SmogRank / History / April 10, 2025

Most polluted cities on April 10, 2025

2,427 cities ranked by their average PM2.5 over the day; the worst was Santa Anita, Mexico, at 504.0 µg/m³. Each city's own local calendar day.

← Santa Anita 504.0 µg/m³ 500 µg/m³15 WHO 24-hour guideline
Every city ranked for April 10, 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. 1Santa AnitaJalisco, Mexico
    500+33.6×
  2. 2Mae SaiChiang Rai, Thailand
    1968.0×
  3. 4CoyhaiqueAysén, Chile
    1675.2×
  4. 5TocopillaAntofagasta, Chile
    1644.9×
  5. 6Chiang RaiChiang Rai, Thailand
    1624.8×
  6. 7DelhiDelhi, India
    1594.5×
  7. 8Ubon RatchathaniUbon Ratchathani, Thailand
    1544.0×
  8. 9ZaječarCentral Serbia, Serbia
    1513.7×
  9. 10AguascalientesAguascalientes, Mexico
    1443.5×
  10. 11NanNan, Thailand
    1393.4×
  11. 12PhayaoPhayao, Thailand
    1373.3×
  12. 13Chiang MaiChiang Mai, Thailand
    1323.2×
  13. 14VillarricaAraucania, Chile
    1303.2×
  14. 15ShenyangLiaoning, China
    1283.1×
  15. 16Amnat CharoenAmnat Charoen, Thailand
    1253.0×
  16. 17MukdahanMukdahan, Thailand
    1253.0×
  17. 18JakartaJakarta, Indonesia
    1222.9×
  18. 19KruševacCentral Serbia, Serbia
    1182.8×
  19. 20Vientianelow-cost sensorsVientiane Prefecture, Laos
    1172.8×
  20. 21LeskovacCentral Serbia, Serbia
    1122.7×
  21. 22VranjeCentral Serbia, Serbia
    1082.6×
  22. 23Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    1082.6×
  23. 24Victoria de DurangoDurango, Mexico
    1072.5×
  24. 25Puente AltoSantiago Metropolitan, Chile
    1052.5×
  25. 26Islamabadlow-cost sensorsIslamabad, Pakistan
    1042.5×
  26. 27LamphunLamphun, Thailand
    1042.4×
  27. 28LampangLampang, Thailand
    1032.4×
  28. 29PhraePhrae, Thailand
    1032.4×
  29. 30TlaquepaqueJalisco, Mexico
    1032.4×
  30. 31KalasinKalasin, Thailand
    1012.4×
  31. 32Dubailow-cost sensorsDubai, United Arab Emirates
    1012.4×
  32. 33GumiGyeongsangbuk-do, South Korea
    992.3×
  33. 34Roi EtRoi Et, Thailand
    972.3×
  34. 35Sing BuriSing Buri, Thailand
    962.2×
  35. 36ProkupljeCentral Serbia, Serbia
    952.2×
  36. 36Accralow-cost sensorsGreater Accra, Ghana
    952.2×
  37. 38PoitiersNew Aquitaine, France
    942.1×
  38. 38Banja LukaSrpska, Bosnia and Herzegovina
    942.1×
  39. 40KinzanChungcheongnam-do, South Korea
    942.1×
  40. 41GwangmyeongGyeonggi-do, South Korea
    932.1×
  41. 42UttaraditUttaradit, Thailand
    932.1×
  42. 43NišCentral Serbia, Serbia
    932.1×
  43. 43Bang NaBangkok, Thailand
    932.1×
  44. 45MiryangGyeongsangnam-do, South Korea
    922.1×
  45. 45TemucoAraucania, Chile
    922.1×
  46. 47JungpyongNorth Chungcheong, South Korea
    922.1×
  47. 48SeoulSeoul, South Korea
    922.1×
  48. 49Ban ChangRayong, Thailand
    922.1×
  49. 49Ansan-siGyeonggi-do, South Korea
    922.1×
  50. 51GuangzhouGuangdong, China
    912.1×
  51. 52SantiagoSantiago Metropolitan, Chile
    912.0×
  52. 53Guri-siGyeonggi-do, South Korea
    912.0×
  53. 53Gimpo-siGyeonggi-do, South Korea
    912.0×
  54. 55UlsanUlsan, South Korea
    902.0×
  55. 56Bucheon-siGyeonggi-do, South Korea
    902.0×
  56. 57Bang Pakonglow-cost sensorsChachoengsao, Thailand
    902.0×
  57. 57IncheonIncheon, South Korea
    902.0×
  58. 57TongyeongGyeongsangnam-do, South Korea
    902.0×
  59. 57Hacienda Santa FeJalisco, Mexico
    902.0×
  60. 61YeonilGyeongsangbuk-do, South Korea
    902.0×
  61. 61Ganghwa-gunIncheon, South Korea
    902.0×
  62. 63Sakon NakhonSakon Nakhon, Thailand
    892.0×
  63. 63NichelinoPiedmont, Italy
    892.0×
  64. 65RancaguaO'Higgins Region, Chile
    892.0×
  65. 66RatchaburiRatchaburi, Thailand
    892.0×
  66. 66Nakhon RatchasimaNakhon Ratchasima, Thailand
    892.0×
  67. 68ChennaiTamil Nadu, India
    892.0×
  68. 69Puerto AysénAysén, Chile
    881.9×
  69. 70KanchanaburiKanchanaburi, Thailand
    881.9×
  70. 70PohangGyeongsangbuk-do, South Korea
    881.9×
  71. 70ValjevoCentral Serbia, Serbia
    881.9×
  72. 70ShikokuchūōEhime, Japan
    881.9×
  73. 74Goyang-siGyeonggi-do, South Korea
    881.9×
  74. 74CholulaPuebla, Mexico
    881.9×
  75. 76Chai NatChai Nat, Thailand
    881.9×
  76. 77SeonghwanChungcheongnam-do, South Korea
    881.9×
  77. 78Hwaseong-siGyeonggi-do, South Korea
    871.9×
  78. 79SukhothaiSukhothai, Thailand
    871.9×
  79. 79ChangsuJeollabuk-do, South Korea
    871.9×
  80. 81KoesanNorth Chungcheong, South Korea
    871.9×
  81. 81QuinteroValparaiso, Chile
    871.9×
  82. 83WaegwanGyeongsangbuk-do, South Korea
    871.9×
  83. 83IksanJeollabuk-do, South Korea
    871.9×
  84. 83HayangGyeongsangbuk-do, South Korea
    871.9×
  85. 86Cadereyta JiménezNuevo León, Mexico
    861.9×
  86. 87KraljevoCentral Serbia, Serbia
    861.9×
  87. 87Kamphaeng PhetKamphaeng Phet, Thailand
    861.9×
  88. 87DaeguDaegu, South Korea
    861.9×
  89. 90YeongdongNorth Chungcheong, South Korea
    861.9×
  90. 91ConcónValparaiso, Chile
    861.9×
  91. 91CallaoCallao, Peru
    861.9×
  92. 93Khlong Sam WaBangkok, Thailand
    861.8×
  93. 94AsanChungcheongnam-do, South Korea
    851.8×
  94. 95OsanGyeonggi-do, South Korea
    851.8×
  95. 96SuwonGyeonggi-do, South Korea
    851.8×
  96. 97PubalGyeonggi-do, South Korea
    851.8×
  97. 97Medina Estateslow-cost sensorsGreater Accra, Ghana
    851.8×
  98. 97Los ÁngelesBiobio, Chile
    851.8×
  99. 100SremčicaCentral Serbia, Serbia
    851.8×
  100. 100PožarevacCentral Serbia, Serbia
    851.8×
  101. 102LazarevacCentral Serbia, Serbia
    841.8×
  102. 102LinaresMaule Region, Chile
    841.8×
  103. 104TangjinChungcheongnam-do, South Korea
    841.8×
  104. 104AnseongGyeonggi-do, South Korea
    841.8×
  105. 104OsornoLos Lagos Region, Chile
    841.8×
  106. 107PhichitPhichit, Thailand
    841.8×
  107. 107Lop BuriLopburi, Thailand
    841.8×
  108. 107HwawŏnDaegu, South Korea
    841.8×
  109. 107ChillánÑuble, Chile
    841.8×
  110. 111Maha SarakhamMaha Sarakham, Thailand
    841.8×
  111. 113ĆuprijaCentral Serbia, Serbia
    841.8×
  112. 113Anyang-siGyeonggi-do, South Korea
    841.8×
  113. 113ValdostaGeorgia, United States
    841.8×
  114. 116YeongjuGyeongsangbuk-do, South Korea
    831.8×
  115. 117GimcheonGyeongsangbuk-do, South Korea
    831.8×
  116. 117La UniónLos Ríos Region, Chile
    831.8×
  117. 117CuricóMaule Region, Chile
    831.8×
  118. 117LimaLima Province, Peru
    831.8×
  119. 121HanamGyeonggi-do, South Korea
    831.7×
  120. 122Gyeongsan-siGyeongsangbuk-do, South Korea
    821.7×
  121. 123Nong KhaemBangkok, Thailand
    821.7×
  122. 123LoeiLoei, Thailand
    821.7×
  123. 123CuranilahueBiobio, Chile
    821.7×
  124. 123GuadalajaraJalisco, Mexico
    821.7×
  125. 127Uijeongbu-siGyeonggi-do, South Korea
    821.7×
  126. 127PyeongtaekGyeonggi-do, South Korea
    821.7×
  127. 127KimhaeGyeongsangnam-do, South Korea
    821.7×
  128. 130Nakhon LuangPhra Nakhon Si Ayutthaya, Thailand
    821.7×
  129. 130YeojuGyeonggi-do, South Korea
    821.7×
  130. 130WanjuJeollabuk-do, South Korea
    821.7×
  131. 130San CarlosÑuble, Chile
    821.7×
  132. 134Cheongsong gunGyeongsangbuk-do, South Korea
    821.7×
  133. 135ChaiyaphumChaiyaphum, Thailand
    821.7×
  134. 135BusanBusan, South Korea
    821.7×
  135. 135NamsaJeollabuk-do, South Korea
    821.7×
  136. 135KimjeJeollabuk-do, South Korea
    821.7×
  137. 139ChinjuGyeongsangnam-do, South Korea
    811.7×
  138. 139AndongGyeongsangbuk-do, South Korea
    811.7×
  139. 139Lat KrabangBangkok, Thailand
    811.7×
  140. 142GunsanJeollabuk-do, South Korea
    811.7×
  141. 143CheorwonGangwon-do, South Korea
    811.7×
  142. 144NajuJeollanam-do, South Korea
    811.7×
  143. 144KunwiGyeongsangbuk-do, South Korea
    811.7×
  144. 144ChungjuNorth Chungcheong, South Korea
    811.7×
  145. 144Kan’onjichōKagawa, Japan
    811.7×
  146. 148ZemunCentral Serbia, Serbia
    811.7×
  147. 148ObrenovacCentral Serbia, Serbia
    811.7×
  148. 148BuanJeollabuk-do, South Korea
    811.7×
  149. 148TurinPiedmont, Italy
    811.7×
  150. 152Suphan BuriSuphan Buri, Thailand
    801.7×
  151. 152GoseongGyeongsangnam-do, South Korea
    801.7×
  152. 154YŏnmuChungcheongnam-do, South Korea
    801.7×
  153. 154OriaBasque Country, Spain
    801.7×
  154. 156NangenJeollabuk-do, South Korea
    801.6×
  155. 157PirotCentral Serbia, Serbia
    801.6×
  156. 157Ciudad JuárezChihuahua, Mexico
    801.6×
  157. 157JeongeupJeollabuk-do, South Korea
    801.6×
  158. 160SaijōEhime, Japan
    801.6×
  159. 160Lak SiBangkok, Thailand
    801.6×
  160. 162AnanTokushima, Japan
    801.6×
  161. 162Saphan SungBangkok, Thailand
    801.6×
  162. 164GwangjuGwangju, South Korea
    791.6×
  163. 164QuillotaValparaiso, Chile
    791.6×
  164. 166MasanGwangju, South Korea
    791.6×
  165. 166Seongnam-siGyeonggi-do, South Korea
    791.6×
  166. 168Jinan-gunJeollabuk-do, South Korea
    791.6×
  167. 169MunsanGyeonggi-do, South Korea
    791.6×
  168. 169GyeongjuGyeongsangbuk-do, South Korea
    791.6×
  169. 169NaesŏGyeongsangnam-do, South Korea
    791.6×
  170. 169RoveretoTrentino-Alto Adige, Italy
    791.6×
  171. 173TamanoOkayama, Japan
    791.6×
  172. 173AricaArica y Parinacota Region, Chile
    791.6×
  173. 173HadongGyeongsangnam-do, South Korea
    791.6×
  174. 176SangjuGyeongsangbuk-do, South Korea
    781.6×
  175. 176SantyokuGangwon-do, South Korea
    781.6×
  176. 176UngsangGyeongsangnam-do, South Korea
    781.6×
  177. 176NacimientoBiobio, Chile
    781.6×
  178. 176ChangnyeongGyeongsangnam-do, South Korea
    781.6×
  179. 181ImabariEhime, Japan
    781.6×
  180. 182Si Maha PhotPrachin Buri, Thailand
    781.6×
  181. 182BangkokBangkok, Thailand
    781.6×
  182. 182ImsilJeollabuk-do, South Korea
    781.6×
  183. 182CheonanChungcheongnam-do, South Korea
    781.6×
  184. 182ChangwonGyeongsangnam-do, South Korea
    781.6×
  185. 182Alcalá de GuadairaAndalusia, Spain
    781.6×
  186. 188DushanbeDushanbe, Tajikistan
    781.6×
  187. 188YangsanGyeongsangnam-do, South Korea
    781.6×
  188. 188MarugameKagawa, Japan
    781.6×
  189. 188CoquimboCoquimbo Region, Chile
    781.6×
  190. 192PhetchaburiPhetchaburi, Thailand
    781.6×
  191. 192Bang KapiBangkok, Thailand
    781.6×
  192. 192JinchengFukien, Taiwan
    781.6×
  193. 192Quezon Citylow-cost sensorsNational Capital Region, Philippines
    781.6×
  194. 192GijangBusan, South Korea
    781.6×
  195. 197OkcheonNorth Chungcheong, South Korea
    771.6×
  196. 197RengoO'Higgins Region, Chile
    771.6×
  197. 197Ciudad Benito JuárezNuevo León, Mexico
    771.6×
  198. 200PančevoVojvodina, Serbia
    771.5×

Top 200 of 2,427 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, April 10, 2025, smogrank.com/history/2025-04-10 (accessed 2 Oct 2026).

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