SmogRank / History / January 18, 2024

Most polluted cities on January 18, 2024

2,062 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 292.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during January 18, 2024. All episodes.

← Lahore 292.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for January 18, 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
    43319.5×
  2. 2Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    39418.1×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    27813.5×
  4. 4Islamabadlow-cost sensorsIslamabad, Pakistan
    27613.4×
  5. 5DelhiDelhi, India
    26012.3×
  6. 6KolkataWest Bengal, India
    25311.9×
  7. 7CairoCairo, Egypt
    2179.5×
  8. 8Abujalow-cost sensorsFCT, Nigeria
    2068.7×
  9. 9Karachilow-cost sensorsSindh, Pakistan
    2028.5×
  10. 10Ulan BatorUlaanbaatar, Mongolia
    1836.7×
  11. 11Almatylow-cost sensorsAlmaty, Kazakhstan
    1806.5×
  12. 12TetovoTetovo, North Macedonia
    1756.0×
  13. 13DziałdowoWarmia-Masuria, Poland
    1705.5×
  14. 14AugustówPodlasie, Poland
    1695.4×
  15. 15Sevlievolow-cost sensorsGabrovo, Bulgaria
    1695.4×
  16. 16SalorTashkent Region, Uzbekistan
    1685.3×
  17. 17BeijingBeijing, China
    1665.1×
  18. 18Samut SakhonSamut Sakhon, Thailand
    1645.0×
  19. 19BoiseIdaho, United States
    1574.2×
  20. 20MumbaiMaharashtra, India
    1564.2×
  21. 21N'DjamenaN’Djaména, Chad
    1564.2×
  22. 22Kampalalow-cost sensorsCentral Region, Uganda
    1564.2×
  23. 23ZgierzŁódź Voivodeship, Poland
    1554.1×
  24. 23FredrikstadØstfold, Norway
    1554.1×
  25. 25RatchaburiRatchaburi, Thailand
    1544.0×
  26. 26Ban Samae DamBangkok, Thailand
    1544.0×
  27. 27Nong KhaemBangkok, Thailand
    1544.0×
  28. 28Khlong Sam WaBangkok, Thailand
    1533.9×
  29. 29Lat KrabangBangkok, Thailand
    1513.7×
  30. 30KościanGreater Poland, Poland
    1513.7×
  31. 31Khlong LuangPathum Thani, Thailand
    1513.7×
  32. 32Nakhon PathomNakhon Pathom, Thailand
    1503.7×
  33. 33WłocławekKujawsko-Pomorskie, Poland
    1473.6×
  34. 34Lak SiBangkok, Thailand
    1443.5×
  35. 35SukhothaiSukhothai, Thailand
    1443.5×
  36. 36Mueang NonthaburiNonthaburi, Thailand
    1433.5×
  37. 37Bang Bo DistrictSamut Prakan, Thailand
    1433.5×
  38. 37KutnoŁódź Voivodeship, Poland
    1433.5×
  39. 39KanchanaburiKanchanaburi, Thailand
    1423.5×
  40. 40PruszkówMazovia, Poland
    1423.5×
  41. 41AranyaprathetSa Kaeo, Thailand
    1413.4×
  42. 42Samut PrakanSamut Prakan, Thailand
    1393.4×
  43. 43Bueng KumBangkok, Thailand
    1383.4×
  44. 44Bang NaBangkok, Thailand
    1373.3×
  45. 44Khan Na YaoBangkok, Thailand
    1373.3×
  46. 46KigaliKigali, Rwanda
    1353.3×
  47. 46Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    1353.3×
  48. 48HyderabadTelangana, India
    1353.3×
  49. 49Phra PradaengSamut Prakan, Thailand
    1333.2×
  50. 50BangkokBangkok, Thailand
    1303.2×
  51. 51KaliszGreater Poland, Poland
    1293.1×
  52. 52BurgosCastille and León, Spain
    1293.1×
  53. 53MeridianIdaho, United States
    1283.1×
  54. 54Saphan SungBangkok, Thailand
    1283.1×
  55. 55GrajewoPodlasie, Poland
    1263.0×
  56. 56Sai MaiBangkok, Thailand
    1263.0×
  57. 57RuseRuse, Bulgaria
    1253.0×
  58. 58Bang KapiBangkok, Thailand
    1243.0×
  59. 59KavadarciKavadarci, North Macedonia
    1243.0×
  60. 60LegionowoMazovia, Poland
    1233.0×
  61. 61Kathmandulow-cost sensorsBagmati Province, Nepal
    1233.0×
  62. 62Laem ChabangChon Buri, Thailand
    1212.9×
  63. 63ŁaskŁódź Voivodeship, Poland
    1212.9×
  64. 64IlindenIlinden, North Macedonia
    1192.9×
  65. 64Suphan BuriSuphan Buri, Thailand
    1192.9×
  66. 64RayongRayong, Thailand
    1192.9×
  67. 67Sing BuriSing Buri, Thailand
    1182.8×
  68. 68Ban Khlong PrawetBangkok, Thailand
    1182.8×
  69. 69Spišská Nová VesKošice Region, Slovakia
    1172.8×
  70. 70Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1162.8×
  71. 70Hua HinPrachuap Khiri Khan, Thailand
    1162.8×
  72. 70DushanbeDushanbe, Tajikistan
    1162.8×
  73. 73PoznańGreater Poland, Poland
    1152.7×
  74. 74Nong ChokBangkok, Thailand
    1152.7×
  75. 74Chai NatChai Nat, Thailand
    1152.7×
  76. 74PłockMazovia, Poland
    1152.7×
  77. 77RadomskoŁódź Voivodeship, Poland
    1142.7×
  78. 78Ban ChangRayong, Thailand
    1132.7×
  79. 78LęborkPomerania, Poland
    1132.7×
  80. 78BydgoszczKujawsko-Pomorskie, Poland
    1132.7×
  81. 81SarpsborgØstfold, Norway
    1122.7×
  82. 82Nakhon RatchasimaNakhon Ratchasima, Thailand
    1112.6×
  83. 83DębicaSubcarpathia, Poland
    1112.6×
  84. 84BiałystokPodlasie, Poland
    1092.6×
  85. 85ThessaloníkiCentral Macedonia, Greece
    1092.6×
  86. 85ŻyrardówMazovia, Poland
    1092.6×
  87. 87PułtuskMazovia, Poland
    1082.6×
  88. 88DejCluj County, Romania
    1082.6×
  89. 88OpoleOpole Voivodeship, Poland
    1082.6×
  90. 90Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1082.5×
  91. 91YangonYangon, Myanmar
    1072.5×
  92. 92Gorzów WielkopolskiLubusz, Poland
    1062.5×
  93. 93Nakhon SawanNakhon Sawan, Thailand
    1062.5×
  94. 94ZnojmoSouth Moravian, Czechia
    1052.5×
  95. 95KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1042.5×
  96. 96OlsztynWarmia-Masuria, Poland
    1042.4×
  97. 96ToruńKujawsko-Pomorskie, Poland
    1042.4×
  98. 98ShenyangLiaoning, China
    1032.4×
  99. 98ŁódźŁódź Voivodeship, Poland
    1032.4×
  100. 100Cluj-NapocaCluj County, Romania
    1032.4×
  101. 100RužomberokŽilina Region, Slovakia
    1032.4×
  102. 102CraiovaDolj, Romania
    1022.4×
  103. 103AlessandriaPiedmont, Italy
    1022.4×
  104. 104LimaLima Province, Peru
    1012.4×
  105. 105WawerMazovia, Poland
    1002.4×
  106. 106PljevljaPljevlja, Montenegro
    1002.3×
  107. 107VolosThessaly, Greece
    992.3×
  108. 108ColomboWestern Province, Sri Lanka
    992.3×
  109. 109WarsawMazovia, Poland
    982.3×
  110. 110AthensAttica, Greece
    982.3×
  111. 110Mae SotTak, Thailand
    982.3×
  112. 112GuangzhouGuangdong, China
    982.3×
  113. 112Kansas CityKansas, United States
    982.3×
  114. 114KościerzynaPomerania, Poland
    972.3×
  115. 114SarajevoFederation of B&H, Bosnia and Herzegovina
    972.3×
  116. 116DrammenBuskerud, Norway
    972.3×
  117. 117OtwockMazovia, Poland
    962.2×
  118. 118ChennaiTamil Nadu, India
    962.2×
  119. 119CelayaGuanajuato, Mexico
    962.2×
  120. 120ElblągWarmia-Masuria, Poland
    952.2×
  121. 121LampangLampang, Thailand
    942.2×
  122. 122WolfsbergCarinthia, Austria
    942.1×
  123. 123Haskovolow-cost sensorsHaskovo, Bulgaria
    942.1×
  124. 123PhichitPhichit, Thailand
    942.1×
  125. 125CallaoCallao, Peru
    932.1×
  126. 126SiedlceMazovia, Poland
    932.1×
  127. 127KalasinKalasin, Thailand
    922.1×
  128. 127NeuwiedRheinland-Pfalz, Germany
    922.1×
  129. 129WittenbergSaxony-Anhalt, Germany
    922.1×
  130. 130RadomMazovia, Poland
    922.1×
  131. 131RacibórzSilesia, Poland
    922.1×
  132. 131Jastrzębie ZdrójSilesia, Poland
    922.1×
  133. 133EupenWallonia, Belgium
    912.1×
  134. 134ŁukówLublin, Poland
    912.0×
  135. 134BolzanoTrentino-Alto Adige, Italy
    912.0×
  136. 136Konstancin-JeziornaMazovia, Poland
    912.0×
  137. 137LinzUpper Austria, Austria
    902.0×
  138. 138Addis AbabaAddis Ababa, Ethiopia
    902.0×
  139. 138Santa Anita - Los FicusLima region, Peru
    902.0×
  140. 140UttaraditUttaradit, Thailand
    892.0×
  141. 141TraunUpper Austria, Austria
    892.0×
  142. 142KoblenzRheinland-Pfalz, Germany
    892.0×
  143. 143LiègeWallonia, Belgium
    892.0×
  144. 143Banská BystricaBanská Bystrica Region, Slovakia
    892.0×
  145. 145ŚwiecieKujawsko-Pomorskie, Poland
    881.9×
  146. 146AnsfeldenUpper Austria, Austria
    881.9×
  147. 147Bitterfeld-WolfenSaxony-Anhalt, Germany
    881.9×
  148. 148Khon KaenKhon Kaen, Thailand
    871.9×
  149. 148Silao de la VictoriaGuanajuato, Mexico
    871.9×
  150. 150KasaokaOkayama, Japan
    871.9×
  151. 151KatowiceSilesia, Poland
    871.9×
  152. 152KrakówLesser Poland, Poland
    871.9×
  153. 153PhayaoPhayao, Thailand
    861.9×
  154. 153LüdenscheidNorth Rhine-Westphalia, Germany
    861.9×
  155. 153KasselHesse, Germany
    861.9×
  156. 153RoveretoTrentino-Alto Adige, Italy
    861.9×
  157. 157KlosterneuburgLower Austria, Austria
    861.9×
  158. 157BorgomaneroPiedmont, Italy
    861.9×
  159. 159HanoiHanoi, Vietnam
    861.9×
  160. 159LillestrømAkershus, Norway
    861.9×
  161. 161TratTrat, Thailand
    861.8×
  162. 162RanongRanong province, Thailand
    851.8×
  163. 162LoeiLoei, Thailand
    851.8×
  164. 162YachimataChiba, Japan
    851.8×
  165. 165SkopjeGrad Skopje, North Macedonia
    851.8×
  166. 166YasothonYasothon, Thailand
    851.8×
  167. 167Ubon RatchathaniUbon Ratchathani, Thailand
    851.8×
  168. 167FukuyamaHiroshima, Japan
    851.8×
  169. 169ChanthaburiChanthaburi, Thailand
    851.8×
  170. 169TeltowBrandenburg, Germany
    851.8×
  171. 171CalgaryAlberta, Canada
    841.8×
  172. 172YokoshibaChiba, Japan
    841.8×
  173. 173PhraePhrae, Thailand
    841.8×
  174. 173GrazStyria, Austria
    841.8×
  175. 173NeuenhagenBrandenburg, Germany
    841.8×
  176. 176HavířovMoravian-Silesian Region, Czechia
    841.8×
  177. 177TrentoTrentino-Alto Adige, Italy
    841.8×
  178. 178UnnaNorth Rhine-Westphalia, Germany
    831.8×
  179. 178ŽilinaŽilina Region, Slovakia
    831.8×
  180. 178BrnoSouth Moravian, Czechia
    831.8×
  181. 181PiraeusAttica, Greece
    831.8×
  182. 181JülichNorth Rhine-Westphalia, Germany
    831.8×
  183. 183AndenneWallonia, Belgium
    831.7×
  184. 184YotsukaidōChiba, Japan
    831.7×
  185. 185PančevoVojvodina, Serbia
    821.7×
  186. 186StarachowiceŚwiętokrzyskie, Poland
    821.7×
  187. 186Klagenfurt am WörtherseeCarinthia, Austria
    821.7×
  188. 188Buri RamBuriram, Thailand
    821.7×
  189. 188Halle (Saale)Saxony-Anhalt, Germany
    821.7×
  190. 190WrocławLower Silesia, Poland
    821.7×
  191. 191Şabāḩ as SālimMubārak al Kabīr, Kuwait
    821.7×
  192. 191Marche-en-FamenneWallonia, Belgium
    821.7×
  193. 193JarosławSubcarpathia, Poland
    821.7×
  194. 193LeverkusenNorth Rhine-Westphalia, Germany
    821.7×
  195. 193BergheimNorth Rhine-Westphalia, Germany
    821.7×
  196. 196Bernau bei BerlinBrandenburg, Germany
    811.7×
  197. 196VeszprémVeszprém, Hungary
    811.7×
  198. 198Mae SaiChiang Rai, Thailand
    811.7×
  199. 198BerounCentral Bohemia, Czechia
    811.7×
  200. 200BerlinState of Berlin, Germany
    811.7×

Top 200 of 2,062 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 18, 2024, smogrank.com/history/2024-01-18 (accessed 3 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.