SmogRank / Rankings

All 2,516 cities by PM2.5, last 24 hours

Every city with enough measurements in this window, worst first.

CPCB in India: no readings since 7 Oct (488 monitors). EEA in Spain: no readings since 10 Oct (310 monitors). Catalonia Medi Ambient I Sostenibilitat in Spain: no readings since 9 Oct (26 monitors). Their cities are missing from this board, not clean.

  1. 988BloomingtonIndiana, United States 420.5×▲312
  2. 988NicholasvilleKentucky, United States 420.5×▲798
  3. 988WavelandMississippi, United States 420.5×▲377
  4. 988TaylorMichigan, United States 420.5×▲759
  5. 988Saint CloudMinnesota, United States 420.5×▼539
  6. 988Port AlberniBritish Columbia, Canada 420.5×▲141
  7. 988Barra da TijucaRio de Janeiro, Brazil 420.5×▼843
  8. 1008T’aebaekGangwon-do, South Korea 420.5×▼669
  9. 1008HimejiHyōgo, Japan 420.5×▼171
  10. 1008EnschedeOverijssel, The Netherlands 420.5×▲868
  11. 1008GardanneProvence-Alpes-Côte d'Azur, France 420.5×▲305
  12. 1008StudénkaMoravian-Silesian Region, Czechia 420.5×▼104
  13. 1008JihlavaVysocina, Czechia 420.5×▲443
  14. 1008CieszynSilesia, Poland 420.5×▲238
  15. 1008CasertaCampania, Italy 420.5×▼123
  16. 1008PaarlWestern Cape, South Africa 420.5×▼751
  17. 1008MissionTexas, United States 420.5×▲243
  18. 1008KokomoIndiana, United States 420.5×▲205
  19. 1008HudsonvilleMichigan, United States 420.5×▲274
  20. 1008New BaltimoreMichigan, United States 420.5×▲815
  21. 1008King CityCalifornia, United States 420.5×▼206
  22. 1008South Lake TahoeCalifornia, United States 420.5×▲401
  23. 1008MississaugaOntario, Canada 420.5×▲550
  24. 1008QuesnelBritish Columbia, Canada 420.5×▼582
  25. 1025KobeHyōgo, Japan 410.5×▼352
  26. 1025EmeraldQueensland, Australia 410.5×▼2
  27. 1025BlackwaterQueensland, Australia 410.5×▼326
  28. 1025BradfordEngland, United Kingdom 410.5×▼488
  29. 1025Arnhemlow-cost sensorsGelderland, The Netherlands 410.5×
  30. 1025Hanau am MainHesse, Germany 410.5×▲890
  31. 1025BordeauxNew Aquitaine, France 410.5×▼15
  32. 1025SorocabaSão Paulo, Brazil 410.5×▼112
  33. 1025Kendale LakesFlorida, United States 410.5×▲92
  34. 1025BrunswickGeorgia, United States 410.5×▲223
  35. 1025St. LouisMissouri, United States 410.5×▼470
  36. 1025BraidwoodIllinois, United States 410.5×▲301
  37. 1025LafayetteIndiana, United States 410.5×▲112
  38. 1025EastpointeMichigan, United States 410.5×▲941
  39. 1025YpsilantiMichigan, United States 410.5×▲379
  40. 1025BeatriceNebraska, United States 410.5×▼242
  41. 1025SocorroTexas, United States 410.5×▲52
  42. 1025KitimatBritish Columbia, Canada 410.5×▲119
  43. 1025St. ThomasOntario, Canada 410.5×▲773
  44. 1044GrevenáWest Macedonia, Greece 410.5×▲20
  45. 1044JangseongJeollanam-do, South Korea 410.5×▼817
  46. 1044NishinomiyaHyōgo, Japan 410.5×▼400
  47. 1044Limburg an der LahnHesse, Germany 410.5×▲905
  48. 1044ZvolenBanská Bystrica Region, Slovakia 410.5×▲228
  49. 1044Liptovský Mikulᚎilina Region, Slovakia 410.5×▲40
  50. 1044České BudějoviceSouth Bohemian Region, Czechia 410.5×▲59
  51. 1044KrakówLesser Poland, Poland 410.5×▲229
  52. 1044GadsdenAlabama, United States 410.5×
  53. 1044Safety HarborFlorida, United States 410.5×▲439
  54. 1044WichitaKansas, United States 410.5×▼581
  55. 1044Tularelow-cost sensorsCalifornia, United States 410.5×
  56. 1044Apache JunctionArizona, United States 410.5×▼42
  57. 1044Crescent CityCalifornia, United States 410.5×▼107
  58. 1044WindsorOntario, Canada 410.5×▲859
  59. 1044Candler-McAfeeGeorgia, United States 410.5×▲453
  60. 1060LegionowoMazovia, Poland 400.5×▼325
  61. 1060KimhaeGyeongsangnam-do, South Korea 400.5×▼363
  62. 1060New LambtonNew South Wales, Australia 400.5×▼179
  63. 1060Rotenburglow-cost sensorsLower Saxony, Germany 400.5×
  64. 1060RitterhudeLower Saxony, Germany 400.5×▲1098
  65. 1060OytenLower Saxony, Germany 400.5×▲1199
  66. 1060BremerhavenBremen, Germany 400.5×▲1099
  67. 1060ThionvilleGrand Est, France 400.5×▲233
  68. 1060MarmandeNew Aquitaine, France 400.5×▲165
  69. 1060PécsBaranya, Hungary 400.5×▲284
  70. 1060PrievidzaTrenčín Region, Slovakia 400.5×▲74
  71. 1060Rio de JaneiroRio de Janeiro, Brazil 400.5×▼722
  72. 1060JacksonvilleFlorida, United States 400.5×▲128
  73. 1060Winter ParkFlorida, United States 400.5×▲304
  74. 1060Saint JosephMissouri, United States 400.5×▼394
  75. 1060TulsaOklahoma, United States 400.5×▼686
  76. 1060OceansideCalifornia, United States 400.5×▼485
  77. 1060Rancho MurietaCalifornia, United States 400.5×▼140
  78. 1060RosevilleCalifornia, United States 400.5×▼74
  79. 1060PortlandOregon, United States 400.5×▲82
  80. 1060LemwerderLower Saxony, Germany 400.5×▲1117
  81. 1081CiechanówMazovia, Poland 390.5×▼359
  82. 1081Kemerovolow-cost sensorsKuzbass, Russia 390.5×
  83. 1081UjiKyoto, Japan 390.5×
  84. 1081ScunthorpeEngland, United Kingdom 390.5×▼199
  85. 1081Didamlow-cost sensorsGelderland, The Netherlands 390.5×
  86. 1081MulhouseGrand Est, France 390.5×▲366
  87. 1081BelfortBourgogne-Franche-Comté, France 390.5×▼90
  88. 1081PraguePrague, Czechia 390.5×▲500
  89. 1081KarvináMoravian-Silesian Region, Czechia 390.5×▲266
  90. 1081OmegnaPiedmont, Italy 390.5×▲85
  91. 1081CampinasSão Paulo, Brazil 390.5×▼167
  92. 1081TampaFlorida, United States 390.5×▲585
  93. 1081AtlantaGeorgia, United States 390.5×▲663
  94. 1081Highland HeightsKentucky, United States 390.5×▲405
  95. 1081HammondIndiana, United States 390.5×▼65
  96. 1081SebastopolCalifornia, United States 390.5×▼21
  97. 1081StocktonCalifornia, United States 390.5×▼81
  98. 1081Thousand OaksCalifornia, United States 390.5×▼525
  99. 1081ScottsbluffNebraska, United States 390.5×▲97
  100. 1081RentonWashington, United States 390.5×▲382

Low-cost sensors: consumer units, counted only in cities with no government-grade monitor; they read close to reference monitors on the whole, but 15 to 25% high in humid air. How we use them.

Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Not covered: the government monitoring networks of China and Turkey, which publish only on their own websites. We are building the reader for China's network. Turkey's network doesn't answer requests from outside the country, so we can't read it. Most cities there are missing from this board, not clean. Why.

Use this board

SmogRank, all cities ranked by mean PM2.5 (µg/m³), last 24 hours to 13 Oct 2026, 02:00 UTC: each city's mean of its hourly values, cities measured in 18 or more of the 24 hours. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings. Ranked on low-cost sensors, with no reference monitor in the city: #1 Queenstown Estate, #3 Gaur, Madhesh, #4 Dubai, #6 Dhaka, #7 Multan, #8 Gujranwala, #9 Faisalabad and #10 Lahore. Some values from Sensor.Community, ODbL. Some readings from Uzhydromet (Uzbekistan's Hydrometeorological Service); Vietnam's government monitors; Department of Environment, Nepal; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland); Love My Air (City and County of Denver), no reuse terms published.

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Updated 2026-10-13 02:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Vietnam's government monitors; Department of Environment, Nepal; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland); Love My Air (City and County of Denver), no reuse terms published (why we use them).