SmogRank / Countries / Japan / April 2026

Most polluted cities in Japan, April 2026

545 cities in Japan ranked by their average PM2.5 over the 30 days. Worst: Onomichi at 13.6 µg/m³, #342 of 2,283 cities in the world. Cleanest: Namerikawa at 5.3. A city needs measurements on 70% of the days to be ranked.

  1. 1OnomichiHiroshima
    13.6
  2. 2SaijōEhime
    13.4
  3. 3NiihamaEhime
    13.3
  4. 4FukuyamaHiroshima
    13.2
  5. 5ShikokuchūōEhime
    13.1
  6. 6Shin’ichiHiroshima
    13.0
  7. 7Maebaru-chūōFukuoka
    12.8
  8. 8OnodaYamaguchi
    12.7
  9. 9HitaOita
    12.6
  10. 10IshinomakiMiyagi
    12.4
  11. 11YawataKyoto
    12.2
  12. 11TsuchiuraIbaraki
    12.2
  13. 13OwariasahiAichi
    12.0
  14. 14ImabariEhime
    11.8
  15. 14MiyakoIwate
    11.8
  16. 16FukuokaFukuoka
    11.7
  17. 16KogaFukuoka
    11.7
  18. 18TaharaAichi
    11.6
  19. 18KitakyushuFukuoka
    11.6
  20. 18HigashihiroshimaHiroshima
    11.6
  21. 21KureHiroshima
    11.4
  22. 21Kan’onjichōKagawa
    11.4
  23. 21ChikugoFukuoka
    11.4
  24. 24TamanoOkayama
    11.3
  25. 24ŌmutaFukuoka
    11.3
  26. 24KurashikiOkayama
    11.3
  27. 24Kodamachō-kodamaminamiSaitama
    11.3
  28. 28NyūzenToyama
    11.2
  29. 28Hondomachi-hondoKumamoto
    11.2
  30. 28HigashiosakaOsaka
    11.2
  31. 28BeppuOita
    11.2
  32. 28KamisuIbaraki
    11.2
  33. 28BizenOkayama
    11.2
  34. 34TanabeWakayama
    11.0
  35. 34AsakuchiOkayama
    11.0
  36. 36YoriiSaitama
    10.9
  37. 36YokkaichiMie
    10.9
  38. 36Kakogawachō-honmachiHyōgo
    10.9
  39. 36IgusaSaitama
    10.9
  40. 36GyōdaSaitama
    10.9
  41. 41MinamirinkanKanagawa
    10.8
  42. 41MinawaKanagawa
    10.8
  43. 41AsakaSaitama
    10.8
  44. 44UbeYamaguchi
    10.7
  45. 44TakamatsuKagawa
    10.7
  46. 44SusakiKochi
    10.7
  47. 44Sakai-nakajimaGunma
    10.7
  48. 44MenumaSaitama
    10.7
  49. 44InuyamaAichi
    10.7
  50. 44HekinanAichi
    10.7
  51. 44AmagasakiHyōgo
    10.7
  52. 44MatsuyamaEhime
    10.7
  53. 44JōetsuNiigata
    10.7
  54. 54TokonameAichi
    10.6
  55. 54TenriNara
    10.6
  56. 54SaseboNagasaki
    10.6
  57. 54SakadoSaitama
    10.6
  58. 54KandaFukuoka
    10.6
  59. 54Imarichō-kōSaga
    10.6
  60. 54Higashi-MatsuyamaSaitama
    10.6
  61. 54TakuSaga
    10.6
  62. 62Tanushimarumachi-toyokiFukuoka
    10.5
  63. 62SōkaSaitama
    10.5
  64. 62SōjaOkayama
    10.5
  65. 62ŌtakeHiroshima
    10.5
  66. 62HigashinozoeHyōgo
    10.5
  67. 62MiharaHiroshima
    10.5
  68. 62KumagayaSaitama
    10.5
  69. 62KasaokaOkayama
    10.5
  70. 62HiroshimaHiroshima
    10.5
  71. 62AgeoSaitama
    10.5
  72. 62IwanumaMiyagi
    10.5
  73. 62IrumaSaitama
    10.5
  74. 74YokotaTokyo
    10.4
  75. 74TokiGifu
    10.4
  76. 74TakeoSaga
    10.4
  77. 74MinatoWakayama
    10.4
  78. 74OyamaTochigi
    10.4
  79. 74MorohongōSaitama
    10.4
  80. 74MarugameKagawa
    10.4
  81. 74KukichūōSaitama
    10.4
  82. 74IwakuniYamaguchi
    10.4
  83. 74IyoEhime
    10.4
  84. 74ShiroishiMiyagi
    10.4
  85. 74KaniGifu
    10.4
  86. 74ItoshimaFukuoka
    10.4
  87. 87TomiokaGunma
    10.3
  88. 87ShimonosekiYamaguchi
    10.3
  89. 87ShibataNiigata
    10.3
  90. 87SekimachiGifu
    10.3
  91. 87OsakaOsaka
    10.3
  92. 87KariyaAichi
    10.3
  93. 87KaratsuSaga
    10.3
  94. 87HannōSaitama
    10.3
  95. 87HikariYamaguchi
    10.3
  96. 87MoriokaIwate
    10.3
  97. 87ŌdateAkita
    10.3
  98. 87HigashigōSaga
    10.3
  99. 99ShingūWakayama
    10.2
  100. 99TakeharaHiroshima
    10.2
  101. 99KōnosuSaitama
    10.2
  102. 99HanyūSaitama
    10.2
  103. 99HagiYamaguchi
    10.2
  104. 99FujiShizuoka
    10.2
  105. 105ZentsujichóKagawa
    10.1
  106. 105TsuyamaOkayama
    10.1
  107. 105NishiwakiHyōgo
    10.1
  108. 105KyotoKyoto
    10.1
  109. 105KurayoshiTottori
    10.1
  110. 105KogaFukuoka
    10.1
  111. 105KazoSaitama
    10.1
  112. 105KawaguchiSaitama
    10.1
  113. 105KainanWakayama
    10.1
  114. 105HijiOita
    10.1
  115. 105NiizaSaitama
    10.1
  116. 105HyūgaMiyazaki
    10.1
  117. 117Tottori-shiTottori
    10.0
  118. 117TokorozawaSaitama
    10.0
  119. 117TogitsuNagasaki
    10.0
  120. 117TakaokaToyama
    10.0
  121. 117SumotoHyōgo
    10.0
  122. 117ShidoKagawa
    10.0
  123. 117SakaiOsaka
    10.0
  124. 117KudamatsuYamaguchi
    10.0
  125. 117KishiwadaOsaka
    10.0
  126. 117IwadeWakayama
    10.0
  127. 117IizukaFukuoka
    10.0
  128. 117HōryūjiNara
    10.0
  129. 117HachiōjiTokyo
    10.0
  130. 117ChichibuSaitama
    10.0
  131. 117SayamaSaitama
    10.0
  132. 117Natori-shiMiyagi
    10.0
  133. 117NoshiroAkita
    10.0
  134. 117TakashimaShiga
    10.0
  135. 117Misato, SaitamaSaitama
    10.0
  136. 117NantanKyoto
    10.0
  137. 137ShibukawaGunma
    9.9
  138. 137Ōyanomachi-noboritateKumamoto
    9.9
  139. 137KurihamaKanagawa
    9.9
  140. 137KumamotoKumamoto
    9.9
  141. 137KoshigayaSaitama
    9.9
  142. 137IkedachōTokushima
    9.9
  143. 137HimimachiToyama
    9.9
  144. 137AnanTokushima
    9.9
  145. 137ImizuToyama
    9.9
  146. 137MinamichitaAichi
    9.9
  147. 137MatsusakaMie
    9.9
  148. 137MunakataFukuoka
    9.9
  149. 137TōkaiAichi
    9.9
  150. 150YukuhashiFukuoka
    9.8
  151. 150Uekimachi-mōnoKumamoto
    9.8
  152. 150ŌtaGunma
    9.8
  153. 150Kashima-shiIbaraki
    9.8
  154. 150NagatoYamaguchi
    9.8
  155. 150ChikuseiIbaraki
    9.8
  156. 150OgaAkita
    9.8
  157. 157TokyoTokyo
    9.7
  158. 157TatebayashiGunma
    9.7
  159. 157SagaSaga
    9.7
  160. 157NumazuShizuoka
    9.7
  161. 157NishinomiyaHyōgo
    9.7
  162. 157KasukabeSaitama
    9.7
  163. 157KashimaSaga
    9.7
  164. 157IseMie
    9.7
  165. 157Fukui-shiFukui
    9.7
  166. 157YoshiokaMiyagi
    9.7
  167. 157AkitaAkita
    9.7
  168. 157SugaiKyoto
    9.7
  169. 157KotōKumamoto
    9.7
  170. 157ShūnanYamaguchi
    9.7
  171. 171SuzukaMie
    9.6
  172. 171ShimaMie
    9.6
  173. 171OnoHyōgo
    9.6
  174. 171KofuYamanashi
    9.6
  175. 171KashiwaraNara
    9.6
  176. 171Kanzakimachi-kanzakiSaga
    9.6
  177. 171KagoshimaKagoshima
    9.6
  178. 171IzumisanoOsaka
    9.6
  179. 171HonjōSaitama
    9.6
  180. 171FujisawaKanagawa
    9.6
  181. 171MuroranHokkaido
    9.6
  182. 171HirosakiAomori
    9.6
  183. 171HigashimatsushimaMiyagi
    9.6
  184. 171YurihonjōAkita
    9.6
  185. 185TsurusakiOita
    9.5
  186. 185ToyookaHyōgo
    9.5
  187. 185TakatsukiOsaka
    9.5
  188. 185TagawaFukuoka
    9.5
  189. 185OkazakiAichi
    9.5
  190. 185KanoyaKagoshima
    9.5
  191. 185Tagajō-shiMiyagi
    9.5
  192. 185IwakiFukushima
    9.5
  193. 185MatsuuraNagasaki
    9.5
  194. 185HashimaGifu
    9.5
  195. 185SaitamaSaitama
    9.5
  196. 185KodairaTokyo
    9.5
  197. 197AtsugiKanagawa
    9.4
  198. 197AkashiHyōgo
    9.4
  199. 197YokohamaKanagawa
    9.4
  200. 197Ueno-ebisumachiMie
    9.4
  201. 197TosuSaga
    9.4
  202. 197TobaMie
    9.4
  203. 197TakanabeMiyazaki
    9.4
  204. 197Shimo-tsumaIbaraki
    9.4
  205. 197OkayamaOkayama
    9.4
  206. 197NōgataFukuoka
    9.4
  207. 197NishioAichi
    9.4
  208. 197NagoyaAichi
    9.4
  209. 197KameokaKyoto
    9.4
  210. 197IshigakiOkinawa
    9.4
  211. 197GamagōriAichi
    9.4
  212. 197ChigasakiKanagawa
    9.4
  213. 197AyabeKyoto
    9.4
  214. 197KariyaHyōgo
    9.4
  215. 197NakaIbaraki
    9.4
  216. 197KakudaMiyagi
    9.4
  217. 197TsushimaNagasaki
    9.4
  218. 218YonagoTottori
    9.3
  219. 218Ureshinomachi-shimojukuSaga
    9.3
  220. 218TamanaKumamoto
    9.3
  221. 218MifuneKumamoto
    9.3
  222. 218KiryūGunma
    9.3
  223. 218KamakuraKanagawa
    9.3
  224. 218HandaAichi
    9.3
  225. 218AioiHyōgo
    9.3
  226. 218AiharaKanagawa
    9.3
  227. 218GotōNagasaki
    9.3
  228. 228YamaguchiYamaguchi
    9.2
  229. 228YaeHiroshima
    9.2
  230. 228UjiKyoto
    9.2
  231. 228TsuMie
    9.2
  232. 228ToyohashiAichi
    9.2
  233. 228SanoTochigi
    9.2
  234. 228SaikūMie
    9.2
  235. 228Narutochō-mitsuishiTokushima
    9.2
  236. 228NagahamaShiga
    9.2
  237. 228MaizuruKyoto
    9.2
  238. 228KōtariKyoto
    9.2
  239. 228IzumoShimane
    9.2
  240. 228IchinomiyaAichi
    9.2
  241. 228HimejiHyōgo
    9.2
  242. 228HashimotoWakayama
    9.2
  243. 228FukuroiShizuoka
    9.2
  244. 228FukuchiyamaKyoto
    9.2
  245. 228KosaiShizuoka
    9.2
  246. 228SadoNiigata
    9.2
  247. 228WakasugiFukuoka
    9.2
  248. 228YamatoKanagawa
    9.2
  249. 249UtsunomiyaTochigi
    9.1
  250. 249SandachōHyōgo
    9.1
  251. 249ŌitaOita
    9.1
  252. 249NichinanMiyazaki
    9.1
  253. 249NakamaFukuoka
    9.1
  254. 249NagaokaNiigata
    9.1
  255. 249MatsutōIshikawa
    9.1
  256. 249MachidaTokyo
    9.1
  257. 249KushikinoKagoshima
    9.1
  258. 249KikuchiKumamoto
    9.1
  259. 249IzumiKagoshima
    9.1
  260. 249AshikagaTochigi
    9.1
  261. 249SagaeYamagata
    9.1
  262. 249MatsushimaMiyagi
    9.1
  263. 249KesennumaMiyagi
    9.1
  264. 249ChibaChiba
    9.1
  265. 249YachiyoChiba
    9.1
  266. 249SusonoShizuoka
    9.1
  267. 249HiragiKagawa
    9.1
  268. 249AzaminoKanagawa
    9.1
  269. 249AraoKumamoto
    9.1
  270. 249OgōriFukuoka
    9.1
  271. 249HigashikurumeTokyo
    9.1
  272. 249FuchūTokyo
    9.1
  273. 249IkiNagasaki
    9.1
  274. 274YasugichōShimane
    9.0
  275. 274UtoKumamoto
    9.0
  276. 274TakayamaGifu
    9.0
  277. 274ShizuokaShizuoka
    9.0
  278. 274ShinshiroAichi
    9.0
  279. 274ŌmeTokyo
    9.0
  280. 274KochiKochi
    9.0
  281. 274KobeHyōgo
    9.0
  282. 274KawagoeSaitama
    9.0
  283. 274KaminokawaTochigi
    9.0
  284. 274HirakataOsaka
    9.0
  285. 274GionHiroshima
    9.0
  286. 274ChitoseHokkaido
    9.0
  287. 274BandōIbaraki
    9.0
  288. 274KagaIshikawa
    9.0
  289. 274InabeMie
    9.0
  290. 274KikugawaShizuoka
    9.0
  291. 274KuwanaMie
    9.0
  292. 274JōyōKyoto
    9.0
  293. 274TatsunoHyōgo
    9.0
  294. 294YoukaichiShiga
    8.9
  295. 294HonmachiKumamoto
    8.9
  296. 294UrayasuChiba
    8.9
  297. 294TsubataIshikawa
    8.9
  298. 294TakahashiOkayama
    8.9
  299. 294SuzakaNagano
    8.9
  300. 294NodaChiba
    8.9
  301. 294MiyakonojōMiyazaki
    8.9
  302. 294MikuniFukui
    8.9
  303. 294KashiwaChiba
    8.9
  304. 294ItoigawaNiigata
    8.9
  305. 294IseharaKanagawa
    8.9
  306. 294IkarugaHyōgo
    8.9
  307. 294HikoneShiga
    8.9
  308. 294GobōWakayama
    8.9
  309. 294AtamiShizuoka
    8.9
  310. 294KimitsuChiba
    8.9
  311. 294SōmaFukushima
    8.9
  312. 294ŌsakiMiyagi
    8.9
  313. 294MizuhoGifu
    8.9
  314. 294UnnanShimane
    8.9
  315. 315ToyamaToyama
    8.8
  316. 315TakarazukaHyōgo
    8.8
  317. 315SendaiKagoshima
    8.8
  318. 315SakataYamagata
    8.8
  319. 315SakaiminatoTottori
    8.8
  320. 315NakanojōGunma
    8.8
  321. 315KusatsuShiga
    8.8
  322. 315IwataShizuoka
    8.8
  323. 315HiratsukaKanagawa
    8.8
  324. 315HadanoKanagawa
    8.8
  325. 315YokoteAkita
    8.8
  326. 315IchiharaChiba
    8.8
  327. 315AomoriAomori
    8.8
  328. 315SōsaChiba
    8.8
  329. 315Kawachi-NaganoOsaka
    8.8
  330. 315HigashimurayamaTokyo
    8.8
  331. 315AmamiKagoshima
    8.8
  332. 315NoboritoKanagawa
    8.8
  333. 315KizugawaKyoto
    8.8
  334. 315AmaAichi
    8.8
  335. 315MineYamaguchi
    8.8
  336. 315MimaTokushima
    8.8
  337. 315FuefukiYamanashi
    8.8
  338. 338YaoOsaka
    8.7
  339. 338YanaiYamaguchi
    8.7
  340. 338UedaNagano
    8.7
  341. 338ObitaNagasaki
    8.7
  342. 338NobeokaMiyazaki
    8.7
  343. 338MatsueShimane
    8.7
  344. 338KameyamaMie
    8.7
  345. 338KakegawaShizuoka
    8.7
  346. 338IzumiOsaka
    8.7
  347. 338HakuiIshikawa
    8.7
  348. 338GotembaShizuoka
    8.7
  349. 338GifuGifu
    8.7
  350. 338SendaiMiyagi
    8.7
  351. 338MiyakojimaOkinawa
    8.7
  352. 338KinokawaWakayama
    8.7
  353. 338KumanoMie
    8.7
  354. 338MotosuGifu
    8.7
  355. 355UozuToyama
    8.6
  356. 355ShimodaShizuoka
    8.6
  357. 355OgawamachiSaitama
    8.6
  358. 355ObamaFukui
    8.6
  359. 355NumataGunma
    8.6
  360. 355MiyazuKyoto
    8.6
  361. 355Kaseda-shirakameKagoshima
    8.6
  362. 355Kameda-honchōNiigata
    8.6
  363. 355IsahayaNagasaki
    8.6
  364. 355HōfuYamaguchi
    8.6
  365. 355HamamatsuShizuoka
    8.6
  366. 355ChiryūAichi
    8.6
  367. 355MiuraKanagawa
    8.6
  368. 355SakuraChiba
    8.6
  369. 355HachinoheAomori
    8.6
  370. 355EbinaKanagawa
    8.6
  371. 355Minami-SōmaFukushima
    8.6
  372. 355JōsōIbaraki
    8.6
  373. 355HabikinoOsaka
    8.6
  374. 355SennanOsaka
    8.6
  375. 355YamanashiYamanashi
    8.6
  376. 355KamagayaChiba
    8.6
  377. 377ŌzuKumamoto
    8.5
  378. 377ŌmuraNagasaki
    8.5
  379. 377Ōdachō-ōdaShimane
    8.5
  380. 377Nara-shiNara
    8.5
  381. 377MiyoshiHiroshima
    8.5
  382. 377MasudaShimane
    8.5
  383. 377Kashihara-shiNara
    8.5
  384. 377KanumaTochigi
    8.5
  385. 377FujinomiyaShizuoka
    8.5
  386. 377KōriyamaFukushima
    8.5
  387. 377KamaishiIwate
    8.5
  388. 377HokotaIbaraki
    8.5
  389. 377AkishimaTokyo
    8.5
  390. 377KasugaFukuoka
    8.5
  391. 377UkihaFukuoka
    8.5
  392. 377MinamikyushuKagoshima
    8.5
  393. 377KaminomaAichi
    8.5
  394. 394ToyotaAichi
    8.4
  395. 394TondabayashichōOsaka
    8.4
  396. 394ShimadaShizuoka
    8.4
  397. 394SetoAichi
    8.4
  398. 394SabaeFukui
    8.4
  399. 394OdawaraKanagawa
    8.4
  400. 394NiigataNiigata
    8.4
  401. 394NanaoIshikawa
    8.4
  402. 394NakatsuOita
    8.4
  403. 394MatsudoChiba
    8.4
  404. 394KisarazuChiba
    8.4
  405. 394GōtsuchōShimane
    8.4
  406. 394YachimataChiba
    8.4
  407. 394WakuyaMiyagi
    8.4
  408. 394InashikiIbaraki
    8.4
  409. 394BuzenFukuoka
    8.4
  410. 394ShonaiYamagata
    8.4
  411. 394NarashinoChiba
    8.4
  412. 394MinamibōsōChiba
    8.4
  413. 413TsuruokaYamagata
    8.3
  414. 413TsukumiuraOita
    8.3
  415. 413TateyamaChiba
    8.3
  416. 413NakamuraKochi
    8.3
  417. 413KanazawaIshikawa
    8.3
  418. 413FujiedaShizuoka
    8.3
  419. 413ŌharaChiba
    8.3
  420. 413NagaiYamagata
    8.3
  421. 413HakodateHokkaido
    8.3
  422. 413InzaiChiba
    8.3
  423. 413YawatahamaEhime
    8.3
  424. 413FujiyoshidaYamanashi
    8.3
  425. 413Minami-AlpsYamanashi
    8.3
  426. 413IgaMie
    8.3
  427. 427YaitaTochigi
    8.2
  428. 427ToyonakaOsaka
    8.2
  429. 427ShironeNiigata
    8.2
  430. 427ŌtsukiYamanashi
    8.2
  431. 427NagasakiNagasaki
    8.2
  432. 427MinamataKumamoto
    8.2
  433. 427KomatsuIshikawa
    8.2
  434. 427ImaichiTochigi
    8.2
  435. 427HamadaShimane
    8.2
  436. 427AnjōAichi
    8.2
  437. 427AkiKochi
    8.2
  438. 427YonezawaYamagata
    8.2
  439. 427NaritaChiba
    8.2
  440. 427MitoIbaraki
    8.2
  441. 427KasamaIbaraki
    8.2
  442. 427NisshinAichi
    8.2
  443. 443TsurugaFukui
    8.1
  444. 443SuwaNagano
    8.1
  445. 443NabariMie
    8.1
  446. 443ŌmihachimanShiga
    8.1
  447. 443YotsukaidōChiba
    8.1
  448. 443YamagataYamagata
    8.1
  449. 443TorideIbaraki
    8.1
  450. 443MobaraChiba
    8.1
  451. 443MinokamoGifu
    8.1
  452. 443KirishimaKagoshima
    8.1
  453. 443AyaseKanagawa
    8.1
  454. 443KyōtangoKyoto
    8.1
  455. 443SaikaiNagasaki
    8.1
  456. 456TajimiGifu
    8.0
  457. 456NagoOkinawa
    8.0
  458. 456KakamigaharaGifu
    8.0
  459. 456IkomaNara
    8.0
  460. 456IidaNagano
    8.0
  461. 456IbiGifu
    8.0
  462. 456HamakitaShizuoka
    8.0
  463. 456KitaibarakiIbaraki
    8.0
  464. 456IshiokaIbaraki
    8.0
  465. 456IchinosekiIwate
    8.0
  466. 456HitachiomiyaIbaraki
    8.0
  467. 456TonamiToyama
    8.0
  468. 468ŌtsuShiga
    7.9
  469. 468NahaOkinawa
    7.9
  470. 468KitahamaShiga
    7.9
  471. 468ShinjōYamagata
    7.9
  472. 468Hitachi-NakaIbaraki
    7.9
  473. 468SayamaOsaka
    7.9
  474. 468YameFukuoka
    7.9
  475. 475TokushimaTokushima
    7.8
  476. 475ŌgakiGifu
    7.8
  477. 475NaganoNagano
    7.8
  478. 475SawaraChiba
    7.8
  479. 475ShirakawaFukushima
    7.8
  480. 480YanagawaFukuoka
    7.7
  481. 480Niitsu-honchōNiigata
    7.7
  482. 480MiyazakiMiyazaki
    7.7
  483. 480KobayashiMiyazaki
    7.7
  484. 480YokoshibaChiba
    7.7
  485. 480MookaTochigi
    7.7
  486. 480HitachiIbaraki
    7.7
  487. 480HigashineYamagata
    7.7
  488. 480KujiIwate
    7.7
  489. 480ShintomiMiyazaki
    7.7
  490. 480MinamiashigaraKanagawa
    7.7
  491. 491SaikiOita
    7.6
  492. 491OnoFukui
    7.6
  493. 491MieOita
    7.6
  494. 491MatsumotoNagano
    7.6
  495. 491Kamojimachō-jōgejimaTokushima
    7.6
  496. 491InoKochi
    7.6
  497. 491AnamizuIshikawa
    7.6
  498. 491UwajimaEhime
    7.6
  499. 491YonoOsaka
    7.6
  500. 500YokosukaKanagawa
    7.5
  501. 500NiimiOkayama
    7.5
  502. 500OmigawaChiba
    7.5
  503. 500KatsuuraChiba
    7.5
  504. 500AjikiChiba
    7.5
  505. 500IzunokuniShizuoka
    7.5
  506. 506UenoharaYamanashi
    7.4
  507. 506SakuNagano
    7.4
  508. 506OwaseMie
    7.4
  509. 506MakiNiigata
    7.4
  510. 506OkinawaOkinawa
    7.4
  511. 506MinamiuonumaNiigata
    7.4
  512. 506YoshinogawaTokushima
    7.4
  513. 513HitoyoshiKumamoto
    7.3
  514. 513ŌamiChiba
    7.3
  515. 513TomeMiyagi
    7.3
  516. 513SodegauraChiba
    7.3
  517. 517TakinomiyaKagawa
    7.2
  518. 517TomakomaiHokkaido
    7.2
  519. 517Aizu-WakamatsuFukushima
    7.2
  520. 517KuriharaMiyagi
    7.2
  521. 521OkayaNagano
    7.1
  522. 521ChikumaNagano
    7.1
  523. 523TochigiTochigi
    7.0
  524. 523TōganeChiba
    7.0
  525. 523HanamakiIwate
    7.0
  526. 523ŌshūIwate
    7.0
  527. 527SapporoHokkaido
    6.9
  528. 527NasukarasuyamaTochigi
    6.9
  529. 527TakizawaIwate
    6.9
  530. 527NankokuKochi
    6.9
  531. 531KogaIbaraki
    6.8
  532. 531InaNagano
    6.8
  533. 531KōkaShiga
    6.8
  534. 531OyabeToyama
    6.8
  535. 535NonoichiIshikawa
    6.6
  536. 535AsoKumamoto
    6.6
  537. 537ShinagawaEhime
    6.4
  538. 537KushiroHokkaido
    6.4
  539. 537AsahikawaHokkaido
    6.4
  540. 540KitamiHokkaido
    6.2
  541. 540NasushiobaraTochigi
    6.2
  542. 542ObihiroHokkaido
    6.1
  543. 542KaizuGifu
    6.1
  544. 544GeroGifu
    6.0
  545. 545NamerikawaToyama
    5.3
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, April 2026 · Japan now