SmogRank / History / May 22, 2024

Most polluted cities on May 22, 2024

2,304 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 208.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 22, 2024. All episodes.

← N'Djamena 208.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for May 22, 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
    28313.9×
  2. 2NacimientoBiobio, Chile
    2048.6×
  3. 3Lahorelow-cost sensorsPunjab, Pakistan
    1856.9×
  4. 4OsornoLos Lagos Region, Chile
    1826.7×
  5. 5BeijingBeijing, China
    1796.4×
  6. 6Puerto VarasLos Lagos Region, Chile
    1786.3×
  7. 7HualpénBiobio, Chile
    1715.6×
  8. 8Santa Anita - Los FicusLima region, Peru
    1715.6×
  9. 9VillarricaAraucania, Chile
    1705.5×
  10. 10DelhiDelhi, India
    1655.1×
  11. 11CoronelBiobio, Chile
    1645.0×
  12. 12TemucoAraucania, Chile
    1644.9×
  13. 13CuranilahueBiobio, Chile
    1624.7×
  14. 14TlaquepaqueJalisco, Mexico
    1604.6×
  15. 15CairoCairo, Egypt
    1554.1×
  16. 16YesanChungcheongnam-do, South Korea
    1533.9×
  17. 17La UniónLos Ríos Region, Chile
    1533.9×
  18. 18Dhakalow-cost sensorsDhaka Division, Bangladesh
    1523.8×
  19. 19AsanChungcheongnam-do, South Korea
    1473.6×
  20. 20Puerto MonttLos Lagos Region, Chile
    1463.6×
  21. 21RabinalBaja Verapaz, Guatemala
    1393.4×
  22. 22Guatemala CityGuatemala, Guatemala
    1363.3×
  23. 23SeonghwanChungcheongnam-do, South Korea
    1323.2×
  24. 24CoyhaiqueAysén, Chile
    1313.2×
  25. 25CuricóMaule Region, Chile
    1303.1×
  26. 26HanoiHanoi, Vietnam
    1263.0×
  27. 27Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    1263.0×
  28. 28ChillánÑuble, Chile
    1253.0×
  29. 29ValdiviaLos Ríos Region, Chile
    1253.0×
  30. 29MonterreyNuevo León, Mexico
    1253.0×
  31. 31TalcahuanoBiobio, Chile
    1243.0×
  32. 31San CarlosÑuble, Chile
    1243.0×
  33. 33CauquenesMaule Region, Chile
    1233.0×
  34. 34PyeongtaekGyeonggi-do, South Korea
    1222.9×
  35. 35Los ÁngelesBiobio, Chile
    1212.9×
  36. 36BaghdadBaghdad, Iraq
    1212.9×
  37. 37San Salvador TizatlalliMéxico, Mexico
    1182.8×
  38. 38BelmopanCayo District, Belize
    1172.8×
  39. 39ChiguayanteBiobio, Chile
    1172.8×
  40. 40ToméBiobio, Chile
    1142.7×
  41. 41ConcepciónBiobio, Chile
    1142.7×
  42. 42TalcaMaule Region, Chile
    1142.7×
  43. 43Icheon-siGyeonggi-do, South Korea
    1132.7×
  44. 44OsanGyeonggi-do, South Korea
    1112.6×
  45. 45Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1112.6×
  46. 46Şabāḩ as SālimMubārak al Kabīr, Kuwait
    1102.6×
  47. 47MissionTexas, United States
    1092.6×
  48. 48Puerto AysénAysén, Chile
    1092.6×
  49. 49JakartaJakarta, Indonesia
    1072.5×
  50. 50ManamaManama, Bahrain
    1052.5×
  51. 51SeoulSeoul, South Korea
    1042.5×
  52. 51Live OakTexas, United States
    1042.5×
  53. 53Islamabadlow-cost sensorsIslamabad, Pakistan
    1042.4×
  54. 54TangjinChungcheongnam-do, South Korea
    1002.3×
  55. 55Guri-siGyeonggi-do, South Korea
    982.3×
  56. 56HanamGyeonggi-do, South Korea
    972.3×
  57. 57IrapuatoGuanajuato, Mexico
    972.2×
  58. 58JeddahMecca Region, Saudi Arabia
    952.2×
  59. 58GwangmyeongGyeonggi-do, South Korea
    952.2×
  60. 60San Luis de la PazGuanajuato, Mexico
    952.2×
  61. 60SaginawTexas, United States
    952.2×
  62. 62Corpus ChristiTexas, United States
    952.2×
  63. 63YeojuGyeonggi-do, South Korea
    942.2×
  64. 63CheonanChungcheongnam-do, South Korea
    942.2×
  65. 63RancaguaO'Higgins Region, Chile
    942.2×
  66. 66MaputoMaputo City, Mozambique
    932.1×
  67. 66Uijeongbu-siGyeonggi-do, South Korea
    932.1×
  68. 66DamyangJeollanam-do, South Korea
    932.1×
  69. 69TamanaKumamoto, Japan
    932.1×
  70. 69EdinburgTexas, United States
    932.1×
  71. 71PubalGyeonggi-do, South Korea
    932.1×
  72. 72Tanushimarumachi-toyokiFukuoka, Japan
    932.1×
  73. 73AntofagastaAntofagasta, Chile
    922.1×
  74. 74Anyang-siGyeonggi-do, South Korea
    912.0×
  75. 75Addis AbabaAddis Ababa, Ethiopia
    902.0×
  76. 76SantiagoSantiago Metropolitan, Chile
    902.0×
  77. 77JangseongJeollanam-do, South Korea
    892.0×
  78. 77QuillotaValparaiso, Chile
    892.0×
  79. 79AustinTexas, United States
    892.0×
  80. 79San Pedro de la PazBiobio, Chile
    892.0×
  81. 81HonmachiKumamoto, Japan
    881.9×
  82. 82Cheongju-siNorth Chungcheong, South Korea
    881.9×
  83. 82AnseongGyeonggi-do, South Korea
    881.9×
  84. 84HongseongChungcheongnam-do, South Korea
    881.9×
  85. 85ImsilJeollabuk-do, South Korea
    871.9×
  86. 86San MarcosTexas, United States
    871.9×
  87. 87Uekimachi-mōnoKumamoto, Japan
    861.9×
  88. 87KikuchiKumamoto, Japan
    861.9×
  89. 89BakuBaki, Azerbaijan
    861.9×
  90. 89YeonggwangJeollanam-do, South Korea
    861.9×
  91. 91HwadoGyeonggi-do, South Korea
    861.9×
  92. 92SuwonGyeonggi-do, South Korea
    851.8×
  93. 92Chinch'ŏnNorth Chungcheong, South Korea
    851.8×
  94. 92QuinteroValparaiso, Chile
    851.8×
  95. 95LimaLima Province, Peru
    851.8×
  96. 96SangjuGyeongsangbuk-do, South Korea
    851.8×
  97. 97Goyang-siGyeonggi-do, South Korea
    851.8×
  98. 98Bucheon-siGyeonggi-do, South Korea
    851.8×
  99. 99GwangjuGyeonggi-do, South Korea
    851.8×
  100. 99IksanJeollabuk-do, South Korea
    851.8×
  101. 101GimcheonGyeongsangbuk-do, South Korea
    841.8×
  102. 102MasanGwangju, South Korea
    841.8×
  103. 102Silao de la VictoriaGuanajuato, Mexico
    841.8×
  104. 102San AntonioTexas, United States
    841.8×
  105. 105TalaganteSantiago Metropolitan, Chile
    831.8×
  106. 106Kathmandulow-cost sensorsBagmati Province, Nepal
    831.8×
  107. 107CheorwonGangwon-do, South Korea
    831.8×
  108. 108DallasTexas, United States
    831.7×
  109. 108AraoKumamoto, Japan
    831.7×
  110. 110YamagaKumamoto, Japan
    831.7×
  111. 110CorsicanaTexas, United States
    831.7×
  112. 112ŌmutaFukuoka, Japan
    821.7×
  113. 112NamyangjuGyeonggi-do, South Korea
    821.7×
  114. 114Seongnam-siGyeonggi-do, South Korea
    821.7×
  115. 114WabuGyeonggi-do, South Korea
    821.7×
  116. 116GwangjuGwangju, South Korea
    821.7×
  117. 116ChangsuJeollabuk-do, South Korea
    821.7×
  118. 118ShanghaiShanghai, China
    821.7×
  119. 118HwasunJeollanam-do, South Korea
    821.7×
  120. 118León de los AldamaGuanajuato, Mexico
    821.7×
  121. 118SejongSejong-si, South Korea
    821.7×
  122. 122NajuJeollanam-do, South Korea
    811.7×
  123. 122GongjuChungcheongnam-do, South Korea
    811.7×
  124. 124YangjuGyeonggi-do, South Korea
    811.7×
  125. 124WŏnjuGangwon-do, South Korea
    811.7×
  126. 124KinzanChungcheongnam-do, South Korea
    811.7×
  127. 124Heroica MatamorosTamaulipas, Mexico
    811.7×
  128. 128Karachilow-cost sensorsSindh, Pakistan
    811.7×
  129. 129Yangp'yŏngGyeonggi-do, South Korea
    811.7×
  130. 129YanagawaFukuoka, Japan
    811.7×
  131. 131Koch'angJeollabuk-do, South Korea
    801.7×
  132. 131HitaOita, Japan
    801.7×
  133. 133AthensAttica, Greece
    801.6×
  134. 134DaejeonDaejeon, South Korea
    801.6×
  135. 134JungpyongNorth Chungcheong, South Korea
    801.6×
  136. 136YŏnmuChungcheongnam-do, South Korea
    801.6×
  137. 137YeongdongNorth Chungcheong, South Korea
    801.6×
  138. 137WanjuJeollabuk-do, South Korea
    801.6×
  139. 137KurumeFukuoka, Japan
    801.6×
  140. 137ShikokuchūōEhime, Japan
    801.6×
  141. 141UtoKumamoto, Japan
    791.6×
  142. 141CelayaGuanajuato, Mexico
    791.6×
  143. 143San Francisco De BorjaLima region, Peru
    791.6×
  144. 144AnconaThe Marches, Italy
    791.6×
  145. 145DushanbeDushanbe, Tajikistan
    791.6×
  146. 145AshburtonCanterbury, New Zealand
    791.6×
  147. 147KimjeJeollabuk-do, South Korea
    781.6×
  148. 147Puente AltoSantiago Metropolitan, Chile
    781.6×
  149. 147Fort WorthTexas, United States
    781.6×
  150. 150Ansan-siGyeonggi-do, South Korea
    781.6×
  151. 150Hondomachi-hondoKumamoto, Japan
    781.6×
  152. 150UkihaFukuoka, Japan
    781.6×
  153. 153AsprópyrgosAttica, Greece
    781.6×
  154. 153NangenJeollabuk-do, South Korea
    781.6×
  155. 153NamsaJeollabuk-do, South Korea
    781.6×
  156. 156KoesanNorth Chungcheong, South Korea
    771.6×
  157. 156NakatsuOita, Japan
    771.6×
  158. 158MokpoJeollanam-do, South Korea
    771.5×
  159. 158KumamotoKumamoto, Japan
    771.5×
  160. 160BuanJeollabuk-do, South Korea
    771.5×
  161. 160ConcónValparaiso, Chile
    771.5×
  162. 162OkcheonNorth Chungcheong, South Korea
    771.5×
  163. 163NanNan, Thailand
    771.5×
  164. 163MukdahanMukdahan, Thailand
    771.5×
  165. 163JeonjuJeollabuk-do, South Korea
    771.5×
  166. 166TainanTaiwan, Taiwan
    761.5×
  167. 167CoquimboCoquimbo Region, Chile
    761.5×
  168. 168Samut SakhonSamut Sakhon, Thailand
    761.5×
  169. 168CopiapóAtacama, Chile
    761.5×
  170. 170Hwaseong-siGyeonggi-do, South Korea
    761.5×
  171. 170Maebaru-chūōFukuoka, Japan
    761.5×
  172. 172San Tung Chung HangIslands, Hong Kong
    761.5×
  173. 172NonsanChungcheongnam-do, South Korea
    761.5×
  174. 172ŌzuKumamoto, Japan
    761.5×
  175. 172MinamataKumamoto, Japan
    761.5×
  176. 172HitoyoshiKumamoto, Japan
    761.5×
  177. 172AguascalientesAguascalientes, Mexico
    761.5×
  178. 172YameFukuoka, Japan
    761.5×
  179. 179Kanzakimachi-kanzakiSaga, Japan
    751.5×
  180. 179GuanajuatoGuanajuato, Mexico
    751.5×
  181. 181TaylorTexas, United States
    751.5×
  182. 181ChangnyeongGyeongsangnam-do, South Korea
    751.5×
  183. 183Ōyanomachi-noboritateKumamoto, Japan
    751.5×
  184. 183KotōKumamoto, Japan
    751.5×
  185. 185Gimpo-siGyeonggi-do, South Korea
    751.5×
  186. 185TogitsuNagasaki, Japan
    751.5×
  187. 187MumbaiMaharashtra, India
    741.4×
  188. 187La SerenaCoquimbo Region, Chile
    741.4×
  189. 187AbasoloGuanajuato, Mexico
    741.4×
  190. 190BuyeoChungcheongnam-do, South Korea
    741.4×
  191. 190SagaSaga, Japan
    741.4×
  192. 192GunsanJeollabuk-do, South Korea
    741.4×
  193. 192GapyeongGyeonggi-do, South Korea
    741.4×
  194. 192ChungjuNorth Chungcheong, South Korea
    741.4×
  195. 195HayangGyeongsangbuk-do, South Korea
    741.4×
  196. 195College StationTexas, United States
    741.4×
  197. 195ConroeTexas, United States
    741.4×
  198. 195JeongeupJeollabuk-do, South Korea
    741.4×
  199. 199KhalándrionAttica, Greece
    731.4×
  200. 199ŌmuraNagasaki, Japan
    731.4×

Top 200 of 2,304 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 22, 2024, smogrank.com/history/2024-05-22 (accessed 3 Oct 2026).

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