SmogRank / History / December 27, 2024

Most polluted cities on December 27, 2024

2,314 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 349.0 µg/m³. Each city's own local calendar day.

← Lahore 349.0 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for December 27, 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+23.3×
  2. 2Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    27413.3×
  3. 3OpoleOpole Voivodeship, Poland
    25311.9×
  4. 4SalorTashkent Region, Uzbekistan
    24811.5×
  5. 5KolkataWest Bengal, India
    22710.1×
  6. 6DelhiDelhi, India
    2249.9×
  7. 6RacibórzSilesia, Poland
    2249.9×
  8. 8DushanbeDushanbe, Tajikistan
    2139.2×
  9. 9Dhakalow-cost sensorsDhaka Division, Bangladesh
    2048.6×
  10. 9OstravaMoravian-Silesian Region, Czechia
    2048.6×
  11. 11Jastrzębie ZdrójSilesia, Poland
    1998.3×
  12. 12Bielsko-BialaSilesia, Poland
    1968.0×
  13. 13Kędzierzyn-KoźleOpole Voivodeship, Poland
    1957.9×
  14. 14Islamabadlow-cost sensorsIslamabad, Pakistan
    1947.8×
  15. 16MumbaiMaharashtra, India
    1897.3×
  16. 16KłodzkoLower Silesia, Poland
    1897.3×
  17. 18HavířovMoravian-Silesian Region, Czechia
    1856.9×
  18. 19KaliszGreater Poland, Poland
    1846.8×
  19. 20Frýdek-MístekMoravian-Silesian Region, Czechia
    1836.7×
  20. 21SarajevoFederation of B&H, Bosnia and Herzegovina
    1826.7×
  21. 22Ulan BatorUlaanbaatar, Mongolia
    1786.2×
  22. 23ŻywiecSilesia, Poland
    1776.2×
  23. 24ŁaskŁódź Voivodeship, Poland
    1776.2×
  24. 25Czechowice-DziedziceSilesia, Poland
    1745.9×
  25. 26Banja LukaSrpska, Bosnia and Herzegovina
    1745.9×
  26. 27WrocławLower Silesia, Poland
    1735.8×
  27. 28Kathmandulow-cost sensorsBagmati Province, Nepal
    1725.7×
  28. 29RadomskoŁódź Voivodeship, Poland
    1725.7×
  29. 30TřinecMoravian-Silesian Region, Czechia
    1675.3×
  30. 31N'DjamenaN’Djaména, Chad
    1675.2×
  31. 32Yerevanlow-cost sensorsYerevan, Armenia
    1655.0×
  32. 33Kampalalow-cost sensorsCentral Region, Uganda
    1655.0×
  33. 35MinatitlánVeracruz, Mexico
    1634.8×
  34. 36KatowiceSilesia, Poland
    1634.8×
  35. 37Valašské MeziříčíZlín, Czechia
    1624.7×
  36. 38PřerovOlomouc Region, Czechia
    1614.7×
  37. 39CairoCairo, Egypt
    1614.6×
  38. 40OpavaMoravian-Silesian Region, Czechia
    1594.5×
  39. 41ZgierzŁódź Voivodeship, Poland
    1594.5×
  40. 43BaghdadBaghdad, Iraq
    1574.3×
  41. 44Zagreblow-cost sensorsZagreb, Croatia
    1564.2×
  42. 45Jelenia GóraLower Silesia, Poland
    1564.2×
  43. 46ZlínZlín, Czechia
    1554.1×
  44. 47KielceŚwiętokrzyskie, Poland
    1554.1×
  45. 47LancasterCalifornia, United States
    1554.1×
  46. 49Stodůlkylow-cost sensorsPrague, Czechia
    1533.9×
  47. 50Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    1523.8×
  48. 51StarachowiceŚwiętokrzyskie, Poland
    1523.8×
  49. 52DhahranEastern Province, Saudi Arabia
    1513.7×
  50. 53Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    1483.6×
  51. 54Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1463.6×
  52. 55RužomberokŽilina Region, Slovakia
    1453.6×
  53. 56SallanchesAuvergne-Rhône-Alpes, France
    1453.5×
  54. 57OlomoucOlomouc Region, Czechia
    1423.5×
  55. 58AshgabatAshgabat, Turkmenistan
    1423.5×
  56. 59GuangzhouGuangdong, China
    1413.5×
  57. 60Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1413.5×
  58. 61Tuen MunTuen Mun, Hong Kong
    1403.4×
  59. 62Bang NaBangkok, Thailand
    1403.4×
  60. 63KazincbarcikaBorsod-Abaúj-Zemplén, Hungary
    1373.3×
  61. 63ŽilinaŽilina Region, Slovakia
    1373.3×
  62. 65OtwockMazovia, Poland
    1373.3×
  63. 66ŁódźŁódź Voivodeship, Poland
    1343.3×
  64. 67Wan ChaiWan Chai, Hong Kong
    1333.2×
  65. 68Khlong Sam WaBangkok, Thailand
    1323.2×
  66. 69DejCluj County, Romania
    1323.2×
  67. 69Nong KhaemBangkok, Thailand
    1323.2×
  68. 71ObrenovacCentral Serbia, Serbia
    1323.2×
  69. 72BakuBaki, Azerbaijan
    1313.2×
  70. 73Tin Shui WaiYuen Long, Hong Kong
    1313.2×
  71. 74LučenecBanská Bystrica Region, Slovakia
    1313.2×
  72. 75LazarevacCentral Serbia, Serbia
    1303.1×
  73. 76KroměřížZlín, Czechia
    1293.1×
  74. 77JakartaJakarta, Indonesia
    1293.1×
  75. 78Lat KrabangBangkok, Thailand
    1283.1×
  76. 79Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1283.1×
  77. 79Trois-RivièresQuebec, Canada
    1283.1×
  78. 81SremčicaCentral Serbia, Serbia
    1273.1×
  79. 82San Tung Chung HangIslands, Hong Kong
    1273.1×
  80. 82LyonAuvergne-Rhône-Alpes, France
    1273.1×
  81. 84SenicaTrnava Region, Slovakia
    1263.0×
  82. 85RadomMazovia, Poland
    1253.0×
  83. 86CeljeUrban Municipality of Celje, Slovenia
    1243.0×
  84. 86Khan Na YaoBangkok, Thailand
    1243.0×
  85. 88Nong ChokBangkok, Thailand
    1243.0×
  86. 88Lak SiBangkok, Thailand
    1243.0×
  87. 90ZemunCentral Serbia, Serbia
    1243.0×
  88. 90TrbovljeMunicipality of Trbovlje, Slovenia
    1243.0×
  89. 92KladnoCentral Bohemia, Czechia
    1243.0×
  90. 93Ban Samae DamBangkok, Thailand
    1233.0×
  91. 93FanlingNorth District, Hong Kong
    1233.0×
  92. 95Tai PoTai Po, Hong Kong
    1233.0×
  93. 96Bueng KumBangkok, Thailand
    1222.9×
  94. 97FengshanTakao, Taiwan
    1212.9×
  95. 98PančevoVojvodina, Serbia
    1212.9×
  96. 99Dubailow-cost sensorsDubai, United Arab Emirates
    1202.9×
  97. 100KutnoŁódź Voivodeship, Poland
    1192.9×
  98. 101PezinokBratislava Region, Slovakia
    1192.9×
  99. 102KrakówLesser Poland, Poland
    1192.9×
  100. 103BangkokBangkok, Thailand
    1192.8×
  101. 104MiskolcBorsod-Abaúj-Zemplén, Hungary
    1182.8×
  102. 104ŻaryLubusz, Poland
    1182.8×
  103. 106Kwai ChungKwai Tsing District, Hong Kong
    1182.8×
  104. 107DębicaSubcarpathia, Poland
    1182.8×
  105. 108ChaozhouTaiwan, Taiwan
    1172.8×
  106. 109Mong KokYau Tsim Mong District, Hong Kong
    1162.8×
  107. 109GyőrGyőr-Moson-Sopron, Hungary
    1162.8×
  108. 109Saphan SungBangkok, Thailand
    1162.8×
  109. 112KaohsiungTakao, Taiwan
    1162.8×
  110. 113Almatylow-cost sensorsAlmaty, Kazakhstan
    1162.8×
  111. 113Mueang NonthaburiNonthaburi, Thailand
    1162.8×
  112. 113PuertollanoCastille-La Mancha, Spain
    1162.8×
  113. 116KomárnoNitra Region, Slovakia
    1152.7×
  114. 117SmederevoCentral Serbia, Serbia
    1142.7×
  115. 118Tsuen WanTsuen Wan, Hong Kong
    1142.7×
  116. 118PilsenPlzeň Region, Czechia
    1142.7×
  117. 120Accralow-cost sensorsGreater Accra, Ghana
    1132.7×
  118. 121MartinŽilina Region, Slovakia
    1132.7×
  119. 121LjubljanaLjubljana, Slovenia
    1132.7×
  120. 123TarnówLesser Poland, Poland
    1132.7×
  121. 124JinchengFukien, Taiwan
    1122.7×
  122. 124TrenčínTrenčín Region, Slovakia
    1122.7×
  123. 126CodleaBrașov County, Romania
    1122.7×
  124. 127Winterthurlow-cost sensorsZurich, Switzerland
    1112.6×
  125. 127ChiguayanteBiobio, Chile
    1112.6×
  126. 129BrossardQuebec, Canada
    1112.6×
  127. 130BelgradeCentral Serbia, Serbia
    1112.6×
  128. 130NitraNitra Region, Slovakia
    1112.6×
  129. 132TrnavaTrnava Region, Slovakia
    1102.6×
  130. 133VictoriaCentral and Western, Hong Kong
    1102.6×
  131. 134SereďTrnava Region, Slovakia
    1092.6×
  132. 135Ban Khlong PrawetBangkok, Thailand
    1092.6×
  133. 135Bang KapiBangkok, Thailand
    1092.6×
  134. 137Sham Shui PoSham Shui Po District, Hong Kong
    1092.6×
  135. 137Sai MaiBangkok, Thailand
    1092.6×
  136. 139PúchovTrenčín Region, Slovakia
    1082.6×
  137. 139KranjUrban Municipality of Kranj, Slovenia
    1082.6×
  138. 141Sha TinSha Tin, Hong Kong
    1082.6×
  139. 142MontréalQuebec, Canada
    1082.5×
  140. 143PruszkówMazovia, Poland
    1072.5×
  141. 144MielecSubcarpathia, Poland
    1062.5×
  142. 145Liptovský Mikulᚎilina Region, Slovakia
    1062.5×
  143. 146ValenceAuvergne-Rhône-Alpes, France
    1062.5×
  144. 147DorvalQuebec, Canada
    1052.5×
  145. 148MalackyBratislava Region, Slovakia
    1042.5×
  146. 149GrazStyria, Austria
    1042.4×
  147. 149TepliceÚstí nad Labem Region, Czechia
    1042.4×
  148. 149PtujUrban Municipality of Ptuj, Slovenia
    1042.4×
  149. 152Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada
    1042.4×
  150. 153Novi SadVojvodina, Serbia
    1022.4×
  151. 154BratislavaBratislava Region, Slovakia
    1022.4×
  152. 155IrapuatoGuanajuato, Mexico
    1002.4×
  153. 156RzeszówSubcarpathia, Poland
    1002.4×
  154. 157MurciaMurcia, Spain
    1002.3×
  155. 157České BudějoviceSouth Bohemian Region, Czechia
    1002.3×
  156. 159Sau Mau PingKwun Tong District, Hong Kong
    992.3×
  157. 160Sorel-TracyQuebec, Canada
    992.3×
  158. 161ŻyrardówMazovia, Poland
    992.3×
  159. 161Medina Estateslow-cost sensorsGreater Accra, Ghana
    992.3×
  160. 163Novo MestoUrban Municipality of Novo Mesto, Slovenia
    972.3×
  161. 164XonacatlánMéxico, Mexico
    972.3×
  162. 165ČadcaŽilina Region, Slovakia
    972.2×
  163. 167FutogVojvodina, Serbia
    962.2×
  164. 168BerounCentral Bohemia, Czechia
    962.2×
  165. 169WawerMazovia, Poland
    952.2×
  166. 169ShanghaiShanghai, China
    952.2×
  167. 171San Luis de la PazGuanajuato, Mexico
    952.2×
  168. 172KrosnoSubcarpathia, Poland
    942.2×
  169. 173Molina de SeguraMurcia, Spain
    942.1×
  170. 174TournaiWallonia, Belgium
    942.1×
  171. 175ArlesProvence-Alpes-Côte d'Azur, France
    932.1×
  172. 176Konstancin-JeziornaMazovia, Poland
    932.1×
  173. 176MontaubanOccitanie, France
    932.1×
  174. 176KoprivnicaKoprivnica-Križevci, Croatia
    932.1×
  175. 179WarsawMazovia, Poland
    932.1×
  176. 180Kempten (Allgäu)Bavaria, Germany
    932.1×
  177. 180ZnojmoSouth Moravian, Czechia
    932.1×
  178. 180LitvínovÚstí nad Labem Region, Czechia
    932.1×
  179. 183VillefontaineAuvergne-Rhône-Alpes, France
    932.1×
  180. 183Oconomowoclow-cost sensorsWisconsin, United States
    932.1×
  181. 185AntananarivoAnalamanga, Madagascar
    922.1×
  182. 186LublinLublin, Poland
    922.1×
  183. 187EsztergomKomárom-Esztergom, Hungary
    912.1×
  184. 187San CarlosÑuble, Chile
    912.1×
  185. 189NegotinCentral Serbia, Serbia
    912.0×
  186. 190NiskoSubcarpathia, Poland
    912.0×
  187. 190VigoGalicia, Spain
    912.0×
  188. 190Jacobo HunterArequipa, Peru
    912.0×
  189. 193Le HavreNormandy, France
    912.0×
  190. 195NîmesOccitanie, France
    902.0×
  191. 196NacimientoBiobio, Chile
    902.0×
  192. 197ŽideniceSouth Moravian, Czechia
    892.0×
  193. 198ZvolenBanská Bystrica Region, Slovakia
    892.0×
  194. 199Ústí nad LabemÚstí nad Labem Region, Czechia
    881.9×
  195. 199HarrisburgPennsylvania, United States
    881.9×

Top 200 of 2,314 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, December 27, 2024, smogrank.com/history/2024-12-27 (accessed 3 Oct 2026).

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