SmogRank / History / January 30, 2023

Most polluted cities on January 30, 2023

1,178 cities ranked by their average PM2.5 over the day; the worst was Gómez Palacio, Mexico, at 985.0 µg/m³. Each city's own local calendar day.

← Gómez Palacio 985.0 µg/m³ 900 µg/m³15 WHO 24-hour guideline
Every city ranked for January 30, 2023, one column each, worst on the left and cleanest on the right; height is PM2.5 in µg/m³. Point at it to read a city; tap to open it.
  1. 1Gómez PalacioDurango, Mexico
    500+65.7×
  2. 2Dhakalow-cost sensorsDhaka Division, Bangladesh
    35216.7×
  3. 3ZapopanJalisco, Mexico
    23710.8×
  4. 4Almatylow-cost sensorsAlmaty, Kazakhstan
    22610.1×
  5. 5DushanbeDushanbe, Tajikistan
    2098.9×
  6. 6N'DjamenaN’Djaména, Chad
    2008.3×
  7. 7HanoiHanoi, Vietnam
    1927.6×
  8. 8Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1877.1×
  9. 9Kathmandulow-cost sensorsBagmati Province, Nepal
    1846.9×
  10. 10SalorTashkent Region, Uzbekistan
    1836.7×
  11. 11Tha BoNong Khai, Thailand
    1766.0×
  12. 12Lahorelow-cost sensorsPunjab, Pakistan
    1735.8×
  13. 13Abujalow-cost sensorsFCT, Nigeria
    1665.2×
  14. 14TolucaMéxico, Mexico
    1655.0×
  15. 15MumbaiMaharashtra, India
    1624.8×
  16. 16HyderabadTelangana, India
    1624.8×
  17. 17DelhiDelhi, India
    1604.5×
  18. 18SukhothaiSukhothai, Thailand
    1594.5×
  19. 19BakuBaki, Azerbaijan
    1584.4×
  20. 20AshgabatAshgabat, Turkmenistan
    1574.3×
  21. 21LampangLampang, Thailand
    1564.2×
  22. 22LoeiLoei, Thailand
    1554.0×
  23. 23PhraePhrae, Thailand
    1543.9×
  24. 24BitolaBitola, North Macedonia
    1533.9×
  25. 25NanNan, Thailand
    1533.9×
  26. 26Nong Bua LamphuNong Bua Lamphu, Thailand
    1453.6×
  27. 27AlexandriaAlexandria, Egypt
    1423.5×
  28. 28UttaraditUttaradit, Thailand
    1413.5×
  29. 29Banja LukaSrpska, Bosnia and Herzegovina
    1403.4×
  30. 30NišCentral Serbia, Serbia
    1383.4×
  31. 30ColomboWestern Province, Sri Lanka
    1383.4×
  32. 32Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1373.3×
  33. 33Kampalalow-cost sensorsCentral Region, Uganda
    1343.3×
  34. 34Kamphaeng PhetKamphaeng Phet, Thailand
    1343.3×
  35. 35Spišská Nová VesKošice Region, Slovakia
    1333.2×
  36. 36Khlong Sam WaBangkok, Thailand
    1333.2×
  37. 37ShanghaiShanghai, China
    1313.2×
  38. 38BamakoBamako, Mali
    1313.2×
  39. 39PhetchabunPhetchabun, Thailand
    1283.1×
  40. 40BaghdadBaghdad, Iraq
    1283.1×
  41. 41CelayaGuanajuato, Mexico
    1273.1×
  42. 42RatchaburiRatchaburi, Thailand
    1273.1×
  43. 43San Mateo AtencoMéxico, Mexico
    1233.0×
  44. 44Udon ThaniUdon Thani, Thailand
    1222.9×
  45. 45Mae SotTak, Thailand
    1202.9×
  46. 46TakTak, Thailand
    1202.9×
  47. 47Karachilow-cost sensorsSindh, Pakistan
    1192.9×
  48. 47YangonYangon, Myanmar
    1192.9×
  49. 49PakxanBolikhamsai, Laos
    1172.8×
  50. 50Nakhon SawanNakhon Sawan, Thailand
    1142.7×
  51. 51Lat KrabangBangkok, Thailand
    1132.7×
  52. 52Chiang MaiChiang Mai, Thailand
    1122.7×
  53. 52Ciudad NezahualcoyotlMéxico, Mexico
    1122.7×
  54. 54SallanchesAuvergne-Rhône-Alpes, France
    1122.7×
  55. 55Bueng KumBangkok, Thailand
    1112.6×
  56. 56Khan Na YaoBangkok, Thailand
    1112.6×
  57. 57KigaliKigali, Rwanda
    1102.6×
  58. 58Nong ChokBangkok, Thailand
    1092.6×
  59. 59Bang Khun ThianBangkok, Thailand
    1082.6×
  60. 60PhichitPhichit, Thailand
    1082.6×
  61. 60Ban HouakhouaBokeo, Laos
    1082.6×
  62. 62Saphan SungBangkok, Thailand
    1072.5×
  63. 63Port AlberniBritish Columbia, Canada
    1062.5×
  64. 64CholulaPuebla, Mexico
    1062.5×
  65. 65Islamabadlow-cost sensorsIslamabad, Pakistan
    1052.5×
  66. 66Chiang RaiChiang Rai, Thailand
    1052.5×
  67. 66BeijingBeijing, China
    1052.5×
  68. 68Sai MaiBangkok, Thailand
    1042.5×
  69. 69TurinPiedmont, Italy
    1042.5×
  70. 70Nong KhaemBangkok, Thailand
    1042.4×
  71. 70Bang KapiBangkok, Thailand
    1042.4×
  72. 72IrapuatoGuanajuato, Mexico
    1032.4×
  73. 72Lak SiBangkok, Thailand
    1032.4×
  74. 74Ubon RatchathaniUbon Ratchathani, Thailand
    1032.4×
  75. 75MukdahanMukdahan, Thailand
    1022.4×
  76. 75Bang NaBangkok, Thailand
    1022.4×
  77. 77TocopillaAntofagasta, Chile
    1012.4×
  78. 78Mueang NonthaburiNonthaburi, Thailand
    1012.4×
  79. 79Samut SakhonSamut Sakhon, Thailand
    1002.4×
  80. 80BangkokBangkok, Thailand
    992.3×
  81. 80XonacatlánMéxico, Mexico
    992.3×
  82. 82Mae SaiChiang Rai, Thailand
    992.3×
  83. 83ChaiyaphumChaiyaphum, Thailand
    992.3×
  84. 84Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    982.3×
  85. 85San Salvador TizatlalliMéxico, Mexico
    982.3×
  86. 86Nakhon RatchasimaNakhon Ratchasima, Thailand
    982.3×
  87. 87KalasinKalasin, Thailand
    972.3×
  88. 87TlaquepaqueJalisco, Mexico
    972.3×
  89. 89JeddahMecca Region, Saudi Arabia
    972.2×
  90. 89Villa Poeta José Gálvez BarrenecheaLima region, Peru
    972.2×
  91. 91SaraburiSaraburi, Thailand
    962.2×
  92. 92Nakhon PathomNakhon Pathom, Thailand
    962.2×
  93. 92Buri RamBuriram, Thailand
    962.2×
  94. 94Şabāḩ as SālimMubārak al Kabīr, Kuwait
    952.2×
  95. 94MexicaliBaja California, Mexico
    952.2×
  96. 96Ban Samae DamBangkok, Thailand
    952.2×
  97. 96PrievidzaTrenčín Region, Slovakia
    952.2×
  98. 98Sakon NakhonSakon Nakhon, Thailand
    952.2×
  99. 99PristinaPristina, Kosovo
    942.2×
  100. 99Khlong LuangPathum Thani, Thailand
    942.2×
  101. 101Ban Khlong PrawetBangkok, Thailand
    942.1×
  102. 102León de los AldamaGuanajuato, Mexico
    932.1×
  103. 103Hua HinPrachuap Khiri Khan, Thailand
    932.1×
  104. 104MeylanAuvergne-Rhône-Alpes, France
    932.1×
  105. 105BordeauxNew Aquitaine, France
    932.1×
  106. 106TratTrat, Thailand
    922.1×
  107. 107GrenobleAuvergne-Rhône-Alpes, France
    922.1×
  108. 108Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    922.1×
  109. 109Kosovo PoljePristina, Kosovo
    912.1×
  110. 109Si Maha PhotPrachin Buri, Thailand
    912.1×
  111. 109Laem ChabangChon Buri, Thailand
    912.1×
  112. 112SalamancaGuanajuato, Mexico
    912.0×
  113. 113PátraWest Greece, Greece
    912.0×
  114. 113GuangzhouGuangdong, China
    912.0×
  115. 115Sing BuriSing Buri, Thailand
    902.0×
  116. 116Suphan BuriSuphan Buri, Thailand
    902.0×
  117. 117Roi EtRoi Et, Thailand
    892.0×
  118. 118RužomberokŽilina Region, Slovakia
    881.9×
  119. 118AnacortesWashington, United States
    881.9×
  120. 120PejëPec, Kosovo
    881.9×
  121. 120PhuketPhuket, Thailand
    881.9×
  122. 122AnnemasseAuvergne-Rhône-Alpes, France
    871.9×
  123. 122AngoulêmeNew Aquitaine, France
    871.9×
  124. 124KošiceKošice Region, Slovakia
    871.9×
  125. 124Lop BuriLopburi, Thailand
    871.9×
  126. 126LimaLima Province, Peru
    871.9×
  127. 127Haskovolow-cost sensorsHaskovo, Bulgaria
    861.9×
  128. 128Ban ChangRayong, Thailand
    851.8×
  129. 129BelgradeCentral Serbia, Serbia
    851.8×
  130. 130AranyaprathetSa Kaeo, Thailand
    851.8×
  131. 131MonacoMunicipality of Monaco, Monaco
    841.8×
  132. 132Wan ChaiWan Chai, Hong Kong
    841.8×
  133. 132ChambéryAuvergne-Rhône-Alpes, France
    841.8×
  134. 134MitrovicëMitrovica, Kosovo
    841.8×
  135. 134Si Sa KetSi Sa Ket, Thailand
    841.8×
  136. 136Botevgradlow-cost sensorsSofia, Bulgaria
    841.8×
  137. 137Phra PradaengSamut Prakan, Thailand
    841.8×
  138. 137ManosqueProvence-Alpes-Côte d'Azur, France
    841.8×
  139. 139TrenčínTrenčín Region, Slovakia
    831.8×
  140. 140PennsaukenNew Jersey, United States
    831.7×
  141. 141Ciudad Benito JuárezNuevo León, Mexico
    831.7×
  142. 142BogotáBogota D.C., Colombia
    821.7×
  143. 142Ciudad JuárezChihuahua, Mexico
    821.7×
  144. 144LublinLublin, Poland
    821.7×
  145. 145AlbertvilleAuvergne-Rhône-Alpes, France
    821.7×
  146. 146Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    821.7×
  147. 147PrešovPrešov Region, Slovakia
    821.7×
  148. 147MartinŽilina Region, Slovakia
    821.7×
  149. 149Vranov nad TopľouPrešov Region, Slovakia
    811.7×
  150. 150RayongRayong, Thailand
    801.7×
  151. 151HumennéPrešov Region, Slovakia
    801.7×
  152. 152AntananarivoAnalamanga, Madagascar
    801.6×
  153. 152Ban Talat BuengChon Buri, Thailand
    801.6×
  154. 154PoitiersNew Aquitaine, France
    801.6×
  155. 155Surat ThaniSurat Thani, Thailand
    791.6×
  156. 155EsztergomKomárom-Esztergom, Hungary
    791.6×
  157. 155RancaguaO'Higgins Region, Chile
    791.6×
  158. 158Clermont-FerrandAuvergne-Rhône-Alpes, France
    791.6×
  159. 158Mexico CityMexico City, Mexico
    791.6×
  160. 160Tepeji del Río de OcampoHidalgo, Mexico
    781.6×
  161. 161Sevlievolow-cost sensorsGabrovo, Bulgaria
    781.6×
  162. 162PartizánskeTrenčín Region, Slovakia
    781.6×
  163. 162PueblaPuebla, Mexico
    781.6×
  164. 164Tin Shui WaiYuen Long, Hong Kong
    771.6×
  165. 165ChanthaburiChanthaburi, Thailand
    771.5×
  166. 166SenicaTrnava Region, Slovakia
    761.5×
  167. 167Ciudad ApodacaNuevo León, Mexico
    761.5×
  168. 168Banská BystricaBanská Bystrica Region, Slovakia
    761.5×
  169. 169VanderbijlparkGauteng, South Africa
    751.5×
  170. 169FanlingNorth District, Hong Kong
    751.5×
  171. 169San Andrés TuxtlaVeracruz, Mexico
    751.5×
  172. 172Gabrovolow-cost sensorsGabrovo, Bulgaria
    751.5×
  173. 172Ga-RankuwaNorth West, South Africa
    751.5×
  174. 172Mong KokYau Tsim Mong District, Hong Kong
    751.5×
  175. 172ParklandWashington, United States
    751.5×
  176. 176ButteMontana, United States
    751.5×
  177. 177KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    741.4×
  178. 178SantiagoSantiago Metropolitan, Chile
    741.4×
  179. 179ŽilinaŽilina Region, Slovakia
    741.4×
  180. 180BloisCentre-Val de Loire, France
    741.4×
  181. 181Santa CatarinaNuevo León, Mexico
    731.4×
  182. 182ChisinauChișinău Municipality, Moldova
    731.4×
  183. 183MonterreyNuevo León, Mexico
    731.4×
  184. 184NairobiNairobi County, Kenya
    731.4×
  185. 184QuillotaValparaiso, Chile
    731.4×
  186. 186San CarlosÑuble, Chile
    721.4×
  187. 187DaxNew Aquitaine, France
    721.4×
  188. 187NitraNitra Region, Slovakia
    721.4×
  189. 187La SerenaCoquimbo Region, Chile
    721.4×
  190. 190NacimientoBiobio, Chile
    721.4×
  191. 191VolosThessaly, Greece
    721.3×
  192. 191San Juan del RíoQuerétaro, Mexico
    721.3×
  193. 193Puente AltoSantiago Metropolitan, Chile
    711.3×
  194. 194VictoriaCentral and Western, Hong Kong
    711.3×
  195. 195San Tung Chung HangIslands, Hong Kong
    711.3×
  196. 195Jastrzębie ZdrójSilesia, Poland
    711.3×
  197. 195Ecatepec de MorelosMéxico, Mexico
    711.3×
  198. 195AricaArica y Parinacota Region, Chile
    711.3×
  199. 195Santiago de QuerétaroQuerétaro, Mexico
    711.3×
  200. 200Addis AbabaAddis Ababa, Ethiopia
    711.3×

Top 200 of 1,178 shown.

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

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SmogRank, most polluted cities, PM2.5, January 30, 2023, smogrank.com/history/2023-01-30 (accessed 2 Oct 2026).

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