SmogRank / History / February 15, 2023

Most polluted cities on February 15, 2023

1,281 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 489.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during February 15, 2023. All episodes.

← N'Djamena 489.0 µg/m³ 400 µg/m³15 WHO 24-hour guideline
Every city ranked for February 15, 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. 1N'DjamenaN’Djaména, Chad
    500+32.6×
  2. 2LampangLampang, Thailand
    25712.1×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    22710.1×
  4. 4Lahorelow-cost sensorsPunjab, Pakistan
    2209.7×
  5. 5PhayaoPhayao, Thailand
    2119.1×
  6. 6Ban HouakhouaBokeo, Laos
    2058.7×
  7. 7LamphunLamphun, Thailand
    1998.3×
  8. 8TakTak, Thailand
    1856.9×
  9. 9SukhothaiSukhothai, Thailand
    1846.9×
  10. 10Chiang RaiChiang Rai, Thailand
    1816.5×
  11. 11Mae SaiChiang Rai, Thailand
    1786.3×
  12. 12PhraePhrae, Thailand
    1776.2×
  13. 13Abujalow-cost sensorsFCT, Nigeria
    1776.1×
  14. 14Kamphaeng PhetKamphaeng Phet, Thailand
    1766.1×
  15. 15DelhiDelhi, India
    1766.1×
  16. 16Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1756.0×
  17. 17Chiang MaiChiang Mai, Thailand
    1745.9×
  18. 18Mae SotTak, Thailand
    1745.9×
  19. 19MumbaiMaharashtra, India
    1685.3×
  20. 20ConakryConakry, Guinea
    1675.2×
  21. 21HyderabadTelangana, India
    1675.2×
  22. 22Karachilow-cost sensorsSindh, Pakistan
    1655.0×
  23. 23Islamabadlow-cost sensorsIslamabad, Pakistan
    1634.9×
  24. 23Banja LukaSrpska, Bosnia and Herzegovina
    1634.9×
  25. 25BamakoBamako, Mali
    1634.8×
  26. 26DushanbeDushanbe, Tajikistan
    1614.7×
  27. 27Almatylow-cost sensorsAlmaty, Kazakhstan
    1584.3×
  28. 27AnconaThe Marches, Italy
    1584.3×
  29. 29EvergemFlanders, Belgium
    1564.2×
  30. 30Bielsko-BialaSilesia, Poland
    1564.2×
  31. 31RoeselareFlanders, Belgium
    1554.1×
  32. 32IzegemFlanders, Belgium
    1523.8×
  33. 33UttaraditUttaradit, Thailand
    1523.8×
  34. 34Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    1523.8×
  35. 34ParisÎle-de-France, France
    1523.8×
  36. 36Botevgradlow-cost sensorsSofia, Bulgaria
    1523.8×
  37. 36LublinLublin, Poland
    1523.8×
  38. 38YangonYangon, Myanmar
    1513.7×
  39. 39PristinaPristina, Kosovo
    1503.7×
  40. 40KigaliKigali, Rwanda
    1493.7×
  41. 41MiędzyrzeczLubusz, Poland
    1483.6×
  42. 42RoubaixHauts-de-France, France
    1473.6×
  43. 43MenenFlanders, Belgium
    1463.6×
  44. 44KhartoumKhartoum, Sudan
    1453.6×
  45. 45RouenNormandy, France
    1453.5×
  46. 46PoznańGreater Poland, Poland
    1443.5×
  47. 47GentFlanders, Belgium
    1443.5×
  48. 48Sainte-Geneviève-des-BoisÎle-de-France, France
    1443.5×
  49. 49PesaroThe Marches, Italy
    1433.5×
  50. 50Kathmandulow-cost sensorsBagmati Province, Nepal
    1403.4×
  51. 51AlexandriaAlexandria, Egypt
    1403.4×
  52. 51MaldegemFlanders, Belgium
    1403.4×
  53. 53DouaiHauts-de-France, France
    1383.4×
  54. 54BeauvaisHauts-de-France, France
    1373.3×
  55. 55BeverenFlanders, Belgium
    1363.3×
  56. 56LoeiLoei, Thailand
    1353.3×
  57. 57KortrijkFlanders, Belgium
    1353.3×
  58. 57AntwerpFlanders, Belgium
    1353.3×
  59. 59LochristiFlanders, Belgium
    1343.3×
  60. 60NišCentral Serbia, Serbia
    1333.2×
  61. 61JesiThe Marches, Italy
    1333.2×
  62. 62ZaanstadNorth Holland, The Netherlands
    1323.2×
  63. 62MonsWallonia, Belgium
    1323.2×
  64. 62Jelenia GóraLower Silesia, Poland
    1323.2×
  65. 65RuseRuse, Bulgaria
    1323.2×
  66. 65Canvey IslandEngland, United Kingdom
    1323.2×
  67. 67Haskovolow-cost sensorsHaskovo, Bulgaria
    1313.2×
  68. 67BelgradeCentral Serbia, Serbia
    1313.2×
  69. 69BéthuneHauts-de-France, France
    1303.2×
  70. 70PhetchabunPhetchabun, Thailand
    1293.1×
  71. 71DunkirkHauts-de-France, France
    1293.1×
  72. 72ValenciennesHauts-de-France, France
    1293.1×
  73. 72AlessandriaPiedmont, Italy
    1293.1×
  74. 74KapellenFlanders, Belgium
    1283.1×
  75. 74GuadalajaraJalisco, Mexico
    1283.1×
  76. 76Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1273.1×
  77. 76WillebroekFlanders, Belgium
    1273.1×
  78. 76TlaquepaqueJalisco, Mexico
    1273.1×
  79. 79KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1263.1×
  80. 80ColomboWestern Province, Sri Lanka
    1263.0×
  81. 81The HagueSouth Holland, The Netherlands
    1263.0×
  82. 82StarachowiceŚwiętokrzyskie, Poland
    1253.0×
  83. 82RotterdamSouth Holland, The Netherlands
    1253.0×
  84. 84TournaiWallonia, Belgium
    1243.0×
  85. 84ToruńKujawsko-Pomorskie, Poland
    1243.0×
  86. 86Jastrzębie ZdrójSilesia, Poland
    1243.0×
  87. 87Ciudad Benito JuárezNuevo León, Mexico
    1243.0×
  88. 88RidderkerkSouth Holland, The Netherlands
    1243.0×
  89. 89BadhoevedorpNorth Holland, The Netherlands
    1233.0×
  90. 90PhichitPhichit, Thailand
    1233.0×
  91. 90TurinPiedmont, Italy
    1233.0×
  92. 92BucharestBucharest, Romania
    1222.9×
  93. 93Nakhon SawanNakhon Sawan, Thailand
    1222.9×
  94. 93LeedsEngland, United Kingdom
    1222.9×
  95. 95Gorzów WielkopolskiLubusz, Poland
    1212.9×
  96. 96ŚwiecieKujawsko-Pomorskie, Poland
    1212.9×
  97. 97HanoiHanoi, Vietnam
    1212.9×
  98. 97ZwijndrechtFlanders, Belgium
    1212.9×
  99. 99RužomberokŽilina Region, Slovakia
    1212.9×
  100. 100StabroekFlanders, Belgium
    1202.9×
  101. 100SzczecinWest Pomerania, Poland
    1202.9×
  102. 102AnnemasseAuvergne-Rhône-Alpes, France
    1202.9×
  103. 102RacibórzSilesia, Poland
    1202.9×
  104. 104NiskoSubcarpathia, Poland
    1192.9×
  105. 105Velsen-ZuidNorth Holland, The Netherlands
    1192.9×
  106. 106Nong Bua LamphuNong Bua Lamphu, Thailand
    1182.8×
  107. 107RambouilletÎle-de-France, France
    1182.8×
  108. 108AmsterdamNorth Holland, The Netherlands
    1172.8×
  109. 109NottinghamEngland, United Kingdom
    1172.8×
  110. 109MelunÎle-de-France, France
    1172.8×
  111. 111San Mateo AtencoMéxico, Mexico
    1172.8×
  112. 112KoksijdeFlanders, Belgium
    1172.8×
  113. 113Joué-lès-ToursCentre-Val de Loire, France
    1162.8×
  114. 114Falconara MarittimaThe Marches, Italy
    1152.8×
  115. 115Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    1152.7×
  116. 115Lop BuriLopburi, Thailand
    1152.7×
  117. 115ÉvreuxNormandy, France
    1152.7×
  118. 118ChartresCentre-Val de Loire, France
    1152.7×
  119. 119Yerevanlow-cost sensorsYerevan, Armenia
    1142.7×
  120. 120ZamośćLublin, Poland
    1132.7×
  121. 121MartinŽilina Region, Slovakia
    1132.7×
  122. 122Saint-QuentinHauts-de-France, France
    1122.7×
  123. 123Accralow-cost sensorsGreater Accra, Ghana
    1122.7×
  124. 123AarschotFlanders, Belgium
    1122.7×
  125. 125BydgoszczKujawsko-Pomorskie, Poland
    1112.6×
  126. 126AlençonNormandy, France
    1112.6×
  127. 127SalorTashkent Region, Uzbekistan
    1112.6×
  128. 128ÉpernayGrand Est, France
    1102.6×
  129. 128KutnoŁódź Voivodeship, Poland
    1102.6×
  130. 130Nakhon RatchasimaNakhon Ratchasima, Thailand
    1102.6×
  131. 130Chalon-sur-SaôneBourgogne-Franche-Comté, France
    1102.6×
  132. 132CanterburyEngland, United Kingdom
    1092.6×
  133. 133ReadingEngland, United Kingdom
    1092.6×
  134. 133PurmerendNorth Holland, The Netherlands
    1092.6×
  135. 135BredaNorth Brabant, The Netherlands
    1082.6×
  136. 136PortsmouthEngland, United Kingdom
    1082.6×
  137. 137Spišská Nová VesKošice Region, Slovakia
    1082.6×
  138. 137HayesEngland, United Kingdom
    1082.6×
  139. 139Ciudad ApodacaNuevo León, Mexico
    1082.5×
  140. 140Sing BuriSing Buri, Thailand
    1072.5×
  141. 141Sevlievolow-cost sensorsGabrovo, Bulgaria
    1072.5×
  142. 141BexleyEngland, United Kingdom
    1072.5×
  143. 143DieppeNormandy, France
    1072.5×
  144. 143WłocławekKujawsko-Pomorskie, Poland
    1072.5×
  145. 145Sakon NakhonSakon Nakhon, Thailand
    1072.5×
  146. 146Suphan BuriSuphan Buri, Thailand
    1062.5×
  147. 146BrusselsBrussels Capital, Belgium
    1062.5×
  148. 146Le HavreNormandy, France
    1062.5×
  149. 149CharleroiWallonia, Belgium
    1052.5×
  150. 150SouthamptonEngland, United Kingdom
    1052.5×
  151. 151Bang NaBangkok, Thailand
    1052.5×
  152. 152VerdunGrand Est, France
    1042.5×
  153. 153ChâteaurouxCentre-Val de Loire, France
    1042.5×
  154. 154Ubon RatchathaniUbon Ratchathani, Thailand
    1042.4×
  155. 154Kingston upon HullEngland, United Kingdom
    1042.4×
  156. 154Clacton-on-SeaEngland, United Kingdom
    1042.4×
  157. 157ŁukówLublin, Poland
    1032.4×
  158. 157NorwichEngland, United Kingdom
    1032.4×
  159. 159LisieuxNormandy, France
    1022.4×
  160. 159ÉtampesÎle-de-France, France
    1022.4×
  161. 161BohumínMoravian-Silesian Region, Czechia
    1022.4×
  162. 162HillegomSouth Holland, The Netherlands
    1022.4×
  163. 163WrocławLower Silesia, Poland
    1022.4×
  164. 163KłodzkoLower Silesia, Poland
    1022.4×
  165. 165GdyniaPomerania, Poland
    1012.4×
  166. 166Gabrovolow-cost sensorsGabrovo, Bulgaria
    1002.4×
  167. 166Southend-on-SeaEngland, United Kingdom
    1002.4×
  168. 168LęborkPomerania, Poland
    1002.4×
  169. 169AmiensHauts-de-France, France
    1002.3×
  170. 170NewmarketEngland, United Kingdom
    992.3×
  171. 170TroyesGrand Est, France
    992.3×
  172. 170ToursCentre-Val de Loire, France
    992.3×
  173. 173Bang Bo DistrictSamut Prakan, Thailand
    992.3×
  174. 174Banská BystricaBanská Bystrica Region, Slovakia
    992.3×
  175. 175UtrechtUtrecht, The Netherlands
    992.3×
  176. 176Zielona GóraLubusz, Poland
    982.3×
  177. 177AranyaprathetSa Kaeo, Thailand
    982.3×
  178. 177Frýdek-MístekMoravian-Silesian Region, Czechia
    982.3×
  179. 177Khlong Sam WaBangkok, Thailand
    982.3×
  180. 180KanchanaburiKanchanaburi, Thailand
    982.3×
  181. 180ChaiyaphumChaiyaphum, Thailand
    982.3×
  182. 180MolFlanders, Belgium
    982.3×
  183. 180Mladá BoleslavCentral Bohemia, Czechia
    982.3×
  184. 184RatchaburiRatchaburi, Thailand
    972.3×
  185. 184BourgesCentre-Val de Loire, France
    972.3×
  186. 186RadomMazovia, Poland
    972.3×
  187. 186DreuxCentre-Val de Loire, France
    972.3×
  188. 186TrenčínTrenčín Region, Slovakia
    972.3×
  189. 189VolosThessaly, Greece
    972.3×
  190. 189Le MansPays de la Loire, France
    972.3×
  191. 191Si Maha PhotPrachin Buri, Thailand
    972.2×
  192. 191MedemblikNorth Holland, The Netherlands
    972.2×
  193. 193KrapkowiceOpole Voivodeship, Poland
    972.2×
  194. 194Ga-RankuwaNorth West, South Africa
    962.2×
  195. 194BogotáBogota D.C., Colombia
    962.2×
  196. 196AthensAttica, Greece
    962.2×
  197. 196KošiceKošice Region, Slovakia
    962.2×
  198. 196Stoke-on-TrentEngland, United Kingdom
    962.2×
  199. 199Khlong LuangPathum Thani, Thailand
    962.2×
  200. 199SheffieldEngland, United Kingdom
    962.2×

Top 200 of 1,281 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, February 15, 2023, smogrank.com/history/2023-02-15 (accessed 2 Oct 2026).

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