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. 1800AmoraSetúbal, Portugal 230.3×▼100
  2. 1800ImminghamEngland, United Kingdom 230.3×▼390
  3. 1800Sittardlow-cost sensorsLimburg, The Netherlands 230.3×
  4. 1800WelsUpper Austria, Austria 230.3×▲450
  5. 1800ReutteTyrol, Austria 230.3×▼92
  6. 1800Sint-Truidenlow-cost sensorsFlanders, Belgium 230.3×
  7. 1800BensheimHesse, Germany 230.3×▲107
  8. 1800LunelOccitanie, France 230.3×▲231
  9. 1800Joué-lès-ToursCentre-Val de Loire, France 230.3×▼451
  10. 1800CrollesAuvergne-Rhône-Alpes, France 230.3×▲290
  11. 1800ChartresCentre-Val de Loire, France 230.3×▼77
  12. 1800CastresOccitanie, France 230.3×▲233
  13. 1800CalaisHauts-de-France, France 230.3×▼120
  14. 1800AvignonProvence-Alpes-Côte d'Azur, France 230.3×▼40
  15. 1800AngoulêmeNew Aquitaine, France 230.3×▼264
  16. 1800ŻaryLubusz, Poland 230.3×▼450
  17. 1800TarboroNorth Carolina, United States 230.3×▼32
  18. 1800DentsvilleSouth Carolina, United States 230.3×▼255
  19. 1800RutlandVermont, United States 230.3×▼527
  20. 1800PhoenixArizona, United States 230.3×▼526
  21. 1800Santa Monicalow-cost sensorsCalifornia, United States 230.3×▼689
  22. 1800WindsorColorado, United States 230.3×▼340
  23. 1800FlorenceOregon, United States 230.3×▲91
  24. 1800Grants PassOregon, United States 230.3×▲92
  25. 1800Oregon CityOregon, United States 230.3×▼395
  26. 1800LyndenWashington, United States 230.3×▲250
  27. 1800SheridanWyoming, United States 230.3×▼549
  28. 1800BadgerAlaska, United States 230.3×▼1705
  29. 1800Grande PrairieAlberta, Canada 230.3×▲508
  30. 1800RichmondBritish Columbia, Canada 230.3×▼103
  31. 1831Plevenlow-cost sensorsPleven, Bulgaria 220.3×
  32. 1831PeterboroughEngland, United Kingdom 220.3×▼393
  33. 1831MiddlewichEngland, United Kingdom 220.3×▼361
  34. 1831ManchesterEngland, United Kingdom 220.3×▼643
  35. 1831DerbyEngland, United Kingdom 220.3×▼679
  36. 1831ZürichZurich, Switzerland 220.3×
  37. 1831ReutlingenBaden-Wurttemberg, Germany 220.3×▲156
  38. 1831PotsdamBrandenburg, Germany 220.3×▲35
  39. 1831Königswinterlow-cost sensorsNorth Rhine-Westphalia, Germany 220.3×
  40. 1831PerpignanOccitanie, France 220.3×▲6
  41. 1831Clermont-FerrandAuvergne-Rhône-Alpes, France 220.3×▲379
  42. 1831ChambéryAuvergne-Rhône-Alpes, France 220.3×▼27
  43. 1831BastiaCorsica, France 220.3×▲380
  44. 1831SokolovCarlsbad Region, Czechia 220.3×▲482
  45. 1831PorsgrunnTelemark, Norway 220.3×
  46. 1831ColumbusIndiana, United States 220.3×▼64
  47. 1831KearneyMissouri, United States 220.3×▼974
  48. 1831Saint AndrewsSouth Carolina, United States 220.3×▼500
  49. 1831Brownsvillelow-cost sensorsTexas, United States 220.3×
  50. 1831TrentonNew Jersey, United States 220.3×▼319
  51. 1831YoungstownOhio, United States 220.3×▲388
  52. 1831Casa GrandeArizona, United States 220.3×▼984
  53. 1831GreeleyColorado, United States 220.3×▼685
  54. 1831North BendWashington, United States 220.3×▼316
  55. 1855KošiceKošice Region, Slovakia 220.3×▼295
  56. 1855AnamizuIshikawa, Japan 220.3×▼817
  57. 1855LondonEngland, United Kingdom 220.3×▼446
  58. 1855KreuzlingenThurgau, Switzerland 220.3×▲127
  59. 1855ÖstersundJämtland, Sweden 220.3×▲501
  60. 1855HeerlenLimburg, The Netherlands 220.3×▼232
  61. 1855Wiener NeustadtLower Austria, Austria 220.3×▲163
  62. 1855Hainburg an der DonauLower Austria, Austria 220.3×▼145
  63. 1855Biberach an der RißBaden-Wurttemberg, Germany 220.3×▲271
  64. 1855AalenBaden-Wurttemberg, Germany 220.3×▲272
  65. 1855OrléansCentre-Val de Loire, France 220.3×▼490
  66. 1855L'Isle-d'AbeauAuvergne-Rhône-Alpes, France 220.3×▼15
  67. 1855ÉpinalGrand Est, France 220.3×▼321
  68. 1855DieppeNormandy, France 220.3×▼12
  69. 1855Baume-les-DamesBourgogne-Franche-Comté, France 220.3×▼96
  70. 1855les EscaldesEscaldes-Engordany, Andorra 220.3×▲238
  71. 1855BratislavaBratislava Region, Slovakia 220.3×▲23
  72. 1855LjubljanaLjubljana, Slovenia 220.3×▼662
  73. 1855KourouGuyane, French Guiana 220.3×▲417
  74. 1855Heroica MatamorosTamaulipas, Mexico 220.3×▼615
  75. 1855LindenNew Jersey, United States 220.3×▼369
  76. 1855Palo Altolow-cost sensorsCalifornia, United States 220.3×▲35
  77. 1855Fort CollinsColorado, United States 220.3×▼306
  78. 1855PrinevilleOregon, United States 220.3×▲113
  79. 1855RoseburgOregon, United States 220.3×▲38
  80. 1855Hawaiian Paradise ParkHawaii, United States 220.3×▲157
  81. 1855CornwallOntario, Canada 220.3×▼337
  82. 1855OttawaOntario, Canada 220.3×▼299
  83. 1855SherbrookeQuebec, Canada 220.3×▲1
  84. 1855Kennedy TownshipPennsylvania, United States 220.3×▲392
  85. 1885KastoriaWest Macedonia, Greece 210.3×▼767
  86. 1885OlsztynWarmia-Masuria, Poland 210.3×▼849
  87. 1885OrangeNew South Wales, Australia 210.3×▼873
  88. 1885GeelongVictoria, Australia 210.3×▼227
  89. 1885WorthingEngland, United Kingdom 210.3×▼184
  90. 1885WiganEngland, United Kingdom 210.3×▼608
  91. 1885NorwichEngland, United Kingdom 210.3×▼264
  92. 1885VoitsbergStyria, Austria 210.3×▼387
  93. 1885GänserndorfLower Austria, Austria 210.3×▲18
  94. 1885Rösrathlow-cost sensorsNorth Rhine-Westphalia, Germany 210.3×
  95. 1885Nürtingenlow-cost sensorsBaden-Wurttemberg, Germany 210.3×
  96. 1885KarlsruheBaden-Wurttemberg, Germany 210.3×▲66
  97. 1885Le MansPays de la Loire, France 210.3×▼382
  98. 1885JuignéPays de la Loire, France 210.3×▼493
  99. 1885Fos-sur-MerProvence-Alpes-Côte d'Azur, France 210.3×▲324
  100. 1885Banská BystricaBanská Bystrica Region, Slovakia 210.3×▲113

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).