SmogRank / History / May 15, 2024

Most polluted cities on May 15, 2024

2,324 cities ranked by their average PM2.5 over the day; the worst was Coyhaique, Chile, at 386.5 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 15, 2024. All episodes.

← Coyhaique 386.5 µg/m³ 300 µg/m³15 WHO 24-hour guideline
Every city ranked for May 15, 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. 1CoyhaiqueAysén, Chile
    500+25.8×
  2. 2Ceglie MessapicaApulia, Italy
    31215.4×
  3. 3N'DjamenaN’Djaména, Chad
    22610.1×
  4. 4HualpénBiobio, Chile
    2048.6×
  5. 5OsornoLos Lagos Region, Chile
    2038.5×
  6. 6CuranilahueBiobio, Chile
    1978.1×
  7. 7NacimientoBiobio, Chile
    1968.0×
  8. 8Los ÁngelesBiobio, Chile
    1968.0×
  9. 9MumbaiMaharashtra, India
    1917.5×
  10. 10DelhiDelhi, India
    1887.2×
  11. 11TalcahuanoBiobio, Chile
    1856.9×
  12. 12Lahorelow-cost sensorsPunjab, Pakistan
    1826.7×
  13. 13VillarricaAraucania, Chile
    1776.2×
  14. 14CoronelBiobio, Chile
    1776.2×
  15. 15CuricóMaule Region, Chile
    1745.9×
  16. 16ChillánÑuble, Chile
    1745.9×
  17. 17Santa Anita - Los FicusLima region, Peru
    1725.7×
  18. 18Fort McMurrayAlberta, Canada
    1705.5×
  19. 19Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1644.9×
  20. 20La UniónLos Ríos Region, Chile
    1634.8×
  21. 21BelmopanCayo District, Belize
    1624.8×
  22. 22ChiguayanteBiobio, Chile
    1614.7×
  23. 23Dhakalow-cost sensorsDhaka Division, Bangladesh
    1614.6×
  24. 24TalcaMaule Region, Chile
    1604.6×
  25. 25JakartaJakarta, Indonesia
    1574.3×
  26. 26TemucoAraucania, Chile
    1574.2×
  27. 27RengoO'Higgins Region, Chile
    1564.2×
  28. 28Puerto MonttLos Lagos Region, Chile
    1564.2×
  29. 29CauquenesMaule Region, Chile
    1544.0×
  30. 30San CarlosÑuble, Chile
    1513.7×
  31. 31QuillotaValparaiso, Chile
    1463.6×
  32. 32TlaquepaqueJalisco, Mexico
    1443.5×
  33. 33SantiagoSantiago Metropolitan, Chile
    1433.5×
  34. 34Puerto VarasLos Lagos Region, Chile
    1423.5×
  35. 35TalaganteSantiago Metropolitan, Chile
    1403.4×
  36. 36Puerto AysénAysén, Chile
    1393.4×
  37. 37RancaguaO'Higgins Region, Chile
    1383.4×
  38. 38CatañoCataño, Puerto Rico
    1373.4×
  39. 39Kathmandulow-cost sensorsBagmati Province, Nepal
    1323.2×
  40. 40Nong KhaemBangkok, Thailand
    1283.1×
  41. 41San Pedro de la PazBiobio, Chile
    1283.1×
  42. 42Ban Samae DamBangkok, Thailand
    1273.1×
  43. 43Puente AltoSantiago Metropolitan, Chile
    1263.1×
  44. 44QuilpuéValparaiso, Chile
    1243.0×
  45. 45Ciudad Benito JuárezNuevo León, Mexico
    1243.0×
  46. 46ValdiviaLos Ríos Region, Chile
    1243.0×
  47. 47QuinteroValparaiso, Chile
    1243.0×
  48. 48CelayaGuanajuato, Mexico
    1212.9×
  49. 49ToméBiobio, Chile
    1172.8×
  50. 50Bang NaBangkok, Thailand
    1132.7×
  51. 51Khlong Sam WaBangkok, Thailand
    1102.6×
  52. 52MonterreyNuevo León, Mexico
    1062.5×
  53. 53Ciudad ApodacaNuevo León, Mexico
    1062.5×
  54. 54LimaLima Province, Peru
    1052.5×
  55. 55Mae SaiChiang Rai, Thailand
    1052.5×
  56. 56MissionTexas, United States
    1042.4×
  57. 57HyderabadTelangana, India
    1032.4×
  58. 57ConcónValparaiso, Chile
    1032.4×
  59. 59Mueang NonthaburiNonthaburi, Thailand
    1022.4×
  60. 60Laem ChabangChon Buri, Thailand
    1012.4×
  61. 61Ulan BatorUlaanbaatar, Mongolia
    1002.3×
  62. 62CairoCairo, Egypt
    992.3×
  63. 62Lak SiBangkok, Thailand
    992.3×
  64. 64La SerenaCoquimbo Region, Chile
    982.3×
  65. 65Viña del MarValparaiso, Chile
    972.2×
  66. 66BangkokBangkok, Thailand
    962.2×
  67. 67San Juan del RíoQuerétaro, Mexico
    962.2×
  68. 67San Luis de la PazGuanajuato, Mexico
    962.2×
  69. 69Cadereyta JiménezNuevo León, Mexico
    952.2×
  70. 70Khan Na YaoBangkok, Thailand
    952.2×
  71. 71Islamabadlow-cost sensorsIslamabad, Pakistan
    952.2×
  72. 72RatchaburiRatchaburi, Thailand
    942.2×
  73. 72Tula de AllendeHidalgo, Mexico
    942.2×
  74. 74SurinSurin, Thailand
    942.1×
  75. 75BaghdadBaghdad, Iraq
    922.1×
  76. 75Ubon RatchathaniUbon Ratchathani, Thailand
    922.1×
  77. 77Addis AbabaAddis Ababa, Ethiopia
    922.1×
  78. 77Sai MaiBangkok, Thailand
    922.1×
  79. 79Şabāḩ as SālimMubārak al Kabīr, Kuwait
    912.1×
  80. 80Phra PradaengSamut Prakan, Thailand
    912.0×
  81. 80NanNan, Thailand
    912.0×
  82. 80Santa CatarinaNuevo León, Mexico
    912.0×
  83. 83GuangzhouGuangdong, China
    912.0×
  84. 84HanoiHanoi, Vietnam
    902.0×
  85. 84Saphan SungBangkok, Thailand
    902.0×
  86. 86MukdahanMukdahan, Thailand
    902.0×
  87. 86San Miguel de AllendeGuanajuato, Mexico
    902.0×
  88. 88Nakhon RatchasimaNakhon Ratchasima, Thailand
    902.0×
  89. 88Ponca CityOklahoma, United States
    902.0×
  90. 88San Francisco De BorjaLima region, Peru
    902.0×
  91. 91ZhushanTaiwan, Taiwan
    902.0×
  92. 92Ban ChangRayong, Thailand
    892.0×
  93. 93KalasinKalasin, Thailand
    892.0×
  94. 93TocopillaAntofagasta, Chile
    892.0×
  95. 95EdinburgTexas, United States
    881.9×
  96. 96RabinalBaja Verapaz, Guatemala
    881.9×
  97. 97Guatemala CityGuatemala, Guatemala
    871.9×
  98. 98Khlong LuangPathum Thani, Thailand
    861.9×
  99. 99Ban Talat BuengChon Buri, Thailand
    851.8×
  100. 99MéridaYucatán, Mexico
    851.8×
  101. 101Roi EtRoi Et, Thailand
    851.8×
  102. 102Bang KapiBangkok, Thailand
    841.8×
  103. 102BendOregon, United States
    841.8×
  104. 104IrapuatoGuanajuato, Mexico
    841.8×
  105. 104Lat KrabangBangkok, Thailand
    841.8×
  106. 106Vientianelow-cost sensorsVientiane Prefecture, Laos
    831.8×
  107. 106AntofagastaAntofagasta, Chile
    831.8×
  108. 106Jacobo HunterArequipa, Peru
    831.8×
  109. 106Ciudad General EscobedoNuevo León, Mexico
    831.8×
  110. 110Nakhon PathomNakhon Pathom, Thailand
    831.8×
  111. 111EdinburghScotland, United Kingdom
    831.7×
  112. 112Ban Khlong PrawetBangkok, Thailand
    821.7×
  113. 112ShanghaiShanghai, China
    821.7×
  114. 112Columbialow-cost sensorsMissouri, United States
    821.7×
  115. 115YongkangTaiwan, Taiwan
    821.7×
  116. 116RayongRayong, Thailand
    821.7×
  117. 116Abujalow-cost sensorsFCT, Nigeria
    821.7×
  118. 118YasothonYasothon, Thailand
    821.7×
  119. 119Samut PrakanSamut Prakan, Thailand
    811.7×
  120. 120Si Maha PhotPrachin Buri, Thailand
    811.7×
  121. 121KolkataWest Bengal, India
    801.7×
  122. 122RangioraCanterbury, New Zealand
    801.7×
  123. 123TainanTaiwan, Taiwan
    801.6×
  124. 124MostaIl-Mosta, Malta
    801.6×
  125. 124Heroica MatamorosTamaulipas, Mexico
    801.6×
  126. 126Karachilow-cost sensorsSindh, Pakistan
    791.6×
  127. 127Si Sa KetSi Sa Ket, Thailand
    791.6×
  128. 127CopiapóAtacama, Chile
    791.6×
  129. 129ŻabbarĦaż-Żabbar, Malta
    791.6×
  130. 130GlasgowScotland, United Kingdom
    781.6×
  131. 131Bang Bo DistrictSamut Prakan, Thailand
    781.6×
  132. 131PuliTaiwan, Taiwan
    781.6×
  133. 133Nepeanlow-cost sensorsOntario, Canada
    781.6×
  134. 134KanchanaburiKanchanaburi, Thailand
    781.6×
  135. 134San Pawl il-BaħarSaint Paul’s Bay, Malta
    781.6×
  136. 136Kan’onjichōKagawa, Japan
    771.6×
  137. 136AbasoloGuanajuato, Mexico
    771.6×
  138. 138JenksOklahoma, United States
    771.5×
  139. 138McAlesterOklahoma, United States
    771.5×
  140. 140Chiang RaiChiang Rai, Thailand
    771.5×
  141. 140Sing BuriSing Buri, Thailand
    771.5×
  142. 140Chiayi CityTaiwan, Taiwan
    771.5×
  143. 140San ClementeIca, Peru
    771.5×
  144. 140TulsaOklahoma, United States
    771.5×
  145. 145DouliuTaiwan, Taiwan
    771.5×
  146. 146VallettaValletta, Malta
    771.5×
  147. 146Villa Poeta José Gálvez BarrenecheaLima region, Peru
    771.5×
  148. 148CallaoCallao, Peru
    761.5×
  149. 149Amnat CharoenAmnat Charoen, Thailand
    751.5×
  150. 149UlsanUlsan, South Korea
    751.5×
  151. 149GuanajuatoGuanajuato, Mexico
    751.5×
  152. 152Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    741.4×
  153. 153YeojuGyeonggi-do, South Korea
    741.4×
  154. 153La Crescenta-Montroselow-cost sensorsCalifornia, United States
    741.4×
  155. 155AricaArica y Parinacota Region, Chile
    741.4×
  156. 155DerbyKansas, United States
    741.4×
  157. 157IndioCalifornia, United States
    741.4×
  158. 158NantouTaiwan, Taiwan
    731.4×
  159. 159BeigangTaiwan, Taiwan
    731.4×
  160. 159HayangGyeongsangbuk-do, South Korea
    731.4×
  161. 159AnconaThe Marches, Italy
    731.4×
  162. 162LampangLampang, Thailand
    721.4×
  163. 162Falconara MarittimaThe Marches, Italy
    721.4×
  164. 164Wan ChaiWan Chai, Hong Kong
    721.4×
  165. 165Hondomachi-hondoKumamoto, Japan
    721.4×
  166. 165ShikokuchūōEhime, Japan
    721.4×
  167. 167KaohsiungTakao, Taiwan
    721.3×
  168. 168HonmachiKumamoto, Japan
    711.3×
  169. 168León de los AldamaGuanajuato, Mexico
    711.3×
  170. 168Oklahoma CityOklahoma, United States
    711.3×
  171. 171PohangGyeongsangbuk-do, South Korea
    711.3×
  172. 172Lop BuriLopburi, Thailand
    711.3×
  173. 172FukuyamaHiroshima, Japan
    711.3×
  174. 174SaijōEhime, Japan
    711.3×
  175. 175ChaiyaphumChaiyaphum, Thailand
    711.3×
  176. 176Buri RamBuriram, Thailand
    701.3×
  177. 176TaibaoTaiwan, Taiwan
    701.3×
  178. 176ShreveportLouisiana, United States
    701.3×
  179. 176MooreOklahoma, United States
    701.3×
  180. 180Chai NatChai Nat, Thailand
    701.3×
  181. 180FengshanTakao, Taiwan
    701.3×
  182. 180Ōyanomachi-noboritateKumamoto, Japan
    701.3×
  183. 183PhayaoPhayao, Thailand
    701.3×
  184. 183YuanlinTaiwan, Taiwan
    701.3×
  185. 183NaplesCampania, Italy
    701.3×
  186. 186TexarkanaTexas, United States
    701.3×
  187. 187TratTrat, Thailand
    701.3×
  188. 188AntananarivoAnalamanga, Madagascar
    691.3×
  189. 189Khon KaenKhon Kaen, Thailand
    691.3×
  190. 189Tuen MunTuen Mun, Hong Kong
    691.3×
  191. 189Ulu BedokSingapore
    691.3×
  192. 192ErlunTaiwan, Taiwan
    691.2×
  193. 193Udon ThaniUdon Thani, Thailand
    691.2×
  194. 193WaegwanGyeongsangbuk-do, South Korea
    691.2×
  195. 195ChangnyeongGyeongsangnam-do, South Korea
    691.2×
  196. 196GrangemouthScotland, United Kingdom
    681.2×
  197. 196MiamiFlorida, United States
    681.2×
  198. 196EdmondOklahoma, United States
    681.2×
  199. 199KikuchiKumamoto, Japan
    681.2×
  200. 200YeongjuGyeongsangbuk-do, South Korea
    681.2×

Top 200 of 2,324 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 15, 2024, smogrank.com/history/2024-05-15 (accessed 3 Oct 2026).

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