SmogRank / Countries / Japan / August 2026
Most polluted cities in Japan, August 2026
527 cities in Japan ranked by their average PM2.5 over the 31 days. Worst: Tottori-shi at 12.1 µg/m³, #373 of 2,312 cities in the world. Cleanest: Wakuya at 4.0. A city needs measurements on 70% of the days to be ranked.
- 1Tottori-shiTottori 12.1
- 1OnomichiHiroshima 12.1
- 3ToyamaToyama 11.4
- 3Shin’ichiHiroshima 11.4
- 3SaseboNagasaki 11.4
- 6Tanushimarumachi-toyokiFukuoka 11.2
- 7HitaOita 11.0
- 7FukuyamaHiroshima 11.0
- 7KamisuIbaraki 11.0
- 10FukuokaFukuoka 10.9
- 11WakasugiFukuoka 10.7
- 12IizukaFukuoka 10.5
- 13TsuchiuraIbaraki 10.4
- 14Kashima-shiIbaraki 10.3
- 14NagaiYamagata 10.3
- 14OwariasahiAichi 10.3
- 14MatsuuraNagasaki 10.3
- 18KurayoshiTottori 10.2
- 18UkihaFukuoka 10.2
- 18ItoshimaFukuoka 10.2
- 21SagaSaga 10.1
- 21NagahamaShiga 10.1
- 21Maebaru-chūōFukuoka 10.1
- 24TamanoOkayama 10.0
- 24Imarichō-kōSaga 10.0
- 24AraoKumamoto 10.0
- 27ItoigawaNiigata 9.9
- 27OgōriFukuoka 9.9
- 29ŌmutaFukuoka 9.8
- 29NyūzenToyama 9.8
- 29Hondomachi-hondoKumamoto 9.8
- 29HachiōjiTokyo 9.8
- 29TakuSaga 9.8
- 29MunakataFukuoka 9.8
- 35TamanaKumamoto 9.7
- 35NiihamaEhime 9.7
- 35Fukui-shiFukui 9.7
- 35ChigasakiKanagawa 9.7
- 35ImizuToyama 9.7
- 35HigashigōSaga 9.7
- 35BizenOkayama 9.7
- 42Shimo-tsumaIbaraki 9.6
- 42ShidoKagawa 9.6
- 42MinamirinkanKanagawa 9.6
- 42KogaFukuoka 9.6
- 42KasaokaOkayama 9.6
- 42Kanzakimachi-kanzakiSaga 9.6
- 42SaijōEhime 9.6
- 42KasugaFukuoka 9.6
- 50TogitsuNagasaki 9.5
- 50TakahashiOkayama 9.5
- 50TagawaFukuoka 9.5
- 50SusakiKochi 9.5
- 50NōgataFukuoka 9.5
- 50HagiYamaguchi 9.5
- 50NakaIbaraki 9.5
- 50InabeMie 9.5
- 50TsushimaNagasaki 9.5
- 59TakaokaToyama 9.4
- 59ŌmuraNagasaki 9.4
- 59NobeokaMiyazaki 9.4
- 59NishiwakiHyōgo 9.4
- 59FukuchiyamaKyoto 9.4
- 59AiharaKanagawa 9.4
- 59IshinomakiMiyagi 9.4
- 66HimimachiToyama 9.3
- 67MarugameKagawa 9.2
- 67KurashikiOkayama 9.2
- 67KashimaSaga 9.2
- 67FukuroiShizuoka 9.2
- 67KariyaHyōgo 9.2
- 67MinawaKanagawa 9.2
- 67HokotaIbaraki 9.2
- 74TakayamaGifu 9.1
- 74Ōyanomachi-noboritateKumamoto 9.1
- 74Kakogawachō-honmachiHyōgo 9.1
- 74IwadeWakayama 9.1
- 74IkedachōTokushima 9.1
- 74SagaeYamagata 9.1
- 74JōetsuNiigata 9.1
- 81ZentsujichóKagawa 9.0
- 81UtoKumamoto 9.0
- 81Ureshinomachi-shimojukuSaga 9.0
- 81TsuyamaOkayama 9.0
- 81TokiGifu 9.0
- 81TaharaAichi 9.0
- 81SōjaOkayama 9.0
- 81OdawaraKanagawa 9.0
- 81KitakyushuFukuoka 9.0
- 81KandaFukuoka 9.0
- 81AioiHyōgo 9.0
- 81KaniGifu 9.0
- 81KuwanaMie 9.0
- 81AyaseKanagawa 9.0
- 95HonmachiKumamoto 8.9
- 95TakeoSaga 8.9
- 95OkayamaOkayama 8.9
- 95MiharaHiroshima 8.9
- 95KikuchiKumamoto 8.9
- 95Kan’onjichōKagawa 8.9
- 95IseharaKanagawa 8.9
- 95HigashihiroshimaHiroshima 8.9
- 103ShingūWakayama 8.8
- 103TsuruokaYamagata 8.8
- 103TakamatsuKagawa 8.8
- 103MinatoWakayama 8.8
- 103OnoHyōgo 8.8
- 103Narutochō-mitsuishiTokushima 8.8
- 103MifuneKumamoto 8.8
- 103InuyamaAichi 8.8
- 103HekinanAichi 8.8
- 103ImabariEhime 8.8
- 103YameFukuoka 8.8
- 103HyūgaMiyazaki 8.8
- 115YonagoTottori 8.7
- 115ToyookaHyōgo 8.7
- 115ShibataNiigata 8.7
- 115SakataYamagata 8.7
- 115ŌzuKumamoto 8.7
- 115ObitaNagasaki 8.7
- 115MatsutōIshikawa 8.7
- 115KariyaAichi 8.7
- 115IzumoShimane 8.7
- 115IkarugaHyōgo 8.7
- 115HadanoKanagawa 8.7
- 115IwanumaMiyagi 8.7
- 115MinokamoGifu 8.7
- 115BuzenFukuoka 8.7
- 115KogaFukuoka 8.7
- 115ShikokuchūōEhime 8.7
- 115MimaTokushima 8.7
- 132TatebayashiGunma 8.6
- 132MiyoshiHiroshima 8.6
- 132AyabeKyoto 8.6
- 132MatsusakaMie 8.6
- 132HigashikurumeTokyo 8.6
- 137YokkaichiMie 8.5
- 137YasugichōShimane 8.5
- 137TsubataIshikawa 8.5
- 137TomiokaGunma 8.5
- 137TakanabeMiyazaki 8.5
- 137TajimiGifu 8.5
- 137HigashinozoeHyōgo 8.5
- 137KofuYamanashi 8.5
- 137IwataShizuoka 8.5
- 137HikoneShiga 8.5
- 137IwakiFukushima 8.5
- 137KagaIshikawa 8.5
- 137TatsunoHyōgo 8.5
- 137SaikaiNagasaki 8.5
- 151YokohamaKanagawa 8.4
- 151Uekimachi-mōnoKumamoto 8.4
- 151TakeharaHiroshima 8.4
- 151SumotoHyōgo 8.4
- 151ShimonosekiYamaguchi 8.4
- 151SandachōHyōgo 8.4
- 151SabaeFukui 8.4
- 151NagoyaAichi 8.4
- 151MiyazuKyoto 8.4
- 151KurihamaKanagawa 8.4
- 151KomatsuIshikawa 8.4
- 151KashiwaraNara 8.4
- 151Kamojimachō-jōgejimaTokushima 8.4
- 151KakamigaharaGifu 8.4
- 151IsahayaNagasaki 8.4
- 151TonamiToyama 8.4
- 151HiragiKagawa 8.4
- 151Minami-AlpsYamanashi 8.4
- 151AmaAichi 8.4
- 170YoukaichiShiga 8.3
- 170TokonameAichi 8.3
- 170OkazakiAichi 8.3
- 170MikuniFukui 8.3
- 170MachidaTokyo 8.3
- 170KureHiroshima 8.3
- 170KochiKochi 8.3
- 170KaratsuSaga 8.3
- 170IchinomiyaAichi 8.3
- 170GifuGifu 8.3
- 170GamagōriAichi 8.3
- 170MatsuyamaEhime 8.3
- 170YonezawaYamagata 8.3
- 170TakashimaShiga 8.3
- 170NiizaSaitama 8.3
- 170ShonaiYamagata 8.3
- 170KotōKumamoto 8.3
- 170TōkaiAichi 8.3
- 170YoshinogawaTokushima 8.3
- 170UnnanShimane 8.3
- 170AsakuchiOkayama 8.3
- 191UozuToyama 8.2
- 191TakatsukiOsaka 8.2
- 191SekimachiGifu 8.2
- 191NishioAichi 8.2
- 191KainanWakayama 8.2
- 191HiroshimaHiroshima 8.2
- 191GyōdaSaitama 8.2
- 191GionHiroshima 8.2
- 191AtamiShizuoka 8.2
- 191NagatoYamaguchi 8.2
- 191ShiroishiMiyagi 8.2
- 191Natori-shiMiyagi 8.2
- 191MizuhoGifu 8.2
- 191NantanKyoto 8.2
- 191FuefukiYamanashi 8.2
- 206AtsugiKanagawa 8.1
- 206TosuSaga 8.1
- 206TokyoTokyo 8.1
- 206TokushimaTokushima 8.1
- 206TokorozawaSaitama 8.1
- 206TakinomiyaKagawa 8.1
- 206OnodaYamaguchi 8.1
- 206NakatsuOita 8.1
- 206NagasakiNagasaki 8.1
- 206KyotoKyoto 8.1
- 206KukichūōSaitama 8.1
- 206KōtariKyoto 8.1
- 206AshikagaTochigi 8.1
- 206AnanTokushima 8.1
- 206SōmaFukushima 8.1
- 206YamatoKanagawa 8.1
- 206ShūnanYamaguchi 8.1
- 223YamaguchiYamaguchi 8.0
- 223YaitaTochigi 8.0
- 223TenriNara 8.0
- 223SetoAichi 8.0
- 223Ōdachō-ōdaShimane 8.0
- 223NakamaFukuoka 8.0
- 223MinamataKumamoto 8.0
- 223MenumaSaitama 8.0
- 223KobayashiMiyazaki 8.0
- 223KamakuraKanagawa 8.0
- 223HōfuYamaguchi 8.0
- 223HimejiHyōgo 8.0
- 223HigashiosakaOsaka 8.0
- 223AmagasakiHyōgo 8.0
- 223KimitsuChiba 8.0
- 223SakuraChiba 8.0
- 223MookaTochigi 8.0
- 223KakudaMiyagi 8.0
- 223ShintomiMiyazaki 8.0
- 223AkishimaTokyo 8.0
- 223Higashi-MatsuyamaSaitama 8.0
- 223AzaminoKanagawa 8.0
- 223KodairaTokyo 8.0
- 246YaeHiroshima 7.9
- 246TakarazukaHyōgo 7.9
- 246ShibukawaGunma 7.9
- 246OnoFukui 7.9
- 246ObamaFukui 7.9
- 246NiimiOkayama 7.9
- 246MasudaShimane 7.9
- 246MaizuruKyoto 7.9
- 246KoshigayaSaitama 7.9
- 246KishiwadaOsaka 7.9
- 246KiryūGunma 7.9
- 246IkomaNara 7.9
- 246HonjōSaitama 7.9
- 246HiratsukaKanagawa 7.9
- 246ShinjōYamagata 7.9
- 246HigashineYamagata 7.9
- 246ChibaChiba 7.9
- 246HachinoheAomori 7.9
- 246KaizuGifu 7.9
- 246NoboritoKanagawa 7.9
- 246FuchūTokyo 7.9
- 246IkiNagasaki 7.9
- 246GotōNagasaki 7.9
- 269AkashiHyōgo 7.8
- 269YoriiSaitama 7.8
- 269YokosukaKanagawa 7.8
- 269SuzukaMie 7.8
- 269SanoTochigi 7.8
- 269SakaiOsaka 7.8
- 269SakadoSaitama 7.8
- 269ŌtakeHiroshima 7.8
- 269OsakaOsaka 7.8
- 269NishinomiyaHyōgo 7.8
- 269KōnosuSaitama 7.8
- 269AgeoSaitama 7.8
- 269Hitachi-NakaIbaraki 7.8
- 269ChikuseiIbaraki 7.8
- 269HabikinoOsaka 7.8
- 269HigashimurayamaTokyo 7.8
- 285YukuhashiFukuoka 7.7
- 285YaoOsaka 7.7
- 285Ueno-ebisumachiMie 7.7
- 285ShimadaShizuoka 7.7
- 285SaikūMie 7.7
- 285ŌmeTokyo 7.7
- 285ŌitaOita 7.7
- 285NumazuShizuoka 7.7
- 285NabariMie 7.7
- 285KumamotoKumamoto 7.7
- 285KawaguchiSaitama 7.7
- 285Kashihara-shiNara 7.7
- 285KameokaKyoto 7.7
- 285KakegawaShizuoka 7.7
- 285GotembaShizuoka 7.7
- 285MiuraKanagawa 7.7
- 285YoshiokaMiyagi 7.7
- 285MitoIbaraki 7.7
- 285HashimaGifu 7.7
- 285Kawachi-NaganoOsaka 7.7
- 285IgaMie 7.7
- 306YawataKyoto 7.6
- 306ToyotaAichi 7.6
- 306ShinshiroAichi 7.6
- 306ShimodaShizuoka 7.6
- 306OyamaTochigi 7.6
- 306Niitsu-honchōNiigata 7.6
- 306KaminokawaTochigi 7.6
- 306Kameda-honchōNiigata 7.6
- 306HōryūjiNara 7.6
- 306HashimotoWakayama 7.6
- 306GōtsuchōShimane 7.6
- 306FujisawaKanagawa 7.6
- 306AnjōAichi 7.6
- 306AsakaSaitama 7.6
- 306IyoEhime 7.6
- 306Tagajō-shiMiyagi 7.6
- 306BandōIbaraki 7.6
- 306Minami-SōmaFukushima 7.6
- 306KosaiShizuoka 7.6
- 306JōyōKyoto 7.6
- 326TsurugaFukui 7.5
- 326Sakai-nakajimaGunma 7.5
- 326ŌtsuShiga 7.5
- 326MiyazakiMiyazaki 7.5
- 326KobeHyōgo 7.5
- 326KawagoeSaitama 7.5
- 326KameyamaMie 7.5
- 326IzumisanoOsaka 7.5
- 326IzumiOsaka 7.5
- 326HitoyoshiKumamoto 7.5
- 326FujiShizuoka 7.5
- 326ChiryūAichi 7.5
- 326YamagataYamagata 7.5
- 326KesennumaMiyagi 7.5
- 326IchiharaChiba 7.5
- 326IrumaSaitama 7.5
- 326MinamichitaAichi 7.5
- 326MineYamaguchi 7.5
- 326MinamibōsōChiba 7.5
- 345YanagawaFukuoka 7.4
- 345UjiKyoto 7.4
- 345UbeYamaguchi 7.4
- 345TondabayashichōOsaka 7.4
- 345ShizuokaShizuoka 7.4
- 345NiigataNiigata 7.4
- 345NichinanMiyazaki 7.4
- 345MieOita 7.4
- 345KanumaTochigi 7.4
- 345IwakuniYamaguchi 7.4
- 345IgusaSaitama 7.4
- 345HakuiIshikawa 7.4
- 345AkiKochi 7.4
- 345MobaraChiba 7.4
- 345KinokawaWakayama 7.4
- 345SaitamaSaitama 7.4
- 345KizugawaKyoto 7.4
- 345NankokuKochi 7.4
- 345KyōtangoKyoto 7.4
- 364UtsunomiyaTochigi 7.3
- 364UrayasuChiba 7.3
- 364UenoharaYamanashi 7.3
- 364TsuMie 7.3
- 364TateyamaChiba 7.3
- 364ŌtsukiYamanashi 7.3
- 364NodaChiba 7.3
- 364NanaoIshikawa 7.3
- 364NakamuraKochi 7.3
- 364KusatsuShiga 7.3
- 364KisarazuChiba 7.3
- 364KazoSaitama 7.3
- 364KashiwaChiba 7.3
- 364IseMie 7.3
- 364HirakataOsaka 7.3
- 364HanyūSaitama 7.3
- 364HandaAichi 7.3
- 364HamadaShimane 7.3
- 364FujinomiyaShizuoka 7.3
- 364NaritaChiba 7.3
- 364InashikiIbaraki 7.3
- 364JōsōIbaraki 7.3
- 364NasukarasuyamaTochigi 7.3
- 364HigashimatsushimaMiyagi 7.3
- 364YawatahamaEhime 7.3
- 364FujiyoshidaYamanashi 7.3
- 364KamagayaChiba 7.3
- 391YokotaTokyo 7.2
- 391TsurusakiOita 7.2
- 391TobaMie 7.2
- 391ShironeNiigata 7.2
- 391SaikiOita 7.2
- 391Nara-shiNara 7.2
- 391KitahamaShiga 7.2
- 391KanazawaIshikawa 7.2
- 391IidaNagano 7.2
- 391IbiGifu 7.2
- 391HijiOita 7.2
- 391YachimataChiba 7.2
- 391MatsushimaMiyagi 7.2
- 391KitaibarakiIbaraki 7.2
- 391HitachiIbaraki 7.2
- 391MinamiashigaraKanagawa 7.2
- 391YachiyoChiba 7.2
- 391NarashinoChiba 7.2
- 409YanaiYamaguchi 7.1
- 409ToyonakaOsaka 7.1
- 409MakiNiigata 7.1
- 409TorideIbaraki 7.1
- 409MiyakoIwate 7.1
- 409KōriyamaFukushima 7.1
- 409HirosakiAomori 7.1
- 409AsoKumamoto 7.1
- 409EbinaKanagawa 7.1
- 409KumanoMie 7.1
- 409ShirakawaFukushima 7.1
- 420ToyohashiAichi 7.0
- 420NagaokaNiigata 7.0
- 420NaganoNagano 7.0
- 420Kodamachō-kodamaminamiSaitama 7.0
- 420SayamaSaitama 7.0
- 420IshiokaIbaraki 7.0
- 420OyabeToyama 7.0
- 420SayamaOsaka 7.0
- 428TochigiTochigi 6.9
- 428HamamatsuShizuoka 6.9
- 428AnamizuIshikawa 6.9
- 428UwajimaEhime 6.9
- 428KikugawaShizuoka 6.9
- 428SusonoShizuoka 6.9
- 428MinamiuonumaNiigata 6.9
- 428SennanOsaka 6.9
- 428KirishimaKagoshima 6.9
- 428YonoOsaka 6.9
- 438SuwaNagano 6.8
- 438ShinagawaEhime 6.8
- 438NonoichiIshikawa 6.8
- 438KasukabeSaitama 6.8
- 438IzumiKagoshima 6.8
- 438InoKochi 6.8
- 438ChichibuSaitama 6.8
- 438SendaiMiyagi 6.8
- 438SugaiKyoto 6.8
- 447TsukumiuraOita 6.7
- 447MatsueShimane 6.7
- 447KagoshimaKagoshima 6.7
- 447ŌmihachimanShiga 6.7
- 447GobōWakayama 6.7
- 447YotsukaidōChiba 6.7
- 447MoriokaIwate 6.7
- 447KasamaIbaraki 6.7
- 447AomoriAomori 6.7
- 447NisshinAichi 6.7
- 447KaminomaAichi 6.7
- 458MatsudoChiba 6.6
- 458HannōSaitama 6.6
- 458FujiedaShizuoka 6.6
- 458YokoshibaChiba 6.6
- 458SawaraChiba 6.6
- 458ŌharaChiba 6.6
- 458HitachiomiyaIbaraki 6.6
- 458InzaiChiba 6.6
- 458ŌsakiMiyagi 6.6
- 458MotosuGifu 6.6
- 458SadoNiigata 6.6
- 469GeroGifu 6.5
- 469ŌtaGunma 6.5
- 469NumataGunma 6.5
- 469MiyakonojōMiyazaki 6.5
- 469HamakitaShizuoka 6.5
- 469AjikiChiba 6.5
- 475SuzakaNagano 6.4
- 475ShimaMie 6.4
- 475OwaseMie 6.4
- 475NakanojōGunma 6.4
- 475MatsumotoNagano 6.4
- 475KumagayaSaitama 6.4
- 475ImaichiTochigi 6.4
- 475ŌamiChiba 6.4
- 475ChikumaNagano 6.4
- 475SōsaChiba 6.4
- 485OgawamachiSaitama 6.3
- 485BeppuOita 6.3
- 485HikariYamaguchi 6.3
- 485IchinosekiIwate 6.3
- 485Aizu-WakamatsuFukushima 6.3
- 485IzunokuniShizuoka 6.3
- 491OkayaNagano 6.2
- 491ChitoseHokkaido 6.2
- 491AmamiKagoshima 6.2
- 491SodegauraChiba 6.2
- 491MinamikyushuKagoshima 6.2
- 496TanabeWakayama 6.1
- 496KudamatsuYamaguchi 6.1
- 496HanamakiIwate 6.1
- 499SakuNagano 6.0
- 499KatsuuraChiba 6.0
- 499KōkaShiga 6.0
- 499TakizawaIwate 6.0
- 503SendaiKagoshima 5.9
- 504KushikinoKagoshima 5.8
- 504KanoyaKagoshima 5.8
- 504TōganeChiba 5.8
- 504OmigawaChiba 5.8
- 504HakodateHokkaido 5.8
- 509UedaNagano 5.7
- 510AsahikawaHokkaido 5.5
- 511KogaIbaraki 5.4
- 511Kaseda-shirakameKagoshima 5.4
- 511KujiIwate 5.4
- 511KuriharaMiyagi 5.4
- 515InaNagano 5.3
- 515SapporoHokkaido 5.3
- 515KushiroHokkaido 5.3
- 518KamaishiIwate 5.2
- 518ObihiroHokkaido 5.2
- 518KitamiHokkaido 5.2
- 518TomeMiyagi 5.2
- 522SakaiminatoTottori 5.0
- 522ŌgakiGifu 5.0
- 522TomakomaiHokkaido 5.0
- 525MuroranHokkaido 4.8
- 526ŌshūIwate 4.6
- 527WakuyaMiyagi 4.0
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+