SmogRank / Rankings

All 2,540 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. 1186ArnoldMissouri, United States 370.4×▼181
  2. 1186Oklahoma CityOklahoma, United States 370.4×▼616
  3. 1186DyersburgTennessee, United States 370.4×▲269
  4. 1186ComptonCalifornia, United States 370.4×▼505
  5. 1186GreshamOregon, United States 370.4×▼234
  6. 1186AmamiKagoshima, Japan 370.4×▲373
  7. 1186NantanKyoto, Japan 370.4×▼324
  8. 1208Nakhabinolow-cost sensorsMoscow Oblast, Russia 360.4×
  9. 1208SofiaSofia-Capital, Bulgaria 360.4×▼212
  10. 1208Thornaby-on-TeesEngland, United Kingdom 360.4×▼151
  11. 1208Edelow-cost sensorsGelderland, The Netherlands 360.4×
  12. 1208Doetinchemlow-cost sensorsGelderland, The Netherlands 360.4×
  13. 1208LuxembourgLuxembourg, Luxembourg 360.4×▲110
  14. 1208NancyGrand Est, France 360.4×▲139
  15. 1208Ústí nad LabemÚstí nad Labem Region, Czechia 360.4×▲52
  16. 1208BrnoSouth Moravian, Czechia 360.4×▲858
  17. 1208NaplesCampania, Italy 360.4×▲31
  18. 1208PesqueríaNuevo León, Mexico 360.4×
  19. 1208AtlantaGeorgia, United States 360.4×▲558
  20. 1208SandersvilleGeorgia, United States 360.4×▲396
  21. 1208AnkenyIowa, United States 360.4×▼409
  22. 1208Ben LomondCalifornia, United States 360.4×▼25
  23. 1208SalinasCalifornia, United States 360.4×▼420
  24. 1208Simi ValleyCalifornia, United States 360.4×▼405
  25. 1208KentWashington, United States 360.4×▲153
  26. 1208Port AngelesWashington, United States 360.4×▲487
  27. 1227Minsklow-cost sensorsMinsk City, Belarus 360.4×
  28. 1227PrzemyślSubcarpathia, Poland 360.4×▼240
  29. 1227RichmondNew South Wales, Australia 360.4×▼202
  30. 1227SheffieldEngland, United Kingdom 360.4×▼267
  31. 1227EibergenGelderland, The Netherlands 360.4×▲757
  32. 1227WeizStyria, Austria 360.4×▼123
  33. 1227Frankfurt am MainHesse, Germany 360.4×▲834
  34. 1227GyőrGyőr-Moson-Sopron, Hungary 360.4×▼200
  35. 1227AostaAosta Valley, Italy 360.4×▲1043
  36. 1227Daytona BeachFlorida, United States 360.4×▲586
  37. 1227LafayetteLouisiana, United States 360.4×▼357
  38. 1227DentOhio, United States 360.4×▲502
  39. 1227DallasTexas, United States 360.4×▼800
  40. 1227Port ArthurTexas, United States 360.4×▲319
  41. 1227Grand IslandNebraska, United States 360.4×▼394
  42. 1227La VistaNebraska, United States 360.4×▼441
  43. 1227OceanoCalifornia, United States 360.4×▼584
  44. 1227White CenterWashington, United States 360.4×▲67
  45. 1227AllistonOntario, Canada 360.4×▲599
  46. 1227KaiapoiCanterbury, New Zealand 360.4×▼112
  47. 1227YonoOsaka, Japan 360.4×▼244
  48. 1248IrákleionCrete, Greece 350.4×▼132
  49. 1248AsprópyrgosAttica, Greece 350.4×▼742
  50. 1248SunderlandEngland, United Kingdom 350.4×▲454
  51. 1248Wageningenlow-cost sensorsGelderland, The Netherlands 350.4×
  52. 1248UtrechtUtrecht, The Netherlands 350.4×▲314
  53. 1248Almere Stadlow-cost sensorsFlevoland, The Netherlands 350.4×
  54. 1248Knokke-HeistFlanders, Belgium 350.4×▲382
  55. 1248GießenHesse, Germany 350.4×▲621
  56. 1248ParisÎle-de-France, France 350.4×▲553
  57. 1248MontbéliardBourgogne-Franche-Comté, France 350.4×▼13
  58. 1248PardubicePardubice Region, Czechia 350.4×▲560
  59. 1248ToruńKujawsko-Pomorskie, Poland 350.4×▼573
  60. 1248McCordsvilleIndiana, United States 350.4×▲326
  61. 1248Kansas CityKansas, United States 350.4×▼831
  62. 1248KnoxvilleTennessee, United States 350.4×▲988
  63. 1248FolsomCalifornia, United States 350.4×▼197
  64. 1248PowayCalifornia, United States 350.4×▼351
  65. 1265DębicaSubcarpathia, Poland 340.4×▼115
  66. 1265FerganaFergana, Uzbekistan 340.4×▼983
  67. 1265NijverdalOverijssel, The Netherlands 340.4×▲923
  68. 1265BredaNorth Brabant, The Netherlands 340.4×▲232
  69. 1265MelseleFlanders, Belgium 340.4×▲364
  70. 1265Amberglow-cost sensorsBavaria, Germany 340.4×
  71. 1265SolofraCampania, Italy 340.4×▲183
  72. 1265RoveretoTrentino-Alto Adige, Italy 340.4×▲16
  73. 1265Bonita SpringsFlorida, United States 340.4×▼23
  74. 1265OlatheKansas, United States 340.4×▼858
  75. 1265University CityMissouri, United States 340.4×▼333
  76. 1265GalvestonTexas, United States 340.4×▲343
  77. 1265TigardOregon, United States 340.4×▼257
  78. 1265AuburnWashington, United States 340.4×▲320
  79. 1265BremertonWashington, United States 340.4×▲664
  80. 1280DamyangJeollanam-do, South Korea 340.4×▼903
  81. 1280KosongGangwon-do, South Korea 340.4×▼814
  82. 1280WollongongNew South Wales, Australia 340.4×▼658
  83. 1280ChristchurchCanterbury, New Zealand 340.4×▼112
  84. 1280NijmegenGelderland, The Netherlands 340.4×▲388
  85. 1280AntwerpFlanders, Belgium 340.4×▲193
  86. 1280PanazolNew Aquitaine, France 340.4×
  87. 1280DoleBourgogne-Franche-Comté, France 340.4×▼208
  88. 1280AnnemasseAuvergne-Rhône-Alpes, France 340.4×▲635
  89. 1280Mladá BoleslavCentral Bohemia, Czechia 340.4×▼252
  90. 1280RacibórzSilesia, Poland 340.4×▲530
  91. 1280Palm CityFlorida, United States 340.4×▲360
  92. 1280LebanonOhio, United States 340.4×▼83
  93. 1280AthensTennessee, United States 340.4×
  94. 1280Santa ClaritaCalifornia, United States 340.4×▼611
  95. 1280SolvangCalifornia, United States 340.4×
  96. 1280Coos BayOregon, United States 340.4×▲270
  97. 1280ShawiniganQuebec, Canada 340.4×▼114
  98. 1298ChaniáCrete, Greece 330.4×▼726
  99. 1298PrešovPrešov Region, Slovakia 330.4×▼461
  100. 1298RiversdaleWestern Cape, South Africa 330.4×▼328

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, 01:00 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, #5 Dubai, #6 Dhaka, #7 Multan, #8 Faisalabad, #9 Gujranwala and #10 Vientiane. 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.

Download top 10 (PNG)

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 01:07 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).