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. 1597LinzUpper Austria, Austria 270.3×▼98
  2. 1597KlosterneuburgLower Austria, Austria 270.3×▼209
  3. 1597Bruck an der MurStyria, Austria 270.3×▲524
  4. 1597BrusselsBrussels Capital, Belgium 270.3×▲352
  5. 1597Schwäbisch HallBaden-Wurttemberg, Germany 270.3×▲353
  6. 1597NauenBrandenburg, Germany 270.3×▲270
  7. 1597HaguenauGrand Est, France 270.3×▲244
  8. 1597AmiensHauts-de-France, France 270.3×▼338
  9. 1597NitraNitra Region, Slovakia 270.3×▼177
  10. 1597Žďár nad SázavouVysocina, Czechia 270.3×▲282
  11. 1597Fort SmithArkansas, United States 270.3×▼650
  12. 1597MiddlesboroKentucky, United States 270.3×▲753
  13. 1597LoudonTennessee, United States 270.3×
  14. 1597MaranaArizona, United States 270.3×▲138
  15. 1597Sunland ParkNew Mexico, United States 270.3×▼349
  16. 1597Spanish SpringsNevada, United States 270.3×▲12
  17. 1597Baker CityOregon, United States 270.3×▼136
  18. 1597BurienWashington, United States 270.3×▼43
  19. 1619Haskovolow-cost sensorsHaskovo, Bulgaria 260.3×▼433
  20. 1619AdelaideSouth Australia, Australia 260.3×▼520
  21. 1619MusselkanaalGroningen, The Netherlands 260.3×▲669
  22. 1619Hilversumlow-cost sensorsNorth Holland, The Netherlands 260.3×
  23. 1619Assenlow-cost sensorsDrenthe, The Netherlands 260.3×
  24. 1619Bruggelow-cost sensorsFlanders, Belgium 260.3×
  25. 1619StuttgartBaden-Wurttemberg, Germany 260.3×▲245
  26. 1619Niederkassellow-cost sensorsNorth Rhine-Westphalia, Germany 260.3×
  27. 1619LudwigsburgBaden-Wurttemberg, Germany 260.3×▲286
  28. 1619Hofheim am Taunuslow-cost sensorsHesse, Germany 260.3×
  29. 1619EdenderryLeinster, Ireland 260.3×▼1358
  30. 1619TroyesGrand Est, France 260.3×▲253
  31. 1619ToursCentre-Val de Loire, France 260.3×▼274
  32. 1619SorbiersAuvergne-Rhône-Alpes, France 260.3×▼50
  33. 1619PoitiersNew Aquitaine, France 260.3×▼300
  34. 1619MarignaneProvence-Alpes-Côte d'Azur, France 260.3×▲469
  35. 1619Le HavreNormandy, France 260.3×▲256
  36. 1619CannesProvence-Alpes-Côte d'Azur, France 260.3×▲415
  37. 1619KadaňÚstí nad Labem Region, Czechia 260.3×▲261
  38. 1619PollaCampania, Italy 260.3×▲541
  39. 1619MantuaLombardy, Italy 260.3×
  40. 1619Belle GladeFlorida, United States 260.3×▲146
  41. 1619MarquetteMichigan, United States 260.3×▼736
  42. 1619Warrensville HeightsOhio, United States 260.3×▲556
  43. 1619FontanaCalifornia, United States 260.3×▼639
  44. 1619OdessaTexas, United States 260.3×▼308
  45. 1645RigaRiga, Latvia 260.3×▲54
  46. 1645Perniklow-cost sensorsPernik, Bulgaria 260.3×
  47. 1645KozániWest Macedonia, Greece 260.3×▼737
  48. 1645MelbourneVictoria, Australia 260.3×▲183
  49. 1645BathurstNew South Wales, Australia 260.3×▼308
  50. 1645Stoke-on-TrentEngland, United Kingdom 260.3×▼644
  51. 1645NottinghamEngland, United Kingdom 260.3×▼606
  52. 1645ChesterfieldEngland, United Kingdom 260.3×▼329
  53. 1645BasildonEngland, United Kingdom 260.3×▼542
  54. 1645SalzburgSalzburg, Austria 260.3×▲24
  55. 1645LiègeWallonia, Belgium 260.3×▼492
  56. 1645Leuvenlow-cost sensorsFlanders, Belgium 260.3×
  57. 1645Habay-la-VieilleWallonia, Belgium 260.3×▼523
  58. 1645TübingenBaden-Wurttemberg, Germany 260.3×▲107
  59. 1645Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France 260.3×▲309
  60. 1645VesoulBourgogne-Franche-Comté, France 260.3×
  61. 1645MoulinsAuvergne-Rhône-Alpes, France 260.3×▲193
  62. 1645LyonAuvergne-Rhône-Alpes, France 260.3×▲194
  63. 1645TrenčínTrenčín Region, Slovakia 260.3×▼226
  64. 1645KroměřížZlín, Czechia 260.3×▲164
  65. 1645RiedstadtHesse, Germany 260.3×▲422
  66. 1645WellingtonFlorida, United States 260.3×▲171
  67. 1645ChanuteKansas, United States 260.3×▼1111
  68. 1645Corpus ChristiTexas, United States 260.3×▼291
  69. 1645WindcrestTexas, United States 260.3×▼504
  70. 1645Cleveland HeightsOhio, United States 260.3×▲499
  71. 1645CantonOhio, United States 260.3×▲572
  72. 1645WarrenOhio, United States 260.3×▲531
  73. 1645El RioCalifornia, United States 260.3×▼430
  74. 1645Hawthornelow-cost sensorsCalifornia, United States 260.3×▼639
  75. 1645LompocCalifornia, United States 260.3×▼482
  76. 1645Sunnyvalelow-cost sensorsCalifornia, United States 260.3×▲737
  77. 1645HobbsNew Mexico, United States 260.3×▼335
  78. 1645North PortlandOregon, United States 260.3×▲6
  79. 1679Kazanlow-cost sensorsTatarstan Republic, Russia 250.3×
  80. 1679TrebišovKošice Region, Slovakia 250.3×▼693
  81. 1679SpekeEngland, United Kingdom 250.3×▼19
  82. 1679LoughboroughEngland, United Kingdom 250.3×▼339
  83. 1679DunholmeEngland, United Kingdom 250.3×▼14
  84. 1679GiubiascoTicino, Switzerland 250.3×
  85. 1679Stadskanaallow-cost sensorsGroningen, The Netherlands 250.3×
  86. 1679NoordwijkerhoutSouth Holland, The Netherlands 250.3×▼12
  87. 1679SchwazTyrol, Austria 250.3×▼54
  88. 1679EisenstadtBurgenland, Austria 250.3×▼51
  89. 1679GenkFlanders, Belgium 250.3×▼489
  90. 1679UlmBaden-Wurttemberg, Germany 250.3×▲340
  91. 1679Bad Rappenaulow-cost sensorsBaden-Wurttemberg, Germany 250.3×
  92. 1679Esch-sur-AlzetteEsch-sur-Alzette, Luxembourg 250.3×▼265
  93. 1679Saint-DizierGrand Est, France 250.3×▼333
  94. 1679RodezOccitanie, France 250.3×▼1
  95. 1679AlençonNormandy, France 250.3×▲198
  96. 1679TrnavaTrnava Region, Slovakia 250.3×▲280
  97. 1679LiberecLiberec Region, Czechia 250.3×▼257
  98. 1679Coconut CreekFlorida, United States 250.3×▲47
  99. 1679GreensboroNorth Carolina, United States 250.3×▲139
  100. 1679Cedar ParkTexas, United States 250.3×▼456

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.

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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 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).