SmogRank / History / May 16, 2024

Most polluted cities on May 16, 2024

2,321 cities ranked by their average PM2.5 over the day; the worst was Osorno, Chile, at 275.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 16, 2024. All episodes.

← Osorno 275.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for May 16, 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. 1OsornoLos Lagos Region, Chile
    40018.3×
  2. 2CoyhaiqueAysén, Chile
    35716.9×
  3. 3Puerto VarasLos Lagos Region, Chile
    25712.1×
  4. 4Lahorelow-cost sensorsPunjab, Pakistan
    22910.3×
  5. 5NacimientoBiobio, Chile
    2169.4×
  6. 6La UniónLos Ríos Region, Chile
    1937.7×
  7. 7Puerto AysénAysén, Chile
    1856.9×
  8. 8DelhiDelhi, India
    1826.6×
  9. 9ValdiviaLos Ríos Region, Chile
    1806.5×
  10. 10Puerto MonttLos Lagos Region, Chile
    1796.4×
  11. 11JakartaJakarta, Indonesia
    1725.7×
  12. 12VillarricaAraucania, Chile
    1665.1×
  13. 13ChiguayanteBiobio, Chile
    1655.0×
  14. 14Santa Anita - Los FicusLima region, Peru
    1645.0×
  15. 15N'DjamenaN’Djaména, Chad
    1634.8×
  16. 16TlaquepaqueJalisco, Mexico
    1614.7×
  17. 17Los ÁngelesBiobio, Chile
    1584.4×
  18. 18CatañoCataño, Puerto Rico
    1574.3×
  19. 19BelmopanCayo District, Belize
    1574.2×
  20. 20MumbaiMaharashtra, India
    1564.2×
  21. 21CuranilahueBiobio, Chile
    1564.1×
  22. 22TemucoAraucania, Chile
    1533.9×
  23. 23Dhakalow-cost sensorsDhaka Division, Bangladesh
    1523.8×
  24. 24CauquenesMaule Region, Chile
    1513.7×
  25. 25Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1513.7×
  26. 26CuricóMaule Region, Chile
    1513.7×
  27. 27RengoO'Higgins Region, Chile
    1503.7×
  28. 28CholulaPuebla, Mexico
    1483.6×
  29. 28RancaguaO'Higgins Region, Chile
    1483.6×
  30. 30MissionTexas, United States
    1403.4×
  31. 31ChillánÑuble, Chile
    1383.4×
  32. 32San CarlosÑuble, Chile
    1383.4×
  33. 33HualpénBiobio, Chile
    1373.3×
  34. 34HanoiHanoi, Vietnam
    1293.1×
  35. 35EdinburgTexas, United States
    1283.1×
  36. 36TalcaMaule Region, Chile
    1253.0×
  37. 37TalaganteSantiago Metropolitan, Chile
    1233.0×
  38. 38SantiagoSantiago Metropolitan, Chile
    1202.9×
  39. 38QuillotaValparaiso, Chile
    1202.9×
  40. 40Heroica MatamorosTamaulipas, Mexico
    1162.8×
  41. 41QuilpuéValparaiso, Chile
    1162.8×
  42. 42CoronelBiobio, Chile
    1152.8×
  43. 43Islamabadlow-cost sensorsIslamabad, Pakistan
    1132.7×
  44. 43TalcahuanoBiobio, Chile
    1132.7×
  45. 45Corpus ChristiTexas, United States
    1092.6×
  46. 46Bang NaBangkok, Thailand
    1082.6×
  47. 47BaghdadBaghdad, Iraq
    1052.5×
  48. 48La SerenaCoquimbo Region, Chile
    1042.4×
  49. 49Kathmandulow-cost sensorsBagmati Province, Nepal
    1032.4×
  50. 50NanNan, Thailand
    1012.4×
  51. 51Khlong Sam WaBangkok, Thailand
    992.3×
  52. 52Laem ChabangChon Buri, Thailand
    992.3×
  53. 53ŻabbarĦaż-Żabbar, Malta
    982.3×
  54. 54BeijingBeijing, China
    972.3×
  55. 55MostaIl-Mosta, Malta
    962.2×
  56. 56Addis AbabaAddis Ababa, Ethiopia
    952.2×
  57. 57CoquimboCoquimbo Region, Chile
    952.2×
  58. 58Kampalalow-cost sensorsCentral Region, Uganda
    942.2×
  59. 59GuangzhouGuangdong, China
    942.1×
  60. 60BendOregon, United States
    942.1×
  61. 61HyderabadTelangana, India
    932.1×
  62. 62QuinteroValparaiso, Chile
    922.1×
  63. 63VallettaValletta, Malta
    922.1×
  64. 64ManamaManama, Bahrain
    922.1×
  65. 64DushanbeDushanbe, Tajikistan
    922.1×
  66. 66Sing BuriSing Buri, Thailand
    912.0×
  67. 67Mae SaiChiang Rai, Thailand
    912.0×
  68. 67Eagle PassTexas, United States
    912.0×
  69. 69Puente AltoSantiago Metropolitan, Chile
    902.0×
  70. 70Saphan SungBangkok, Thailand
    902.0×
  71. 71San Pawl il-BaħarSaint Paul’s Bay, Malta
    902.0×
  72. 72KalasinKalasin, Thailand
    902.0×
  73. 73ConcónValparaiso, Chile
    892.0×
  74. 74Lak SiBangkok, Thailand
    892.0×
  75. 75Khlong LuangPathum Thani, Thailand
    892.0×
  76. 76Khan Na YaoBangkok, Thailand
    881.9×
  77. 77Roi EtRoi Et, Thailand
    881.9×
  78. 78PueblaPuebla, Mexico
    871.9×
  79. 79CairoCairo, Egypt
    871.9×
  80. 79Mueang NonthaburiNonthaburi, Thailand
    871.9×
  81. 81Bang KapiBangkok, Thailand
    871.9×
  82. 82Ubon RatchathaniUbon Ratchathani, Thailand
    871.9×
  83. 82Nakhon RatchasimaNakhon Ratchasima, Thailand
    871.9×
  84. 82Viña del MarValparaiso, Chile
    871.9×
  85. 82CelayaGuanajuato, Mexico
    871.9×
  86. 86Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    861.9×
  87. 86Khon KaenKhon Kaen, Thailand
    861.9×
  88. 88MukdahanMukdahan, Thailand
    861.9×
  89. 88LimaLima Province, Peru
    861.9×
  90. 90Lop BuriLopburi, Thailand
    851.8×
  91. 90Vientianelow-cost sensorsVientiane Prefecture, Laos
    851.8×
  92. 92Ban Samae DamBangkok, Thailand
    851.8×
  93. 92AntofagastaAntofagasta, Chile
    851.8×
  94. 94YasothonYasothon, Thailand
    851.8×
  95. 94San Francisco De BorjaLima region, Peru
    851.8×
  96. 96Ban ChangRayong, Thailand
    851.8×
  97. 96San Pedro de la PazBiobio, Chile
    851.8×
  98. 98Nong KhaemBangkok, Thailand
    841.8×
  99. 98BangkokBangkok, Thailand
    841.8×
  100. 100Abujalow-cost sensorsFCT, Nigeria
    841.8×
  101. 101ToméBiobio, Chile
    831.7×
  102. 102RatchaburiRatchaburi, Thailand
    831.7×
  103. 102Sai MaiBangkok, Thailand
    831.7×
  104. 104ShanghaiShanghai, China
    821.7×
  105. 105Lat KrabangBangkok, Thailand
    821.7×
  106. 106MéridaYucatán, Mexico
    821.7×
  107. 107Wan ChaiWan Chai, Hong Kong
    811.7×
  108. 108Ban Khlong PrawetBangkok, Thailand
    811.7×
  109. 108ZhushanTaiwan, Taiwan
    811.7×
  110. 110Nong ChokBangkok, Thailand
    811.7×
  111. 111VilniusVilnius, Lithuania
    811.7×
  112. 112Chiang MaiChiang Mai, Thailand
    801.7×
  113. 113LampangLampang, Thailand
    801.7×
  114. 114Si Maha PhotPrachin Buri, Thailand
    801.6×
  115. 115Phra PradaengSamut Prakan, Thailand
    801.6×
  116. 115Bang Bo DistrictSamut Prakan, Thailand
    801.6×
  117. 115YongkangTaiwan, Taiwan
    801.6×
  118. 118Şabāḩ as SālimMubārak al Kabīr, Kuwait
    801.6×
  119. 118Amnat CharoenAmnat Charoen, Thailand
    801.6×
  120. 120CopiapóAtacama, Chile
    791.6×
  121. 120Santiago de QuerétaroQuerétaro, Mexico
    791.6×
  122. 122Ban Talat BuengChon Buri, Thailand
    791.6×
  123. 122TocopillaAntofagasta, Chile
    791.6×
  124. 124SukhothaiSukhothai, Thailand
    781.6×
  125. 124SurinSurin, Thailand
    781.6×
  126. 124Nong Bua LamphuNong Bua Lamphu, Thailand
    781.6×
  127. 127TainanTaiwan, Taiwan
    781.6×
  128. 128San ClementeIca, Peru
    781.6×
  129. 128San Luis de la PazGuanajuato, Mexico
    781.6×
  130. 130PhraePhrae, Thailand
    781.6×
  131. 131UttaraditUttaradit, Thailand
    781.6×
  132. 131SaraburiSaraburi, Thailand
    781.6×
  133. 131DouliuTaiwan, Taiwan
    781.6×
  134. 131Chiayi CityTaiwan, Taiwan
    781.6×
  135. 135FengshanTakao, Taiwan
    771.5×
  136. 136PhayaoPhayao, Thailand
    771.5×
  137. 136AricaArica y Parinacota Region, Chile
    771.5×
  138. 138MaputoMaputo City, Mozambique
    771.5×
  139. 138Nakhon NayokNakhon Nayok, Thailand
    771.5×
  140. 140SarajevoFederation of B&H, Bosnia and Herzegovina
    771.5×
  141. 141RabinalBaja Verapaz, Guatemala
    761.5×
  142. 142Udon ThaniUdon Thani, Thailand
    761.5×
  143. 142Tuen MunTuen Mun, Hong Kong
    761.5×
  144. 144KanchanaburiKanchanaburi, Thailand
    761.5×
  145. 144Chai NatChai Nat, Thailand
    761.5×
  146. 146PuliTaiwan, Taiwan
    751.5×
  147. 146KaohsiungTakao, Taiwan
    751.5×
  148. 148RayongRayong, Thailand
    741.4×
  149. 148Falconara MarittimaThe Marches, Italy
    741.4×
  150. 148IndioCalifornia, United States
    741.4×
  151. 151NaplesCampania, Italy
    741.4×
  152. 151Villa Poeta José Gálvez BarrenecheaLima region, Peru
    741.4×
  153. 151Silao de la VictoriaGuanajuato, Mexico
    741.4×
  154. 154Kamphaeng PhetKamphaeng Phet, Thailand
    741.4×
  155. 155LamphunLamphun, Thailand
    741.4×
  156. 155Chiang RaiChiang Rai, Thailand
    741.4×
  157. 155Si Sa KetSi Sa Ket, Thailand
    741.4×
  158. 155ChaozhouTaiwan, Taiwan
    741.4×
  159. 159IrapuatoGuanajuato, Mexico
    741.4×
  160. 159Bonita SpringsFlorida, United States
    741.4×
  161. 161Samut PrakanSamut Prakan, Thailand
    741.4×
  162. 161ChaiyaphumChaiyaphum, Thailand
    741.4×
  163. 161Fort LauderdaleFlorida, United States
    741.4×
  164. 161MiamiFlorida, United States
    741.4×
  165. 165ErlunTaiwan, Taiwan
    731.4×
  166. 166Mong KokYau Tsim Mong District, Hong Kong
    731.4×
  167. 166Accralow-cost sensorsGreater Accra, Ghana
    731.4×
  168. 168SalernoCampania, Italy
    731.4×
  169. 168TexarkanaTexas, United States
    731.4×
  170. 170Guatemala CityGuatemala, Guatemala
    731.4×
  171. 171BeigangTaiwan, Taiwan
    731.4×
  172. 172Belle GladeFlorida, United States
    721.4×
  173. 173Novi PazarCentral Serbia, Serbia
    721.4×
  174. 174ShreveportLouisiana, United States
    711.3×
  175. 175Nakhon PathomNakhon Pathom, Thailand
    711.3×
  176. 175YuanlinTaiwan, Taiwan
    711.3×
  177. 175AnconaThe Marches, Italy
    711.3×
  178. 178PhichitPhichit, Thailand
    711.3×
  179. 179Nakhon SawanNakhon Sawan, Thailand
    711.3×
  180. 179TaibaoTaiwan, Taiwan
    711.3×
  181. 179ErlinTaiwan, Taiwan
    711.3×
  182. 182San Juan del RíoQuerétaro, Mexico
    701.3×
  183. 183León de los AldamaGuanajuato, Mexico
    701.3×
  184. 183Coconut CreekFlorida, United States
    701.3×
  185. 183Fort McMurrayAlberta, Canada
    701.3×
  186. 186ToufenTaiwan, Taiwan
    701.3×
  187. 186Sau Mau PingKwun Tong District, Hong Kong
    701.3×
  188. 186McAlesterOklahoma, United States
    701.3×
  189. 189Tai PoTai Po, Hong Kong
    701.3×
  190. 189FabrianoThe Marches, Italy
    701.3×
  191. 189HomesteadFlorida, United States
    701.3×
  192. 192ShulinTaipei, Taiwan
    691.3×
  193. 193Suphan BuriSuphan Buri, Thailand
    691.3×
  194. 194AntananarivoAnalamanga, Madagascar
    691.3×
  195. 194Buri RamBuriram, Thailand
    691.3×
  196. 196LoeiLoei, Thailand
    691.2×
  197. 196Quezon Citylow-cost sensorsNational Capital Region, Philippines
    691.2×
  198. 198RangioraCanterbury, New Zealand
    691.2×
  199. 199Jacobo HunterArequipa, Peru
    691.2×
  200. 200NantouTaiwan, Taiwan
    681.2×

Top 200 of 2,321 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, May 16, 2024, smogrank.com/history/2024-05-16 (accessed 3 Oct 2026).

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