SmogRank / Countries / Japan / March 2026
Most polluted cities in Japan, March 2026
536 cities in Japan ranked by their average PM2.5 over the 31 days. Worst: Onomichi at 17.3 µg/m³, #390 of 2,318 cities in the world. Cleanest: Owase at 5.5. A city needs measurements on 70% of the days to be ranked.
- 1OnomichiHiroshima 17.3
- 2HitaOita 17.1
- 3FukuyamaHiroshima 15.5
- 4Shin’ichiHiroshima 15.4
- 5ŌmutaFukuoka 14.5
- 6Maebaru-chūōFukuoka 13.8
- 6SaijōEhime 13.8
- 8OnodaYamaguchi 13.7
- 9AraoKumamoto 13.6
- 10Uekimachi-mōnoKumamoto 13.5
- 10MuroranHokkaido 13.5
- 12NiihamaEhime 13.3
- 12ChikugoFukuoka 13.3
- 12AsakuchiOkayama 13.3
- 15SaseboNagasaki 13.2
- 15Ōyanomachi-noboritateKumamoto 13.2
- 15KurashikiOkayama 13.2
- 15KumamotoKumamoto 13.2
- 15Kan’onjichōKagawa 13.2
- 15FukuokaFukuoka 13.2
- 21MoriokaIwate 13.1
- 21FukushimaFukushima 13.1
- 23ImabariEhime 13.0
- 24UtoKumamoto 12.9
- 24Tanushimarumachi-toyokiFukuoka 12.9
- 24TamanaKumamoto 12.9
- 24TakamatsuKagawa 12.9
- 24Hondomachi-hondoKumamoto 12.9
- 24KotōKumamoto 12.9
- 24HigashihiroshimaHiroshima 12.9
- 31ShikokuchūōEhime 12.8
- 32TagawaFukuoka 12.7
- 32ŌzuKumamoto 12.7
- 32MiyakonojōMiyazaki 12.7
- 32BeppuOita 12.7
- 32YurihonjōAkita 12.7
- 32TsushimaNagasaki 12.7
- 38MinamataKumamoto 12.6
- 38HigashiosakaOsaka 12.6
- 38ŌdateAkita 12.6
- 38HirosakiAomori 12.6
- 42ShibataNiigata 12.5
- 42MifuneKumamoto 12.5
- 42KagoshimaKagoshima 12.5
- 42AomoriAomori 12.5
- 42JōetsuNiigata 12.5
- 42KogaFukuoka 12.5
- 42HyūgaMiyazaki 12.5
- 49HonmachiKumamoto 12.4
- 49KitakyushuFukuoka 12.4
- 49NagaiYamagata 12.4
- 49HigashigōSaga 12.4
- 53ToyookaHyōgo 12.3
- 53TakeoSaga 12.3
- 53MiyakoIwate 12.3
- 53IshinomakiMiyagi 12.3
- 57TakanabeMiyazaki 12.2
- 57HigashinozoeHyōgo 12.2
- 57IizukaFukuoka 12.2
- 57ShiroishiMiyagi 12.2
- 57OgaAkita 12.2
- 57OgōriFukuoka 12.2
- 57BizenOkayama 12.2
- 64Tottori-shiTottori 12.1
- 64SōjaOkayama 12.1
- 64Imarichō-kōSaga 12.1
- 67YukuhashiFukuoka 12.0
- 67TogitsuNagasaki 12.0
- 67NyūzenToyama 12.0
- 67NōgataFukuoka 12.0
- 67NishiwakiHyōgo 12.0
- 67TakashimaShiga 12.0
- 73TamanoOkayama 11.9
- 73KogaFukuoka 11.9
- 73KikuchiKumamoto 11.9
- 73Kakogawachō-honmachiHyōgo 11.9
- 73FukuchiyamaKyoto 11.9
- 73TakuSaga 11.9
- 79YawataKyoto 11.8
- 79TsubataIshikawa 11.8
- 79SuzakaNagano 11.8
- 79KashimaSaga 11.8
- 79HijiOita 11.8
- 79ImizuToyama 11.8
- 79ItoshimaFukuoka 11.8
- 79GotōNagasaki 11.8
- 87TsuyamaOkayama 11.7
- 87TakaokaToyama 11.7
- 87ShidoKagawa 11.7
- 87KureHiroshima 11.7
- 87KasaokaOkayama 11.7
- 87GyōdaSaitama 11.7
- 87AmagasakiHyōgo 11.7
- 87SagaeYamagata 11.7
- 87NantanKyoto 11.7
- 96SagaSaga 11.6
- 96MiyazuKyoto 11.6
- 96KurayoshiTottori 11.6
- 96IzumiKagoshima 11.6
- 96HōryūjiNara 11.6
- 96HitoyoshiKumamoto 11.6
- 96MatsuyamaEhime 11.6
- 96OwariasahiAichi 11.6
- 104YokkaichiMie 11.5
- 104YoukaichiShiga 11.5
- 104UbeYamaguchi 11.5
- 104ToyamaToyama 11.5
- 104ShimonosekiYamaguchi 11.5
- 104SendaiKagoshima 11.5
- 104KushikinoKagoshima 11.5
- 104HimimachiToyama 11.5
- 104AyabeKyoto 11.5
- 104IyoEhime 11.5
- 114UozuToyama 11.4
- 114TenriNara 11.4
- 114OyamaTochigi 11.4
- 114MatsueShimane 11.4
- 114MarugameKagawa 11.4
- 114MaizuruKyoto 11.4
- 114KyotoKyoto 11.4
- 114Kodamachō-kodamaminamiSaitama 11.4
- 114Kanzakimachi-kanzakiSaga 11.4
- 114AkitaAkita 11.4
- 114AsoKumamoto 11.4
- 125ŌtakeHiroshima 11.3
- 125OsakaOsaka 11.3
- 125OnoHyōgo 11.3
- 125ŌmuraNagasaki 11.3
- 125NagaokaNiigata 11.3
- 125IwakuniYamaguchi 11.3
- 125YonezawaYamagata 11.3
- 125MinamikyushuKagoshima 11.3
- 133AkashiHyōgo 11.2
- 133ZentsujichóKagawa 11.2
- 133MiharaHiroshima 11.2
- 133KishiwadaOsaka 11.2
- 133KanoyaKagoshima 11.2
- 133IzumisanoOsaka 11.2
- 133ItoigawaNiigata 11.2
- 133Fukui-shiFukui 11.2
- 133TsuchiuraIbaraki 11.2
- 133TonamiToyama 11.2
- 143TosuSaga 11.1
- 143ŌtaGunma 11.1
- 143MatsutōIshikawa 11.1
- 143Kaseda-shirakameKagoshima 11.1
- 143KandaFukuoka 11.1
- 143NagatoYamaguchi 11.1
- 143MinawaKanagawa 11.1
- 143ChitoseHokkaido 11.1
- 143SadoNiigata 11.1
- 152TokonameAichi 11.0
- 152TakahashiOkayama 11.0
- 152SakadoSaitama 11.0
- 152IgusaSaitama 11.0
- 152HiroshimaHiroshima 11.0
- 152HikoneShiga 11.0
- 152HakodateHokkaido 11.0
- 152MatsuuraNagasaki 11.0
- 152KirishimaKagoshima 11.0
- 152UkihaFukuoka 11.0
- 162YanagawaFukuoka 10.9
- 162TomiokaGunma 10.9
- 162NichinanMiyazaki 10.9
- 162NagasakiNagasaki 10.9
- 162KakamigaharaGifu 10.9
- 162IsahayaNagasaki 10.9
- 162HikariYamaguchi 10.9
- 162NoshiroAkita 10.9
- 170Ureshinomachi-shimojukuSaga 10.8
- 170Shimo-tsumaIbaraki 10.8
- 170NiigataNiigata 10.8
- 170NakatsuOita 10.8
- 170MikuniFukui 10.8
- 170KaratsuSaga 10.8
- 170KariyaHyōgo 10.8
- 170BuzenFukuoka 10.8
- 170SugaiKyoto 10.8
- 170WakasugiFukuoka 10.8
- 180TsurusakiOita 10.7
- 180TakeharaHiroshima 10.7
- 180TaharaAichi 10.7
- 180ShironeNiigata 10.7
- 180SakaiOsaka 10.7
- 180ŌitaOita 10.7
- 180NobeokaMiyazaki 10.7
- 180MiyazakiMiyazaki 10.7
- 180KōtariKyoto 10.7
- 180KariyaAichi 10.7
- 180KameokaKyoto 10.7
- 180IkedachōTokushima 10.7
- 180HanyūSaitama 10.7
- 180HagiYamaguchi 10.7
- 180AnamizuIshikawa 10.7
- 180AioiHyōgo 10.7
- 180AsahikawaHokkaido 10.7
- 180ChikuseiIbaraki 10.7
- 180KagaIshikawa 10.7
- 180KyōtangoKyoto 10.7
- 200YonagoTottori 10.6
- 200TanabeWakayama 10.6
- 200SumotoHyōgo 10.6
- 200OkayamaOkayama 10.6
- 200MorohongōSaitama 10.6
- 200KusatsuShiga 10.6
- 200KazoSaitama 10.6
- 200Kameda-honchōNiigata 10.6
- 200AgeoSaitama 10.6
- 200ŌsakiMiyagi 10.6
- 210YaeHiroshima 10.5
- 210Sakai-nakajimaGunma 10.5
- 210NakamaFukuoka 10.5
- 210HimejiHyōgo 10.5
- 210AsakaSaitama 10.5
- 210YoshiokaMiyagi 10.5
- 210YokoteAkita 10.5
- 210ShinjōYamagata 10.5
- 210KasugaFukuoka 10.5
- 210ShonaiYamagata 10.5
- 220YasugichōShimane 10.4
- 220UjiKyoto 10.4
- 220SandachōHyōgo 10.4
- 220SakaiminatoTottori 10.4
- 220ObitaNagasaki 10.4
- 220NishinomiyaHyōgo 10.4
- 220NahaOkinawa 10.4
- 220MenumaSaitama 10.4
- 220KōnosuSaitama 10.4
- 220KobayashiMiyazaki 10.4
- 220IzumoShimane 10.4
- 220HannōSaitama 10.4
- 220AnanTokushima 10.4
- 220Misato, SaitamaSaitama 10.4
- 220Higashi-MatsuyamaSaitama 10.4
- 220IrumaSaitama 10.4
- 220HigashimatsushimaMiyagi 10.4
- 220KaniGifu 10.4
- 238TsuruokaYamagata 10.3
- 238NagoOkinawa 10.3
- 238KumagayaSaitama 10.3
- 238KudamatsuYamaguchi 10.3
- 238KomatsuIshikawa 10.3
- 238IkarugaHyōgo 10.3
- 238HakuiIshikawa 10.3
- 238Natori-shiMiyagi 10.3
- 238KesennumaMiyagi 10.3
- 238HachinoheAomori 10.3
- 238ShintomiMiyazaki 10.3
- 238SōmaFukushima 10.3
- 238ShūnanYamaguchi 10.3
- 251YoriiSaitama 10.2
- 251YokotaTokyo 10.2
- 251UtsunomiyaTochigi 10.2
- 251ShibukawaGunma 10.2
- 251NagahamaShiga 10.2
- 251MinamirinkanKanagawa 10.2
- 251KukichūōSaitama 10.2
- 251HashimotoWakayama 10.2
- 251YamagataYamagata 10.2
- 251HashimaGifu 10.2
- 251JōyōKyoto 10.2
- 251TatsunoHyōgo 10.2
- 251IkiNagasaki 10.2
- 251UnnanShimane 10.2
- 265YamaguchiYamaguchi 10.1
- 265TsukumiuraOita 10.1
- 265SuzukaMie 10.1
- 265MinatoWakayama 10.1
- 265NishioAichi 10.1
- 265Narutochō-mitsuishiTokushima 10.1
- 265KanazawaIshikawa 10.1
- 265KainanWakayama 10.1
- 265ŌmihachimanShiga 10.1
- 265OkinawaOkinawa 10.1
- 265Tagajō-shiMiyagi 10.1
- 265KōriyamaFukushima 10.1
- 265HigashineYamagata 10.1
- 265HiragiKagawa 10.1
- 265MizuhoGifu 10.1
- 280SōkaSaitama 10.0
- 280SanoTochigi 10.0
- 280MiyoshiHiroshima 10.0
- 280KitahamaShiga 10.0
- 280KawaguchiSaitama 10.0
- 280HirakataOsaka 10.0
- 280MatsushimaMiyagi 10.0
- 280KujiIwate 10.0
- 280YameFukuoka 10.0
- 289TokiGifu 9.9
- 289NanaoIshikawa 9.9
- 289KoshigayaSaitama 9.9
- 289IwadeWakayama 9.9
- 289KakudaMiyagi 9.9
- 289IwakiFukushima 9.9
- 289NiizaSaitama 9.9
- 289HabikinoOsaka 9.9
- 297TokorozawaSaitama 9.8
- 297MieOita 9.8
- 297KasukabeSaitama 9.8
- 297KashiwaraNara 9.8
- 297IwanumaMiyagi 9.8
- 297Aizu-WakamatsuFukushima 9.8
- 297MatsusakaMie 9.8
- 297TōkaiAichi 9.8
- 297MimaTokushima 9.8
- 306TsurugaFukui 9.7
- 306TatebayashiGunma 9.7
- 306TakarazukaHyōgo 9.7
- 306NodaChiba 9.7
- 306NaganoNagano 9.7
- 306KobeHyōgo 9.7
- 306GionHiroshima 9.7
- 306KamisuIbaraki 9.7
- 306MinamiuonumaNiigata 9.7
- 306SaitamaSaitama 9.7
- 306YawatahamaEhime 9.7
- 306ShirakawaFukushima 9.7
- 318YaoOsaka 9.6
- 318TokyoTokyo 9.6
- 318TakayamaGifu 9.6
- 318ObamaFukui 9.6
- 318KawagoeSaitama 9.6
- 318KaminokawaTochigi 9.6
- 318IchinosekiIwate 9.6
- 325AtsugiKanagawa 9.5
- 325UedaNagano 9.5
- 325TakatsukiOsaka 9.5
- 325SabaeFukui 9.5
- 325HachiōjiTokyo 9.5
- 325OyabeToyama 9.5
- 325JōsōIbaraki 9.5
- 325InabeMie 9.5
- 325MineYamaguchi 9.5
- 334SaikiOita 9.4
- 334Ōdachō-ōdaShimane 9.4
- 334InuyamaAichi 9.4
- 334IchinomiyaAichi 9.4
- 334HonjōSaitama 9.4
- 334SayamaSaitama 9.4
- 334HanamakiIwate 9.4
- 334SapporoHokkaido 9.4
- 334TakizawaIwate 9.4
- 334SaikaiNagasaki 9.4
- 344TakinomiyaKagawa 9.3
- 344OkazakiAichi 9.3
- 344NakamuraKochi 9.3
- 344NagoyaAichi 9.3
- 344MakiNiigata 9.3
- 344Kashihara-shiNara 9.3
- 344HōfuYamaguchi 9.3
- 344GōtsuchōShimane 9.3
- 344ChichibuSaitama 9.3
- 344KamaishiIwate 9.3
- 344BandōIbaraki 9.3
- 344MiyakojimaOkinawa 9.3
- 344SennanOsaka 9.3
- 344MinamichitaAichi 9.3
- 358YaitaTochigi 9.2
- 358SekimachiGifu 9.2
- 358Nara-shiNara 9.2
- 358MasudaShimane 9.2
- 358KiryūGunma 9.2
- 358Kamojimachō-jōgejimaTokushima 9.2
- 358HandaAichi 9.2
- 358SendaiMiyagi 9.2
- 358AzaminoKanagawa 9.2
- 358FuchūTokyo 9.2
- 368IzumiOsaka 9.1
- 368IseMie 9.1
- 368HamadaShimane 9.1
- 368GobōWakayama 9.1
- 368ObihiroHokkaido 9.1
- 368ChikumaNagano 9.1
- 368KuwanaMie 9.1
- 375ToyonakaOsaka 9.0
- 375MatsumotoNagano 9.0
- 375FujisawaKanagawa 9.0
- 375ChigasakiKanagawa 9.0
- 375NakaIbaraki 9.0
- 375KitamiHokkaido 9.0
- 375Minami-SōmaFukushima 9.0
- 375ŌshūIwate 9.0
- 375IgaMie 9.0
- 375AmaAichi 9.0
- 375KodairaTokyo 9.0
- 386TsuMie 8.9
- 386TondabayashichōOsaka 8.9
- 386TobaMie 8.9
- 386SaikūMie 8.9
- 386ŌtsukiYamanashi 8.9
- 386KashiwaChiba 8.9
- 386KameyamaMie 8.9
- 386IwataShizuoka 8.9
- 386Kawachi-NaganoOsaka 8.9
- 386SayamaOsaka 8.9
- 386YamatoKanagawa 8.9
- 386FuefukiYamanashi 8.9
- 398ŌtsuShiga 8.8
- 398OnoFukui 8.8
- 398MachidaTokyo 8.8
- 398KochiKochi 8.8
- 398KanumaTochigi 8.8
- 398KamakuraKanagawa 8.8
- 398GifuGifu 8.8
- 398KinokawaWakayama 8.8
- 398YonoOsaka 8.8
- 407YokohamaKanagawa 8.7
- 407ToyohashiAichi 8.7
- 407SuwaNagano 8.7
- 407NiimiOkayama 8.7
- 407KurihamaKanagawa 8.7
- 407IbiGifu 8.7
- 407AiharaKanagawa 8.7
- 407MitoIbaraki 8.7
- 407KasamaIbaraki 8.7
- 407KuriharaMiyagi 8.7
- 407KosaiShizuoka 8.7
- 407NoboritoKanagawa 8.7
- 407HigashikurumeTokyo 8.7
- 420YanaiYamaguchi 8.6
- 420TochigiTochigi 8.6
- 420NonoichiIshikawa 8.6
- 420HiratsukaKanagawa 8.6
- 420HekinanAichi 8.6
- 420FujiShizuoka 8.6
- 420IshiokaIbaraki 8.6
- 420EbinaKanagawa 8.6
- 420TomeMiyagi 8.6
- 429TokushimaTokushima 8.5
- 429ŌmeTokyo 8.5
- 429NumataGunma 8.5
- 429NakanojōGunma 8.5
- 429Kashima-shiIbaraki 8.5
- 429InoKochi 8.5
- 429GotembaShizuoka 8.5
- 429ChiryūAichi 8.5
- 429UwajimaEhime 8.5
- 429WakuyaMiyagi 8.5
- 429MookaTochigi 8.5
- 429HitachiomiyaIbaraki 8.5
- 429KōkaShiga 8.5
- 429NisshinAichi 8.5
- 429AmamiKagoshima 8.5
- 429KamagayaChiba 8.5
- 445OgawamachiSaitama 8.4
- 445NabariMie 8.4
- 445ImaichiTochigi 8.4
- 445TorideIbaraki 8.4
- 445HokotaIbaraki 8.4
- 445YoshinogawaTokushima 8.4
- 445KaminomaAichi 8.4
- 452ShinagawaEhime 8.3
- 452ShimaMie 8.3
- 452KofuYamanashi 8.3
- 452IshigakiOkinawa 8.3
- 452IkomaNara 8.3
- 452HadanoKanagawa 8.3
- 452AkiKochi 8.3
- 452KimitsuChiba 8.3
- 452MiuraKanagawa 8.3
- 452IchiharaChiba 8.3
- 452TomakomaiHokkaido 8.3
- 452MotosuGifu 8.3
- 464ŌgakiGifu 8.2
- 464NumazuShizuoka 8.2
- 464Hitachi-NakaIbaraki 8.2
- 464InashikiIbaraki 8.2
- 464HigashimurayamaTokyo 8.2
- 469GamagōriAichi 8.1
- 469YachimataChiba 8.1
- 469KitaibarakiIbaraki 8.1
- 469SōsaChiba 8.1
- 469NasukarasuyamaTochigi 8.1
- 474OkayaNagano 8.0
- 474IseharaKanagawa 8.0
- 474IidaNagano 8.0
- 474YotsukaidōChiba 8.0
- 474ChibaChiba 8.0
- 474SusonoShizuoka 8.0
- 474FujiyoshidaYamanashi 8.0
- 481ToyotaAichi 7.9
- 481TajimiGifu 7.9
- 481ShizuokaShizuoka 7.9
- 481SakuNagano 7.9
- 481MatsudoChiba 7.9
- 481KisarazuChiba 7.9
- 481AtamiShizuoka 7.9
- 481AnjōAichi 7.9
- 481AkishimaTokyo 7.9
- 481YachiyoChiba 7.9
- 481NarashinoChiba 7.9
- 492ShingūWakayama 7.8
- 492UrayasuChiba 7.8
- 492SusakiKochi 7.8
- 492KogaIbaraki 7.8
- 492SakuraChiba 7.8
- 492HitachiIbaraki 7.8
- 492MinokamoGifu 7.8
- 499SetoAichi 7.7
- 499OdawaraKanagawa 7.7
- 499FujiedaShizuoka 7.7
- 502InzaiChiba 7.6
- 503UenoharaYamanashi 7.5
- 503KakegawaShizuoka 7.5
- 505FujinomiyaShizuoka 7.4
- 505NaritaChiba 7.4
- 505NankokuKochi 7.4
- 508HamamatsuShizuoka 7.3
- 508KikugawaShizuoka 7.3
- 510ShinshiroAichi 7.2
- 510ŌharaChiba 7.2
- 510ŌamiChiba 7.2
- 510KushiroHokkaido 7.2
- 510MinamiashigaraKanagawa 7.2
- 510IzunokuniShizuoka 7.2
- 510Minami-AlpsYamanashi 7.2
- 517YokosukaKanagawa 7.1
- 517ShimodaShizuoka 7.1
- 517SawaraChiba 7.1
- 517MobaraChiba 7.1
- 517AjikiChiba 7.1
- 517MinamibōsōChiba 7.1
- 523InaNagano 7.0
- 523YokoshibaChiba 7.0
- 523TōganeChiba 7.0
- 526ShimadaShizuoka 6.9
- 526SodegauraChiba 6.9
- 528TateyamaChiba 6.8
- 528OmigawaChiba 6.8
- 530HamakitaShizuoka 6.7
- 531KumanoMie 6.4
- 532KatsuuraChiba 6.3
- 532KaizuGifu 6.3
- 534GeroGifu 6.1
- 535NamerikawaToyama 5.9
- 536OwaseMie 5.5
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
All cities in the world, March 2026 · Japan now
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