SmogRank / History / January 1, 2024

Most polluted cities on January 1, 2024

1,742 cities ranked by their average PM2.5 over the day; the worst was Peshawar, Pakistan, at 266.0 µg/m³. Each city's own local calendar day.

← Peshawar 266.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for January 1, 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. 1Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    38217.7×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    34016.3×
  3. 3DelhiDelhi, India
    28614.1×
  4. 4Islamabadlow-cost sensorsIslamabad, Pakistan
    27213.1×
  5. 5Dhakalow-cost sensorsDhaka Division, Bangladesh
    25812.2×
  6. 6KolkataWest Bengal, India
    25011.7×
  7. 7Ulan BatorUlaanbaatar, Mongolia
    23410.6×
  8. 8SalamancaGuanajuato, Mexico
    2119.1×
  9. 9NogalesArizona, United States
    2109.0×
  10. 9BadgerAlaska, United States
    2109.0×
  11. 11San AntonioTexas, United States
    2048.6×
  12. 12TetovoTetovo, North Macedonia
    2028.5×
  13. 13Cadereyta JiménezNuevo León, Mexico
    1998.3×
  14. 14SkopjeGrad Skopje, North Macedonia
    1897.3×
  15. 15MumbaiMaharashtra, India
    1867.0×
  16. 16IrapuatoGuanajuato, Mexico
    1856.9×
  17. 17PhoenixArizona, United States
    1846.9×
  18. 18KavadarciKavadarci, North Macedonia
    1846.8×
  19. 19ShenyangLiaoning, China
    1826.6×
  20. 20Silao de la VictoriaGuanajuato, Mexico
    1816.6×
  21. 21HoustonTexas, United States
    1816.5×
  22. 22CelayaGuanajuato, Mexico
    1816.5×
  23. 23HyderabadTelangana, India
    1796.4×
  24. 24Ciudad ApodacaNuevo León, Mexico
    1776.1×
  25. 25ChennaiTamil Nadu, India
    1776.1×
  26. 26Karachilow-cost sensorsSindh, Pakistan
    1766.1×
  27. 27NogalesSonora, Mexico
    1766.0×
  28. 28VelesVeles, North Macedonia
    1756.0×
  29. 29PristinaPristina, Kosovo
    1745.9×
  30. 30Lagoslow-cost sensorsLagos, Nigeria
    1735.8×
  31. 31PueblaPuebla, Mexico
    1725.7×
  32. 32Ciudad Benito JuárezNuevo León, Mexico
    1725.7×
  33. 33Abujalow-cost sensorsFCT, Nigeria
    1715.6×
  34. 34BitolaBitola, North Macedonia
    1695.4×
  35. 35ReykjavíkCapital Region, Iceland
    1685.3×
  36. 36Almatylow-cost sensorsAlmaty, Kazakhstan
    1675.2×
  37. 37CasertaCampania, Italy
    1665.1×
  38. 38Haskovolow-cost sensorsHaskovo, Bulgaria
    1655.1×
  39. 39PasadenaTexas, United States
    1655.0×
  40. 40IlindenIlinden, North Macedonia
    1655.0×
  41. 41Missouri CityTexas, United States
    1624.8×
  42. 42VolosThessaly, Greece
    1614.7×
  43. 43GuangzhouGuangdong, China
    1604.6×
  44. 44CholulaPuebla, Mexico
    1604.6×
  45. 45Kathmandulow-cost sensorsBagmati Province, Nepal
    1594.5×
  46. 46ThessaloníkiCentral Macedonia, Greece
    1584.3×
  47. 47Mixquiahuala de JuárezHidalgo, Mexico
    1574.3×
  48. 48SalorTashkent Region, Uzbekistan
    1564.2×
  49. 49Santiago de QuerétaroQuerétaro, Mexico
    1554.1×
  50. 50BucharestBucharest, Romania
    1554.1×
  51. 51AthensAttica, Greece
    1544.0×
  52. 52NišCentral Serbia, Serbia
    1544.0×
  53. 53MiamiFlorida, United States
    1533.9×
  54. 54Cluj-NapocaCluj County, Romania
    1503.7×
  55. 55Mission BendTexas, United States
    1503.7×
  56. 56DejCluj County, Romania
    1483.6×
  57. 57Samut SakhonSamut Sakhon, Thailand
    1453.6×
  58. 58Quezon Citylow-cost sensorsNational Capital Region, Philippines
    1423.5×
  59. 59León de los AldamaGuanajuato, Mexico
    1413.5×
  60. 60VictoriaCentral and Western, Hong Kong
    1393.4×
  61. 61JakartaJakarta, Indonesia
    1383.4×
  62. 62Lake MaryFlorida, United States
    1383.4×
  63. 63TehuacánPuebla, Mexico
    1373.4×
  64. 64ManamaManama, Bahrain
    1373.3×
  65. 65RuseRuse, Bulgaria
    1363.3×
  66. 66KochaniKochani, North Macedonia
    1353.3×
  67. 67AbasoloGuanajuato, Mexico
    1343.3×
  68. 68YangonYangon, Myanmar
    1343.2×
  69. 68ManlleuCatalonia, Spain
    1343.2×
  70. 70Wan ChaiWan Chai, Hong Kong
    1333.2×
  71. 71PátraWest Greece, Greece
    1333.2×
  72. 72ColomboWestern Province, Sri Lanka
    1333.2×
  73. 73KigaliKigali, Rwanda
    1323.2×
  74. 74MurciaMurcia, Spain
    1323.2×
  75. 75MonterreyNuevo León, Mexico
    1313.2×
  76. 76WormsRheinland-Pfalz, Germany
    1313.2×
  77. 77Tuen MunTuen Mun, Hong Kong
    1263.0×
  78. 78Frýdek-MístekMoravian-Silesian Region, Czechia
    1263.0×
  79. 79ColumbusGeorgia, United States
    1253.0×
  80. 80GlendaleArizona, United States
    1253.0×
  81. 81Ciudad General EscobedoNuevo León, Mexico
    1243.0×
  82. 82Mong KokYau Tsim Mong District, Hong Kong
    1243.0×
  83. 83Nakhon PathomNakhon Pathom, Thailand
    1233.0×
  84. 83Banja LukaSrpska, Bosnia and Herzegovina
    1233.0×
  85. 85TampaFlorida, United States
    1222.9×
  86. 86Spišská Nová VesKošice Region, Slovakia
    1212.9×
  87. 87ChalmetteLouisiana, United States
    1212.9×
  88. 88Tsuen WanTsuen Wan, Hong Kong
    1172.8×
  89. 88MillcreekUtah, United States
    1172.8×
  90. 90Winter ParkFlorida, United States
    1172.8×
  91. 91Safety HarborFlorida, United States
    1172.8×
  92. 92Sau Mau PingKwun Tong District, Hong Kong
    1162.8×
  93. 93Deerfield BeachFlorida, United States
    1162.8×
  94. 94Tin Shui WaiYuen Long, Hong Kong
    1152.8×
  95. 94ŽilinaŽilina Region, Slovakia
    1152.8×
  96. 96Sham Shui PoSham Shui Po District, Hong Kong
    1142.7×
  97. 96Mollet del VallèsCatalonia, Spain
    1142.7×
  98. 98San Andrés TuxtlaVeracruz, Mexico
    1132.7×
  99. 99Tai PoTai Po, Hong Kong
    1132.7×
  100. 99Fort LauderdaleFlorida, United States
    1132.7×
  101. 101MostÚstí nad Labem Region, Czechia
    1122.7×
  102. 102MexicaliBaja California, Mexico
    1122.7×
  103. 103HomesteadFlorida, United States
    1112.6×
  104. 104Alto HospicioTarapacá, Chile
    1102.6×
  105. 104FairbanksAlaska, United States
    1102.6×
  106. 106TijuanaBaja California, Mexico
    1092.6×
  107. 107AcharnésAttica, Greece
    1082.6×
  108. 107Kwai ChungKwai Tsing District, Hong Kong
    1082.6×
  109. 109ValricoFlorida, United States
    1082.5×
  110. 110Zacatepec de HidalgoMorelos, Mexico
    1072.5×
  111. 111Mueang NonthaburiNonthaburi, Thailand
    1072.5×
  112. 112KahuluiHawaii, United States
    1062.5×
  113. 113Sha TinSha Tin, Hong Kong
    1062.5×
  114. 114CraiovaDolj, Romania
    1052.5×
  115. 114West JordanUtah, United States
    1052.5×
  116. 116ConroeTexas, United States
    1052.5×
  117. 117CórdobaAndalusia, Spain
    1042.4×
  118. 118PiraeusAttica, Greece
    1032.4×
  119. 119SevillaAndalusia, Spain
    1012.4×
  120. 119HafnarfjörðurCapital Region, Iceland
    1012.4×
  121. 121Salt Lake CityUtah, United States
    1012.4×
  122. 122SarajevoFederation of B&H, Bosnia and Herzegovina
    1002.4×
  123. 123NurembergBavaria, Germany
    1002.3×
  124. 124Tula de AllendeHidalgo, Mexico
    992.3×
  125. 125BailénAndalusia, Spain
    992.3×
  126. 126Gabrovolow-cost sensorsGabrovo, Bulgaria
    992.3×
  127. 126Nong KhaemBangkok, Thailand
    992.3×
  128. 126San Miguel de AllendeGuanajuato, Mexico
    992.3×
  129. 129ComptonCalifornia, United States
    982.3×
  130. 130TeltowBrandenburg, Germany
    972.3×
  131. 131CalamaAntofagasta, Chile
    962.2×
  132. 132LakelandFlorida, United States
    962.2×
  133. 133Khlong LuangPathum Thani, Thailand
    962.2×
  134. 134AmoraSetúbal, Portugal
    962.2×
  135. 135Coconut CreekFlorida, United States
    952.2×
  136. 136IaşiIași County, Romania
    952.2×
  137. 136BangkokBangkok, Thailand
    952.2×
  138. 138KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    942.1×
  139. 138TurinPiedmont, Italy
    942.1×
  140. 140New OrleansLouisiana, United States
    942.1×
  141. 141DěčínÚstí nad Labem Region, Czechia
    932.1×
  142. 142Bernau bei BerlinBrandenburg, Germany
    932.1×
  143. 143ZvolenBanská Bystrica Region, Slovakia
    932.1×
  144. 144MinatitlánVeracruz, Mexico
    922.1×
  145. 144East LakeFlorida, United States
    922.1×
  146. 146Tepeji del Río de OcampoHidalgo, Mexico
    922.1×
  147. 147NaplesCampania, Italy
    912.1×
  148. 148San Martin Texmelucan de LabastidaPuebla, Mexico
    912.0×
  149. 149AsprópyrgosAttica, Greece
    902.0×
  150. 149Şabāḩ as SālimMubārak al Kabīr, Kuwait
    902.0×
  151. 149TempeArizona, United States
    902.0×
  152. 152Samut PrakanSamut Prakan, Thailand
    902.0×
  153. 152FanlingNorth District, Hong Kong
    902.0×
  154. 152KópavogurCapital Region, Iceland
    902.0×
  155. 155CacémLisbon, Portugal
    892.0×
  156. 155HavířovMoravian-Silesian Region, Czechia
    892.0×
  157. 155BohumínMoravian-Silesian Region, Czechia
    892.0×
  158. 158Halle (Saale)Saxony-Anhalt, Germany
    892.0×
  159. 159OcalaFlorida, United States
    892.0×
  160. 160BeneventoCampania, Italy
    892.0×
  161. 160Santa CatarinaNuevo León, Mexico
    892.0×
  162. 160Las VegasNevada, United States
    892.0×
  163. 163PylaíaCentral Macedonia, Greece
    892.0×
  164. 163BakersfieldCalifornia, United States
    892.0×
  165. 165VeracruzVeracruz, Mexico
    881.9×
  166. 166TepliceÚstí nad Labem Region, Czechia
    881.9×
  167. 167BoiseIdaho, United States
    881.9×
  168. 168KošiceKošice Region, Slovakia
    871.9×
  169. 169DushanbeDushanbe, Tajikistan
    871.9×
  170. 169Bang Bo DistrictSamut Prakan, Thailand
    871.9×
  171. 169Bonita SpringsFlorida, United States
    871.9×
  172. 172GranadaAndalusia, Spain
    871.9×
  173. 172Ústí nad LabemÚstí nad Labem Region, Czechia
    871.9×
  174. 174AlgiersAlgiers, Algeria
    861.9×
  175. 175MiskolcBorsod-Abaúj-Zemplén, Hungary
    861.9×
  176. 176DattelnNorth Rhine-Westphalia, Germany
    861.9×
  177. 177SofiaSofia-Capital, Bulgaria
    861.8×
  178. 177MunichBavaria, Germany
    861.8×
  179. 177San CarlosÑuble, Chile
    861.8×
  180. 177LawrencevilleGeorgia, United States
    861.8×
  181. 181MesaArizona, United States
    851.8×
  182. 181TucsonArizona, United States
    851.8×
  183. 181ButteMontana, United States
    851.8×
  184. 184BerounCentral Bohemia, Czechia
    851.8×
  185. 184San Juan del RíoQuerétaro, Mexico
    851.8×
  186. 184Phenix CityAlabama, United States
    851.8×
  187. 184WestonFlorida, United States
    851.8×
  188. 188KennerLouisiana, United States
    851.8×
  189. 189ParedesPorto, Portugal
    851.8×
  190. 190Hradec KrálovéHradec Králové Region, Czechia
    851.8×
  191. 190BurbankCalifornia, United States
    851.8×
  192. 192VisaliaCalifornia, United States
    841.8×
  193. 193San Tung Chung HangIslands, Hong Kong
    841.8×
  194. 194AricaArica y Parinacota Region, Chile
    841.8×
  195. 194Carsonlow-cost sensorsCalifornia, United States
    841.8×
  196. 196PřerovOlomouc Region, Czechia
    841.8×
  197. 197Long BeachCalifornia, United States
    831.8×
  198. 198Botevgradlow-cost sensorsSofia, Bulgaria
    831.8×
  199. 199OurenseGalicia, Spain
    831.8×
  200. 200BambergBavaria, Germany
    821.7×

Top 200 of 1,742 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 1, 2024, smogrank.com/history/2024-01-01 (accessed 2 Oct 2026).

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