SmogRank / History / January 4, 2025

Most polluted cities on January 4, 2025

2,329 cities ranked by their average PM2.5 over the day; the worst was Lahore, Pakistan, at 300.0 µg/m³. Each city's own local calendar day.

← Lahore 300.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for January 4, 2025, 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
    44920.0×
  2. 2DelhiDelhi, India
    40018.3×
  3. 3KolkataWest Bengal, India
    29214.5×
  4. 4Dhakalow-cost sensorsDhaka Division, Bangladesh
    27213.1×
  5. 5Kampalalow-cost sensorsCentral Region, Uganda
    1867.1×
  6. 6Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1867.0×
  7. 7HanoiHanoi, Vietnam
    1786.3×
  8. 8DushanbeDushanbe, Tajikistan
    1786.3×
  9. 9Kathmandulow-cost sensorsBagmati Province, Nepal
    1786.3×
  10. 10ValjevoCentral Serbia, Serbia
    1786.3×
  11. 11N'DjamenaN’Djaména, Chad
    1756.0×
  12. 12Novi PazarCentral Serbia, Serbia
    1725.7×
  13. 13MumbaiMaharashtra, India
    1685.4×
  14. 14ChennaiTamil Nadu, India
    1685.3×
  15. 15KraljevoCentral Serbia, Serbia
    1644.9×
  16. 16Islamabadlow-cost sensorsIslamabad, Pakistan
    1614.7×
  17. 17HyderabadTelangana, India
    1594.5×
  18. 18LazarevacCentral Serbia, Serbia
    1594.5×
  19. 19SalorTashkent Region, Uzbekistan
    1584.4×
  20. 20SmederevoCentral Serbia, Serbia
    1574.3×
  21. 21BadgerAlaska, United States
    1564.2×
  22. 22Yerevanlow-cost sensorsYerevan, Armenia
    1564.2×
  23. 23SarajevoFederation of B&H, Bosnia and Herzegovina
    1533.9×
  24. 24Banja LukaSrpska, Bosnia and Herzegovina
    1523.8×
  25. 25FredrikstadØstfold, Norway
    1523.8×
  26. 26KragujevacCentral Serbia, Serbia
    1493.7×
  27. 27ČačakCentral Serbia, Serbia
    1473.6×
  28. 28UžiceCentral Serbia, Serbia
    1473.6×
  29. 29ShenyangLiaoning, China
    1463.6×
  30. 30Almatylow-cost sensorsAlmaty, Kazakhstan
    1433.5×
  31. 31Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1353.3×
  32. 32AthensAttica, Greece
    1323.2×
  33. 33GuangzhouGuangdong, China
    1283.1×
  34. 34KigaliKigali, Rwanda
    1233.0×
  35. 35Jurupa ValleyCalifornia, United States
    1222.9×
  36. 36Khlong Sam WaBangkok, Thailand
    1222.9×
  37. 37SarpsborgØstfold, Norway
    1212.9×
  38. 38ManlleuCatalonia, Spain
    1212.9×
  39. 39BelgradeCentral Serbia, Serbia
    1182.8×
  40. 40ZemunCentral Serbia, Serbia
    1172.8×
  41. 41LillestrømAkershus, Norway
    1172.8×
  42. 42ObrenovacCentral Serbia, Serbia
    1162.8×
  43. 43PančevoVojvodina, Serbia
    1152.8×
  44. 44NišCentral Serbia, Serbia
    1142.7×
  45. 45Lak SiBangkok, Thailand
    1142.7×
  46. 46RiversideCalifornia, United States
    1132.7×
  47. 47YangonYangon, Myanmar
    1112.6×
  48. 47Nong KhaemBangkok, Thailand
    1112.6×
  49. 49BeijingBeijing, China
    1102.6×
  50. 49Abidjanlow-cost sensorsAbidjan Autonomous District, Ivory Coast
    1102.6×
  51. 51Accralow-cost sensorsGreater Accra, Ghana
    1102.6×
  52. 52FontanaCalifornia, United States
    1092.6×
  53. 52Santa Anita - Los FicusLima region, Peru
    1092.6×
  54. 54Bueng KumBangkok, Thailand
    1082.6×
  55. 55PonferradaCastille and León, Spain
    1072.5×
  56. 56SremčicaCentral Serbia, Serbia
    1062.5×
  57. 56PirotCentral Serbia, Serbia
    1062.5×
  58. 56Ban Samae DamBangkok, Thailand
    1062.5×
  59. 59JeddahMecca Region, Saudi Arabia
    1052.5×
  60. 60ZgierzŁódź Voivodeship, Poland
    1032.4×
  61. 61Sai MaiBangkok, Thailand
    1022.4×
  62. 62CairoCairo, Egypt
    1012.4×
  63. 63ColomboWestern Province, Sri Lanka
    1002.4×
  64. 63Mueang NonthaburiNonthaburi, Thailand
    1002.4×
  65. 65DębicaSubcarpathia, Poland
    1002.4×
  66. 66Medina Estateslow-cost sensorsGreater Accra, Ghana
    992.3×
  67. 67PiraeusAttica, Greece
    992.3×
  68. 68Bang NaBangkok, Thailand
    992.3×
  69. 68CeljeUrban Municipality of Celje, Slovenia
    992.3×
  70. 68Khan Na YaoBangkok, Thailand
    992.3×
  71. 71BangkokBangkok, Thailand
    992.3×
  72. 71Tuen MunTuen Mun, Hong Kong
    992.3×
  73. 73Lat KrabangBangkok, Thailand
    982.3×
  74. 73Saphan SungBangkok, Thailand
    982.3×
  75. 75BakuBaki, Azerbaijan
    982.3×
  76. 76Bang KapiBangkok, Thailand
    972.3×
  77. 77AcharnésAttica, Greece
    972.2×
  78. 78PorsgrunnTelemark, Norway
    962.2×
  79. 79RzeszówSubcarpathia, Poland
    962.2×
  80. 79Czechowice-DziedziceSilesia, Poland
    962.2×
  81. 81Ban Khlong PrawetBangkok, Thailand
    942.2×
  82. 81MonterreyNuevo León, Mexico
    942.2×
  83. 83Wan ChaiWan Chai, Hong Kong
    942.1×
  84. 83MaspalomasCanary Islands, Spain
    942.1×
  85. 83CorkMunster, Ireland
    942.1×
  86. 86Nong ChokBangkok, Thailand
    942.1×
  87. 87AgüimesCanary Islands, Spain
    932.1×
  88. 87DrammenBuskerud, Norway
    932.1×
  89. 89NegotinCentral Serbia, Serbia
    922.1×
  90. 89BurbankCalifornia, United States
    922.1×
  91. 91SocorroTexas, United States
    922.1×
  92. 92Kędzierzyn-KoźleOpole Voivodeship, Poland
    922.1×
  93. 93Tin Shui WaiYuen Long, Hong Kong
    912.0×
  94. 94FutogVojvodina, Serbia
    902.0×
  95. 95Los AngelesCalifornia, United States
    902.0×
  96. 96ThessaloníkiCentral Macedonia, Greece
    892.0×
  97. 97Alcalá de GuadairaAndalusia, Spain
    881.9×
  98. 98IngenioCanary Islands, Spain
    871.9×
  99. 98OsloOslo, Norway
    871.9×
  100. 100Zagreblow-cost sensorsZagreb, Croatia
    871.9×
  101. 101AmmanAmman, Jordan
    871.9×
  102. 101Mong KokYau Tsim Mong District, Hong Kong
    871.9×
  103. 103KrotoszynGreater Poland, Poland
    871.9×
  104. 104Debrecenlow-cost sensorsHajdú-Bihar, Hungary
    861.9×
  105. 104Tai PoTai Po, Hong Kong
    861.9×
  106. 106San Tung Chung HangIslands, Hong Kong
    861.8×
  107. 106AguascalientesAguascalientes, Mexico
    861.8×
  108. 108Addis AbabaAddis Ababa, Ethiopia
    851.8×
  109. 108Istanbullow-cost sensorsIstanbul, Turkey
    851.8×
  110. 110SevillaAndalusia, Spain
    851.8×
  111. 110MossØstfold, Norway
    851.8×
  112. 110CalamaAntofagasta, Chile
    851.8×
  113. 113Kwai ChungKwai Tsing District, Hong Kong
    851.8×
  114. 114LleidaCatalonia, Spain
    841.8×
  115. 115NacimientoBiobio, Chile
    841.8×
  116. 115GlendoraCalifornia, United States
    841.8×
  117. 117FengshanTakao, Taiwan
    831.8×
  118. 117GironaCatalonia, Spain
    831.8×
  119. 119AsprópyrgosAttica, Greece
    831.8×
  120. 120TijuanaBaja California, Mexico
    831.8×
  121. 121MarignaneProvence-Alpes-Côte d'Azur, France
    831.7×
  122. 122Tsuen WanTsuen Wan, Hong Kong
    821.7×
  123. 122CreilHauts-de-France, France
    821.7×
  124. 124Santa CatarinaNuevo León, Mexico
    821.7×
  125. 125KaohsiungTakao, Taiwan
    821.7×
  126. 126DejCluj County, Romania
    811.7×
  127. 127ComptonCalifornia, United States
    811.7×
  128. 128GrazStyria, Austria
    811.7×
  129. 128Jardines de la SillaNuevo León, Mexico
    811.7×
  130. 130ChaozhouTaiwan, Taiwan
    811.7×
  131. 131RouenNormandy, France
    811.7×
  132. 132Puente AltoSantiago Metropolitan, Chile
    801.7×
  133. 133Sham Shui PoSham Shui Po District, Hong Kong
    801.6×
  134. 133ŻywiecSilesia, Poland
    801.6×
  135. 135Dubailow-cost sensorsDubai, United Arab Emirates
    801.6×
  136. 135VictoriaCentral and Western, Hong Kong
    801.6×
  137. 137DhahranEastern Province, Saudi Arabia
    791.6×
  138. 137Yangp'yŏngGyeonggi-do, South Korea
    791.6×
  139. 137PubalGyeonggi-do, South Korea
    791.6×
  140. 137Winterthurlow-cost sensorsZurich, Switzerland
    791.6×
  141. 141ShanghaiShanghai, China
    791.6×
  142. 142FanlingNorth District, Hong Kong
    791.6×
  143. 143RacibórzSilesia, Poland
    791.6×
  144. 143ChiguayanteBiobio, Chile
    791.6×
  145. 145KristiansandAgder, Norway
    781.6×
  146. 146OtwockMazovia, Poland
    781.6×
  147. 146Sha TinSha Tin, Hong Kong
    781.6×
  148. 146Sau Mau PingKwun Tong District, Hong Kong
    781.6×
  149. 146Puerto del RosarioCanary Islands, Spain
    781.6×
  150. 146BailénAndalusia, Spain
    781.6×
  151. 146Ciudad NezahualcoyotlMéxico, Mexico
    781.6×
  152. 152OurenseGalicia, Spain
    781.6×
  153. 153CastresOccitanie, France
    781.6×
  154. 154Molina de SeguraMurcia, Spain
    771.5×
  155. 154Stodůlkylow-cost sensorsPrague, Czechia
    771.5×
  156. 154KranjUrban Municipality of Kranj, Slovenia
    771.5×
  157. 157ČadcaŽilina Region, Slovakia
    771.5×
  158. 157OpoleOpole Voivodeship, Poland
    771.5×
  159. 157Silao de la VictoriaGuanajuato, Mexico
    771.5×
  160. 160Novo MestoUrban Municipality of Novo Mesto, Slovenia
    771.5×
  161. 161ÉvreuxNormandy, France
    761.5×
  162. 162CoulommiersÎle-de-France, France
    761.5×
  163. 162LillehammerInnlandet, Norway
    761.5×
  164. 162SantiagoSantiago Metropolitan, Chile
    761.5×
  165. 165LeónCastille and León, Spain
    761.5×
  166. 166PrešovPrešov Region, Slovakia
    751.5×
  167. 166ParisÎle-de-France, France
    751.5×
  168. 168TocopillaAntofagasta, Chile
    751.5×
  169. 169CalexicoCalifornia, United States
    751.5×
  170. 170CoronelBiobio, Chile
    751.5×
  171. 170Ciudad Benito JuárezNuevo León, Mexico
    751.5×
  172. 172YeojuGyeonggi-do, South Korea
    751.5×
  173. 173AnaheimCalifornia, United States
    741.4×
  174. 174Hawthornelow-cost sensorsCalifornia, United States
    741.4×
  175. 175PristinaPristina, Kosovo
    741.4×
  176. 176Novi SadVojvodina, Serbia
    741.4×
  177. 176KoprivnicaKoprivnica-Križevci, Croatia
    741.4×
  178. 178DouliuTaiwan, Taiwan
    741.4×
  179. 178AricaArica y Parinacota Region, Chile
    741.4×
  180. 180KošiceKošice Region, Slovakia
    731.4×
  181. 181AntananarivoAnalamanga, Madagascar
    731.4×
  182. 181HwadoGyeonggi-do, South Korea
    731.4×
  183. 181Collado-VillalbaMadrid, Spain
    731.4×
  184. 181FairbanksAlaska, United States
    731.4×
  185. 185LinaresMaule Region, Chile
    731.4×
  186. 186ŁaskŁódź Voivodeship, Poland
    731.4×
  187. 186Naucalpan de JuárezMéxico, Mexico
    731.4×
  188. 186San DiegoCalifornia, United States
    731.4×
  189. 189BuyeoChungcheongnam-do, South Korea
    721.4×
  190. 189LimaLima Province, Peru
    721.4×
  191. 189Carsonlow-cost sensorsCalifornia, United States
    721.4×
  192. 192GumiGyeongsangbuk-do, South Korea
    721.4×
  193. 193TainanTaiwan, Taiwan
    721.4×
  194. 193YeongjuGyeongsangbuk-do, South Korea
    721.4×
  195. 193WŏnjuGangwon-do, South Korea
    721.4×
  196. 193KoesanNorth Chungcheong, South Korea
    721.4×
  197. 193Jastrzębie ZdrójSilesia, Poland
    721.4×
  198. 193Inglewoodlow-cost sensorsCalifornia, United States
    721.4×
  199. 199OsanGyeonggi-do, South Korea
    721.3×
  200. 199Le HavreNormandy, France
    721.3×

Top 200 of 2,329 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 4, 2025, smogrank.com/history/2025-01-04 (accessed 2 Oct 2026).

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