, 0.5× usualSeonghwan, 10 September: 7.2 µg/m³, 0.5× usualSeonghwan, 11 September: 13.8 µg/m³, 1.0× usualSeonghwan, 12 September: 20.5 µg/m³, 1.5× usualSeonghwan, 13 September: 27.3 µg/m³, 2.1× usualSeonghwan, 14 September: 23.4 µg/m³, 1.8× usualSeonghwan, 15 September: 19.8 µg/m³, 1.5× usualSeonghwan, 16 September: 22.4 µg/m³, 1.7× usualSeonghwan, 17 September: 11.3 µg/m³, 0.8× usualSeonghwan, 18 September: 428.0 µg/m³, 32× usualSeonghwan, 19 September: 10.9 µg/m³, 0.8× usualSeonghwan, 20 September: 11.5 µg/m³, 0.9× usualSeonghwan, 21 September: 18.6 µg/m³, 1.4× usualSeonghwan, 22 September: 22.3 µg/m³, 1.7× usualSeonghwan, 23 September: 18.3 µg/m³, 1.4× usualSeonghwan, 24 September: 21.8 µg/m³, 1.6× usualChinjuChinju, 29 August: 2.8 µg/m³, 0.3× usualChinju, 30 August: 211.9 µg/m³, 22× usualChinju, 31 August: 836.0 µg/m³, 85× usualChinju, 1 September: 420.5 µg/m³, 43× usualChinju, 2 September: 425.5 µg/m³, 43× usualChinju, 3 September: 9.6 µg/m³, 1.0× usualChinju, 4 September: 4.3 µg/m³, 0.4× usualChinju, 5 September: 3.5 µg/m³, 0.4× usualChinju, 6 September: 6.1 µg/m³, 0.6× usualChinju, 7 September: 1,052.0 µg/m³, 107× usualChinju, 8 September: 7.2 µg/m³, 0.7× usualChinju, 9 September: 4.6 µg/m³, 0.5× usualChinju, 10 September: 4.6 µg/m³, 0.5× usualChinju, 11 September: 6.4 µg/m³, 0.7× usualChinju, 12 September: 8.3 µg/m³, 0.8× usualChinju, 13 September: 10.6 µg/m³, 1.1× usualChinju, 14 September: 12.0 µg/m³, 1.2× usualChinju, 15 September: 14.4 µg/m³, 1.5× usualChinju, 16 September: 10.0 µg/m³, 1.0× usualChinju, 17 September: 838.0 µg/m³, 86× usualChinju, 18 September: 6.6 µg/m³, 0.7× usualChinju, 19 September: 6.5 µg/m³, 0.7× usualChinju, 20 September: 6.0 µg/m³, 0.6× usualChinju, 21 September: 841.5 µg/m³, 86× usualChinju, 22 September: 9.5 µg/m³, 1.0× usualChinju, 23 September: 8.0 µg/m³, 0.8× usualChinju, 24 September: 11.0 µg/m³, 1.1× usualHongseongHongseong, 29 August: 424.2 µg/m³, 40× usualHongseong, 30 August: 13.9 µg/m³, 1.3× usualHongseong, 31 August: 3.9 µg/m³, 0.4× usualHongseong, 1 September: 838.0 µg/m³, 80× usualHongseong, 2 September: 427.0 µg/m³, 41× usualHongseong, 3 September: 15.7 µg/m³, 1.5× usualHongseong, 4 September: 5.5 µg/m³, 0.5× usualHongseong, 5 September: 7.4 µg/m³, 0.7× usualHongseong, 6 September: 214.0 µg/m³, 20× usualHongseong, 7 September: 9.1 µg/m³, 0.9× usualHongseong, 8 September: 13.7 µg/m³, 1.3× usualHongseong, 9 September: 7.8 µg/m³, 0.7× usualHongseong, 10 September: 424.6 µg/m³, 40× usualHongseong, 11 September: 221.5 µg/m³, 21× usualHongseong, 12 September: 19.7 µg/m³, 1.9× usualHongseong, 13 September: 21.1 µg/m³, 2.0× usualHongseong, 14 September: 17.3 µg/m³, 1.6× usualHongseong, 15 September: 9.7 µg/m³, 0.9× usualHongseong, 16 September: 17.3 µg/m³, 1.6× usualHongseong, 17 September: 8.4 µg/m³, 0.8× usualHongseong, 18 September: 1,050.0 µg/m³, 100× usualHongseong, 19 September: 10.9 µg/m³, 1.0× usualHongseong, 20 September: 12.1 µg/m³, 1.2× usualHongseong, 21 September: 17.8 µg/m³, 1.7× usualHongseong, 22 September: 18.9 µg/m³, 1.8× usualHongseong, 23 September: 17.4 µg/m³, 1.7× usualHongseong, 24 September: 16.9 µg/m³, 1.6× usualKimjeKimje, 29 August: 6.4 µg/m³, 0.6× usualKimje, 30 August: 836.0 µg/m³, 74× usualKimje, 31 August: 420.0 µg/m³, 37× usualKimje, 1 September: 840.0 µg/m³, 74× usualKimje, 2 September: 426.0 µg/m³, 38× usualKimje, 3 September: 18.3 µg/m³, 1.6× usualKimje, 4 September: 425.0 µg/m³, 38× usualKimje, 5 September: 9.0 µg/m³, 0.8× usualKimje, 6 September: 8.0 µg/m³, 0.7× usualKimje, 7 September: 15.4 µg/m³, 1.4× usualKimje, 8 September: 17.6 µg/m³, 1.6× usualKimje, 9 September: 11.0 µg/m³, 1.0× usualKimje, 10 September: 9.3 µg/m³, 0.8× usualKimje, 11 September: 845.0 µg/m³, 75× usualKimje, 12 September: 20.3 µg/m³, 1.8× usualKimje, 13 September: 20.7 µg/m³, 1.8× usualKimje, 14 September: 24.6 µg/m³, 2.2× usualKimje, 15 September: 18.0 µg/m³, 1.6× usualKimje, 16 September: 851.0 µg/m³, 75× usualKimje, 17 September: 10.8 µg/m³, 1.0× usualKimje, 18 September: 11.5 µg/m³, 1.0× usualKimje, 19 September: 13.3 µg/m³, 1.2× usualKimje, 20 September: 14.8 µg/m³, 1.3× usualKimje, 21 September: 857.0 µg/m³, 76× usualKimje, 22 September: 24.2 µg/m³, 2.1× usualKimje, 23 September: 21.5 µg/m³, 1.9× usualKimje, 24 September: 20.5 µg/m³, 1.8× usualYesanYesan, 29 August: 11.0 µg/m³, 1.0× usualYesan, 30 August: 19.1 µg/m³, 1.8× usualYesan, 31 August: 5.8 µg/m³, 0.5× usualYesan, 1 September: 5.9 µg/m³, 0.5× usualYesan, 2 September: 1,270.0 µg/m³, 118× usualYesan, 3 September: 21.0 µg/m³, 1.9× usualYesan, 4 September: 7.9 µg/m³, 0.7× usualYesan, 5 September: 7.7 µg/m³, 0.7× usualYesan, 6 September: 6.2 µg/m³, 0.6× usualYesan, 7 September: 8.9 µg/m³, 0.8× usualYesan, 8 September: 16.4 µg/m³, 1.5× usualYesan, 9 September: 840.0 µg/m³, 78× usualYesan, 10 September: 7.9 µg/m³, 0.7× usualYesan, 11 September: 11.0 µg/m³, 1.0× usualYesan, 12 September: 22.2 µg/m³, 2.1× usualYesan, 13 September: 26.0 µg/m³, 2.4× usualYesan, 14 September: 21.9 µg/m³, 2.0× usualYesan, 15 September: 11.3 µg/m³, 1.0× usualYesan, 16 September: 13.3 µg/m³, 1.2× usualYesan, 17 September: 7.6 µg/m³, 0.7× usualYesan, 18 September: 840.0 µg/m³, 78× usualYesan, 19 September: 9.9 µg/m³, 0.9× usualYesan, 20 September: 14.0 µg/m³, 1.3× usualYesan, 21 September: 17.9 µg/m³, 1.7× usualYesan, 22 September: 17.3 µg/m³, 1.6× usualYesan, 23 September: 19.3 µg/m³, 1.8× usualYesan, 24 September: 19.6 µg/m³, 1.8× usualMokpoMokpo, 29 August: 5.7 µg/m³, 0.5× usualMokpo, 30 August: 420.9 µg/m³, 38× usualMokpo, 31 August: 5.3 µg/m³, 0.5× usualMokpo, 1 September: 6.3 µg/m³, 0.6× usualMokpo, 2 September: 424.5 µg/m³, 38× usualMokpo, 3 September: 222.6 µg/m³, 20× usualMokpo, 4 September: 8.4 µg/m³, 0.8× usualMokpo, 5 September: 8.7 µg/m³, 0.8× usualMokpo, 6 September: 217.4 µg/m³, 19× usualMokpo, 7 September: 430.1 µg/m³, 38× usualMokpo, 8 September: 15.0 µg/m³, 1.3× usualMokpo, 9 September: 15.0 µg/m³, 1.3× usualMokpo, 10 September: 218.6 µg/m³, 20× usualMokpo, 11 September: 220.1 µg/m³, 20× usualMokpo, 12 September: 16.6 µg/m³, 1.5× usualMokpo, 13 September: 17.3 µg/m³, 1.5× usualMokpo, 14 September: 26.6 µg/m³, 2.4× usualMokpo, 15 September: 21.2 µg/m³, 1.9× usualMokpo, 16 September: 26.8 µg/m³, 2.4× usualMokpo, 17 September: 18.1 µg/m³, 1.6× usualMokpo, 18 September: 18.0 µg/m³, 1.6× usualMokpo, 19 September: 1,270.0 µg/m³, 113× usualMokpo, 20 September: 434.0 µg/m³, 39× usualMokpo, 21 September: 26.5 µg/m³, 2.4× usualMokpo, 22 September: 21.0 µg/m³, 1.9× usualMokpo, 23 September: 18.2 µg/m³, 1.6× usualMokpo, 24 September: 16.2 µg/m³, 1.4× usualGaigeturiGaigeturi, 29 August: no readingGaigeturi, 30 August: 419.0 µg/m³, 57× usualGaigeturi, 31 August: 626.3 µg/m³, 86× usualGaigeturi, 1 September: no readingGaigeturi, 2 September: 1,260.0 µg/m³, 173× usualGaigeturi, 3 September: 1,260.0 µg/m³, 173× usualGaigeturi, 4 September: 632.0 µg/m³, 87× usualGaigeturi, 5 September: 5.5 µg/m³, 0.8× usualGaigeturi, 6 September: 8.5 µg/m³, 1.2× usualGaigeturi, 7 September: 12.3 µg/m³, 1.7× usualGaigeturi, 8 September: 9.8 µg/m³, 1.3× usualGaigeturi, 9 September: 425.3 µg/m³, 58× usualGaigeturi, 10 September: 5.7 µg/m³, 0.8× usualGaigeturi, 11 September: 215.0 µg/m³, 29× usualGaigeturi, 12 September: 7.8 µg/m³, 1.1× usualGaigeturi, 13 September: 6.6 µg/m³, 0.9× usualGaigeturi, 14 September: 1,260.0 µg/m³, 173× usualGaigeturi, 15 September: 8.6 µg/m³, 1.2× usualGaigeturi, 16 September: 9.5 µg/m³, 1.3× usualGaigeturi, 17 September: 628.3 µg/m³, 86× usualGaigeturi, 18 September: 5.7 µg/m³, 0.8× usualGaigeturi, 19 September: 8.2 µg/m³, 1.1× usualGaigeturi, 20 September: 6.8 µg/m³, 0.9× usualGaigeturi, 21 September: 11.7 µg/m³, 1.6× usualGaigeturi, 22 September: 8.4 µg/m³, 1.2× usualGaigeturi, 23 September: 6.3 µg/m³, 0.9× usualGaigeturi, 24 September: 9.3 µg/m³, 1.3× usualJeju CityJeju City, 29 August: 4.6 µg/m³, 0.6× usualJeju City, 30 August: 3.7 µg/m³, 0.5× usualJeju City, 31 August: 3.3 µg/m³, 0.4× usualJeju City, 1 September: 4.4 µg/m³, 0.6× usualJeju City, 2 September: 1,260.0 µg/m³, 158× usualJeju City, 3 September: 10.2 µg/m³, 1.3× usualJeju City, 4 September: 7.9 µg/m³, 1.0× usualJeju City, 5 September: 6.6 µg/m³, 0.8× usualJeju City, 6 September: 10.4 µg/m³, 1.3× usualJeju City, 7 September: 13.2 µg/m³, 1.7× usualJeju City, 8 September: 11.0 µg/m³, 1.4× usualJeju City, 9 September: 8.8 µg/m³, 1.1× usualJeju City, 10 September: 6.6 µg/m³, 0.8× usualJeju City, 11 September: 6.5 µg/m³, 0.8× usualJeju City, 12 September: 8.7 µg/m³, 1.1× usualJeju City, 13 September: 6.6 µg/m³, 0.8× usualJeju City, 14 September: 1,260.0 µg/m³, 158× usualJeju City, 15 September: 11.3 µg/m³, 1.4× usualJeju City, 16 September: 10.3 µg/m³, 1.3× usualJeju City, 17 September: 6.3 µg/m³, 0.8× usualJeju City, 18 September: 7.2 µg/m³, 0.9× usualJeju City, 19 September: 8.9 µg/m³, 1.1× usualJeju City, 20 September: 8.2 µg/m³, 1.0× usualJeju City, 21 September: 10.3 µg/m³, 1.3× usualJeju City, 22 September: 9.2 µg/m³, 1.2× usualJeju City, 23 September: 7.7 µg/m³, 1.0× usualJeju City, 24 September: 11.5 µg/m³, 1.4× usualYeongamYeongam, 29 August: 6.7 µg/m³, 0.8× usualYeongam, 30 August: 6.2 µg/m³, 0.8× usualYeongam, 31 August: 7.7 µg/m³, 1.0× usualYeongam, 1 September: 9.7 µg/m³, 1.2× usualYeongam, 2 September: 1,260.0 µg/m³, 158× usualYeongam, 3 September: 11.2 µg/m³, 1.4× usualYeongam, 4 September: 5.6 µg/m³, 0.7× usualYeongam, 5 September: 5.1 µg/m³, 0.6× usualYeongam, 6 September: 5.9 µg/m³, 0.7× usualYeongam, 7 September: 9.3 µg/m³, 1.2× usualYeongam, 8 September: 12.8 µg/m³, 1.6× usualYeongam, 9 September: 9.4 µg/m³, 1.2× usualYeongam, 10 September: 7.7 µg/m³, 1.0× usualYeongam, 11 September: 8.3 µg/m³, 1.0× usualYeongam, 12 September: 9.8 µg/m³, 1.2× usualYeongam, 13 September: 11.9 µg/m³, 1.5× usualYeongam, 14 September: 15.7 µg/m³, 2.0× usualYeongam, 15 September: 13.1 µg/m³, 1.6× usualYeongam, 16 September: 14.8 µg/m³, 1.9× usualYeongam, 17 September: 9.1 µg/m³, 1.1× usualYeongam, 18 September: 9.1 µg/m³, 1.1× usualYeongam, 19 September: 7.0 µg/m³, 0.9× usualYeongam, 20 September: 9.5 µg/m³, 1.2× usualYeongam, 21 September: 13.5 µg/m³, 1.7× usualYeongam, 22 September: 13.4 µg/m³, 1.7× usualYeongam, 23 September: 12.5 µg/m³, 1.6× usualYeongam, 24 September: 13.1 µg/m³, 1.6× usualYeongdongYeongdong, 29 August: no readingYeongdong, 30 August: no readingYeongdong, 31 August: 419.0 µg/m³, 49× usualYeongdong, 1 September: 3.8 µg/m³, 0.4× usualYeongdong, 2 September: 1,260.0 µg/m³, 147× usualYeongdong, 3 September: 9.3 µg/m³, 1.1× usualYeongdong, 4 September: 4.2 µg/m³, 0.5× usualYeongdong, 5 September: 3.3 µg/m³, 0.4× usualYeongdong, 6 September: 5.4 µg/m³, 0.6× usualYeongdong, 7 September: 9.8 µg/m³, 1.1× usualYeongdong, 8 September: 8.5 µg/m³, 1.0× usualYeongdong, 9 September: 5.2 µg/m³, 0.6× usualYeongdong, 10 September: no readingYeongdong, 11 September: 5.1 µg/m³, 0.6× usualYeongdong, 12 September: 6.7 µg/m³, 0.8× usualYeongdong, 13 September: 11.5 µg/m³, 1.3× usualYeongdong, 14 September: 16.0 µg/m³, 1.9× usualYeongdong, 15 September: 17.7 µg/m³, 2.1× usualYeongdong, 16 September: 1,260.0 µg/m³, 147× usualYeongdong, 17 September: 3.8 µg/m³, 0.4× usualYeongdong, 18 September: 5.3 µg/m³, 0.6× usualYeongdong, 19 September: 8.0 µg/m³, 0.9× usualYeongdong, 20 September: 6.8 µg/m³, 0.8× usualYeongdong, 21 September: 8.0 µg/m³, 0.9× usualYeongdong, 22 September: 7.3 µg/m³, 0.8× usualYeongdong, 23 September: 6.8 µg/m³, 0.8× usualYeongdong, 24 September: 12.5 µg/m³, 1.5× usualHwawŏnHwawŏn, 29 August: 3.4 µg/m³, 0.3× usualHwawŏn, 30 August: 2.5 µg/m³, 0.3× usualHwawŏn, 31 August: 3.5 µg/m³, 0.4× usualHwawŏn, 1 September: 4.9 µg/m³, 0.5× usualHwawŏn, 2 September: 1,260.0 µg/m³, 127× usualHwawŏn, 3 September: 6.2 µg/m³, 0.6× usualHwawŏn, 4 September: 4.8 µg/m³, 0.5× usualHwawŏn, 5 September: 3.3 µg/m³, 0.3× usualHwawŏn, 6 September: 6.7 µg/m³, 0.7× usualHwawŏn, 7 September: 9.3 µg/m³, 0.9× usualHwawŏn, 8 September: 8.0 µg/m³, 0.8× usualHwawŏn, 9 September: 4.9 µg/m³, 0.5× usualHwawŏn, 10 September: 838.0 µg/m³, 85× usualHwawŏn, 11 September: 5.7 µg/m³, 0.6× usualHwawŏn, 12 September: 8.9 µg/m³, 0.9× usualHwawŏn, 13 September: 11.6 µg/m³, 1.2× usualHwawŏn, 14 September: 16.5 µg/m³, 1.7× usualHwawŏn, 15 September: 13.9 µg/m³, 1.4× usualHwawŏn, 16 September: 841.0 µg/m³, 85× usualHwawŏn, 17 September: 5.9 µg/m³, 0.6× usualHwawŏn, 18 September: 5.4 µg/m³, 0.5× usualHwawŏn, 19 September: 5.9 µg/m³, 0.6× usualHwawŏn, 20 September: 7.2 µg/m³, 0.7× usualHwawŏn, 21 September: 9.5 µg/m³, 1.0× usualHwawŏn, 22 September: 9.2 µg/m³, 0.9× usualHwawŏn, 23 September: 9.1 µg/m³, 0.9× usualHwawŏn, 24 September: 13.5 µg/m³, 1.4× usualCheongju-siCheongju-si, 29 August: 8.5 µg/m³, 1.1× usualCheongju-si, 30 August: 12.3 µg/m³, 1.5× usualCheongju-si, 31 August: 839.5 µg/m³, 105× usualCheongju-si, 1 September: 4.8 µg/m³, 0.6× usualCheongju-si, 2 September: 428.0 µg/m³, 54× usualCheongju-si, 3 September: 12.6 µg/m³, 1.6× usualCheongju-si, 4 September: 5.5 µg/m³, 0.7× usualCheongju-si, 5 September: 4.3 µg/m³, 0.5× usualCheongju-si, 6 September: 5.0 µg/m³, 0.6× usualCheongju-si, 7 September: 8.3 µg/m³, 1.0× usualCheongju-si, 8 September: 7.5 µg/m³, 0.9× usualCheongju-si, 9 September: 4.7 µg/m³, 0.6× usualCheongju-si, 10 September: no readingCheongju-si, 11 September: 8.6 µg/m³, 1.1× usualCheongju-si, 12 September: 10.7 µg/m³, 1.3× usualCheongju-si, 13 September: 19.7 µg/m³, 2.5× usualCheongju-si, 14 September: 860.5 µg/m³, 108× usualCheongju-si, 15 September: 17.2 µg/m³, 2.2× usualCheongju-si, 16 September: 13.1 µg/m³, 1.6× usualCheongju-si, 17 September: 5.0 µg/m³, 0.6× usualCheongju-si, 18 September: 6.2 µg/m³, 0.8× usualCheongju-si, 19 September: 7.5 µg/m³, 0.9× usualCheongju-si, 20 September: 8.6 µg/m³, 1.1× usualCheongju-si, 21 September: 1,260.0 µg/m³, 158× usualCheongju-si, 22 September: 10.6 µg/m³, 1.3× usualCheongju-si, 23 September: 10.7 µg/m³, 1.3× usualCheongju-si, 24 September: 19.6 µg/m³, 2.5× usualGeojeGeoje, 29 August: 4.7 µg/m³, 0.5× usualGeoje, 30 August: 3.4 µg/m³, 0.4× usualGeoje, 31 August: 421.0 µg/m³, 48× usualGeoje, 1 September: 7.3 µg/m³, 0.8× usualGeoje, 2 September: 428.0 µg/m³, 49× usualGeoje, 3 September: 11.8 µg/m³, 1.3× usualGeoje, 4 September: 8.3 µg/m³, 0.9× usualGeoje, 5 September: 7.3 µg/m³, 0.8× usualGeoje, 6 September: 11.1 µg/m³, 1.3× usualGeoje, 7 September: no readingGeoje, 8 September: no readingGeoje, 9 September: 11.1 µg/m³, 1.3× usualGeoje, 10 September: 8.8 µg/m³, 1.0× usualGeoje, 11 September: 7.1 µg/m³, 0.8× usualGeoje, 12 September: 1,260.0 µg/m³, 143× usualGeoje, 13 September: 7.5 µg/m³, 0.9× usualGeoje, 14 September: 14.0 µg/m³, 1.6× usualGeoje, 15 September: 845.0 µg/m³, 96× usualGeoje, 16 September: 10.7 µg/m³, 1.2× usualGeoje, 17 September: 423.0 µg/m³, 48× usualGeoje, 18 September: 10.1 µg/m³, 1.1× usualGeoje, 19 September: 11.0 µg/m³, 1.3× usualGeoje, 20 September: 9.5 µg/m³, 1.1× usualGeoje, 21 September: 10.8 µg/m³, 1.2× usualGeoje, 22 September: 11.7 µg/m³, 1.3× usualGeoje, 23 September: 6.9 µg/m³, 0.8× usualGeoje, 24 September: 10.8 µg/m³, 1.2× usualPubalPubal, 29 August: 12.3 µg/m³, 1.4× usualPubal, 30 August: 14.8 µg/m³, 1.6× usualPubal, 31 August: 5.2 µg/m³, 0.6× usualPubal, 1 September: no readingPubal, 2 September: 428.0 µg/m³, 47× usualPubal, 3 September: 10.6 µg/m³, 1.2× usualPubal, 4 September: 6.8 µg/m³, 0.7× usualPubal, 5 September: 421.0 µg/m³, 46× usualPubal, 6 September: 6.4 µg/m³, 0.7× usualPubal, 7 September: 9.0 µg/m³, 1.0× usualPubal, 8 September: 9.2 µg/m³, 1.0× usualPubal, 9 September: 422.0 µg/m³, 46× usualPubal, 10 September: 8.6 µg/m³, 0.9× usualPubal, 11 September: 10.2 µg/m³, 1.1× usualPubal, 12 September: 16.0 µg/m³, 1.8× usualPubal, 13 September: 22.4 µg/m³, 2.5× usualPubal, 14 September: 450.0 µg/m³, 49× usualPubal, 15 September: 20.3 µg/m³, 2.2× usualPubal, 16 September: 1,260.0 µg/m³, 138× usualPubal, 17 September: 11.3 µg/m³, 1.2× usualPubal, 18 September: 8.5 µg/m³, 0.9× usualPubal, 19 September: 9.2 µg/m³, 1.0× usualPubal, 20 September: 12.1 µg/m³, 1.3× usualPubal, 21 September: 15.7 µg/m³, 1.7× usualPubal, 22 September: 14.8 µg/m³, 1.6× usualPubal, 23 September: 15.2 µg/m³, 1.7× usualPubal, 24 September: 27.2 µg/m³, 3.0× usualCheorwonCheorwon, 29 August: 8.0 µg/m³, 0.8× usualCheorwon, 30 August: 7.2 µg/m³, 0.7× usualCheorwon, 31 August: 9.3 µg/m³, 0.9× usualCheorwon, 1 September: 8.7 µg/m³, 0.9× usualCheorwon, 2 September: 427.0 µg/m³, 42× usualCheorwon, 3 September: 13.0 µg/m³, 1.3× usualCheorwon, 4 September: 10.4 µg/m³, 1.0× usualCheorwon, 5 September: 1,260.0 µg/m³, 125× usualCheorwon, 6 September: 5.6 µg/m³, 0.6× usualCheorwon, 7 September: 1,050.5 µg/m³, 104× usualCheorwon, 8 September: 12.5 µg/m³, 1.2× usualCheorwon, 9 September: 217.2 µg/m³, 22× usualCheorwon, 10 September: 8.4 µg/m³, 0.8× usualCheorwon, 11 September: 11.2 µg/m³, 1.1× usualCheorwon, 12 September: 16.8 µg/m³, 1.7× usualCheorwon, 13 September: 17.5 µg/m³, 1.7× usualCheorwon, 14 September: 19.3 µg/m³, 1.9× usualCheorwon, 15 September: 13.5 µg/m³, 1.3× usualCheorwon, 16 September: 12.4 µg/m³, 1.2× usualCheorwon, 17 September: 11.4 µg/m³, 1.1× usualCheorwon, 18 September: 218.6 µg/m³, 22× usualCheorwon, 19 September: 12.4 µg/m³, 1.2× usualCheorwon, 20 September: 13.7 µg/m³, 1.4× usualCheorwon, 21 September: 224.2 µg/m³, 22× usualCheorwon, 22 September: 20.0 µg/m³, 2.0× usualCheorwon, 23 September: 18.5 µg/m³, 1.8× usualCheorwon, 24 September: 19.9 µg/m³, 2.0× usualJeongeupJeongeup, 29 August: 4.7 µg/m³, 0.5× usualJeongeup, 30 August: 4.2 µg/m³, 0.4× usualJeongeup, 31 August: 4.7 µg/m³, 0.5× usualJeongeup, 1 September: 5.3 µg/m³, 0.5× usualJeongeup, 2 September: 426.0 µg/m³, 42× usualJeongeup, 3 September: 20.9 µg/m³, 2.0× usualJeongeup, 4 September: 1,260.0 µg/m³, 124× usualJeongeup, 5 September: 5.6 µg/m³, 0.5× usualJeongeup, 6 September: 7.2 µg/m³, 0.7× usualJeongeup, 7 September: 13.1 µg/m³, 1.3× usualJeongeup, 8 September: 15.2 µg/m³, 1.5× usualJeongeup, 9 September: 10.6 µg/m³, 1.0× usualJeongeup, 10 September: 7.5 µg/m³, 0.7× usualJeongeup, 11 September: 844.0 µg/m³, 83× usualJeongeup, 12 September: 14.8 µg/m³, 1.5× usualJeongeup, 13 September: 17.3 µg/m³, 1.7× usualJeongeup, 14 September: 22.2 µg/m³, 2.2× usualJeongeup, 15 September: 20.0 µg/m³, 2.0× usualJeongeup, 16 September: 853.5 µg/m³, 84× usualJeongeup, 17 September: 13.8 µg/m³, 1.4× usualJeongeup, 18 September: 9.9 µg/m³, 1.0× usualJeongeup, 19 September: 11.6 µg/m³, 1.1× usualJeongeup, 20 September: 13.9 µg/m³, 1.4× usualJeongeup, 21 September: 23.3 µg/m³, 2.3× usualJeongeup, 22 September: 23.4 µg/m³, 2.3× usualJeongeup, 23 September: 21.8 µg/m³, 2.1× usualJeongeup, 24 September: 20.5 µg/m³, 2.0× usualHadongHadong, 29 August: 1.1 µg/m³, 0.1× usualHadong, 30 August: 1.2 µg/m³, 0.2× usualHadong, 31 August: 836.0 µg/m³, 107× usualHadong, 1 September: 5.4 µg/m³, 0.7× usualHadong, 2 September: 425.0 µg/m³, 54× usualHadong, 3 September: 15.3 µg/m³, 2.0× usualHadong, 4 September: 5.5 µg/m³, 0.7× usualHadong, 5 September: 4.0 µg/m³, 0.5× usualHadong, 6 September: 7.5 µg/m³, 1.0× usualHadong, 7 September: 847.0 µg/m³, 109× usualHadong, 8 September: 10.3 µg/m³, 1.3× usualHadong, 9 September: 5.8 µg/m³, 0.7× usualHadong, 10 September: 4.3 µg/m³, 0.6× usualHadong, 11 September: 7.8 µg/m³, 1.0× usualHadong, 12 September: 9.9 µg/m³, 1.3× usualHadong, 13 September: 432.0 µg/m³, 55× usualHadong, 14 September: no readingHadong, 15 September: 437.0 µg/m³, 56× usualHadong, 16 September: 15.5 µg/m³, 2.0× usualHadong, 17 September: 4.8 µg/m³, 0.6× usualHadong, 18 September: 5.8 µg/m³, 0.7× usualHadong, 19 September: 8.3 µg/m³, 1.1× usualHadong, 20 September: 7.8 µg/m³, 1.0× usualHadong, 21 September: 1,260.0 µg/m³, 162× usualHadong, 22 September: 10.7 µg/m³, 1.4× usualHadong, 23 September: 10.8 µg/m³, 1.4× usualHadong, 24 September: 18.8 µg/m³, 2.4× usualEisenEisen, 29 August: 4.7 µg/m³, 0.5× usualEisen, 30 August: 1,250.0 µg/m³, 124× usualEisen, 31 August: 4.8 µg/m³, 0.5× usualEisen, 1 September: 9.2 µg/m³, 0.9× usualEisen, 2 September: 425.0 µg/m³, 42× usualEisen, 3 September: 5.7 µg/m³, 0.6× usualEisen, 4 September: 3.9 µg/m³, 0.4× usualEisen, 5 September: 3.0 µg/m³, 0.3× usualEisen, 6 September: 8.0 µg/m³, 0.8× usualEisen, 7 September: 9.5 µg/m³, 0.9× usualEisen, 8 September: 5.7 µg/m³, 0.6× usualEisen, 9 September: 4.9 µg/m³, 0.5× usualEisen, 10 September: 3.5 µg/m³, 0.3× usualEisen, 11 September: 4.6 µg/m³, 0.5× usualEisen, 12 September: 6.5 µg/m³, 0.6× usualEisen, 13 September: 8.8 µg/m³, 0.9× usualEisen, 14 September: 13.9 µg/m³, 1.4× usualEisen, 15 September: 1,260.0 µg/m³, 125× usualEisen, 16 September: 10.5 µg/m³, 1.0× usualEisen, 17 September: 8.4 µg/m³, 0.8× usualEisen, 18 September: 11.5 µg/m³, 1.1× usualEisen, 19 September: 12.5 µg/m³, 1.2× usualEisen, 20 September: 11.3 µg/m³, 1.1× usualEisen, 21 September: 13.6 µg/m³, 1.3× usualEisen, 22 September: 13.0 µg/m³, 1.3× usualEisen, 23 September: 10.5 µg/m³, 1.0× usualEisen, 24 September: 18.3 µg/m³, 1.8× usualOkcheonOkcheon, 29 August: 5.3 µg/m³, 0.6× usualOkcheon, 30 August: 420.0 µg/m³, 49× usualOkcheon, 31 August: 419.0 µg/m³, 49× usualOkcheon, 1 September: 5.1 µg/m³, 0.6× usualOkcheon, 2 September: 424.0 µg/m³, 50× usualOkcheon, 3 September: 8.6 µg/m³, 1.0× usualOkcheon, 4 September: 6.8 µg/m³, 0.8× usualOkcheon, 5 September: 6.3 µg/m³, 0.7× usualOkcheon, 6 September: 8.2 µg/m³, 1.0× usualOkcheon, 7 September: 12.2 µg/m³, 1.4× usualOkcheon, 8 September: 9.6 µg/m³, 1.1× usualOkcheon, 9 September: 1,260.0 µg/m³, 148× usualOkcheon, 10 September: no readingOkcheon, 11 September: 8.1 µg/m³, 1.0× usualOkcheon, 12 September: 10.8 µg/m³, 1.3× usualOkcheon, 13 September: 15.7 µg/m³, 1.8× usualOkcheon, 14 September: 25.8 µg/m³, 3.0× usualOkcheon, 15 September: 21.1 µg/m³, 2.5× usualOkcheon, 16 September: 15.5 µg/m³, 1.8× usualOkcheon, 17 September: 7.9 µg/m³, 0.9× usualOkcheon, 18 September: 8.7 µg/m³, 1.0× usualOkcheon, 19 September: 9.4 µg/m³, 1.1× usualOkcheon, 20 September: 9.2 µg/m³, 1.1× usualOkcheon, 21 September: 13.5 µg/m³, 1.6× usualOkcheon, 22 September: 12.1 µg/m³, 1.4× usualOkcheon, 23 September: 11.6 µg/m³, 1.4× usualOkcheon, 24 September: 19.3 µg/m³, 2.3× usualHwasunHwasun, 29 August: 5.8 µg/m³, 0.7× usualHwasun, 30 August: 421.0 µg/m³, 49× usualHwasun, 31 August: 838.0 µg/m³, 97× usualHwasun, 1 September: 6.2 µg/m³, 0.7× usualHwasun, 2 September: 424.0 µg/m³, 49× usualHwasun, 3 September: 13.4 µg/m³, 1.6× usualHwasun, 4 September: 8.0 µg/m³, 0.9× usualHwasun, 5 September: 422.0 µg/m³, 49× usualHwasun, 6 September: 1,260.0 µg/m³, 147× usualHwasun, 7 September: 12.2 µg/m³, 1.4× usualHwasun, 8 September: 11.8 µg/m³, 1.4× usualHwasun, 9 September: 9.9 µg/m³, 1.2× usualHwasun, 10 September: 839.0 µg/m³, 98× usualHwasun, 11 September: 426.0 µg/m³, 50× usualHwasun, 12 September: 843.0 µg/m³, 98× usualHwasun, 13 September: 844.0 µg/m³, 98× usualHwasun, 14 September: 845.0 µg/m³, 98× usualHwasun, 15 September: 433.0 µg/m³, 50× usualHwasun, 16 September: 15.4 µg/m³, 1.8× usualHwasun, 17 September: 423.0 µg/m³, 49× usualHwasun, 18 September: 424.0 µg/m³, 49× usualHwasun, 19 September: 425.0 µg/m³, 49× usualHwasun, 20 September: 425.0 µg/m³, 49× usualHwasun, 21 September: 428.0 µg/m³, 50× usualHwasun, 22 September: 12.6 µg/m³, 1.5× usualHwasun, 23 September: 12.1 µg/m³, 1.4× usualHwasun, 24 September: 10.4 µg/m³, 1.2× usualYeonggwangYeonggwang, 29 August: 3.9 µg/m³, 0.4× usualYeonggwang, 30 August: 2.0 µg/m³, 0.2× usualYeonggwang, 31 August: 4.1 µg/m³, 0.4× usualYeonggwang, 1 September: 5.0 µg/m³, 0.5× usualYeonggwang, 2 September: 424.0 µg/m³, 44× usualYeonggwang, 3 September: 16.8 µg/m³, 1.7× usualYeonggwang, 4 September: 10.8 µg/m³, 1.1× usualYeonggwang, 5 September: 6.7 µg/m³, 0.7× usualYeonggwang, 6 September: 7.0 µg/m³, 0.7× usualYeonggwang, 7 September: 11.3 µg/m³, 1.2× usualYeonggwang, 8 September: 1,260.0 µg/m³, 130× usualYeonggwang, 9 September: 12.6 µg/m³, 1.3× usualYeonggwang, 10 September: 6.1 µg/m³, 0.6× usualYeonggwang, 11 September: 9.2 µg/m³, 0.9× usualYeonggwang, 12 September: 16.3 µg/m³, 1.7× usualYeonggwang, 13 September: 13.7 µg/m³, 1.4× usualYeonggwang, 14 September: 18.6 µg/m³, 1.9× usualYeonggwang, 15 September: 10.0 µg/m³, 1.0× usualYeonggwang, 16 September: 15.8 µg/m³, 1.6× usualYeonggwang, 17 September: 10.2 µg/m³, 1.1× usualYeonggwang, 18 September: 8.8 µg/m³, 0.9× usualYeonggwang, 19 September: 9.7 µg/m³, 1.0× usualYeonggwang, 20 September: 11.1 µg/m³, 1.1× usualYeonggwang, 21 September: 852.0 µg/m³, 88× usualYeonggwang, 22 September: 17.2 µg/m³, 1.8× usualYeonggwang, 23 September: 17.3 µg/m³, 1.8× usualYeonggwang, 24 September: 18.0 µg/m³, 1.9× usualYecheonYecheon, 29 August: 3.7 µg/m³, 0.4× usualYecheon, 30 August: 3.7 µg/m³, 0.4× usualYecheon, 31 August: 5.0 µg/m³, 0.5× usualYecheon, 1 September: 4.9 µg/m³, 0.5× usualYecheon, 2 September: 421.0 µg/m³, 41× usualYecheon, 3 September: 6.3 µg/m³, 0.6× usualYecheon, 4 September: 1,260.0 µg/m³, 124× usualYecheon, 5 September: 5.0 µg/m³, 0.5× usualYecheon, 6 September: 7.6 µg/m³, 0.7× usualYecheon, 7 September: 10.0 µg/m³, 1.0× usualYecheon, 8 September: 10.3 µg/m³, 1.0× usualYecheon, 9 September: 5.7 µg/m³, 0.6× usualYecheon, 10 September: 5.8 µg/m³, 0.6× usualYecheon, 11 September: 7.4 µg/m³, 0.7× usualYecheon, 12 September: 9.0 µg/m³, 0.9× usualYecheon, 13 September: 11.3 µg/m³, 1.1× usualYecheon, 14 September: no readingYecheon, 15 September: 14.5 µg/m³, 1.4× usualYecheon, 16 September: 843.0 µg/m³, 83× usualYecheon, 17 September: 5.9 µg/m³, 0.6× usualYecheon, 18 September: 8.4 µg/m³, 0.8× usualYecheon, 19 September: 8.1 µg/m³, 0.8× usualYecheon, 20 September: 7.9 µg/m³, 0.8× usualYecheon, 21 September: 12.0 µg/m³, 1.2× usualYecheon, 22 September: 9.8 µg/m³, 1.0× usualYecheon, 23 September: 8.3 µg/m³, 0.8× usualYecheon, 24 September: 15.3 µg/m³, 1.5× usualT’aebaekT’aebaek, 29 August: no readingT’aebaek, 30 August: 6.0 µg/m³, 1.0× usualT’aebaek, 31 August: no readingT’aebaek, 1 September: 2.2 µg/m³, 0.3× usualT’aebaek, 2 September: 419.0 µg/m³, 67× usualT’aebaek, 3 September: 3.7 µg/m³, 0.6× usualT’aebaek, 4 September: 3.3 µg/m³, 0.5× usualT’aebaek, 5 September: 2.3 µg/m³, 0.4× usualT’aebaek, 6 September: 4.1 µg/m³, 0.7× usualT’aebaek, 7 September: 1,260.0 µg/m³, 200× usualT’aebaek, 8 September: 4.4 µg/m³, 0.7× usualT’aebaek, 9 September: 3.1 µg/m³, 0.5× usualT’aebaek, 10 September: 2.7 µg/m³, 0.4× usualT’aebaek, 11 September: 3.0 µg/m³, 0.5× usualT’aebaek, 12 September: 3.5 µg/m³, 0.6× usualT’aebaek, 13 September: 8.5 µg/m³, 1.3× usualT’aebaek, 14 September: 11.1 µg/m³, 1.8× usualT’aebaek, 15 September: 9.0 µg/m³, 1.4× usualT’aebaek, 16 September: 7.3 µg/m³, 1.2× usualT’aebaek, 17 September: 3.1 µg/m³, 0.5× usualT’aebaek, 18 September: 3.5 µg/m³, 0.6× usualT’aebaek, 19 September: 5.0 µg/m³, 0.8× usualT’aebaek, 20 September: 6.3 µg/m³, 1.0× usualT’aebaek, 21 September: 6.9 µg/m³, 1.1× usualT’aebaek, 22 September: 5.4 µg/m³, 0.9× usualT’aebaek, 23 September: 4.6 µg/m³, 0.7× usualT’aebaek, 24 September: 10.0 µg/m³, 1.6× usualHaenamHaenam, 29 August: no readingHaenam, 30 August: no readingHaenam, 31 August: no readingHaenam, 1 September: no readingHaenam, 2 September: 1,250.0 µg/m³, 83× usualHaenam, 3 September: 12.1 µg/m³, 0.8× usualHaenam, 4 September: 10.3 µg/m³, 0.7× usualHaenam, 5 September: 8.6 µg/m³, 0.6× usualHaenam, 6 September: 10.6 µg/m³, 0.7× usualHaenam, 7 September: 13.4 µg/m³, 0.9× usualHaenam, 8 September: 15.0 µg/m³, 1.0× usualHaenam, 9 September: 13.0 µg/m³, 0.9× usualHaenam, 10 September: 10.0 µg/m³, 0.7× usualHaenam, 11 September: 843.0 µg/m³, 56× usualHaenam, 12 September: 14.9 µg/m³, 1.0× usualHaenam, 13 September: 14.5 µg/m³, 1.0× usualHaenam, 14 September: 17.6 µg/m³, 1.2× usualHaenam, 15 September: 13.6 µg/m³, 0.9× usualHaenam, 16 September: 16.2 µg/m³, 1.1× usualHaenam, 17 September: 10.9 µg/m³, 0.7× usualHaenam, 18 September: 12.1 µg/m³, 0.8× usualHaenam, 19 September: 11.5 µg/m³, 0.8× usualHaenam, 20 September: 12.3 µg/m³, 0.8× usualHaenam, 21 September: 16.1 µg/m³, 1.1× usualHaenam, 22 September: 13.4 µg/m³, 0.9× usualHaenam, 23 September: 13.6 µg/m³, 0.9× usualHaenam, 24 September: 14.2 µg/m³, 0.9× usualGimcheonGimcheon, 29 August: 4.5 µg/m³, 0.6× usualGimcheon, 30 August: 3.8 µg/m³, 0.5× usualGimcheon, 31 August: 1,250.0 µg/m³, 156× usualGimcheon, 1 September: 6.8 µg/m³, 0.9× usualGimcheon, 2 September: 839.0 µg/m³, 105× usualGimcheon, 3 September: 7.8 µg/m³, 1.0× usualGimcheon, 4 September: 5.2 µg/m³, 0.7× usualGimcheon, 5 September: 5.9 µg/m³, 0.7× usualGimcheon, 6 September: 6.5 µg/m³, 0.8× usualGimcheon, 7 September: 10.2 µg/m³, 1.3× usualGimcheon, 8 September: 9.0 µg/m³, 1.1× usualGimcheon, 9 September: 6.0 µg/m³, 0.8× usualGimcheon, 10 September: 213.3 µg/m³, 27× usualGimcheon, 11 September: 6.6 µg/m³, 0.8× usualGimcheon, 12 September: 9.1 µg/m³, 1.1× usualGimcheon, 13 September: 11.8 µg/m³, 1.5× usualGimcheon, 14 September: 20.2 µg/m³, 2.5× usualGimcheon, 15 September: 16.9 µg/m³, 2.1× usualGimcheon, 16 September: 12.2 µg/m³, 1.5× usualGimcheon, 17 September: 6.5 µg/m³, 0.8× usualGimcheon, 18 September: 7.4 µg/m³, 0.9× usualGimcheon, 19 September: 7.3 µg/m³, 0.9× usualGimcheon, 20 September: 7.5 µg/m³, 0.9× usualGimcheon, 21 September: 10.3 µg/m³, 1.3× usualGimcheon, 22 September: 9.7 µg/m³, 1.2× usualGimcheon, 23 September: 9.1 µg/m³, 1.1× usualGimcheon, 24 September: 13.3 µg/m³, 1.7× usualHwaseong-siHwaseong-si, 29 August: 218.1 µg/m³, 23× usualHwaseong-si, 30 August: 9.6 µg/m³, 1.0× usualHwaseong-si, 31 August: 420.0 µg/m³, 44× usualHwaseong-si, 1 September: no readingHwaseong-si, 2 September: 630.0 µg/m³, 66× usualHwaseong-si, 3 September: 12.0 µg/m³, 1.3× usualHwaseong-si, 4 September: 418.6 µg/m³, 44× usualHwaseong-si, 5 September: 835.0 µg/m³, 87× usualHwaseong-si, 6 September: 834.0 µg/m³, 87× usualHwaseong-si, 7 September: 4.9 µg/m³, 0.5× usualHwaseong-si, 8 September: 8.0 µg/m³, 0.8× usualHwaseong-si, 9 September: 209.9 µg/m³, 22× usualHwaseong-si, 10 September: 1,250.0 µg/m³, 130× usualHwaseong-si, 11 September: 633.1 µg/m³, 66× usualHwaseong-si, 12 September: 16.3 µg/m³, 1.7× usualHwaseong-si, 13 September: 20.4 µg/m³, 2.1× usualHwaseong-si, 14 September: 13.9 µg/m³, 1.4× usualHwaseong-si, 15 September: 216.0 µg/m³, 23× usualHwaseong-si, 16 September: 11.3 µg/m³, 1.2× usualHwaseong-si, 17 September: 5.4 µg/m³, 0.6× usualHwaseong-si, 18 September: 212.2 µg/m³, 22× usualHwaseong-si, 19 September: 5.6 µg/m³, 0.6× usualHwaseong-si, 20 September: 6.7 µg/m³, 0.7× usualHwaseong-si, 21 September: 17.4 µg/m³, 1.8× usualHwaseong-si, 22 September: 14.6 µg/m³, 1.5× usualHwaseong-si, 23 September: 18.2 µg/m³, 1.9× usualHwaseong-si, 24 September: 14.4 µg/m³, 1.5× usualJinan-gunJinan-gun, 29 August: no readingJinan-gun, 30 August: 1,250.0 µg/m³, 227× usualJinan-gun, 31 August: 419.0 µg/m³, 76× usualJinan-gun, 1 September: 3.7 µg/m³, 0.7× usualJinan-gun, 2 September: 423.0 µg/m³, 77× usualJinan-gun, 3 September: 9.3 µg/m³, 1.7× usualJinan-gun, 4 September: 6.8 µg/m³, 1.2× usualJinan-gun, 5 September: 4.8 µg/m³, 0.9× usualJinan-gun, 6 September: 5.8 µg/m³, 1.1× usualJinan-gun, 7 September: 10.3 µg/m³, 1.9× usualJinan-gun, 8 September: 7.5 µg/m³, 1.4× usualJinan-gun, 9 September: no readingJinan-gun, 10 September: no readingJinan-gun, 11 September: 838.0 µg/m³, 152× usualJinan-gun, 12 September: 7.1 µg/m³, 1.3× usualJinan-gun, 13 September: 12.2 µg/m³, 2.2× usualJinan-gun, 14 September: 14.8 µg/m³, 2.7× usualJinan-gun, 15 September: 17.4 µg/m³, 3.2× usualJinan-gun, 16 September: 845.0 µg/m³, 154× usualJinan-gun, 17 September: 5.8 µg/m³, 1.1× usualJinan-gun, 18 September: 4.9 µg/m³, 0.9× usualJinan-gun, 19 September: 5.7 µg/m³, 1.0× usualJinan-gun, 20 September: 4.8 µg/m³, 0.9× usualJinan-gun, 21 September: 8.2 µg/m³, 1.5× usualJinan-gun, 22 September: 6.7 µg/m³, 1.2× usualJinan-gun, 23 September: 9.8 µg/m³, 1.8× usualJinan-gun, 24 September: 11.3 µg/m³, 2.1× usualGwangjuGwangju, 29 August: 3.5 µg/m³, 0.5× usualGwangju, 30 August: 836.0 µg/m³, 110× usualGwangju, 31 August: 1,250.0 µg/m³, 164× usualGwangju, 1 September: 4.0 µg/m³, 0.5× usualGwangju, 2 September: 423.0 µg/m³, 56× usualGwangju, 3 September: 10.4 µg/m³, 1.4× usualGwangju, 4 September: 7.3 µg/m³, 1.0× usualGwangju, 5 September: 6.1 µg/m³, 0.8× usualGwangju, 6 September: 7.0 µg/m³, 0.9× usualGwangju, 7 September: 11.2 µg/m³, 1.5× usualGwangju, 8 September: 12.6 µg/m³, 1.7× usualGwangju, 9 September: 10.1 µg/m³, 1.3× usualGwangju, 10 September: 6.7 µg/m³, 0.9× usualGwangju, 11 September: 9.1 µg/m³, 1.2× usualGwangju, 12 September: 12.7 µg/m³, 1.7× usualGwangju, 13 September: 13.9 µg/m³, 1.8× usualGwangju, 14 September: 15.9 µg/m³, 2.1× usualGwangju, 15 September: 13.3 µg/m³, 1.8× usualGwangju, 16 September: 15.9 µg/m³, 2.1× usualGwangju, 17 September: 8.3 µg/m³, 1.1× usualGwangju, 18 September: 7.8 µg/m³, 1.0× usualGwangju, 19 September: 9.0 µg/m³, 1.2× usualGwangju, 20 September: 9.8 µg/m³, 1.3× usualGwangju, 21 September: 15.2 µg/m³, 2.0× usualGwangju, 22 September: 14.8 µg/m³, 1.9× usualGwangju, 23 September: 14.6 µg/m³, 1.9× usualGwangju, 24 September: 14.0 µg/m³, 1.8× usualKoch'angKoch'ang, 29 August: 1,250.0 µg/m³, 240× usualKoch'ang, 30 August: no readingKoch'ang, 31 August: no readingKoch'ang, 1 September: 2.7 µg/m³, 0.5× usualKoch'ang, 2 September: 422.0 µg/m³, 81× usualKoch'ang, 3 September: 12.5 µg/m³, 2.4× usualKoch'ang, 4 September: 7.5 µg/m³, 1.4× usualKoch'ang, 5 September: 4.6 µg/m³, 0.9× usualKoch'ang, 6 September: 5.6 µg/m³, 1.1× usualKoch'ang, 7 September: no readingKoch'ang, 8 September: no readingKoch'ang, 9 September: 10.9 µg/m³, 2.1× usualKoch'ang, 10 September: 5.3 µg/m³, 1.0× usualKoch'ang, 11 September: 842.0 µg/m³, 162× usualKoch'ang, 12 September: 12.4 µg/m³, 2.4× usualKoch'ang, 13 September: 11.7 µg/m³, 2.3× usualKoch'ang, 14 September: 16.5 µg/m³, 3.2× usualKoch'ang, 15 September: 11.8 µg/m³, 2.3× usualKoch'ang, 16 September: 848.0 µg/m³, 163× usualKoch'ang, 17 September: no readingKoch'ang, 18 September: 8.0 µg/m³, 1.5× usualKoch'ang, 19 September: 10.5 µg/m³, 2.0× usualKoch'ang, 20 September: 10.2 µg/m³, 2.0× usualKoch'ang, 21 September: no readingKoch'ang, 22 September: 16.3 µg/m³, 3.1× usualKoch'ang, 23 September: 14.1 µg/m³, 2.7× usualKoch'ang, 24 September: 12.4 µg/m³, 2.4× usualGyeongjuGyeongju, 29 August: 1,250.0 µg/m³, 187× usualGyeongju, 30 August: 626.0 µg/m³, 93× usualGyeongju, 31 August: 835.0 µg/m³, 125× usualGyeongju, 1 September: 3.1 µg/m³, 0.5× usualGyeongju, 2 September: 422.0 µg/m³, 63× usualGyeongju, 3 September: 3.9 µg/m³, 0.6× usualGyeongju, 4 September: 3.0 µg/m³, 0.4× usualGyeongju, 5 September: 419.0 µg/m³, 63× usualGyeongju, 6 September: 215.5 µg/m³, 32× usualGyeongju, 7 September: 8.0 µg/m³, 1.2× usualGyeongju, 8 September: 5.4 µg/m³, 0.8× usualGyeongju, 9 September: 5.0 µg/m³, 0.7× usualGyeongju, 10 September: 2.6 µg/m³, 0.4× usualGyeongju, 11 September: 3.9 µg/m³, 0.6× usualGyeongju, 12 September: 3.6 µg/m³, 0.5× usualGyeongju, 13 September: 5.3 µg/m³, 0.8× usualGyeongju, 14 September: 10.9 µg/m³, 1.6× usualGyeongju, 15 September: 8.7 µg/m³, 1.3× usualGyeongju, 16 September: 6.0 µg/m³, 0.9× usualGyeongju, 17 September: 3.1 µg/m³, 0.5× usualGyeongju, 18 September: 4.9 µg/m³, 0.7× usualGyeongju, 19 September: 6.0 µg/m³, 0.9× usualGyeongju, 20 September: 7.1 µg/m³, 1.1× usualGyeongju, 21 September: 8.5 µg/m³, 1.3× usualGyeongju, 22 September: 6.9 µg/m³, 1.0× usualGyeongju, 23 September: 3.8 µg/m³, 0.6× usualGyeongju, 24 September: 10.3 µg/m³, 1.5× usualKoesanKoesan, 29 August: 9.9 µg/m³, 1.1× usualKoesan, 30 August: 13.1 µg/m³, 1.4× usualKoesan, 31 August: 6.2 µg/m³, 0.7× usualKoesan, 1 September: 7.2 µg/m³, 0.8× usualKoesan, 2 September: 634.5 µg/m³, 68× usualKoesan, 3 September: 1,052.0 µg/m³, 112× usualKoesan, 4 September: 8.4 µg/m³, 0.9× usualKoesan, 5 September: 8.1 µg/m³, 0.9× usualKoesan, 6 September: 7.3 µg/m³, 0.8× usualKoesan, 7 September: 10.5 µg/m³, 1.1× usualKoesan, 8 September: 10.3 µg/m³, 1.1× usualKoesan, 9 September: 7.5 µg/m³, 0.8× usualKoesan, 10 September: 838.0 µg/m³, 89× usualKoesan, 11 September: 7.5 µg/m³, 0.8× usualKoesan, 12 September: 9.7 µg/m³, 1.0× usualKoesan, 13 September: 15.6 µg/m³, 1.7× usualKoesan, 14 September: 23.2 µg/m³, 2.5× usualKoesan, 15 September: 22.0 µg/m³, 2.3× usualKoesan, 16 September: 13.4 µg/m³, 1.4× usualKoesan, 17 September: 8.0 µg/m³, 0.9× usualKoesan, 18 September: 9.0 µg/m³, 1.0× usualKoesan, 19 September: 10.3 µg/m³, 1.1× usualKoesan, 20 September: 10.7 µg/m³, 1.1× usualKoesan, 21 September: 13.0 µg/m³, 1.4× usualKoesan, 22 September: 12.8 µg/m³, 1.4× usualKoesan, 23 September: 11.3 µg/m³, 1.2× usualKoesan, 24 September: 18.4 µg/m³, 2.0× usualYeojuYeoju, 29 August: 14.6 µg/m³, 1.4× usualYeoju, 30 August: 16.0 µg/m³, 1.5× usualYeoju, 31 August: 7.0 µg/m³, 0.7× usualYeoju, 1 September: 5.6 µg/m³, 0.5× usualYeoju, 2 September: 843.5 µg/m³, 79× usualYeoju, 3 September: 12.3 µg/m³, 1.1× usualYeoju, 4 September: 8.6 µg/m³, 0.8× usualYeoju, 5 September: 215.3 µg/m³, 20× usualYeoju, 6 September: 6.9 µg/m³, 0.6× usualYeoju, 7 September: 8.7 µg/m³, 0.8× usualYeoju, 8 September: 9.3 µg/m³, 0.9× usualYeoju, 9 September: 1,048.5 µg/m³, 98× usualYeoju, 10 September: 6.9 µg/m³, 0.6× usualYeoju, 11 September: 9.3 µg/m³, 0.9× usualYeoju, 12 September: 12.3 µg/m³, 1.1× usualYeoju, 13 September: 17.8 µg/m³, 1.7× usualYeoju, 14 September: 26.1 µg/m³, 2.4× usualYeoju, 15 September: 17.7 µg/m³, 1.7× usualYeoju, 16 September: 429.1 µg/m³, 40× usualYeoju, 17 September: 9.7 µg/m³, 0.9× usualYeoju, 18 September: 217.3 µg/m³, 20× usualYeoju, 19 September: 218.1 µg/m³, 20× usualYeoju, 20 September: 12.4 µg/m³, 1.2× usualYeoju, 21 September: 13.2 µg/m³, 1.2× usualYeoju, 22 September: 14.3 µg/m³, 1.3× usualYeoju, 23 September: 17.5 µg/m³, 1.6× usualYeoju, 24 September: 26.1 µg/m³, 2.4× usualJungpyongJungpyong, 29 August: 217.2 µg/m³, 23× usualJungpyong, 30 August: 12.5 µg/m³, 1.3× usualJungpyong, 31 August: 4.0 µg/m³, 0.4× usualJungpyong, 1 September: 4.1 µg/m³, 0.4× usualJungpyong, 2 September: 426.5 µg/m³, 46× usualJungpyong, 3 September: 9.7 µg/m³, 1.0× usualJungpyong, 4 September: 5.3 µg/m³, 0.6× usualJungpyong, 5 September: 5.1 µg/m³, 0.5× usualJungpyong, 6 September: 5.6 µg/m³, 0.6× usualJungpyong, 7 September: 7.4 µg/m³, 0.8× usualJungpyong, 8 September: 1,045.5 µg/m³, 112× usualJungpyong, 9 September: 420.6 µg/m³, 45× usualJungpyong, 10 September: no readingJungpyong, 11 September: 6.2 µg/m³, 0.7× usualJungpyong, 12 September: 9.0 µg/m³, 1.0× usualJungpyong, 13 September: 14.9 µg/m³, 1.6× usualJungpyong, 14 September: 22.4 µg/m³, 2.4× usualJungpyong, 15 September: 638.5 µg/m³, 69× usualJungpyong, 16 September: 9.9 µg/m³, 1.1× usualJungpyong, 17 September: 4.8 µg/m³, 0.5× usualJungpyong, 18 September: 6.1 µg/m³, 0.7× usualJungpyong, 19 September: 6.9 µg/m³, 0.7× usualJungpyong, 20 September: 8.1 µg/m³, 0.9× usualJungpyong, 21 September: 9.7 µg/m³, 1.0× usualJungpyong, 22 September: 8.6 µg/m³, 0.9× usualJungpyong, 23 September: 8.6 µg/m³, 0.9× usualJungpyong, 24 September: 17.4 µg/m³, 1.9× usualBoryeongBoryeong, 29 August: 5.3 µg/m³, 0.6× usualBoryeong, 30 August: 9.8 µg/m³, 1.1× usualBoryeong, 31 August: 1,043.0 µg/m³, 112× usualBoryeong, 1 September: 5.3 µg/m³, 0.6× usualBoryeong, 2 September: 427.5 µg/m³, 46× usualBoryeong, 3 September: 15.1 µg/m³, 1.6× usualBoryeong, 4 September: 837.5 µg/m³, 90× usualBoryeong, 5 September: 5.7 µg/m³, 0.6× usualBoryeong, 6 September: 5.2 µg/m³, 0.6× usualBoryeong, 7 September: 9.5 µg/m³, 1.0× usualBoryeong, 8 September: 13.3 µg/m³, 1.4× usualBoryeong, 9 September: 7.3 µg/m³, 0.8× usualBoryeong, 10 September: 6.1 µg/m³, 0.7× usualBoryeong, 11 September: 426.6 µg/m³, 46× usualBoryeong, 12 September: 17.9 µg/m³, 1.9× usualBoryeong, 13 September: 20.5 µg/m³, 2.2× usualBoryeong, 14 September: 847.5 µg/m³, 91× usualBoryeong, 15 September: 9.9 µg/m³, 1.1× usualBoryeong, 16 September: 14.4 µg/m³, 1.5× usualBoryeong, 17 September: 5.3 µg/m³, 0.6× usualBoryeong, 18 September: 8.0 µg/m³, 0.9× usualBoryeong, 19 September: 7.9 µg/m³, 0.8× usualBoryeong, 20 September: 10.0 µg/m³, 1.1× usualBoryeong, 21 September: 17.0 µg/m³, 1.8× usualBoryeong, 22 September: 16.2 µg/m³, 1.7× usualBoryeong, 23 September: 16.4 µg/m³, 1.8× usualBoryeong, 24 September: 14.3 µg/m³, 1.5× usualTongyeongTongyeong, 29 August: 5.9 µg/m³, 0.6× usualTongyeong, 30 August: 5.0 µg/m³, 0.5× usualTongyeong, 31 August: 422.0 µg/m³, 40× usualTongyeong, 1 September: 7.3 µg/m³, 0.7× usualTongyeong, 2 September: 430.0 µg/m³, 41× usualTongyeong, 3 September: 15.3 µg/m³, 1.5× usualTongyeong, 4 September: 9.1 µg/m³, 0.9× usualTongyeong, 5 September: 8.8 µg/m³, 0.8× usualTongyeong, 6 September: 13.3 µg/m³, 1.3× usualTongyeong, 7 September: 15.7 µg/m³, 1.5× usualTongyeong, 8 September: 429.0 µg/m³, 41× usualTongyeong, 9 September: 10.8 µg/m³, 1.0× usualTongyeong, 10 September: 10.5 µg/m³, 1.0× usualTongyeong, 11 September: 9.9 µg/m³, 0.9× usualTongyeong, 12 September: 11.9 µg/m³, 1.1× usualTongyeong, 13 September: 11.0 µg/m³, 1.0× usualTongyeong, 14 September: 17.0 µg/m³, 1.6× usualTongyeong, 15 September: 849.0 µg/m³, 81× usualTongyeong, 16 September: 11.2 µg/m³, 1.1× usualTongyeong, 17 September: 8.2 µg/m³, 0.8× usualTongyeong, 18 September: 10.7 µg/m³, 1.0× usualTongyeong, 19 September: 11.1 µg/m³, 1.1× usualTongyeong, 20 September: 11.7 µg/m³, 1.1× usualTongyeong, 21 September: 13.2 µg/m³, 1.3× usualTongyeong, 22 September: 12.2 µg/m³, 1.2× usualTongyeong, 23 September: 8.2 µg/m³, 0.8× usualTongyeong, 24 September: 13.4 µg/m³, 1.3× usualWanjuWanju, 29 August: 7.5 µg/m³, 0.7× usualWanju, 30 August: 214.5 µg/m³, 21× usualWanju, 31 August: 422.4 µg/m³, 41× usualWanju, 1 September: 8.4 µg/m³, 0.8× usualWanju, 2 September: 428.5 µg/m³, 42× usualWanju, 3 September: 16.5 µg/m³, 1.6× usualWanju, 4 September: 10.6 µg/m³, 1.0× usualWanju, 5 September: 9.8 µg/m³, 1.0× usualWanju, 6 September: 10.9 µg/m³, 1.1× usualWanju, 7 September: 14.4 µg/m³, 1.4× usualWanju, 8 September: 13.9 µg/m³, 1.3× usualWanju, 9 September: 8.8 µg/m³, 0.9× usualWanju, 10 September: 8.2 µg/m³, 0.8× usualWanju, 11 September: no readingWanju, 12 September: 15.9 µg/m³, 1.5× usualWanju, 13 September: 18.4 µg/m³, 1.8× usualWanju, 14 September: 23.8 µg/m³, 2.3× usualWanju, 15 September: 19.6 µg/m³, 1.9× usualWanju, 16 September: 849.0 µg/m³, 82× usualWanju, 17 September: 9.0 µg/m³, 0.9× usualWanju, 18 September: 10.5 µg/m³, 1.0× usualWanju, 19 September: 12.1 µg/m³, 1.2× usualWanju, 20 September: 12.7 µg/m³, 1.2× usualWanju, 21 September: 21.2 µg/m³, 2.1× usualWanju, 22 September: 17.6 µg/m³, 1.7× usualWanju, 23 September: 20.3 µg/m³, 2.0× usualWanju, 24 September: 20.9 µg/m³, 2.0× usualKuryeKurye, 29 August: 1.9 µg/m³, 0.3× usualKurye, 30 August: 1.7 µg/m³, 0.3× usualKurye, 31 August: 3.0 µg/m³, 0.5× usualKurye, 1 September: no readingKurye, 2 September: 421.0 µg/m³, 71× usualKurye, 3 September: 8.5 µg/m³, 1.4× usualKurye, 4 September: 5.9 µg/m³, 1.0× usualKurye, 5 September: 5.0 µg/m³, 0.8× usualKurye, 6 September: 7.7 µg/m³, 1.3× usualKurye, 7 September: 8.9 µg/m³, 1.5× usualKurye, 8 September: 8.4 µg/m³, 1.4× usualKurye, 9 September: 6.9 µg/m³, 1.2× usualKurye, 10 September: 5.1 µg/m³, 0.9× usualKurye, 11 September: 7.6 µg/m³, 1.3× usualKurye, 12 September: 9.4 µg/m³, 1.6× usualKurye, 13 September: 10.8 µg/m³, 1.8× usualKurye, 14 September: 12.7 µg/m³, 2.2× usualKurye, 15 September: 849.0 µg/m³, 144× usualKurye, 16 September: 13.1 µg/m³, 2.2× usualKurye, 17 September: 7.8 µg/m³, 1.3× usualKurye, 18 September: 6.8 µg/m³, 1.2× usualKurye, 19 September: 6.5 µg/m³, 1.1× usualKurye, 20 September: 7.0 µg/m³, 1.2× usualKurye, 21 September: 425.0 µg/m³, 72× usualKurye, 22 September: 9.3 µg/m³, 1.6× usualKurye, 23 September: 10.3 µg/m³, 1.7× usualKurye, 24 September: 12.4 µg/m³, 2.1× usualYangsanYangsan, 29 August: 6.3 µg/m³, 0.6× usualYangsan, 30 August: 4.0 µg/m³, 0.4× usualYangsan, 31 August: 213.8 µg/m³, 22× usualYangsan, 1 September: 7.9 µg/m³, 0.8× usualYangsan, 2 September: 432.0 µg/m³, 44× usualYangsan, 3 September: 12.2 µg/m³, 1.2× usualYangsan, 4 September: 4.6 µg/m³, 0.5× usualYangsan, 5 September: 5.4 µg/m³, 0.5× usualYangsan, 6 September: 11.2 µg/m³, 1.1× usualYangsan, 7 September: 845.0 µg/m³, 85× usualYangsan, 8 September: 6.9 µg/m³, 0.7× usualYangsan, 9 September: 6.6 µg/m³, 0.7× usualYangsan, 10 September: 4.3 µg/m³, 0.4× usualYangsan, 11 September: 6.8 µg/m³, 0.7× usualYangsan, 12 September: 7.3 µg/m³, 0.7× usualYangsan, 13 September: 7.3 µg/m³, 0.7× usualYangsan, 14 September: 847.0 µg/m³, 86× usualYangsan, 15 September: 14.9 µg/m³, 1.5× usualYangsan, 16 September: 8.6 µg/m³, 0.9× usualYangsan, 17 September: 5.5 µg/m³, 0.6× usualYangsan, 18 September: 7.0 µg/m³, 0.7× usualYangsan, 19 September: 9.3 µg/m³, 0.9× usualYangsan, 20 September: 11.3 µg/m³, 1.1× usualYangsan, 21 September: 844.0 µg/m³, 85× usualYangsan, 22 September: 8.9 µg/m³, 0.9× usualYangsan, 23 September: 5.4 µg/m³, 0.5× usualYangsan, 24 September: 12.7 µg/m³, 1.3× usualGunsanGunsan, 29 August: 5.6 µg/m³, 0.7× usualGunsan, 30 August: 6.8 µg/m³, 0.8× usualGunsan, 31 August: 4.7 µg/m³, 0.5× usualGunsan, 1 September: 5.0 µg/m³, 0.6× usualGunsan, 2 September: 426.0 µg/m³, 50× usualGunsan, 3 September: 638.0 µg/m³, 74× usualGunsan, 4 September: 7.0 µg/m³, 0.8× usualGunsan, 5 September: 5.8 µg/m³, 0.7× usualGunsan, 6 September: 7.0 µg/m³, 0.8× usualGunsan, 7 September: 11.8 µg/m³, 1.4× usualGunsan, 8 September: 16.6 µg/m³, 1.9× usualGunsan, 9 September: 8.8 µg/m³, 1.0× usualGunsan, 10 September: 6.5 µg/m³, 0.8× usualGunsan, 11 September: 841.5 µg/m³, 98× usualGunsan, 12 September: 19.0 µg/m³, 2.2× usualGunsan, 13 September: 21.6 µg/m³, 2.5× usualGunsan, 14 September: 17.7 µg/m³, 2.1× usualGunsan, 15 September: 10.8 µg/m³, 1.3× usualGunsan, 16 September: 847.0 µg/m³, 98× usualGunsan, 17 September: 7.5 µg/m³, 0.9× usualGunsan, 18 September: 8.3 µg/m³, 1.0× usualGunsan, 19 September: 9.9 µg/m³, 1.2× usualGunsan, 20 September: 10.3 µg/m³, 1.2× usualGunsan, 21 September: 22.8 µg/m³, 2.7× usualGunsan, 22 September: 19.1 µg/m³, 2.2× usualGunsan, 23 September: 20.2 µg/m³, 2.3× usualGunsan, 24 September: 20.5 µg/m³, 2.4× usualNamsaNamsa, 29 August: 2.1 µg/m³, 0.3× usualNamsa, 30 August: no readingNamsa, 31 August: no readingNamsa, 1 September: 5.5 µg/m³, 0.7× usualNamsa, 2 September: 425.0 µg/m³, 53× usualNamsa, 3 September: 10.8 µg/m³, 1.4× usualNamsa, 4 September: 5.5 µg/m³, 0.7× usualNamsa, 5 September: 5.1 µg/m³, 0.6× usualNamsa, 6 September: 6.6 µg/m³, 0.8× usualNamsa, 7 September: 10.8 µg/m³, 1.4× usualNamsa, 8 September: 9.6 µg/m³, 1.2× usualNamsa, 9 September: 422.0 µg/m³, 53× usualNamsa, 10 September: 5.5 µg/m³, 0.7× usualNamsa, 11 September: 841.0 µg/m³, 105× usualNamsa, 12 September: 11.7 µg/m³, 1.5× usualNamsa, 13 September: 15.3 µg/m³, 1.9× usualNamsa, 14 September: 20.8 µg/m³, 2.6× usualNamsa, 15 September: 17.8 µg/m³, 2.2× usualNamsa, 16 September: 847.0 µg/m³, 106× usualNamsa, 17 September: 424.0 µg/m³, 53× usualNamsa, 18 September: 8.5 µg/m³, 1.1× usualNamsa, 19 September: 8.9 µg/m³, 1.1× usualNamsa, 20 September: 9.6 µg/m³, 1.2× usualNamsa, 21 September: 12.8 µg/m³, 1.6× usualNamsa, 22 September: 12.1 µg/m³, 1.5× usualNamsa, 23 September: 14.9 µg/m³, 1.9× usualNamsa, 24 September: 15.7 µg/m³, 2.0× usualWaegwanWaegwan, 29 August: 6.8 µg/m³, 0.7× usualWaegwan, 30 August: 5.3 µg/m³, 0.6× usualWaegwan, 31 August: 8.5 µg/m³, 0.9× usualWaegwan, 1 September: 9.1 µg/m³, 1.0× usualWaegwan, 2 September: 425.0 µg/m³, 47× usualWaegwan, 3 September: 10.2 µg/m³, 1.1× usualWaegwan, 4 September: 7.8 µg/m³, 0.9× usualWaegwan, 5 September: 7.0 µg/m³, 0.8× usualWaegwan, 6 September: 9.3 µg/m³, 1.0× usualWaegwan, 7 September: 11.7 µg/m³, 1.3× usualWaegwan, 8 September: 10.4 µg/m³, 1.1× usualWaegwan, 9 September: 8.1 µg/m³, 0.9× usualWaegwan, 10 September: 8.1 µg/m³, 0.9× usualWaegwan, 11 September: 9.6 µg/m³, 1.1× usualWaegwan, 12 September: 10.5 µg/m³, 1.2× usualWaegwan, 13 September: 13.2 µg/m³, 1.5× usualWaegwan, 14 September: 21.6 µg/m³, 2.4× usualWaegwan, 15 September: 16.6 µg/m³, 1.8× usualWaegwan, 16 September: 847.0 µg/m³, 93× usualWaegwan, 17 September: 7.9 µg/m³, 0.9× usualWaegwan, 18 September: 9.5 µg/m³, 1.0× usualWaegwan, 19 September: 8.2 µg/m³, 0.9× usualWaegwan, 20 September: 9.8 µg/m³, 1.1× usualWaegwan, 21 September: 13.2 µg/m³, 1.5× usualWaegwan, 22 September: 11.7 µg/m³, 1.3× usualWaegwan, 23 September: 9.1 µg/m³, 1.0× usualWaegwan, 24 September: 16.8 µg/m³, 1.8× usualChangsuChangsu, 29 August: 3.9 µg/m³, 0.6× usualChangsu, 30 August: 420.4 µg/m³, 61× usualChangsu, 31 August: 5.9 µg/m³, 0.9× usualChangsu, 1 September: 6.7 µg/m³, 1.0× usualChangsu, 2 September: 423.0 µg/m³, 61× usualChangsu, 3 September: 10.2 µg/m³, 1.5× usualChangsu, 4 September: 6.8 µg/m³, 1.0× usualChangsu, 5 September: 6.0 µg/m³, 0.9× usualChangsu, 6 September: 8.0 µg/m³, 1.2× usualChangsu, 7 September: 11.4 µg/m³, 1.7× usualChangsu, 8 September: 8.6 µg/m³, 1.2× usualChangsu, 9 September: 215.5 µg/m³, 31× usualChangsu, 10 September: 6.4 µg/m³, 0.9× usualChangsu, 11 September: 840.0 µg/m³, 122× usualChangsu, 12 September: 8.6 µg/m³, 1.2× usualChangsu, 13 September: 13.4 µg/m³, 1.9× usualChangsu, 14 September: 15.6 µg/m³, 2.3× usualChangsu, 15 September: 645.5 µg/m³, 94× usualChangsu, 16 September: 847.0 µg/m³, 123× usualChangsu, 17 September: 8.3 µg/m³, 1.2× usualChangsu, 18 September: 9.1 µg/m³, 1.3× usualChangsu, 19 September: 216.6 µg/m³, 31× usualChangsu, 20 September: 8.0 µg/m³, 1.2× usualChangsu, 21 September: 218.6 µg/m³, 32× usualChangsu, 22 September: 220.0 µg/m³, 32× usualChangsu, 23 September: 12.0 µg/m³, 1.7× usualChangsu, 24 September: 13.6 µg/m³, 2.0× usualBuyeoBuyeo, 29 August: 3.5 µg/m³, 0.4× usualBuyeo, 30 August: 3.6 µg/m³, 0.4× usualBuyeo, 31 August: 1.7 µg/m³, 0.2× usualBuyeo, 1 September: 3.2 µg/m³, 0.3× usualBuyeo, 2 September: 423.0 µg/m³, 45× usualBuyeo, 3 September: 10.4 µg/m³, 1.1× usualBuyeo, 4 September: 420.0 µg/m³, 45× usualBuyeo, 5 September: 3.7 µg/m³, 0.4× usualBuyeo, 6 September: 4.2 µg/m³, 0.4× usualBuyeo, 7 September: 7.3 µg/m³, 0.8× usualBuyeo, 8 September: 8.5 µg/m³, 0.9× usualBuyeo, 9 September: 5.3 µg/m³, 0.6× usualBuyeo, 10 September: 837.0 µg/m³, 89× usualBuyeo, 11 September: 7.5 µg/m³, 0.8× usualBuyeo, 12 September: 12.5 µg/m³, 1.3× usualBuyeo, 13 September: 16.4 µg/m³, 1.7× usualBuyeo, 14 September: 847.0 µg/m³, 90× usualBuyeo, 15 September: 9.9 µg/m³, 1.1× usualBuyeo, 16 September: 427.0 µg/m³, 45× usualBuyeo, 17 September: 5.1 µg/m³, 0.5× usualBuyeo, 18 September: 5.8 µg/m³, 0.6× usualBuyeo, 19 September: 6.9 µg/m³, 0.7× usualBuyeo, 20 September: 7.7 µg/m³, 0.8× usualBuyeo, 21 September: 12.6 µg/m³, 1.3× usualBuyeo, 22 September: 12.5 µg/m³, 1.3× usualBuyeo, 23 September: 13.3 µg/m³, 1.4× usualBuyeo, 24 September: 14.0 µg/m³, 1.5× usualIksanIksan, 29 August: 4.2 µg/m³, 0.5× usualIksan, 30 August: 4.3 µg/m³, 0.6× usualIksan, 31 August: 3.2 µg/m³, 0.4× usualIksan, 1 September: 5.8 µg/m³, 0.7× usualIksan, 2 September: 425.5 µg/m³, 55× usualIksan, 3 September: 15.7 µg/m³, 2.0× usualIksan, 4 September: 5.0 µg/m³, 0.6× usualIksan, 5 September: 4.1 µg/m³, 0.5× usualIksan, 6 September: 5.8 µg/m³, 0.7× usualIksan, 7 September: 10.1 µg/m³, 1.3× usualIksan, 8 September: 13.3 µg/m³, 1.7× usualIksan, 9 September: 6.8 µg/m³, 0.9× usualIksan, 10 September: 7.3 µg/m³, 0.9× usualIksan, 11 September: 842.0 µg/m³, 108× usualIksan, 12 September: 17.8 µg/m³, 2.3× usualIksan, 13 September: 19.7 µg/m³, 2.5× usualIksan, 14 September: 22.8 µg/m³, 2.9× usualIksan, 15 September: 14.1 µg/m³, 1.8× usualIksan, 16 September: 846.5 µg/m³, 109× usualIksan, 17 September: 5.4 µg/m³, 0.7× usualIksan, 18 September: 7.7 µg/m³, 1.0× usualIksan, 19 September: 9.0 µg/m³, 1.2× usualIksan, 20 September: 9.9 µg/m³, 1.3× usualIksan, 21 September: 21.3 µg/m³, 2.7× usualIksan, 22 September: 16.6 µg/m³, 2.1× usualIksan, 23 September: 18.3 µg/m³, 2.3× usualIksan, 24 September: 19.5 µg/m³, 2.5× usualYŏnmuYŏnmu, 29 August: 4.2 µg/m³, 0.5× usualYŏnmu, 30 August: 4.0 µg/m³, 0.5× usualYŏnmu, 31 August: 3.2 µg/m³, 0.4× usualYŏnmu, 1 September: 4.1 µg/m³, 0.5× usualYŏnmu, 2 September: 425.0 µg/m³, 50× usualYŏnmu, 3 September: 220.0 µg/m³, 26× usualYŏnmu, 4 September: 6.1 µg/m³, 0.7× usualYŏnmu, 5 September: 6.0 µg/m³, 0.7× usualYŏnmu, 6 September: 7.0 µg/m³, 0.8× usualYŏnmu, 7 September: 12.8 µg/m³, 1.5× usualYŏnmu, 8 September: 13.2 µg/m³, 1.6× usualYŏnmu, 9 September: 422.0 µg/m³, 50× usualYŏnmu, 10 September: 6.3 µg/m³, 0.7× usualYŏnmu, 11 September: 839.0 µg/m³, 99× usualYŏnmu, 12 September: 14.0 µg/m³, 1.6× usualYŏnmu, 13 September: 18.9 µg/m³, 2.2× usualYŏnmu, 14 September: 20.0 µg/m³, 2.4× usualYŏnmu, 15 September: 14.6 µg/m³, 1.7× usualYŏnmu, 16 September: 846.0 µg/m³, 100× usualYŏnmu, 17 September: 7.7 µg/m³, 0.9× usualYŏnmu, 18 September: 216.1 µg/m³, 25× usualYŏnmu, 19 September: 8.4 µg/m³, 1.0× usualYŏnmu, 20 September: 9.0 µg/m³, 1.1× usualYŏnmu, 21 September: 13.5 µg/m³, 1.6× usualYŏnmu, 22 September: 14.5 µg/m³, 1.7× usualYŏnmu, 23 September: 15.6 µg/m³, 1.8× usualYŏnmu, 24 September: 17.8 µg/m³, 2.1× usualKunwiKunwi, 29 August: 6.0 µg/m³, 1.2× usualKunwi, 30 August: 6.1 µg/m³, 1.2× usualKunwi, 31 August: 6.3 µg/m³, 1.3× usualKunwi, 1 September: 6.3 µg/m³, 1.3× usualKunwi, 2 September: no readingKunwi, 3 September: 6.8 µg/m³, 1.4× usualKunwi, 4 September: 5.4 µg/m³, 1.1× usualKunwi, 5 September: 4.8 µg/m³, 1.0× usualKunwi, 6 September: 6.8 µg/m³, 1.4× usualKunwi, 7 September: 10.0 µg/m³, 2.0× usualKunwi, 8 September: 6.9 µg/m³, 1.4× usualKunwi, 9 September: 1,250.0 µg/m³, 250× usualKunwi, 10 September: 4.7 µg/m³, 0.9× usualKunwi, 11 September: 6.0 µg/m³, 1.2× usualKunwi, 12 September: 7.8 µg/m³, 1.6× usualKunwi, 13 September: 8.7 µg/m³, 1.7× usualKunwi, 14 September: 15.9 µg/m³, 3.2× usualKunwi, 15 September: 844.0 µg/m³, 169× usualKunwi, 16 September: 7.0 µg/m³, 1.4× usualKunwi, 17 September: 5.4 µg/m³, 1.1× usualKunwi, 18 September: 8.1 µg/m³, 1.6× usualKunwi, 19 September: 7.2 µg/m³, 1.4× usualKunwi, 20 September: 6.9 µg/m³, 1.4× usualKunwi, 21 September: 1,260.0 µg/m³, 252× usualKunwi, 22 September: 7.5 µg/m³, 1.5× usualKunwi, 23 September: 6.8 µg/m³, 1.4× usualKunwi, 24 September: 12.8 µg/m³, 2.6× usualKinzanKinzan, 29 August: no readingKinzan, 30 August: no readingKinzan, 31 August: no readingKinzan, 1 September: no readingKinzan, 2 September: no readingKinzan, 3 September: 4.5 µg/m³, 0.7× usualKinzan, 4 September: no readingKinzan, 5 September: no readingKinzan, 6 September: no readingKinzan, 7 September: 3.9 µg/m³, 0.6× usualKinzan, 8 September: no readingKinzan, 9 September: no readingKinzan, 10 September: no readingKinzan, 11 September: no readingKinzan, 12 September: no readingKinzan, 13 September: no readingKinzan, 14 September: no readingKinzan, 15 September: 438.0 µg/m³, 70× usualKinzan, 16 September: 11.3 µg/m³, 1.8× usualKinzan, 17 September: 1,250.0 µg/m³, 198× usualKinzan, 18 September: 4.0 µg/m³, 0.6× usualKinzan, 19 September: 5.1 µg/m³, 0.8× usualKinzan, 20 September: 6.8 µg/m³, 1.1× usualKinzan, 21 September: 8.3 µg/m³, 1.3× usualKinzan, 22 September: 6.8 µg/m³, 1.1× usualKinzan, 23 September: 8.0 µg/m³, 1.3× usualKinzan, 24 September: 15.8 µg/m³, 2.5× usual29 Aug1 Sep471013161922
The 60 cities with the highest readings of 132, 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
KunwiGyeongsangbuk-do, South Korea3 1,260.021 September4.9252×
YangjuGyeonggi-do, South Korea4 1,250.06 September5.2240×
Koch'angJeollabuk-do, South Korea3 1,250.029 August5.2240×
KosongGangwon-do, South Korea8 1,250.03 September5.4231×
Jinan-gunJeollabuk-do, South Korea3 1,250.030 August5.5227×
T’aebaekGangwon-do, South Korea2 1,260.07 September6.3200×
KinzanChungcheongnam-do, South Korea2 1,250.017 September6.3198×
GyeongjuGyeongsangbuk-do, South Korea3 1,250.029 August6.7187×
GaigeturiJeju-do, South Korea7 1,260.02 September7.3173×
GapyeongGyeonggi-do, South Korea3 834.01 September4.3167×
AnseongGyeonggi-do, South Korea8 1,250.05 September7.5167×
GongjuChungcheongnam-do, South Korea3 1,250.01 September7.6164×
GwangjuGwangju, South Korea1 1,250.031 August7.6164×
HadongGyeongsangnam-do, South Korea5 1,260.021 September7.8162×
SeogwipoJeju-do, South Korea6 1,260.02 September7.9159×
YangguGangwon-do, South Korea3 841.015 September5.3159×
Cheongju-siNorth Chungcheong, South Korea3 1,260.021 September8.0158×
Jeju CityJeju-do, South Korea2 1,260.02 September8.0158×
YeongamJeollanam-do, South Korea1 1,260.02 September8.0158×
GimcheonGyeongsangbuk-do, South Korea2 1,250.031 August8.0156×
JumunjinGangwon-do, South Korea3 838.018 September5.6150×
MasanGwangju, South Korea7 1,250.031 August8.4149×
OkcheonNorth Chungcheong, South Korea3 1,260.09 September8.5148×
Cheongsong gunGyeongsangbuk-do, South Korea2 838.08 September5.7147×
YeongdongNorth Chungcheong, South Korea2 1,260.02 September8.6147×
HwasunJeollanam-do, South Korea14 1,260.06 September8.6147×
WabuGyeonggi-do, South Korea3 840.08 September5.8145×
KuryeJeollanam-do, South Korea3 849.015 September5.9144×
GeojeGyeongsangnam-do, South Korea4 1,260.012 September8.8143×
NangenJeollabuk-do, South Korea12 1,270.016 September9.1140×
PubalGyeonggi-do, South Korea5 1,260.016 September9.1138×
ChuncheonGangwon-do, South Korea4 836.031 August6.4131×
Hwaseong-siGyeonggi-do, South Korea9 1,250.010 September9.6130×
YeonggwangJeollanam-do, South Korea3 1,260.08 September9.7130×
SeosanChungcheongnam-do, South Korea14 1,250.01 September9.7129×
BuanJeollabuk-do, South Korea6 1,250.031 August9.8128×
HwawŏnDaegu, South Korea3 1,260.02 September9.9127×
MiryangGyeongsangnam-do, South Korea11 1,260.02 September10.0126×
Hongch’ŏnGangwon-do, South Korea1 836.011 September6.7125×
EisenGyeongsangbuk-do, South Korea2 1,260.015 September10.1125×
CheorwonGangwon-do, South Korea6 1,260.05 September10.1125×
YecheonGyeongsangbuk-do, South Korea3 1,260.04 September10.2124×
JeongeupJeollabuk-do, South Korea4 1,260.04 September10.2124×
ChangsuJeollabuk-do, South Korea7 847.016 September6.9123×
TangjinChungcheongnam-do, South Korea6 1,250.01 September10.3121×
MungyeongGyeongsangbuk-do, South Korea2 836.029 August6.9121×
ChangnyeongGyeongsangnam-do, South Korea4 1,260.01 September10.5120×
Yangp'yŏngGyeonggi-do, South Korea8 836.518 September7.0120×
JeonjuJeollabuk-do, South Korea3 845.516 September7.1119×
YesanChungcheongnam-do, South Korea4 1,270.02 September10.8118×
NeietsuGangwon-do, South Korea3 838.02 September7.3115×
MokpoJeollanam-do, South Korea11 1,270.019 September11.2113×
JungpyongNorth Chungcheong, South Korea4 1,045.58 September9.3112×
BoryeongChungcheongnam-do, South Korea4 1,043.031 August9.3112×
KoesanNorth Chungcheong, South Korea3 1,052.03 September9.4112×
IksanJeollabuk-do, South Korea3 846.516 September7.8109×
SokchoGangwon-do, South Korea2 841.07 September7.8108×
KimhaeGyeongsangnam-do, South Korea1 838.031 August7.8107×
ChinjuGyeongsangnam-do, South Korea5 1,052.07 September9.8107×
BoseongJeollanam-do, South Korea3 840.018 September7.9106×
NamsaJeollabuk-do, South Korea5 847.016 September8.0106×
MuanJeollanam-do, South Korea7 845.57 September8.0106×
YeonilGyeongsangbuk-do, South Korea1 834.030 August7.9106×
JangheungJeollanam-do, South Korea4 844.016 September8.0106×
SinhyeonGyeongsangnam-do, South Korea10 1,260.01 September12.0105×
SinanJeollanam-do, South Korea3 845.017 September8.1104×
SejongSejong-si, South Korea6 841.029 August8.1104×
ImsilJeollabuk-do, South Korea4 839.011 September8.1104×
YeongjuGyeongsangbuk-do, South Korea3 839.029 August8.2102×
GwangjuGyeonggi-do, South Korea6 835.01 September8.2102×
NajuJeollanam-do, South Korea3 845.017 September8.3102×
Anyang-siGyeonggi-do, South Korea2 836.04 September8.3101×
HongseongChungcheongnam-do, South Korea6 1,050.018 September10.5100×
YŏnmuChungcheongnam-do, South Korea6 846.016 September8.5100×
GunsanJeollabuk-do, South Korea4 847.016 September8.698×
YeojuGyeonggi-do, South Korea7 1,048.59 September10.798×
WaegwanGyeongsangbuk-do, South Korea2 847.016 September9.193×
NonsanChungcheongnam-do, South Korea8 841.011 September9.192×
Taesal-liChungcheongnam-do, South Korea10 844.014 September9.292×
BuyeoChungcheongnam-do, South Korea5 847.014 September9.490×
GwangmyeongGyeonggi-do, South Korea2 843.03 September9.688×
HanamGyeonggi-do, South Korea2 837.510 September9.687×
GangneungGangwon-do, South Korea7 632.84 September7.387×
YangsanGyeongsangnam-do, South Korea4 847.014 September9.986×
MunsanGyeonggi-do, South Korea3 627.01 September7.584×
HaenamJeollanam-do, South Korea2 1,250.02 September15.183×
AsanChungcheongnam-do, South Korea6 844.016 September10.283×
WanjuJeollabuk-do, South Korea2 849.016 September10.382×
NamyangjuGyeonggi-do, South Korea5 633.217 September7.881×
TongyeongGyeongsangnam-do, South Korea3 849.015 September10.581×
GoseongGyeongsangnam-do, South Korea5 845.03 September10.680×
SeonghwanChungcheongnam-do, South Korea5 1,053.58 September13.379×
HwacheonGangwon-do, South Korea4 422.018 September5.577×
Icheon-siGyeonggi-do, South Korea4 843.02 September11.077×
KimjeJeollabuk-do, South Korea6 857.021 September11.376×
Ganghwa-gunIncheon, South Korea3 843.017 September11.375×
HayangGyeongsangbuk-do, South Korea6 837.510 September11.871×
Chinch'ŏnNorth Chungcheong, South Korea2 636.229 August9.666×
JangseongJeollanam-do, South Korea3 430.021 September6.566×
UngsangGyeongsangnam-do, South Korea3 637.87 September9.865×
SangjuGyeongsangbuk-do, South Korea2 430.016 September6.863×
Donghae CityGangwon-do, South Korea3 639.321 September10.263×
DaejeonDaejeon, South Korea1 425.02 September6.863×
WŏnjuGangwon-do, South Korea3 625.91 September10.659×
Bucheon-siGyeonggi-do, South Korea1 425.02 September7.358×
Seongnam-siGyeonggi-do, South Korea3 424.02 September7.358×
GijangBusan, South Korea3 425.521 September7.557×
AndongGyeongsangbuk-do, South Korea3 424.03 September7.656×
YeosuJeollanam-do, South Korea2 424.52 September7.854×
SuncheonJeollanam-do, South Korea2 431.016 September8.054×
KwangyangJeollanam-do, South Korea1 424.02 September7.954×
BusanBusan, South Korea3 427.021 September8.153×
Goyang-siGyeonggi-do, South Korea3 428.017 September8.352×
SeoulSeoul, South Korea1 425.02 September8.351×
OsanGyeonggi-do, South Korea1 429.02 September8.650×
GwangyangJeollanam-do, South Korea3 424.02 September8.550×
Uijeongbu-siGyeonggi-do, South Korea2 426.03 September8.650×
Guri-siGyeonggi-do, South Korea1 425.02 September9.047×
SuwonGyeonggi-do, South Korea1 424.52 September9.246×
NaesŏGyeongsangnam-do, South Korea3 428.02 September9.446×
ChangwonGyeongsangnam-do, South Korea1 431.02 September9.545×
ChungjuNorth Chungcheong, South Korea1 424.02 September9.445×
PohangGyeongsangbuk-do, South Korea1 428.02 September9.744×
SantyokuGangwon-do, South Korea3 423.818 September9.943×
PyeongtaekGyeonggi-do, South Korea4 432.02 September10.143×
IncheonIncheon, South Korea1 427.02 September10.043×
CheonanChungcheongnam-do, South Korea2 429.08 September10.242×
UlsanUlsan, South Korea1 432.02 September10.342×
Gimpo-siGyeonggi-do, South Korea1 428.52 September10.441×
Ansan-siGyeonggi-do, South Korea2 431.014 September10.541×
GumiGyeongsangbuk-do, South Korea2 423.52 September10.540×
HwadoGyeonggi-do, South Korea3 421.02 September13.431×

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.

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SmogRank, South Korea, September 2026: 132 cities with PM2.5 at twice their usual or more, 1 to 21 September 2026, smogrank.com/episodes/2026-09-south-korea (accessed 2 October 2026).

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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.