SmogRank / History / January 17, 2024

Most polluted cities on January 17, 2024

2,081 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 388.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during January 17, 2024. All episodes.

← Lahore 388.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for January 17, 2024, 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. 1Lahorelow-cost sensorsPunjab, Pakistan
    500+25.9×
  2. 2Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    44319.8×
  3. 3DelhiDelhi, India
    33016.0×
  4. 4Dhakalow-cost sensorsDhaka Division, Bangladesh
    29714.8×
  5. 5KolkataWest Bengal, India
    24311.2×
  6. 6Abujalow-cost sensorsFCT, Nigeria
    2229.8×
  7. 7Islamabadlow-cost sensorsIslamabad, Pakistan
    2179.5×
  8. 8CairoCairo, Egypt
    2098.9×
  9. 9Banja LukaSrpska, Bosnia and Herzegovina
    2028.5×
  10. 10Karachilow-cost sensorsSindh, Pakistan
    1937.7×
  11. 11SalorTashkent Region, Uzbekistan
    1897.3×
  12. 12BeijingBeijing, China
    1846.8×
  13. 13TetovoTetovo, North Macedonia
    1796.4×
  14. 14KavadarciKavadarci, North Macedonia
    1735.8×
  15. 15NysaOpole Voivodeship, Poland
    1725.7×
  16. 16Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1705.5×
  17. 17Kampalalow-cost sensorsCentral Region, Uganda
    1695.4×
  18. 18VelesVeles, North Macedonia
    1665.2×
  19. 19DushanbeDushanbe, Tajikistan
    1665.1×
  20. 20Jastrzębie ZdrójSilesia, Poland
    1634.8×
  21. 21PljevljaPljevlja, Montenegro
    1624.8×
  22. 22N'DjamenaN’Djaména, Chad
    1604.6×
  23. 23KigaliKigali, Rwanda
    1594.5×
  24. 24NišCentral Serbia, Serbia
    1594.4×
  25. 25MumbaiMaharashtra, India
    1584.4×
  26. 26Samut SakhonSamut Sakhon, Thailand
    1584.4×
  27. 27HyderabadTelangana, India
    1574.3×
  28. 28Wodzisław ŚląskiSilesia, Poland
    1554.1×
  29. 29DziałdowoWarmia-Masuria, Poland
    1544.0×
  30. 30OpoleOpole Voivodeship, Poland
    1523.8×
  31. 31BitolaBitola, North Macedonia
    1523.8×
  32. 32ShenyangLiaoning, China
    1473.6×
  33. 33Jelenia GóraLower Silesia, Poland
    1453.6×
  34. 34Ulan BatorUlaanbaatar, Mongolia
    1433.5×
  35. 35Kędzierzyn-KoźleOpole Voivodeship, Poland
    1423.5×
  36. 36RatchaburiRatchaburi, Thailand
    1423.5×
  37. 37Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1413.4×
  38. 37PrzemyślSubcarpathia, Poland
    1413.4×
  39. 39Sevlievolow-cost sensorsGabrovo, Bulgaria
    1383.4×
  40. 40SarajevoFederation of B&H, Bosnia and Herzegovina
    1363.3×
  41. 41Ban Samae DamBangkok, Thailand
    1333.2×
  42. 41RacibórzSilesia, Poland
    1333.2×
  43. 43CapannoriTuscany, Italy
    1313.2×
  44. 44IlindenIlinden, North Macedonia
    1293.1×
  45. 45Khlong Sam WaBangkok, Thailand
    1293.1×
  46. 46Lat KrabangBangkok, Thailand
    1283.1×
  47. 47Bang Bo DistrictSamut Prakan, Thailand
    1273.1×
  48. 48Nong KhaemBangkok, Thailand
    1273.1×
  49. 49AranyaprathetSa Kaeo, Thailand
    1273.1×
  50. 50AthensAttica, Greece
    1263.1×
  51. 51Kathmandulow-cost sensorsBagmati Province, Nepal
    1253.0×
  52. 51Nakhon PathomNakhon Pathom, Thailand
    1253.0×
  53. 53KanchanaburiKanchanaburi, Thailand
    1243.0×
  54. 53GuangzhouGuangdong, China
    1243.0×
  55. 55Khlong LuangPathum Thani, Thailand
    1243.0×
  56. 56TurinPiedmont, Italy
    1233.0×
  57. 57PodgoricaPodgorica, Montenegro
    1192.9×
  58. 58Bang NaBangkok, Thailand
    1182.8×
  59. 58AlessandriaPiedmont, Italy
    1182.8×
  60. 60Bueng KumBangkok, Thailand
    1172.8×
  61. 61ColomboWestern Province, Sri Lanka
    1162.8×
  62. 62BoiseIdaho, United States
    1152.7×
  63. 63WłocławekKujawsko-Pomorskie, Poland
    1152.7×
  64. 64Lak SiBangkok, Thailand
    1152.7×
  65. 65Saphan SungBangkok, Thailand
    1142.7×
  66. 66SukhothaiSukhothai, Thailand
    1132.7×
  67. 67Khan Na YaoBangkok, Thailand
    1122.7×
  68. 68AstanaAstana, Kazakhstan
    1122.7×
  69. 69Ban ChangRayong, Thailand
    1112.6×
  70. 70KatowiceSilesia, Poland
    1102.6×
  71. 71Czechowice-DziedziceSilesia, Poland
    1102.6×
  72. 72ŁukówLublin, Poland
    1092.6×
  73. 73RayongRayong, Thailand
    1082.6×
  74. 74Phra PradaengSamut Prakan, Thailand
    1072.5×
  75. 75HavířovMoravian-Silesian Region, Czechia
    1062.5×
  76. 76BangkokBangkok, Thailand
    1062.5×
  77. 76KłodzkoLower Silesia, Poland
    1062.5×
  78. 78HanoiHanoi, Vietnam
    1052.5×
  79. 79YangonYangon, Myanmar
    1052.5×
  80. 79Samut PrakanSamut Prakan, Thailand
    1052.5×
  81. 81NiskoSubcarpathia, Poland
    1042.4×
  82. 81SkopjeGrad Skopje, North Macedonia
    1042.4×
  83. 83SofiaSofia-Capital, Bulgaria
    1032.4×
  84. 83Si Maha PhotPrachin Buri, Thailand
    1032.4×
  85. 83Laem ChabangChon Buri, Thailand
    1032.4×
  86. 86LegionowoMazovia, Poland
    1032.4×
  87. 86Bang KapiBangkok, Thailand
    1032.4×
  88. 86Lake ElsinoreCalifornia, United States
    1032.4×
  89. 89AugustówPodlasie, Poland
    1032.4×
  90. 89CalexicoCalifornia, United States
    1032.4×
  91. 91Hua HinPrachuap Khiri Khan, Thailand
    1022.4×
  92. 92Ban Khlong PrawetBangkok, Thailand
    1022.4×
  93. 93PruszkówMazovia, Poland
    1022.4×
  94. 93Sai MaiBangkok, Thailand
    1022.4×
  95. 95LęborkPomerania, Poland
    1022.4×
  96. 96Nong ChokBangkok, Thailand
    1012.4×
  97. 97KrakówLesser Poland, Poland
    1012.4×
  98. 98Almatylow-cost sensorsAlmaty, Kazakhstan
    1012.4×
  99. 99Mueang NonthaburiNonthaburi, Thailand
    1002.4×
  100. 100BorgomaneroPiedmont, Italy
    1002.4×
  101. 101BydgoszczKujawsko-Pomorskie, Poland
    1002.3×
  102. 101LimaLima Province, Peru
    1002.3×
  103. 103OlsztynWarmia-Masuria, Poland
    992.3×
  104. 104DejCluj County, Romania
    992.3×
  105. 105Ban Talat BuengChon Buri, Thailand
    982.3×
  106. 105KutnoŁódź Voivodeship, Poland
    982.3×
  107. 107KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    982.3×
  108. 107PoznańGreater Poland, Poland
    982.3×
  109. 109Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    982.3×
  110. 110MeridianIdaho, United States
    982.3×
  111. 111Konstancin-JeziornaMazovia, Poland
    972.3×
  112. 112Spišská Nová VesKošice Region, Slovakia
    962.2×
  113. 112GrazStyria, Austria
    962.2×
  114. 114LublinLublin, Poland
    962.2×
  115. 115KościanGreater Poland, Poland
    962.2×
  116. 116ZgierzŁódź Voivodeship, Poland
    952.2×
  117. 117SiedlceMazovia, Poland
    942.2×
  118. 117Suphan BuriSuphan Buri, Thailand
    942.2×
  119. 117Lop BuriLopburi, Thailand
    942.2×
  120. 120SaraburiSaraburi, Thailand
    942.2×
  121. 121ŻyrardówMazovia, Poland
    942.1×
  122. 121WrocławLower Silesia, Poland
    942.1×
  123. 123FontanaCalifornia, United States
    932.1×
  124. 124LampangLampang, Thailand
    932.1×
  125. 125SuwałkiPodlasie, Poland
    932.1×
  126. 126RanongRanong province, Thailand
    932.1×
  127. 127GdańskPomerania, Poland
    922.1×
  128. 128DunkirkHauts-de-France, France
    922.1×
  129. 128KaliszGreater Poland, Poland
    922.1×
  130. 130Haskovolow-cost sensorsHaskovo, Bulgaria
    922.1×
  131. 131PłockMazovia, Poland
    922.1×
  132. 131GdyniaPomerania, Poland
    922.1×
  133. 133AmmanAmman, Jordan
    912.0×
  134. 133Sing BuriSing Buri, Thailand
    912.0×
  135. 133ToruńKujawsko-Pomorskie, Poland
    912.0×
  136. 136PułtuskMazovia, Poland
    912.0×
  137. 137CelayaGuanajuato, Mexico
    912.0×
  138. 138Santa Anita - Los FicusLima region, Peru
    912.0×
  139. 139ZamośćLublin, Poland
    902.0×
  140. 140WarsawMazovia, Poland
    902.0×
  141. 141ElblągWarmia-Masuria, Poland
    892.0×
  142. 142AvignonProvence-Alpes-Côte d'Azur, France
    892.0×
  143. 143WolfsbergCarinthia, Austria
    892.0×
  144. 144Nakhon RatchasimaNakhon Ratchasima, Thailand
    881.9×
  145. 145OlomoucOlomouc Region, Czechia
    881.9×
  146. 145ŁaskŁódź Voivodeship, Poland
    881.9×
  147. 145KościerzynaPomerania, Poland
    881.9×
  148. 148Kamphaeng PhetKamphaeng Phet, Thailand
    881.9×
  149. 149WawerMazovia, Poland
    881.9×
  150. 150Mae SotTak, Thailand
    871.9×
  151. 151RiversideCalifornia, United States
    871.9×
  152. 152RadomskoŁódź Voivodeship, Poland
    871.9×
  153. 153ChanthaburiChanthaburi, Thailand
    871.9×
  154. 153ZnojmoSouth Moravian, Czechia
    871.9×
  155. 155RadomMazovia, Poland
    861.9×
  156. 155KochaniKochani, North Macedonia
    861.9×
  157. 157PhuketPhuket, Thailand
    861.9×
  158. 157Nakhon SawanNakhon Sawan, Thailand
    861.9×
  159. 159NanNan, Thailand
    861.9×
  160. 160Chai NatChai Nat, Thailand
    861.9×
  161. 160ŁódźŁódź Voivodeship, Poland
    861.9×
  162. 162LitvínovÚstí nad Labem Region, Czechia
    861.8×
  163. 163OtwockMazovia, Poland
    851.8×
  164. 163Klagenfurt am WörtherseeCarinthia, Austria
    851.8×
  165. 165PiraeusAttica, Greece
    851.8×
  166. 165StarachowiceŚwiętokrzyskie, Poland
    851.8×
  167. 165DěčínÚstí nad Labem Region, Czechia
    851.8×
  168. 168Hradec KrálovéHradec Králové Region, Czechia
    851.8×
  169. 169MentonProvence-Alpes-Côte d'Azur, France
    841.8×
  170. 170Silao de la VictoriaGuanajuato, Mexico
    841.8×
  171. 171Gorzów WielkopolskiLubusz, Poland
    841.8×
  172. 172Mae SaiChiang Rai, Thailand
    841.8×
  173. 172OstravaMoravian-Silesian Region, Czechia
    841.8×
  174. 172BerounCentral Bohemia, Czechia
    841.8×
  175. 175PhayaoPhayao, Thailand
    841.8×
  176. 176JarosławSubcarpathia, Poland
    831.8×
  177. 177Surat ThaniSurat Thani, Thailand
    831.8×
  178. 178Ludwigshafen am RheinRheinland-Pfalz, Germany
    831.8×
  179. 179BiałystokPodlasie, Poland
    831.7×
  180. 179Wan ChaiWan Chai, Hong Kong
    831.7×
  181. 181SpeyerRheinland-Pfalz, Germany
    831.7×
  182. 182PhichitPhichit, Thailand
    821.7×
  183. 182WormsRheinland-Pfalz, Germany
    821.7×
  184. 184Jurupa ValleyCalifornia, United States
    821.7×
  185. 185Strzelce OpolskieOpole Voivodeship, Poland
    821.7×
  186. 186Addis AbabaAddis Ababa, Ethiopia
    821.7×
  187. 186UttaraditUttaradit, Thailand
    821.7×
  188. 186FréjusProvence-Alpes-Côte d'Azur, France
    821.7×
  189. 189ThessaloníkiCentral Macedonia, Greece
    821.7×
  190. 190Botevgradlow-cost sensorsSofia, Bulgaria
    811.7×
  191. 191TratTrat, Thailand
    811.7×
  192. 191ŚwiecieKujawsko-Pomorskie, Poland
    811.7×
  193. 193TepliceÚstí nad Labem Region, Czechia
    811.7×
  194. 194IzegemFlanders, Belgium
    801.7×
  195. 194VeszprémVeszprém, Hungary
    801.7×
  196. 196OpavaMoravian-Silesian Region, Czechia
    801.7×
  197. 197ChennaiTamil Nadu, India
    801.6×
  198. 197Tuen MunTuen Mun, Hong Kong
    801.6×
  199. 199MichelstadtHesse, Germany
    801.6×
  200. 199MostÚstí nad Labem Region, Czechia
    801.6×

Top 200 of 2,081 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

Not covered: the government monitoring networks of China and Turkey, which publish no terms that let us reuse their readings. Most cities there are missing from this board, not clean. Why.

Use this board

SmogRank, most polluted cities, PM2.5, January 17, 2024, smogrank.com/history/2024-01-17 (accessed 3 Oct 2026).

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