SmogRank / History / May 8, 2024

Most polluted cities on May 8, 2024

2,268 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 199.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 8, 2024. All episodes.

← N'Djamena 199.0 µg/m³ 150 µg/m³15 WHO 24-hour guideline
Every city ranked for May 8, 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. 1N'DjamenaN’Djaména, Chad
    27413.3×
  2. 2TlaquepaqueJalisco, Mexico
    1867.1×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    1816.5×
  4. 4Santa Anita - Los FicusLima region, Peru
    1806.4×
  5. 5HualpénBiobio, Chile
    1786.3×
  6. 6CoyhaiqueAysén, Chile
    1776.2×
  7. 7DelhiDelhi, India
    1715.6×
  8. 8Dhakalow-cost sensorsDhaka Division, Bangladesh
    1685.4×
  9. 9Chiang RaiChiang Rai, Thailand
    1634.8×
  10. 10TalcahuanoBiobio, Chile
    1614.7×
  11. 11CuranilahueBiobio, Chile
    1584.4×
  12. 12JakartaJakarta, Indonesia
    1574.3×
  13. 13Mae SaiChiang Rai, Thailand
    1493.7×
  14. 14OsornoLos Lagos Region, Chile
    1473.6×
  15. 15La UniónLos Ríos Region, Chile
    1463.6×
  16. 16NacimientoBiobio, Chile
    1453.6×
  17. 17BeijingBeijing, China
    1423.5×
  18. 18TolucaMéxico, Mexico
    1383.4×
  19. 19NanNan, Thailand
    1363.3×
  20. 20Puerto AysénAysén, Chile
    1343.2×
  21. 21ValdiviaLos Ríos Region, Chile
    1333.2×
  22. 22PhayaoPhayao, Thailand
    1243.0×
  23. 23Kathmandulow-cost sensorsBagmati Province, Nepal
    1233.0×
  24. 24TemucoAraucania, Chile
    1212.9×
  25. 25AustinTexas, United States
    1212.9×
  26. 26Puerto MonttLos Lagos Region, Chile
    1212.9×
  27. 27Corpus ChristiTexas, United States
    1202.9×
  28. 28Live OakTexas, United States
    1202.9×
  29. 28MissionTexas, United States
    1202.9×
  30. 30Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1192.9×
  31. 31Heroica MatamorosTamaulipas, Mexico
    1192.8×
  32. 32Zacatepec de HidalgoMorelos, Mexico
    1182.8×
  33. 33Mae SotTak, Thailand
    1172.8×
  34. 34CatañoCataño, Puerto Rico
    1172.8×
  35. 35NantanKyoto, Japan
    1162.8×
  36. 36Chiang MaiChiang Mai, Thailand
    1152.7×
  37. 37CuricóMaule Region, Chile
    1122.7×
  38. 38ToméBiobio, Chile
    1112.6×
  39. 39EdinburgTexas, United States
    1102.6×
  40. 40SukhothaiSukhothai, Thailand
    1102.6×
  41. 41LimaLima Province, Peru
    1092.6×
  42. 42HanoiHanoi, Vietnam
    1092.6×
  43. 43LampangLampang, Thailand
    1082.6×
  44. 44San MarcosTexas, United States
    1072.5×
  45. 45CorsicanaTexas, United States
    1052.5×
  46. 46BeltonTexas, United States
    1042.5×
  47. 47BelmopanCayo District, Belize
    1032.4×
  48. 47Guatemala CityGuatemala, Guatemala
    1032.4×
  49. 47ConcepciónBiobio, Chile
    1032.4×
  50. 47TaylorTexas, United States
    1032.4×
  51. 51KalasinKalasin, Thailand
    1022.4×
  52. 52College StationTexas, United States
    1012.4×
  53. 53LamphunLamphun, Thailand
    1012.4×
  54. 54RabinalBaja Verapaz, Guatemala
    992.3×
  55. 55MukdahanMukdahan, Thailand
    992.3×
  56. 56San Pedro de la PazBiobio, Chile
    982.3×
  57. 57Ubon RatchathaniUbon Ratchathani, Thailand
    972.3×
  58. 57YuanlinTaiwan, Taiwan
    972.3×
  59. 59Puerto VarasLos Lagos Region, Chile
    972.2×
  60. 60Roi EtRoi Et, Thailand
    962.2×
  61. 61Bang NaBangkok, Thailand
    962.2×
  62. 62Chiayi CityTaiwan, Taiwan
    952.2×
  63. 63AcerraCampania, Italy
    952.2×
  64. 64DouliuTaiwan, Taiwan
    952.2×
  65. 64ZhushanTaiwan, Taiwan
    952.2×
  66. 64CauquenesMaule Region, Chile
    952.2×
  67. 67ChiguayanteBiobio, Chile
    942.2×
  68. 68San AntonioTexas, United States
    942.1×
  69. 69San Luis de la PazGuanajuato, Mexico
    932.1×
  70. 70YangonYangon, Myanmar
    932.1×
  71. 71CelayaGuanajuato, Mexico
    932.1×
  72. 72DüsseldorfNorth Rhine-Westphalia, Germany
    922.1×
  73. 72TexarkanaTexas, United States
    922.1×
  74. 74BeigangTaiwan, Taiwan
    922.1×
  75. 74PueblaPuebla, Mexico
    922.1×
  76. 76ErlunTaiwan, Taiwan
    912.0×
  77. 77Los ÁngelesBiobio, Chile
    912.0×
  78. 78Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    912.0×
  79. 78RancaguaO'Higgins Region, Chile
    912.0×
  80. 80Chai NatChai Nat, Thailand
    902.0×
  81. 81KanchanaburiKanchanaburi, Thailand
    902.0×
  82. 82Nakhon SawanNakhon Sawan, Thailand
    892.0×
  83. 83Islamabadlow-cost sensorsIslamabad, Pakistan
    892.0×
  84. 84UttaraditUttaradit, Thailand
    892.0×
  85. 85Samut SakhonSamut Sakhon, Thailand
    881.9×
  86. 85NagoOkinawa, Japan
    881.9×
  87. 85DallasTexas, United States
    881.9×
  88. 88KigaliKigali, Rwanda
    881.9×
  89. 89QuilpuéValparaiso, Chile
    881.9×
  90. 89Khlong Sam WaBangkok, Thailand
    881.9×
  91. 91Khan Na YaoBangkok, Thailand
    881.9×
  92. 92Vientianelow-cost sensorsVientiane Prefecture, Laos
    871.9×
  93. 92KölnNorth Rhine-Westphalia, Germany
    871.9×
  94. 92BonnNorth Rhine-Westphalia, Germany
    871.9×
  95. 95ChillánÑuble, Chile
    871.9×
  96. 96Wan ChaiWan Chai, Hong Kong
    871.9×
  97. 96SaginawTexas, United States
    871.9×
  98. 98PhraePhrae, Thailand
    871.9×
  99. 98ErlinTaiwan, Taiwan
    871.9×
  100. 98ŠabacCentral Serbia, Serbia
    871.9×
  101. 98CoronelBiobio, Chile
    871.9×
  102. 102Khon KaenKhon Kaen, Thailand
    861.9×
  103. 102Mission BendTexas, United States
    861.9×
  104. 104BaghdadBaghdad, Iraq
    861.8×
  105. 105RengoO'Higgins Region, Chile
    851.8×
  106. 105Eagle PassTexas, United States
    851.8×
  107. 107Ban Samae DamBangkok, Thailand
    851.8×
  108. 107ConroeTexas, United States
    851.8×
  109. 109Kamphaeng PhetKamphaeng Phet, Thailand
    851.8×
  110. 110PhetchabunPhetchabun, Thailand
    841.8×
  111. 110TaichungTaiwan, Taiwan
    841.8×
  112. 110NantouTaiwan, Taiwan
    841.8×
  113. 110ShanghaiShanghai, China
    841.8×
  114. 110HoustonTexas, United States
    841.8×
  115. 115Pachuca de SotoHidalgo, Mexico
    841.8×
  116. 116Melbournelow-cost sensorsVictoria, Australia
    841.8×
  117. 117ChanghuaTaiwan, Taiwan
    831.8×
  118. 118JinchengFukien, Taiwan
    831.7×
  119. 119Nakhon RatchasimaNakhon Ratchasima, Thailand
    831.7×
  120. 120BuziTaiwan, Taiwan
    821.7×
  121. 121Nong KhaemBangkok, Thailand
    821.7×
  122. 122Amnat CharoenAmnat Charoen, Thailand
    821.7×
  123. 123BakuBaki, Azerbaijan
    821.7×
  124. 123PhichitPhichit, Thailand
    821.7×
  125. 123TaibaoTaiwan, Taiwan
    821.7×
  126. 123XinyingTaiwan, Taiwan
    821.7×
  127. 123ShulinTaipei, Taiwan
    821.7×
  128. 128YongkangTaiwan, Taiwan
    811.7×
  129. 129Sing BuriSing Buri, Thailand
    811.7×
  130. 129Abujalow-cost sensorsFCT, Nigeria
    811.7×
  131. 129San CarlosÑuble, Chile
    811.7×
  132. 129Missouri CityTexas, United States
    811.7×
  133. 133NahaOkinawa, Japan
    811.7×
  134. 134San Francisco De BorjaLima region, Peru
    811.7×
  135. 135OkinawaOkinawa, Japan
    801.6×
  136. 136Tuen MunTuen Mun, Hong Kong
    801.6×
  137. 137XizhouTaiwan, Taiwan
    801.6×
  138. 137TalcaMaule Region, Chile
    801.6×
  139. 139Si Maha PhotPrachin Buri, Thailand
    791.6×
  140. 140TaipeiTaiwan, Taiwan
    791.6×
  141. 140PuliTaiwan, Taiwan
    791.6×
  142. 142Santiago de QuerétaroQuerétaro, Mexico
    791.6×
  143. 143XizhiTaipei, Taiwan
    791.6×
  144. 143Mong KokYau Tsim Mong District, Hong Kong
    791.6×
  145. 145TainanTaiwan, Taiwan
    781.6×
  146. 146LeverkusenNorth Rhine-Westphalia, Germany
    781.6×
  147. 146DortmundNorth Rhine-Westphalia, Germany
    781.6×
  148. 146Villa Poeta José Gálvez BarrenecheaLima region, Peru
    781.6×
  149. 149SantiagoSantiago Metropolitan, Chile
    781.6×
  150. 149CallaoCallao, Peru
    781.6×
  151. 151HsinchuTaiwan, Taiwan
    781.6×
  152. 152Phra PradaengSamut Prakan, Thailand
    771.6×
  153. 152ZhubeiTaiwan, Taiwan
    771.6×
  154. 154QuillotaValparaiso, Chile
    771.5×
  155. 155Nong Bua LamphuNong Bua Lamphu, Thailand
    771.5×
  156. 155FengshanTakao, Taiwan
    771.5×
  157. 155KaohsiungTakao, Taiwan
    771.5×
  158. 158MiaoliTaiwan, Taiwan
    771.5×
  159. 158Port ArthurTexas, United States
    771.5×
  160. 160LoeiLoei, Thailand
    761.5×
  161. 161Le MansPays de la Loire, France
    761.5×
  162. 161SarajevoFederation of B&H, Bosnia and Herzegovina
    761.5×
  163. 163Little RockArkansas, United States
    751.5×
  164. 163Fort WorthTexas, United States
    751.5×
  165. 163AmamiKagoshima, Japan
    751.5×
  166. 166BangkokBangkok, Thailand
    751.5×
  167. 166RatingenNorth Rhine-Westphalia, Germany
    751.5×
  168. 166New Taipei CityTaipei, Taiwan
    751.5×
  169. 169GuangzhouGuangdong, China
    751.5×
  170. 170Suphan BuriSuphan Buri, Thailand
    751.5×
  171. 171KanoyaKagoshima, Japan
    741.4×
  172. 172HyderabadTelangana, India
    741.4×
  173. 172AstanaAstana, Kazakhstan
    741.4×
  174. 172MiyakonojōMiyazaki, Japan
    741.4×
  175. 172Jacobo HunterArequipa, Peru
    741.4×
  176. 176Sakon NakhonSakon Nakhon, Thailand
    741.4×
  177. 177BaytownTexas, United States
    741.4×
  178. 178Nakhon PathomNakhon Pathom, Thailand
    731.4×
  179. 179Sau Mau PingKwun Tong District, Hong Kong
    731.4×
  180. 180TratTrat, Thailand
    731.4×
  181. 180Sham Shui PoSham Shui Po District, Hong Kong
    731.4×
  182. 182KeelungTaiwan, Taiwan
    731.4×
  183. 183Lak SiBangkok, Thailand
    731.4×
  184. 184ToufenTaiwan, Taiwan
    721.4×
  185. 185Samut PrakanSamut Prakan, Thailand
    721.4×
  186. 186Mueang NonthaburiNonthaburi, Thailand
    721.4×
  187. 186Ban Khlong PrawetBangkok, Thailand
    721.4×
  188. 186KourouGuyane, French Guiana
    721.4×
  189. 189Lop BuriLopburi, Thailand
    721.4×
  190. 189DaxiTaiwan, Taiwan
    721.4×
  191. 189ZhudongTaiwan, Taiwan
    721.4×
  192. 189Puente AltoSantiago Metropolitan, Chile
    721.4×
  193. 189DentonTexas, United States
    721.4×
  194. 194YasothonYasothon, Thailand
    721.3×
  195. 194Bang KapiBangkok, Thailand
    721.3×
  196. 196Udon ThaniUdon Thani, Thailand
    711.3×
  197. 196QuinteroValparaiso, Chile
    711.3×
  198. 196ShreveportLouisiana, United States
    711.3×
  199. 199Karachilow-cost sensorsSindh, Pakistan
    711.3×
  200. 199Ang Mo Kio New TownSingapore
    711.3×

Top 200 of 2,268 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 8, 2024, smogrank.com/history/2024-05-08 (accessed 3 Oct 2026).

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