SmogRank / Episodes / South Korea

South Korea, June 2024

For 1 day, on 19 June 2024, 8 cities in South Korea had PM2.5 at least twice their usual for the time of year. The worst reading was Sokcho, Gangwon-do, South Korea: 34.6 µg/m³ on 19 June, about 2.1× its usual 16.5. Ended 19 June.

No cause namedWe have no fire or smoke records for these days, so we only say what the measurements show.
Cities reached8in 1 country
Days119 June 2024
Worst day19 June8 cities counted
Furthest above usual2.7×Dodong-ri

Day by day

19 June 8 cities at twice their usual or more
Cheongsong gunPohangT’aebaekSantyokuGyeongjuEisenYeongjuHayangKunwiYecheonGangneungGyeongsan-siNeietsuDaeguUngsangJumunjinPyeongchangWaegwanGumiHwawŏnMungyeongMiryangSangjuChangnyeongKimhaeGimcheonBusanChungjuChangwonWŏnjuNaesŏKoesanYeongdongKosongHongch’ŏnSinhyeonJungpyongGeojeYeojuOkcheonYangguGoseongCheongju-siChinjuTongyeongChinch'ŏnPubalChuncheonSintansinKinzanIcheon-siYangp'yŏngDaejeonSejongHwacheonChangsuAnseongGapyeongJinan-gunGwangjuHadongCheonanHwadoSeonghwanGongjuHanamWabuPyeongtaekNamyangjuNangenSeongnam-siImsilOsanNonsanYŏnmuGwangyangKuryeAsanWanjuGuri-siJeonjuNagatoKwangyangSuwonNamsaHagiYeosuSuncheonBuyeoYongsan-dongUijeongbu-siSeoulAnyang-siIksanYangjuYesanCheorwonMasudaHwaseong-siHamadaGwangmyeongAnsan-siKimjeGōtsuchōJeongeupBeolgyoGoyang-siBucheon-siHongseongDamyangTangjinGunsanIncheonŌdachō-ōdaGimpo-siMunsanBoryeongBuanHwasunGwangjuJangseongSeosanTaesal-liBoseongIzumoKoch'angMasanGanghwa-gunYaeNajuUnnanJangheungMatsueYeonggwangGionHiroshimaYeongamMiyoshiSakaiminatoMuanYasugichōHigashihiroshimaYonagoHaenamMokpoTakeharaMiharaSinanNiimiShin’ichiOnomichiFukuyamaTakahashiKasaokaAsakuchiShimogamoSōjaKurashikiTsuyamaHayashimaTottori-shiOkayamaMarugameTamanoBizenTakamatsuTonoshōHiragiShidoKariyaAioiTatsunoIkarugaToyookaHimejiKakogawachō-honmachiAndongGijangYeonilUlsanSokchoYangsanDonghae CityDodong-ri
16 Jun171819202122
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

SokchoSokcho, 16 June: 18.6 µg/m³Sokcho, 17 June: 20.0 µg/m³Sokcho, 18 June: 29.8 µg/m³Sokcho, 19 June: 34.6 µg/m³, 2.1× its usual 16.5Sokcho, 20 June: 32.7 µg/m³Sokcho, 21 June: 29.5 µg/m³Sokcho, 22 June: 23.7 µg/m³UlsanUlsan, 16 June: 20.9 µg/m³Ulsan, 17 June: 19.2 µg/m³Ulsan, 18 June: 23.9 µg/m³Ulsan, 19 June: 31.1 µg/m³, 2.1× its usual 14.7Ulsan, 20 June: 19.4 µg/m³Ulsan, 21 June: 12.8 µg/m³Ulsan, 22 June: 8.1 µg/m³Donghae CityDonghae City, 16 June: 13.1 µg/m³Donghae City, 17 June: 14.0 µg/m³Donghae City, 18 June: 21.4 µg/m³Donghae City, 19 June: 27.5 µg/m³, 2.2× its usual 12.5Donghae City, 20 June: 24.2 µg/m³Donghae City, 21 June: 17.9 µg/m³Donghae City, 22 June: 17.5 µg/m³Dodong-riDodong-ri, 16 June: 15.0 µg/m³Dodong-ri, 17 June: 13.4 µg/m³Dodong-ri, 18 June: 20.6 µg/m³Dodong-ri, 19 June: 27.2 µg/m³, 2.7× its usual 10.2Dodong-ri, 20 June: 20.9 µg/m³Dodong-ri, 21 June: no readingDodong-ri, 22 June: no readingYangsanYangsan, 16 June: 14.8 µg/m³Yangsan, 17 June: 19.5 µg/m³Yangsan, 18 June: 21.3 µg/m³Yangsan, 19 June: 25.2 µg/m³, 2.2× its usual 11.7Yangsan, 20 June: 14.2 µg/m³Yangsan, 21 June: 10.9 µg/m³Yangsan, 22 June: 5.9 µg/m³YeonilYeonil, 16 June: 13.1 µg/m³Yeonil, 17 June: 12.6 µg/m³Yeonil, 18 June: 16.2 µg/m³Yeonil, 19 June: 25.2 µg/m³, 2.1× its usual 12.2Yeonil, 20 June: 20.2 µg/m³Yeonil, 21 June: 15.2 µg/m³Yeonil, 22 June: no readingGijangGijang, 16 June: 18.7 µg/m³Gijang, 17 June: 19.0 µg/m³Gijang, 18 June: 21.1 µg/m³Gijang, 19 June: 25.1 µg/m³, 2.1× its usual 11.8Gijang, 20 June: 15.4 µg/m³Gijang, 21 June: 9.9 µg/m³Gijang, 22 June: 4.8 µg/m³AndongAndong, 16 June: 18.7 µg/m³Andong, 17 June: 16.0 µg/m³Andong, 18 June: 22.3 µg/m³Andong, 19 June: 25.0 µg/m³, 2.0× its usual 12.5Andong, 20 June: 24.5 µg/m³Andong, 21 June: 17.4 µg/m³Andong, 22 June: no reading16 Jun171819202122
Every counted city, in the order the episode reached them, 3 days before to 3 after. Each square is a day, coloured by that day's PM2.5; outlined: at twice the city's usual or more.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

Every city it reached

CityDaysHighestUsualAbove usual
Dodong-riGyeongsangbuk-do, South Korea1 27.219 June10.22.7×
Donghae CityGangwon-do, South Korea1 27.519 June12.52.2×
YangsanGyeongsangnam-do, South Korea1 25.219 June11.72.2×
SokchoGangwon-do, South Korea1 34.619 June16.52.1×
UlsanUlsan, South Korea1 31.119 June14.72.1×
YeonilGyeongsangbuk-do, South Korea1 25.219 June12.22.1×
GijangBusan, South Korea1 25.119 June11.82.1×
AndongGyeongsangbuk-do, South Korea1 25.019 June12.52.0×

Daily means in µg/m³, over the days each city counted in this episode. Highest: its highest of those days. Usual: the city's median for the time of year of that day (its days within 21 days of the date, every year, leaving out the week around it). Above usual: its highest day against that, with a usual under 5 µg/m³ taken as 5.

Against other episodes in South Korea

Number 64 of 64 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 64.

Use this page

SmogRank, South Korea, June 2024: 8 cities with PM2.5 at twice their usual or more, 19 June 2024, smogrank.com/episodes/2024-06-south-korea (accessed 5 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.