SmogRank / History / January 9, 2024

Most polluted cities on January 9, 2024

2,092 cities ranked by their average PM2.5 over the day; the worst was Peshawar, Pakistan, at 447.0 µg/m³. Each city's own local calendar day.

← Peshawar 447.0 µg/m³ 400 µg/m³15 WHO 24-hour guideline
Every city ranked for January 9, 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
    500+29.8×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    44719.9×
  3. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    29314.5×
  4. 4KolkataWest Bengal, India
    26312.5×
  5. 5Islamabadlow-cost sensorsIslamabad, Pakistan
    25011.7×
  6. 6StarachowiceŚwiętokrzyskie, Poland
    24311.2×
  7. 6Ulan BatorUlaanbaatar, Mongolia
    24311.2×
  8. 8DębicaSubcarpathia, Poland
    24011.0×
  9. 8DelhiDelhi, India
    24011.0×
  10. 10MielecSubcarpathia, Poland
    23310.5×
  11. 11RadomskoŁódź Voivodeship, Poland
    2078.8×
  12. 12OpoleOpole Voivodeship, Poland
    1978.1×
  13. 13JarosławSubcarpathia, Poland
    1968.0×
  14. 14NysaOpole Voivodeship, Poland
    1967.9×
  15. 15Abujalow-cost sensorsFCT, Nigeria
    1937.7×
  16. 16Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1877.1×
  17. 16Bielsko-BialaSilesia, Poland
    1877.1×
  18. 18ZgierzŁódź Voivodeship, Poland
    1867.0×
  19. 19DziałdowoWarmia-Masuria, Poland
    1826.7×
  20. 20TřinecMoravian-Silesian Region, Czechia
    1826.7×
  21. 21ŁaskŁódź Voivodeship, Poland
    1816.6×
  22. 22RacibórzSilesia, Poland
    1806.4×
  23. 23RzeszówSubcarpathia, Poland
    1796.4×
  24. 24HyderabadTelangana, India
    1786.2×
  25. 25Kędzierzyn-KoźleOpole Voivodeship, Poland
    1766.1×
  26. 26WłocławekKujawsko-Pomorskie, Poland
    1756.0×
  27. 27TarnówLesser Poland, Poland
    1756.0×
  28. 28OtwockMazovia, Poland
    1755.9×
  29. 29KigaliKigali, Rwanda
    1725.7×
  30. 30PrzemyślSubcarpathia, Poland
    1715.6×
  31. 31ZamośćLublin, Poland
    1715.6×
  32. 32KłodzkoLower Silesia, Poland
    1705.5×
  33. 32BydgoszczKujawsko-Pomorskie, Poland
    1705.5×
  34. 34JasłoSubcarpathia, Poland
    1705.5×
  35. 35NiskoSubcarpathia, Poland
    1705.5×
  36. 36Jastrzębie ZdrójSilesia, Poland
    1685.4×
  37. 37MumbaiMaharashtra, India
    1685.4×
  38. 38Jelenia GóraLower Silesia, Poland
    1685.3×
  39. 39Frýdek-MístekMoravian-Silesian Region, Czechia
    1685.3×
  40. 40RadomMazovia, Poland
    1685.3×
  41. 41DushanbeDushanbe, Tajikistan
    1675.3×
  42. 42OstravaMoravian-Silesian Region, Czechia
    1675.2×
  43. 43FredrikstadØstfold, Norway
    1665.2×
  44. 45KaliszGreater Poland, Poland
    1665.1×
  45. 46Kampalalow-cost sensorsCentral Region, Uganda
    1665.1×
  46. 47OpavaMoravian-Silesian Region, Czechia
    1655.0×
  47. 48Kathmandulow-cost sensorsBagmati Province, Nepal
    1655.0×
  48. 49Gorzów WielkopolskiLubusz, Poland
    1644.9×
  49. 50PoznańGreater Poland, Poland
    1634.9×
  50. 51Karachilow-cost sensorsSindh, Pakistan
    1634.9×
  51. 52Samut SakhonSamut Sakhon, Thailand
    1634.8×
  52. 52Valašské MeziříčíZlín, Czechia
    1634.8×
  53. 52KutnoŁódź Voivodeship, Poland
    1634.8×
  54. 55KrosnoSubcarpathia, Poland
    1634.8×
  55. 56LublinLublin, Poland
    1624.8×
  56. 57CairoCairo, Egypt
    1624.8×
  57. 58ŻyrardówMazovia, Poland
    1624.7×
  58. 60Ban Samae DamBangkok, Thailand
    1614.6×
  59. 61HavířovMoravian-Silesian Region, Czechia
    1614.6×
  60. 62Nong KhaemBangkok, Thailand
    1604.6×
  61. 63PruszkówMazovia, Poland
    1604.5×
  62. 63LęborkPomerania, Poland
    1604.5×
  63. 65Bang Khun ThianBangkok, Thailand
    1604.5×
  64. 66LegionowoMazovia, Poland
    1584.4×
  65. 67Mueang NonthaburiNonthaburi, Thailand
    1574.2×
  66. 68AugustówPodlasie, Poland
    1574.2×
  67. 69TlaquepaqueJalisco, Mexico
    1554.1×
  68. 70Czechowice-DziedziceSilesia, Poland
    1554.0×
  69. 71SukhothaiSukhothai, Thailand
    1533.9×
  70. 72RatchaburiRatchaburi, Thailand
    1533.9×
  71. 73SalorTashkent Region, Uzbekistan
    1533.9×
  72. 74WrocławLower Silesia, Poland
    1533.9×
  73. 75KrakówLesser Poland, Poland
    1533.9×
  74. 75KościerzynaPomerania, Poland
    1533.9×
  75. 77Khlong Sam WaBangkok, Thailand
    1533.9×
  76. 78LillestrømAkershus, Norway
    1533.8×
  77. 79SzczecinWest Pomerania, Poland
    1523.8×
  78. 80Lop BuriLopburi, Thailand
    1523.8×
  79. 81ToruńKujawsko-Pomorskie, Poland
    1523.8×
  80. 82Khlong LuangPathum Thani, Thailand
    1523.8×
  81. 83Ga-RankuwaNorth West, South Africa
    1513.7×
  82. 84Nakhon PathomNakhon Pathom, Thailand
    1493.7×
  83. 85Sing BuriSing Buri, Thailand
    1493.7×
  84. 85Chai NatChai Nat, Thailand
    1493.7×
  85. 87KanchanaburiKanchanaburi, Thailand
    1483.6×
  86. 88ZlínZlín, Czechia
    1483.6×
  87. 89ŁukówLublin, Poland
    1473.6×
  88. 89KroměřížZlín, Czechia
    1473.6×
  89. 89OsloOslo, Norway
    1473.6×
  90. 92ŚwiecieKujawsko-Pomorskie, Poland
    1463.6×
  91. 93BangkokBangkok, Thailand
    1463.6×
  92. 93Bueng KumBangkok, Thailand
    1463.6×
  93. 93Lak SiBangkok, Thailand
    1463.6×
  94. 96Bang NaBangkok, Thailand
    1453.5×
  95. 97Phra PradaengSamut Prakan, Thailand
    1443.5×
  96. 98BiałystokPodlasie, Poland
    1433.5×
  97. 98Khan Na YaoBangkok, Thailand
    1433.5×
  98. 100HamarInnlandet, Norway
    1433.5×
  99. 101SarpsborgØstfold, Norway
    1423.5×
  100. 102ŁódźŁódź Voivodeship, Poland
    1413.4×
  101. 103Konstancin-JeziornaMazovia, Poland
    1413.4×
  102. 104KatowiceSilesia, Poland
    1403.4×
  103. 105Ban Khlong PrawetBangkok, Thailand
    1393.4×
  104. 105LiberecLiberec Region, Czechia
    1393.4×
  105. 107Saphan SungBangkok, Thailand
    1383.4×
  106. 108WawerMazovia, Poland
    1373.4×
  107. 109Bang KapiBangkok, Thailand
    1373.3×
  108. 110Lat KrabangBangkok, Thailand
    1343.3×
  109. 111SiedlceMazovia, Poland
    1343.3×
  110. 112Nong ChokBangkok, Thailand
    1323.2×
  111. 113PančevoVojvodina, Serbia
    1313.2×
  112. 114Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    1313.2×
  113. 115WarsawMazovia, Poland
    1303.2×
  114. 115Wan ChaiWan Chai, Hong Kong
    1303.2×
  115. 117PřerovOlomouc Region, Czechia
    1303.1×
  116. 118LampangLampang, Thailand
    1293.1×
  117. 119ChennaiTamil Nadu, India
    1293.1×
  118. 119Sai MaiBangkok, Thailand
    1293.1×
  119. 121OlsztynWarmia-Masuria, Poland
    1283.1×
  120. 122PardubicePardubice Region, Czechia
    1273.1×
  121. 123SenicaTrnava Region, Slovakia
    1253.0×
  122. 124GuangzhouGuangdong, China
    1253.0×
  123. 125YangonYangon, Myanmar
    1243.0×
  124. 126UttaraditUttaradit, Thailand
    1233.0×
  125. 127Suphan BuriSuphan Buri, Thailand
    1212.9×
  126. 128České BudějoviceSouth Bohemian Region, Czechia
    1212.9×
  127. 129Samut PrakanSamut Prakan, Thailand
    1212.9×
  128. 130ŻaryLubusz, Poland
    1202.9×
  129. 131Nakhon RatchasimaNakhon Ratchasima, Thailand
    1202.9×
  130. 132Laem ChabangChon Buri, Thailand
    1192.9×
  131. 133OlomoucOlomouc Region, Czechia
    1182.8×
  132. 134RužomberokŽilina Region, Slovakia
    1182.8×
  133. 135DěčínÚstí nad Labem Region, Czechia
    1172.8×
  134. 135PorsgrunnTelemark, Norway
    1172.8×
  135. 137ZemunCentral Serbia, Serbia
    1172.8×
  136. 137MossØstfold, Norway
    1172.8×
  137. 139Nakhon SawanNakhon Sawan, Thailand
    1172.8×
  138. 140PułtuskMazovia, Poland
    1172.8×
  139. 141Mladá BoleslavCentral Bohemia, Czechia
    1162.8×
  140. 142SaraburiSaraburi, Thailand
    1162.8×
  141. 142Frankfurt (Oder)Brandenburg, Germany
    1162.8×
  142. 144PhichitPhichit, Thailand
    1162.8×
  143. 145Ban ChangRayong, Thailand
    1152.7×
  144. 146Hradec KrálovéHradec Králové Region, Czechia
    1142.7×
  145. 147LazarevacCentral Serbia, Serbia
    1142.7×
  146. 148BerounCentral Bohemia, Czechia
    1132.7×
  147. 149CottbusBrandenburg, Germany
    1122.7×
  148. 150AranyaprathetSa Kaeo, Thailand
    1092.6×
  149. 151Hua HinPrachuap Khiri Khan, Thailand
    1082.6×
  150. 152PłockMazovia, Poland
    1072.5×
  151. 153EisenhüttenstadtBrandenburg, Germany
    1072.5×
  152. 154BelgradeCentral Serbia, Serbia
    1072.5×
  153. 155Mong KokYau Tsim Mong District, Hong Kong
    1062.5×
  154. 156PraguePrague, Czechia
    1042.5×
  155. 157ŽideniceSouth Moravian, Czechia
    1042.4×
  156. 158RayongRayong, Thailand
    1042.4×
  157. 159SremčicaCentral Serbia, Serbia
    1032.4×
  158. 159Tuen MunTuen Mun, Hong Kong
    1032.4×
  159. 159ShenyangLiaoning, China
    1032.4×
  160. 162ElblągWarmia-Masuria, Poland
    1032.4×
  161. 162Banja LukaSrpska, Bosnia and Herzegovina
    1032.4×
  162. 164ManlleuCatalonia, Spain
    1032.4×
  163. 165ZnojmoSouth Moravian, Czechia
    1022.4×
  164. 166Khon KaenKhon Kaen, Thailand
    1022.4×
  165. 166VictoriaCentral and Western, Hong Kong
    1022.4×
  166. 168NanNan, Thailand
    1022.4×
  167. 169BratislavaBratislava Region, Slovakia
    1012.4×
  168. 170JeddahMecca Region, Saudi Arabia
    1012.4×
  169. 170PhraePhrae, Thailand
    1012.4×
  170. 172Sau Mau PingKwun Tong District, Hong Kong
    1012.4×
  171. 173CallaoCallao, Peru
    1002.4×
  172. 174LitvínovÚstí nad Labem Region, Czechia
    1002.3×
  173. 175Kamphaeng PhetKamphaeng Phet, Thailand
    992.3×
  174. 175Almatylow-cost sensorsAlmaty, Kazakhstan
    992.3×
  175. 177Sham Shui PoSham Shui Po District, Hong Kong
    982.3×
  176. 178Tin Shui WaiYuen Long, Hong Kong
    982.3×
  177. 178KladnoCentral Bohemia, Czechia
    982.3×
  178. 178Zielona GóraLubusz, Poland
    982.3×
  179. 181PhayaoPhayao, Thailand
    982.3×
  180. 182JakartaJakarta, Indonesia
    972.3×
  181. 182MostÚstí nad Labem Region, Czechia
    972.3×
  182. 184Ústí nad LabemÚstí nad Labem Region, Czechia
    972.3×
  183. 185GjøvikInnlandet, Norway
    972.3×
  184. 186HanoiHanoi, Vietnam
    972.2×
  185. 187GrajewoPodlasie, Poland
    962.2×
  186. 188Bang Bo DistrictSamut Prakan, Thailand
    962.2×
  187. 189SurinSurin, Thailand
    952.2×
  188. 189PauNew Aquitaine, France
    952.2×
  189. 191Kwai ChungKwai Tsing District, Hong Kong
    952.2×
  190. 191Ciudad Benito JuárezNuevo León, Mexico
    952.2×
  191. 193KalasinKalasin, Thailand
    952.2×
  192. 194TepliceÚstí nad Labem Region, Czechia
    942.1×
  193. 195San Tung Chung HangIslands, Hong Kong
    942.1×
  194. 197Tsuen WanTsuen Wan, Hong Kong
    942.1×
  195. 198SarajevoFederation of B&H, Bosnia and Herzegovina
    932.1×
  196. 199GreizThuringia, Germany
    932.1×
  197. 200YasothonYasothon, Thailand
    932.1×

Top 200 of 2,092 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, January 9, 2024, smogrank.com/history/2024-01-09 (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.