SmogRank / History / December 4, 2024

Most polluted cities on December 4, 2024

1,707 cities ranked by their average PM2.5 over the day; the worst was Kolkata, India, at 213.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during December 4, 2024. All episodes.

← Kolkata 213.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for December 4, 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. 1KolkataWest Bengal, India
    28814.2×
  2. 2Dhakalow-cost sensorsDhaka Division, Bangladesh
    27213.1×
  3. 3Kampalalow-cost sensorsCentral Region, Uganda
    23910.9×
  4. 4DushanbeDushanbe, Tajikistan
    2038.5×
  5. 5Ulan BatorUlaanbaatar, Mongolia
    1917.5×
  6. 6BaghdadBaghdad, Iraq
    1907.4×
  7. 7SalorTashkent Region, Uzbekistan
    1786.3×
  8. 8Lahorelow-cost sensorsPunjab, Pakistan
    1756.0×
  9. 9DelhiDelhi, India
    1705.5×
  10. 10Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1685.3×
  11. 11CairoCairo, Egypt
    1685.3×
  12. 12Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    1675.2×
  13. 13NegotinCentral Serbia, Serbia
    1594.5×
  14. 14Islamabadlow-cost sensorsIslamabad, Pakistan
    1594.4×
  15. 15VisaliaCalifornia, United States
    1584.3×
  16. 16Kathmandulow-cost sensorsBagmati Province, Nepal
    1574.3×
  17. 17MumbaiMaharashtra, India
    1574.3×
  18. 18N'DjamenaN’Djaména, Chad
    1574.3×
  19. 19Zagreblow-cost sensorsZagreb, Croatia
    1564.2×
  20. 20Nong KhaemBangkok, Thailand
    1523.8×
  21. 21Yerevanlow-cost sensorsYerevan, Armenia
    1513.7×
  22. 22Banja LukaSrpska, Bosnia and Herzegovina
    1493.7×
  23. 23HanfordCalifornia, United States
    1423.5×
  24. 24BakersfieldCalifornia, United States
    1423.5×
  25. 25JasłoSubcarpathia, Poland
    1423.5×
  26. 26HanoiHanoi, Vietnam
    1393.4×
  27. 26Ban Samae DamBangkok, Thailand
    1393.4×
  28. 28ŁukówLublin, Poland
    1393.4×
  29. 29NyíregyházaSzabolcs-Szatmár-Bereg, Hungary
    1383.4×
  30. 29Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1383.4×
  31. 31FresnoCalifornia, United States
    1343.3×
  32. 31Khlong Sam WaBangkok, Thailand
    1343.3×
  33. 33MiskolcBorsod-Abaúj-Zemplén, Hungary
    1333.2×
  34. 33Bang NaBangkok, Thailand
    1333.2×
  35. 35ŻywiecSilesia, Poland
    1303.2×
  36. 36LazarevacCentral Serbia, Serbia
    1293.1×
  37. 37ColomboWestern Province, Sri Lanka
    1263.0×
  38. 38PortervilleCalifornia, United States
    1253.0×
  39. 39Lak SiBangkok, Thailand
    1233.0×
  40. 40GuangzhouGuangdong, China
    1233.0×
  41. 41BangkokBangkok, Thailand
    1222.9×
  42. 42CorcoranCalifornia, United States
    1212.9×
  43. 42Santa Anita - Los FicusLima region, Peru
    1212.9×
  44. 44KłodzkoLower Silesia, Poland
    1202.9×
  45. 45Jurupa ValleyCalifornia, United States
    1182.8×
  46. 46SremčicaCentral Serbia, Serbia
    1172.8×
  47. 47RadomMazovia, Poland
    1162.8×
  48. 48PrzemyślSubcarpathia, Poland
    1162.8×
  49. 49Lat KrabangBangkok, Thailand
    1142.7×
  50. 50LublinLublin, Poland
    1132.7×
  51. 50ClovisCalifornia, United States
    1132.7×
  52. 52RzeszówSubcarpathia, Poland
    1132.7×
  53. 53MillcreekUtah, United States
    1122.7×
  54. 54Khan Na YaoBangkok, Thailand
    1112.6×
  55. 55FutogVojvodina, Serbia
    1112.6×
  56. 56Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1102.6×
  57. 56OtwockMazovia, Poland
    1102.6×
  58. 56StocktonCalifornia, United States
    1102.6×
  59. 56Bueng KumBangkok, Thailand
    1102.6×
  60. 60Bang KapiBangkok, Thailand
    1092.6×
  61. 60FontanaCalifornia, United States
    1092.6×
  62. 62ModestoCalifornia, United States
    1092.6×
  63. 63PančevoVojvodina, Serbia
    1092.6×
  64. 64Chiayi CityTaiwan, Taiwan
    1082.6×
  65. 65KaohsiungTakao, Taiwan
    1082.5×
  66. 66StarachowiceŚwiętokrzyskie, Poland
    1072.5×
  67. 67FengshanTakao, Taiwan
    1072.5×
  68. 67ZgierzŁódź Voivodeship, Poland
    1072.5×
  69. 69ZemunCentral Serbia, Serbia
    1072.5×
  70. 69KrakówLesser Poland, Poland
    1072.5×
  71. 71Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1062.5×
  72. 71Los AngelesCalifornia, United States
    1062.5×
  73. 73Saphan SungBangkok, Thailand
    1062.5×
  74. 74MercedCalifornia, United States
    1062.5×
  75. 75DębicaSubcarpathia, Poland
    1052.5×
  76. 75West JordanUtah, United States
    1052.5×
  77. 77KigaliKigali, Rwanda
    1052.5×
  78. 77Jastrzębie ZdrójSilesia, Poland
    1052.5×
  79. 79DouliuTaiwan, Taiwan
    1052.5×
  80. 79Kinshasalow-cost sensorsKinshasa, Democratic Republic of the Congo
    1052.5×
  81. 81Haskovolow-cost sensorsHaskovo, Bulgaria
    1052.5×
  82. 81SmederevoCentral Serbia, Serbia
    1052.5×
  83. 81Mueang NonthaburiNonthaburi, Thailand
    1052.5×
  84. 81BurbankCalifornia, United States
    1052.5×
  85. 85ŁaskŁódź Voivodeship, Poland
    1042.5×
  86. 86JarosławSubcarpathia, Poland
    1042.5×
  87. 86ObrenovacCentral Serbia, Serbia
    1042.5×
  88. 86TurlockCalifornia, United States
    1042.5×
  89. 89SarajevoFederation of B&H, Bosnia and Herzegovina
    1042.4×
  90. 90NiskoSubcarpathia, Poland
    1032.4×
  91. 91Ban Khlong PrawetBangkok, Thailand
    1032.4×
  92. 92HyderabadTelangana, India
    1032.4×
  93. 93KielceŚwiętokrzyskie, Poland
    1022.4×
  94. 93RacibórzSilesia, Poland
    1022.4×
  95. 93Sai MaiBangkok, Thailand
    1022.4×
  96. 96RiversideCalifornia, United States
    1022.4×
  97. 97YongkangTaiwan, Taiwan
    992.3×
  98. 98MaderaCalifornia, United States
    992.3×
  99. 99Medina Estateslow-cost sensorsGreater Accra, Ghana
    992.3×
  100. 100KatowiceSilesia, Poland
    982.3×
  101. 100Salt Lake CityUtah, United States
    982.3×
  102. 102TainanTaiwan, Taiwan
    972.3×
  103. 103MielecSubcarpathia, Poland
    972.3×
  104. 104KrosnoSubcarpathia, Poland
    972.2×
  105. 105BelgradeCentral Serbia, Serbia
    962.2×
  106. 105Bielsko-BialaSilesia, Poland
    962.2×
  107. 107Vientianelow-cost sensorsVientiane Prefecture, Laos
    962.2×
  108. 108XinyingTaiwan, Taiwan
    962.2×
  109. 108West Valley CityUtah, United States
    962.2×
  110. 110Nong ChokBangkok, Thailand
    962.2×
  111. 111Accralow-cost sensorsGreater Accra, Ghana
    942.1×
  112. 112GrajewoPodlasie, Poland
    942.1×
  113. 113AshgabatAshgabat, Turkmenistan
    932.1×
  114. 113ZhushanTaiwan, Taiwan
    932.1×
  115. 115Novi SadVojvodina, Serbia
    932.1×
  116. 116ChiguayanteBiobio, Chile
    922.1×
  117. 117LimaLima Province, Peru
    922.1×
  118. 118MantecaCalifornia, United States
    922.1×
  119. 119DziałdowoWarmia-Masuria, Poland
    922.1×
  120. 120AugustówPodlasie, Poland
    912.1×
  121. 120MedfordOregon, United States
    912.1×
  122. 122YangonYangon, Myanmar
    902.0×
  123. 123Kędzierzyn-KoźleOpole Voivodeship, Poland
    902.0×
  124. 124Abujalow-cost sensorsFCT, Nigeria
    902.0×
  125. 125RadomskoŁódź Voivodeship, Poland
    902.0×
  126. 126OpoleOpole Voivodeship, Poland
    892.0×
  127. 126Hawthornelow-cost sensorsCalifornia, United States
    892.0×
  128. 128Czechowice-DziedziceSilesia, Poland
    892.0×
  129. 128Agouralow-cost sensorsCalifornia, United States
    892.0×
  130. 130AmmanAmman, Jordan
    892.0×
  131. 131Carsonlow-cost sensorsCalifornia, United States
    881.9×
  132. 132Jacobo HunterArequipa, Peru
    881.9×
  133. 133Torrancelow-cost sensorsCalifornia, United States
    881.9×
  134. 134KutnoŁódź Voivodeship, Poland
    881.9×
  135. 135Almatylow-cost sensorsAlmaty, Kazakhstan
    881.9×
  136. 136Florinlow-cost sensorsCalifornia, United States
    871.9×
  137. 137WłocławekKujawsko-Pomorskie, Poland
    861.9×
  138. 137Inglewoodlow-cost sensorsCalifornia, United States
    861.9×
  139. 137Palo Altolow-cost sensorsCalifornia, United States
    861.9×
  140. 140BiałystokPodlasie, Poland
    861.9×
  141. 141AnaheimCalifornia, United States
    861.9×
  142. 141Santa Monicalow-cost sensorsCalifornia, United States
    861.9×
  143. 143ZamośćLublin, Poland
    861.9×
  144. 143ChaozhouTaiwan, Taiwan
    861.9×
  145. 145CalexicoCalifornia, United States
    861.8×
  146. 146WawerMazovia, Poland
    851.8×
  147. 147Istanbullow-cost sensorsIstanbul, Turkey
    851.8×
  148. 147PiscoIca, Peru
    851.8×
  149. 147MagnaUtah, United States
    851.8×
  150. 147Spanish ForkUtah, United States
    851.8×
  151. 151ChicoCalifornia, United States
    851.8×
  152. 152KościanGreater Poland, Poland
    851.8×
  153. 152Silao de la VictoriaGuanajuato, Mexico
    851.8×
  154. 154BakuBaki, Azerbaijan
    841.8×
  155. 154Arden-ArcadeCalifornia, United States
    841.8×
  156. 156San Francisco De BorjaLima region, Peru
    841.8×
  157. 157BountifulUtah, United States
    841.8×
  158. 158Konstancin-JeziornaMazovia, Poland
    831.8×
  159. 159PuliTaiwan, Taiwan
    831.8×
  160. 159BeigangTaiwan, Taiwan
    831.8×
  161. 159SacramentoCalifornia, United States
    831.8×
  162. 162Lake ElsinoreCalifornia, United States
    831.7×
  163. 163PruszkówMazovia, Poland
    821.7×
  164. 163NantouTaiwan, Taiwan
    821.7×
  165. 163IrapuatoGuanajuato, Mexico
    821.7×
  166. 166YuanlinTaiwan, Taiwan
    821.7×
  167. 167KaliszGreater Poland, Poland
    821.7×
  168. 168San JoseCalifornia, United States
    811.7×
  169. 168OremUtah, United States
    811.7×
  170. 170Villa Poeta José Gálvez BarrenecheaLima region, Peru
    811.7×
  171. 171BorCentral Serbia, Serbia
    811.7×
  172. 171KołobrzegWest Pomerania, Poland
    811.7×
  173. 171TocopillaAntofagasta, Chile
    811.7×
  174. 171La Crescenta-Montroselow-cost sensorsCalifornia, United States
    811.7×
  175. 175NogalesSonora, Mexico
    801.6×
  176. 176ŚwiecieKujawsko-Pomorskie, Poland
    801.6×
  177. 176Puente AltoSantiago Metropolitan, Chile
    801.6×
  178. 178HerrimanUtah, United States
    801.6×
  179. 179ŁódźŁódź Voivodeship, Poland
    801.6×
  180. 180Lomitalow-cost sensorsCalifornia, United States
    791.6×
  181. 180WoodlandCalifornia, United States
    791.6×
  182. 182AstanaAstana, Kazakhstan
    791.6×
  183. 183QuillotaValparaiso, Chile
    791.6×
  184. 183ComptonCalifornia, United States
    791.6×
  185. 185TarnówLesser Poland, Poland
    781.6×
  186. 186GlendoraCalifornia, United States
    781.6×
  187. 187Imperial BeachCalifornia, United States
    781.6×
  188. 188BytówPomerania, Poland
    781.6×
  189. 188Yuba CityCalifornia, United States
    781.6×
  190. 190AntananarivoAnalamanga, Madagascar
    781.6×
  191. 190SantiagoSantiago Metropolitan, Chile
    781.6×
  192. 192RancaguaO'Higgins Region, Chile
    771.5×
  193. 192NacimientoBiobio, Chile
    771.5×
  194. 194ErlunTaiwan, Taiwan
    771.5×
  195. 195Santa ClaritaCalifornia, United States
    771.5×
  196. 196WarsawMazovia, Poland
    761.5×
  197. 196QuinteroValparaiso, Chile
    761.5×
  198. 196AltamontOregon, United States
    761.5×
  199. 199Gabrovolow-cost sensorsGabrovo, Bulgaria
    761.5×
  200. 199EłkWarmia-Masuria, Poland
    761.5×

Top 200 of 1,707 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 4, 2024, smogrank.com/history/2024-12-04 (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.