SmogRank / History / February 4, 2026

Most polluted cities on February 4, 2026

2,267 cities ranked by their average PM2.5 over the day; the worst was Faisalabad, Pakistan, at 219.0 µg/m³. Each city's own local calendar day.

  1. 1Faisalabadlow-cost sensorsPunjab, Pakistan
    219.014.6×
  2. 2DelhiDelhi, India
    189.012.6×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    151.010.1×
  4. 4Bahawalpurlow-cost sensorsPunjab, Pakistan
    149.09.9×
  5. 5Multanlow-cost sensorsPunjab, Pakistan
    141.59.4×
  6. 6ŻywiecSilesia, Poland
    134.08.9×
  7. 7Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    132.58.8×
  8. 8Gujranwalalow-cost sensorsPunjab, Pakistan
    131.58.8×
  9. 9Changchunlow-cost sensorsJilin, China
    99.56.6×
  10. 10HyderabadTelangana, India
    95.06.3×
  11. 11RēzekneRēzekne, Latvia
    90.16.0×
  12. 12Hyderabadlow-cost sensorsSindh, Pakistan
    89.96.0×
  13. 13TřinecMoravian-Silesian Region, Czechia
    88.35.9×
  14. 14Bielsko-BialaSilesia, Poland
    88.25.9×
  15. 15Kathmandulow-cost sensorsBagmati Province, Nepal
    86.75.8×
  16. 16Banja LukaSrpska, Bosnia and Herzegovina
    82.45.5×
  17. 17KłodzkoLower Silesia, Poland
    82.15.5×
  18. 18Târgu Mureşlow-cost sensorsMureș County, Romania
    80.95.4×
  19. 19Frýdek-MístekMoravian-Silesian Region, Czechia
    80.25.3×
  20. 20Rawalpindilow-cost sensorsPunjab, Pakistan
    79.75.3×
  21. 21Český TěšínMoravian-Silesian Region, Czechia
    77.45.2×
  22. 22Valašské MeziříčíZlín, Czechia
    77.05.1×
  23. 23Sialkotlow-cost sensorsPunjab, Pakistan
    71.94.8×
  24. 24OstravaMoravian-Silesian Region, Czechia
    71.64.8×
  25. 25ŻaryLubusz, Poland
    70.34.7×
  26. 26Karachilow-cost sensorsSindh, Pakistan
    69.44.6×
  27. 27HavířovMoravian-Silesian Region, Czechia
    68.04.5×
  28. 28Talgharlow-cost sensorsAlmaty Region, Kazakhstan
    67.74.5×
  29. 29KaliszGreater Poland, Poland
    66.94.5×
  30. 30KarvináMoravian-Silesian Region, Czechia
    66.54.4×
  31. 31HraniceOlomouc Region, Czechia
    66.24.4×
  32. 32Jastrzębie ZdrójSilesia, Poland
    65.34.4×
  33. 33GostivarGostivar, North Macedonia
    64.14.3×
  34. 34SrinagarJammu and Kashmir, India
    64.04.3×
  35. 35OlomoucOlomouc Region, Czechia
    62.24.1×
  36. 36WrocławLower Silesia, Poland
    60.74.0×
  37. 37Gorzów WielkopolskiLubusz, Poland
    59.03.9×
  38. 38PřerovOlomouc Region, Czechia
    58.23.9×
  39. 39BernburgSaxony-Anhalt, Germany
    58.03.9×
  40. 40Vientianelow-cost sensorsVientiane Prefecture, Laos
    57.83.9×
  41. 41Zielona GóraLubusz, Poland
    57.63.8×
  42. 42Czechowice-DziedziceSilesia, Poland
    57.43.8×
  43. 43TarnówLesser Poland, Poland
    56.73.8×
  44. 44Islamabadlow-cost sensorsIslamabad, Pakistan
    55.73.7×
  45. 45OpoleOpole Voivodeship, Poland
    54.73.6×
  46. 46RuseRuse, Bulgaria
    54.13.6×
  47. 47RacibórzSilesia, Poland
    54.03.6×
  48. 48WeißenfelsSaxony-Anhalt, Germany
    53.03.5×
  49. 49DessauSaxony-Anhalt, Germany
    52.73.5×
  50. 50Jelenia GóraLower Silesia, Poland
    52.63.5×
  51. 51Ashaimanlow-cost sensorsGreater Accra, Ghana
    52.13.5×
  52. 51MerseburgSaxony-Anhalt, Germany
    52.13.5×
  53. 51HalberstadtSaxony-Anhalt, Germany
    52.13.5×
  54. 54Kędzierzyn-KoźleOpole Voivodeship, Poland
    52.03.5×
  55. 55ZeitzSaxony-Anhalt, Germany
    51.53.4×
  56. 56KrakówLesser Poland, Poland
    51.43.4×
  57. 57KardítsaThessaly, Greece
    51.03.4×
  58. 57Brikamalow-cost sensorsWestern, Gambia
    51.03.4×
  59. 57ŁaskŁódź Voivodeship, Poland
    51.03.4×
  60. 60Burg bei MagdeburgSaxony-Anhalt, Germany
    50.53.4×
  61. 60Tularelow-cost sensorsCalifornia, United States
    50.53.4×
  62. 62Halle (Saale)Saxony-Anhalt, Germany
    50.23.3×
  63. 63WittenbergSaxony-Anhalt, Germany
    50.13.3×
  64. 64CottbusBrandenburg, Germany
    49.83.3×
  65. 64Delanolow-cost sensorsCalifornia, United States
    49.83.3×
  66. 66PoznańGreater Poland, Poland
    49.13.3×
  67. 67Burundaylow-cost sensorsAlmaty Region, Kazakhstan
    49.03.3×
  68. 68MagdeburgSaxony-Anhalt, Germany
    48.93.3×
  69. 69DębicaSubcarpathia, Poland
    48.83.3×
  70. 69Temalow-cost sensorsGreater Accra, Ghana
    48.83.3×
  71. 69MühlhausenThuringia, Germany
    48.83.3×
  72. 69EisenhüttenstadtBrandenburg, Germany
    48.83.3×
  73. 73LubnjowBrandenburg, Germany
    48.53.2×
  74. 74Phuntsholinglow-cost sensorsChukha, Bhutan
    48.33.2×
  75. 75WernigerodeSaxony-Anhalt, Germany
    48.23.2×
  76. 76RzeszówSubcarpathia, Poland
    47.93.2×
  77. 77Kampalalow-cost sensorsCentral Region, Uganda
    47.63.2×
  78. 77GevgelijaGevgelija, North Macedonia
    47.63.2×
  79. 77RadomskoŁódź Voivodeship, Poland
    47.63.2×
  80. 80DejCluj County, Romania
    47.53.2×
  81. 81Piatra NeamţNeamț County, Romania
    47.33.2×
  82. 81Stodůlkylow-cost sensorsPrague, Czechia
    47.33.2×
  83. 83Almatylow-cost sensorsAlmaty, Kazakhstan
    47.13.1×
  84. 84BrzegOpole Voivodeship, Poland
    46.83.1×
  85. 85WeimarThuringia, Germany
    46.63.1×
  86. 86Bitterfeld-WolfenSaxony-Anhalt, Germany
    46.53.1×
  87. 86Zagreblow-cost sensorsZagreb, Croatia
    46.53.1×
  88. 88PiteştiArges, Romania
    46.43.1×
  89. 89TravnikFederation of B&H, Bosnia and Herzegovina
    46.33.1×
  90. 90VilniusVilnius, Lithuania
    45.83.1×
  91. 90GoslarLower Saxony, Germany
    45.83.1×
  92. 90ErfurtThuringia, Germany
    45.83.1×
  93. 93CraiovaDolj, Romania
    45.73.0×
  94. 93HildesheimLower Saxony, Germany
    45.73.0×
  95. 95KavadarciKavadarci, North Macedonia
    45.03.0×
  96. 95LuckenwaldeBrandenburg, Germany
    45.03.0×
  97. 97Otegen Batyralow-cost sensorsAlmaty Region, Kazakhstan
    44.22.9×
  98. 98TríkalaThessaly, Greece
    44.02.9×
  99. 99ŁódźŁódź Voivodeship, Poland
    43.72.9×
  100. 100BraunschweigLower Saxony, Germany
    43.32.9×
  101. 101San Pawl il-BaħarSaint Paul’s Bay, Malta
    43.22.9×
  102. 102KöthenSaxony-Anhalt, Germany
    42.82.9×
  103. 103Quettalow-cost sensorsBalochistan, Pakistan
    42.52.8×
  104. 104HannoverLower Saxony, Germany
    41.82.8×
  105. 105Königs WusterhausenBrandenburg, Germany
    41.42.8×
  106. 106Haarlemlow-cost sensorsNorth Holland, The Netherlands
    41.32.8×
  107. 107WłocławekKujawsko-Pomorskie, Poland
    40.92.7×
  108. 108DouliuTaiwan, Taiwan
    40.82.7×
  109. 108TeltowBrandenburg, Germany
    40.82.7×
  110. 108Blankenfelde-MahlowBrandenburg, Germany
    40.82.7×
  111. 111NordhausenThuringia, Germany
    40.72.7×
  112. 111BerlinState of Berlin, Germany
    40.72.7×
  113. 111ZgierzŁódź Voivodeship, Poland
    40.72.7×
  114. 114Brandenburg an der HavelBrandenburg, Germany
    40.42.7×
  115. 115Lagoslow-cost sensorsLagos, Nigeria
    40.32.7×
  116. 115StendalSaxony-Anhalt, Germany
    40.32.7×
  117. 115Frankfurt (Oder)Brandenburg, Germany
    40.32.7×
  118. 118EisenachThuringia, Germany
    40.12.7×
  119. 119CalafatDolj, Romania
    40.02.7×
  120. 119Říčanylow-cost sensorsCentral Bohemia, Czechia
    40.02.7×
  121. 121OtwockMazovia, Poland
    39.82.7×
  122. 122PotsdamBrandenburg, Germany
    39.42.6×
  123. 123JenaThuringia, Germany
    39.32.6×
  124. 123GeraThuringia, Germany
    39.32.6×
  125. 125OranienburgBrandenburg, Germany
    39.12.6×
  126. 126Quezon Citylow-cost sensorsNational Capital Region, Philippines
    38.82.6×
  127. 126Sukutalow-cost sensorsWestern, Gambia
    38.82.6×
  128. 126GroningenGroningen, The Netherlands
    38.82.6×
  129. 129PodgoricaPodgorica, Montenegro
    38.72.6×
  130. 130WolfsburgLower Saxony, Germany
    38.62.6×
  131. 130RintelnLower Saxony, Germany
    38.62.6×
  132. 132Khlong Luanglow-cost sensorsPathum Thani, Thailand
    38.42.6×
  133. 133KatowiceSilesia, Poland
    38.32.6×
  134. 134StarachowiceŚwiętokrzyskie, Poland
    38.22.5×
  135. 135Vereeniginglow-cost sensorsGauteng, South Africa
    37.92.5×
  136. 136AltenburgThuringia, Germany
    37.62.5×
  137. 137NauenBrandenburg, Germany
    37.52.5×
  138. 137TlaquepaqueJalisco, Mexico
    37.52.5×
  139. 139Dubailow-cost sensorsDubai, United Arab Emirates
    37.22.5×
  140. 139SondershausenThuringia, Germany
    37.22.5×
  141. 139FalkenseeBrandenburg, Germany
    37.22.5×
  142. 142Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    37.12.5×
  143. 142IlindenIlinden, North Macedonia
    37.12.5×
  144. 144PrzemyślSubcarpathia, Poland
    37.02.5×
  145. 144KumanovoKumanovo, North Macedonia
    37.02.5×
  146. 144OsnabrückLower Saxony, Germany
    37.02.5×
  147. 144FriesoytheLower Saxony, Germany
    37.02.5×
  148. 148Ban Khlong Prawetlow-cost sensorsBangkok, Thailand
    36.92.5×
  149. 148ModestoCalifornia, United States
    36.92.5×
  150. 148Chrang Chamreh Muoylow-cost sensorsPhnom Penh, Cambodia
    36.92.5×
  151. 151MedemblikNorth Holland, The Netherlands
    36.72.4×
  152. 151NeubrandenburgMecklenburg-Vorpommern, Germany
    36.72.4×
  153. 153OldenburgLower Saxony, Germany
    36.52.4×
  154. 154StrausbergBrandenburg, Germany
    36.42.4×
  155. 155FengshanTakao, Taiwan
    36.12.4×
  156. 156Dimitrovgradlow-cost sensorsHaskovo, Bulgaria
    36.02.4×
  157. 156RadomMazovia, Poland
    36.02.4×
  158. 156WalsrodeLower Saxony, Germany
    36.02.4×
  159. 156LingenLower Saxony, Germany
    36.02.4×
  160. 160PrilepPrilep, North Macedonia
    35.72.4×
  161. 160TainanTaiwan, Taiwan
    35.72.4×
  162. 160VallettaValletta, Malta
    35.72.4×
  163. 163NiskoSubcarpathia, Poland
    35.62.4×
  164. 163Chiayi CityTaiwan, Taiwan
    35.62.4×
  165. 163Bijelo PoljeBijelo Polje, Montenegro
    35.62.4×
  166. 163Sai Mailow-cost sensorsBangkok, Thailand
    35.62.4×
  167. 167OytenLower Saxony, Germany
    35.32.4×
  168. 168Bernau bei BerlinBrandenburg, Germany
    35.22.3×
  169. 169Baia MareMaramureş, Romania
    35.12.3×
  170. 169Schwedt (Oder)Brandenburg, Germany
    35.12.3×
  171. 171Bangkoklow-cost sensorsBangkok, Thailand
    35.02.3×
  172. 172San Luis PotosíSan Luis Potosí, Mexico
    34.82.3×
  173. 173KaohsiungTakao, Taiwan
    34.72.3×
  174. 173Tuen MunTuen Mun, Hong Kong
    34.72.3×
  175. 173MostaIl-Mosta, Malta
    34.72.3×
  176. 176BakersfieldCalifornia, United States
    34.62.3×
  177. 176L'Ancienne-LoretteQuebec, Canada
    34.62.3×
  178. 178Gabrovolow-cost sensorsGabrovo, Bulgaria
    34.52.3×
  179. 178ŻabbarĦaż-Żabbar, Malta
    34.52.3×
  180. 180DuderstadtLower Saxony, Germany
    34.42.3×
  181. 181SchwerinMecklenburg-Vorpommern, Germany
    34.22.3×
  182. 182YongkangTaiwan, Taiwan
    34.02.3×
  183. 183Sighetu MarmaţieiMaramureş, Romania
    33.92.3×
  184. 184MielecSubcarpathia, Poland
    33.82.3×
  185. 185ChaozhouTaiwan, Taiwan
    33.62.2×
  186. 186KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    33.52.2×
  187. 186EmdenLower Saxony, Germany
    33.52.2×
  188. 188StrumicaStrumica, North Macedonia
    33.32.2×
  189. 189GöttingenLower Saxony, Germany
    33.22.2×
  190. 190SzczecinWest Pomerania, Poland
    33.02.2×
  191. 191BremenBremen, Germany
    32.92.2×
  192. 191BogatyniaLower Silesia, Poland
    32.92.2×
  193. 191XonacatlánMéxico, Mexico
    32.92.2×
  194. 191FresnoCalifornia, United States
    32.92.2×
  195. 195DushanbeDushanbe, Tajikistan
    32.82.2×
  196. 195XinyingTaiwan, Taiwan
    32.82.2×
  197. 195KleinmachnowBrandenburg, Germany
    32.82.2×
  198. 195HamburgHamburg, Germany
    32.82.2×
  199. 195CuautlaMorelos, Mexico
    32.82.2×
  200. 200Haskovolow-cost sensorsHaskovo, Bulgaria
    32.72.2×

Top 200 of 2,267 shown.

Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+