SmogRank / History / April 16, 2025

Most polluted cities on April 16, 2025

2,436 cities ranked by their average PM2.5 over the day; the worst was Delhi, India, at 82.1 µg/m³. Each city's own local calendar day.

← Delhi 82.1 µg/m³ 80 µg/m³15 WHO 24-hour guideline
Every city ranked for April 16, 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. 1DelhiDelhi, India
    1705.5×
  2. 2CoyhaiqueAysén, Chile
    1634.8×
  3. 3Ubon RatchathaniUbon Ratchathani, Thailand
    1594.5×
  4. 4VillarricaAraucania, Chile
    1584.3×
  5. 4ChillánÑuble, Chile
    1584.3×
  6. 6YasothonYasothon, Thailand
    1523.8×
  7. 7Islamabadlow-cost sensorsIslamabad, Pakistan
    1523.8×
  8. 8ShenyangLiaoning, China
    1453.6×
  9. 9NacimientoBiobio, Chile
    1393.4×
  10. 10MukdahanMukdahan, Thailand
    1343.3×
  11. 11Amnat CharoenAmnat Charoen, Thailand
    1343.3×
  12. 12San CarlosÑuble, Chile
    1343.2×
  13. 13TopekaKansas, United States
    1323.2×
  14. 14LinaresMaule Region, Chile
    1313.2×
  15. 15GuangzhouGuangdong, China
    1293.1×
  16. 16HualpénBiobio, Chile
    1263.0×
  17. 17San Pawl il-BaħarSaint Paul’s Bay, Malta
    1253.0×
  18. 18Victoria de DurangoDurango, Mexico
    1243.0×
  19. 19CuranilahueBiobio, Chile
    1243.0×
  20. 20HualquiBiobio, Chile
    1243.0×
  21. 21KalasinKalasin, Thailand
    1172.8×
  22. 21JakartaJakarta, Indonesia
    1172.8×
  23. 23Istanbullow-cost sensorsIstanbul, Turkey
    1142.7×
  24. 24Dubailow-cost sensorsDubai, United Arab Emirates
    1132.7×
  25. 25CallaoCallao, Peru
    1122.7×
  26. 26CuernavacaMorelos, Mexico
    1122.7×
  27. 27Roi EtRoi Et, Thailand
    1112.6×
  28. 28Los ÁngelesBiobio, Chile
    1082.6×
  29. 29SurinSurin, Thailand
    1072.5×
  30. 30Buri RamBuriram, Thailand
    1052.5×
  31. 30MostaIl-Mosta, Malta
    1052.5×
  32. 32Lop BuriLopburi, Thailand
    1052.5×
  33. 33Hacienda Santa FeJalisco, Mexico
    1042.4×
  34. 34Nakhon RatchasimaNakhon Ratchasima, Thailand
    1012.4×
  35. 35Si Sa KetSi Sa Ket, Thailand
    1012.4×
  36. 36LimaLima Province, Peru
    992.3×
  37. 37VallettaValletta, Malta
    992.3×
  38. 38Zacatepec de HidalgoMorelos, Mexico
    992.3×
  39. 39Sakon NakhonSakon Nakhon, Thailand
    982.3×
  40. 40Tuen MunTuen Mun, Hong Kong
    972.3×
  41. 40TalcaMaule Region, Chile
    972.3×
  42. 42Maha SarakhamMaha Sarakham, Thailand
    972.2×
  43. 43Vientianelow-cost sensorsVientiane Prefecture, Laos
    962.2×
  44. 43Wan ChaiWan Chai, Hong Kong
    962.2×
  45. 45ŻabbarĦaż-Żabbar, Malta
    962.2×
  46. 46Ciudad JuárezChihuahua, Mexico
    962.2×
  47. 47FanlingNorth District, Hong Kong
    952.2×
  48. 48TemucoAraucania, Chile
    952.2×
  49. 49Sing BuriSing Buri, Thailand
    952.2×
  50. 50San Francisco De BorjaLima region, Peru
    942.1×
  51. 51Ciudad NezahualcoyotlMéxico, Mexico
    942.1×
  52. 52Novi PazarCentral Serbia, Serbia
    942.1×
  53. 52El PasoTexas, United States
    942.1×
  54. 54SaltilloCoahuila, Mexico
    932.1×
  55. 55NegotinCentral Serbia, Serbia
    922.1×
  56. 55Nakhon LuangPhra Nakhon Si Ayutthaya, Thailand
    922.1×
  57. 57BuziTaiwan, Taiwan
    922.1×
  58. 58Quezon Citylow-cost sensorsNational Capital Region, Philippines
    912.1×
  59. 58CuricóMaule Region, Chile
    912.1×
  60. 60Mong KokYau Tsim Mong District, Hong Kong
    912.0×
  61. 61ZapopanJalisco, Mexico
    902.0×
  62. 62XizhouTaiwan, Taiwan
    902.0×
  63. 62Santa AnitaJalisco, Mexico
    902.0×
  64. 64PueblaPuebla, Mexico
    902.0×
  65. 65Samut SakhonSamut Sakhon, Thailand
    902.0×
  66. 66TlaquepaqueJalisco, Mexico
    892.0×
  67. 67GdyniaPomerania, Poland
    892.0×
  68. 68Sunland ParkNew Mexico, United States
    892.0×
  69. 68TaoyuanTaiwan, Taiwan
    892.0×
  70. 70ErlunTaiwan, Taiwan
    881.9×
  71. 71JinchengFukien, Taiwan
    881.9×
  72. 71CheorwonGangwon-do, South Korea
    881.9×
  73. 73PubalGyeonggi-do, South Korea
    871.9×
  74. 73Puerto AysénAysén, Chile
    871.9×
  75. 75OsornoLos Lagos Region, Chile
    871.9×
  76. 76ChaiyaphumChaiyaphum, Thailand
    861.9×
  77. 77Nong KhaemBangkok, Thailand
    861.9×
  78. 77ZhudongTaiwan, Taiwan
    861.9×
  79. 79TaichungTaiwan, Taiwan
    861.9×
  80. 80YuanlinTaiwan, Taiwan
    861.8×
  81. 80KaohsiungTakao, Taiwan
    861.8×
  82. 82Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    851.8×
  83. 82La UniónLos Ríos Region, Chile
    851.8×
  84. 82CoquimboCoquimbo Region, Chile
    851.8×
  85. 82ConcónValparaiso, Chile
    851.8×
  86. 82GuadalajaraJalisco, Mexico
    851.8×
  87. 82BellevueNebraska, United States
    851.8×
  88. 88Bang NaBangkok, Thailand
    851.8×
  89. 89BeigangTaiwan, Taiwan
    851.8×
  90. 89HsinchuTaiwan, Taiwan
    851.8×
  91. 91ChaozhouTaiwan, Taiwan
    851.8×
  92. 92TaipeiTaiwan, Taiwan
    851.8×
  93. 93DouliuTaiwan, Taiwan
    841.8×
  94. 93TainanTaiwan, Taiwan
    841.8×
  95. 95FengshanTakao, Taiwan
    841.8×
  96. 95New Taipei CityTaipei, Taiwan
    841.8×
  97. 97San Tung Chung HangIslands, Hong Kong
    841.8×
  98. 97Yangp'yŏngGyeonggi-do, South Korea
    841.8×
  99. 97GdańskPomerania, Poland
    841.8×
  100. 100ErlinTaiwan, Taiwan
    841.8×
  101. 100Puente AltoSantiago Metropolitan, Chile
    841.8×
  102. 102TaibaoTaiwan, Taiwan
    841.8×
  103. 102Saphan SungBangkok, Thailand
    841.8×
  104. 104NeiliTaiwan, Taiwan
    831.8×
  105. 104NantouTaiwan, Taiwan
    831.8×
  106. 104WŏnjuGangwon-do, South Korea
    831.8×
  107. 107ZhubeiTaiwan, Taiwan
    831.8×
  108. 107YeojuGyeonggi-do, South Korea
    831.8×
  109. 109PuliTaiwan, Taiwan
    831.8×
  110. 110ZhushanTaiwan, Taiwan
    831.7×
  111. 110ChanghuaTaiwan, Taiwan
    831.7×
  112. 112ToméBiobio, Chile
    831.7×
  113. 113Si Maha PhotPrachin Buri, Thailand
    821.7×
  114. 113XinyingTaiwan, Taiwan
    821.7×
  115. 113RancaguaO'Higgins Region, Chile
    821.7×
  116. 116Chiayi CityTaiwan, Taiwan
    821.7×
  117. 116HwadoGyeonggi-do, South Korea
    821.7×
  118. 118Tai PoTai Po, Hong Kong
    821.7×
  119. 118VictoriaCentral and Western, Hong Kong
    821.7×
  120. 120XizhiTaipei, Taiwan
    811.7×
  121. 121YongkangTaiwan, Taiwan
    811.7×
  122. 121SeonghwanChungcheongnam-do, South Korea
    811.7×
  123. 121BuyeoChungcheongnam-do, South Korea
    811.7×
  124. 121GumiGyeongsangbuk-do, South Korea
    811.7×
  125. 125SantiagoSantiago Metropolitan, Chile
    811.7×
  126. 126YeongjuGyeongsangbuk-do, South Korea
    811.7×
  127. 126Khlong Sam WaBangkok, Thailand
    811.7×
  128. 128Lak SiBangkok, Thailand
    811.7×
  129. 129ShulinTaipei, Taiwan
    801.7×
  130. 130BangkokBangkok, Thailand
    801.6×
  131. 130Mixquiahuala de JuárezHidalgo, Mexico
    801.6×
  132. 130La VistaNebraska, United States
    801.6×
  133. 133DaxiTaiwan, Taiwan
    801.6×
  134. 133KinzanChungcheongnam-do, South Korea
    801.6×
  135. 135GeojeGyeongsangnam-do, South Korea
    791.6×
  136. 136Suphan BuriSuphan Buri, Thailand
    791.6×
  137. 136Khlong LuangPathum Thani, Thailand
    791.6×
  138. 136GapyeongGyeonggi-do, South Korea
    791.6×
  139. 139ToufenTaiwan, Taiwan
    791.6×
  140. 139SulphurLouisiana, United States
    791.6×
  141. 141Kwai ChungKwai Tsing District, Hong Kong
    791.6×
  142. 141IrapuatoGuanajuato, Mexico
    791.6×
  143. 143NanNan, Thailand
    781.6×
  144. 143Uijeongbu-siGyeonggi-do, South Korea
    781.6×
  145. 143SeoulSeoul, South Korea
    781.6×
  146. 143Guri-siGyeonggi-do, South Korea
    781.6×
  147. 147Puerto VarasLos Lagos Region, Chile
    781.6×
  148. 148AranyaprathetSa Kaeo, Thailand
    781.6×
  149. 148GwangmyeongGyeonggi-do, South Korea
    781.6×
  150. 148TepicNayarit, Mexico
    781.6×
  151. 151Bang KapiBangkok, Thailand
    781.6×
  152. 151San Luis de la PazGuanajuato, Mexico
    781.6×
  153. 153Ban ChangRayong, Thailand
    771.6×
  154. 153SanzhiTaipei, Taiwan
    771.6×
  155. 153Icheon-siGyeonggi-do, South Korea
    771.6×
  156. 153Mexico CityMexico City, Mexico
    771.6×
  157. 153San Luis PotosíSan Luis Potosí, Mexico
    771.6×
  158. 158Bucheon-siGyeonggi-do, South Korea
    771.5×
  159. 159Sha TinSha Tin, Hong Kong
    771.5×
  160. 159ValdiviaLos Ríos Region, Chile
    771.5×
  161. 161ChungjuNorth Chungcheong, South Korea
    771.5×
  162. 162KuopioNorth Savo, Finland
    771.5×
  163. 162CoronelBiobio, Chile
    771.5×
  164. 162Lat KrabangBangkok, Thailand
    771.5×
  165. 162Santa Anita - Los FicusLima region, Peru
    771.5×
  166. 166YujingTaiwan, Taiwan
    761.5×
  167. 166MiaoliTaiwan, Taiwan
    761.5×
  168. 166OsanGyeonggi-do, South Korea
    761.5×
  169. 166QuillotaValparaiso, Chile
    761.5×
  170. 166GarcíaNuevo León, Mexico
    761.5×
  171. 171Tin Shui WaiYuen Long, Hong Kong
    761.5×
  172. 171UlsanUlsan, South Korea
    761.5×
  173. 171Gimpo-siGyeonggi-do, South Korea
    761.5×
  174. 171TalcahuanoBiobio, Chile
    761.5×
  175. 175RatchaburiRatchaburi, Thailand
    761.5×
  176. 175KanchanaburiKanchanaburi, Thailand
    761.5×
  177. 177MagongTaiwan, Taiwan
    761.5×
  178. 177JungpyongNorth Chungcheong, South Korea
    761.5×
  179. 177Stodůlkylow-cost sensorsPrague, Czechia
    761.5×
  180. 180IncheonIncheon, South Korea
    761.5×
  181. 180ChuncheonGangwon-do, South Korea
    761.5×
  182. 182Iloilolow-cost sensorsWestern Visayas, Philippines
    751.5×
  183. 182CopiapóAtacama, Chile
    751.5×
  184. 184Chrang Chamreh Muoylow-cost sensorsPhnom Penh, Cambodia
    751.5×
  185. 185Ban Samae DamBangkok, Thailand
    751.5×
  186. 185RengoO'Higgins Region, Chile
    751.5×
  187. 185Puerto MonttLos Lagos Region, Chile
    751.5×
  188. 188PhichitPhichit, Thailand
    751.5×
  189. 188Tsuen WanTsuen Wan, Hong Kong
    751.5×
  190. 188Hongch’ŏnGangwon-do, South Korea
    751.5×
  191. 191Tepeji del Río de OcampoHidalgo, Mexico
    751.5×
  192. 192Sham Shui PoSham Shui Po District, Hong Kong
    741.4×
  193. 192NeietsuGangwon-do, South Korea
    741.4×
  194. 192SocorroTexas, United States
    741.4×
  195. 195HongseongChungcheongnam-do, South Korea
    741.4×
  196. 195TallahasseeFlorida, United States
    741.4×
  197. 197KeelungTaiwan, Taiwan
    741.4×
  198. 197YangjuGyeonggi-do, South Korea
    741.4×
  199. 197TongyeongGyeongsangnam-do, South Korea
    741.4×
  200. 197SalamancaGuanajuato, Mexico
    741.4×

Top 200 of 2,436 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

Use this board

SmogRank, most polluted cities, PM2.5, April 16, 2025, smogrank.com/history/2025-04-16 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.