SmogRank / History / May 7, 2024

Most polluted cities on May 7, 2024

2,278 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 284.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 7, 2024. All episodes.

← N'Djamena 284.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for May 7, 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
    41818.9×
  2. 2Lahorelow-cost sensorsPunjab, Pakistan
    23610.7×
  3. 3DelhiDelhi, India
    2219.7×
  4. 4MödlingLower Austria, Austria
    1988.1×
  5. 5BadenLower Austria, Austria
    1937.7×
  6. 6AmstettenLower Austria, Austria
    1897.3×
  7. 7Chiang RaiChiang Rai, Thailand
    1816.6×
  8. 8CoyhaiqueAysén, Chile
    1745.9×
  9. 9TlaquepaqueJalisco, Mexico
    1705.5×
  10. 10PhayaoPhayao, Thailand
    1685.3×
  11. 11LampangLampang, Thailand
    1675.2×
  12. 12Mae SaiChiang Rai, Thailand
    1675.2×
  13. 13Chiang MaiChiang Mai, Thailand
    1665.1×
  14. 14LamphunLamphun, Thailand
    1614.6×
  15. 15NanNan, Thailand
    1594.5×
  16. 16NacimientoBiobio, Chile
    1594.5×
  17. 17JakartaJakarta, Indonesia
    1574.3×
  18. 18Santa Anita - Los FicusLima region, Peru
    1564.2×
  19. 19Dhakalow-cost sensorsDhaka Division, Bangladesh
    1564.1×
  20. 20UttaraditUttaradit, Thailand
    1554.1×
  21. 21SukhothaiSukhothai, Thailand
    1554.0×
  22. 22PhraePhrae, Thailand
    1453.6×
  23. 23Kamphaeng PhetKamphaeng Phet, Thailand
    1383.4×
  24. 24HanoiHanoi, Vietnam
    1373.3×
  25. 25RabinalBaja Verapaz, Guatemala
    1313.2×
  26. 26Guatemala CityGuatemala, Guatemala
    1303.2×
  27. 27Puerto AysénAysén, Chile
    1222.9×
  28. 28Kathmandulow-cost sensorsBagmati Province, Nepal
    1192.9×
  29. 29PhetchabunPhetchabun, Thailand
    1182.8×
  30. 30Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1162.8×
  31. 31Nakhon SawanNakhon Sawan, Thailand
    1142.7×
  32. 32Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    1132.7×
  33. 33ShanghaiShanghai, China
    1122.7×
  34. 34Sing BuriSing Buri, Thailand
    1112.6×
  35. 35Chai NatChai Nat, Thailand
    1102.6×
  36. 36PhichitPhichit, Thailand
    1072.5×
  37. 37MissionTexas, United States
    1072.5×
  38. 38MukdahanMukdahan, Thailand
    1062.5×
  39. 39SeogwipoJeju-do, South Korea
    1062.5×
  40. 40DouliuTaiwan, Taiwan
    1042.4×
  41. 40OsornoLos Lagos Region, Chile
    1042.4×
  42. 42BeijingBeijing, China
    1012.4×
  43. 43Lop BuriLopburi, Thailand
    1012.4×
  44. 44Mae SotTak, Thailand
    1002.4×
  45. 45Jeju CityJeju-do, South Korea
    982.3×
  46. 46KalasinKalasin, Thailand
    972.3×
  47. 47Bang NaBangkok, Thailand
    972.2×
  48. 47La UniónLos Ríos Region, Chile
    972.2×
  49. 49Nong KhaemBangkok, Thailand
    962.2×
  50. 50Wan ChaiWan Chai, Hong Kong
    962.2×
  51. 51Nakhon PathomNakhon Pathom, Thailand
    942.1×
  52. 51BelmopanCayo District, Belize
    942.1×
  53. 53KigaliKigali, Rwanda
    942.1×
  54. 53Khlong LuangPathum Thani, Thailand
    942.1×
  55. 55Bang Khun ThianBangkok, Thailand
    942.1×
  56. 56LoeiLoei, Thailand
    932.1×
  57. 57Ban Samae DamBangkok, Thailand
    932.1×
  58. 57EdinburgTexas, United States
    932.1×
  59. 59GaigeturiJeju-do, South Korea
    932.1×
  60. 60Şabāḩ as SālimMubārak al Kabīr, Kuwait
    932.1×
  61. 61Hua HinPrachuap Khiri Khan, Thailand
    932.1×
  62. 62Khlong Sam WaBangkok, Thailand
    922.1×
  63. 63KanchanaburiKanchanaburi, Thailand
    922.1×
  64. 64Phra PradaengSamut Prakan, Thailand
    912.0×
  65. 65HualpénBiobio, Chile
    912.0×
  66. 65Corpus ChristiTexas, United States
    912.0×
  67. 67GuangzhouGuangdong, China
    902.0×
  68. 68BaghdadBaghdad, Iraq
    902.0×
  69. 69CairoCairo, Egypt
    902.0×
  70. 70Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    902.0×
  71. 71RancaguaO'Higgins Region, Chile
    892.0×
  72. 72YuanlinTaiwan, Taiwan
    881.9×
  73. 73Khon KaenKhon Kaen, Thailand
    881.9×
  74. 73Puerto MonttLos Lagos Region, Chile
    881.9×
  75. 75SaraburiSaraburi, Thailand
    871.9×
  76. 75Nong Bua LamphuNong Bua Lamphu, Thailand
    871.9×
  77. 77Nakhon RatchasimaNakhon Ratchasima, Thailand
    871.9×
  78. 77QuillotaValparaiso, Chile
    871.9×
  79. 79Samut PrakanSamut Prakan, Thailand
    861.9×
  80. 79Heroica MatamorosTamaulipas, Mexico
    861.9×
  81. 81Si Maha PhotPrachin Buri, Thailand
    861.9×
  82. 82BangkokBangkok, Thailand
    861.9×
  83. 83Suphan BuriSuphan Buri, Thailand
    861.9×
  84. 83Chiayi CityTaiwan, Taiwan
    861.9×
  85. 85YangonYangon, Myanmar
    861.8×
  86. 86Roi EtRoi Et, Thailand
    851.8×
  87. 86Mueang NonthaburiNonthaburi, Thailand
    851.8×
  88. 88AcerraCampania, Italy
    851.8×
  89. 88ConroeTexas, United States
    851.8×
  90. 90ErlunTaiwan, Taiwan
    851.8×
  91. 90DamyangJeollanam-do, South Korea
    851.8×
  92. 92BeigangTaiwan, Taiwan
    841.8×
  93. 93Islamabadlow-cost sensorsIslamabad, Pakistan
    841.8×
  94. 94PhetchaburiPhetchaburi, Thailand
    841.8×
  95. 95Lak SiBangkok, Thailand
    841.8×
  96. 96CelayaGuanajuato, Mexico
    831.8×
  97. 97CuranilahueBiobio, Chile
    831.8×
  98. 98ShenyangLiaoning, China
    831.8×
  99. 99SinanJeollanam-do, South Korea
    831.7×
  100. 100Khan Na YaoBangkok, Thailand
    821.7×
  101. 101JangheungJeollanam-do, South Korea
    821.7×
  102. 101CuricóMaule Region, Chile
    821.7×
  103. 103ZapopanJalisco, Mexico
    821.7×
  104. 104Nakhon NayokNakhon Nayok, Thailand
    821.7×
  105. 105ZhushanTaiwan, Taiwan
    811.7×
  106. 105Tuen MunTuen Mun, Hong Kong
    811.7×
  107. 107Udon ThaniUdon Thani, Thailand
    811.7×
  108. 107CoronelBiobio, Chile
    811.7×
  109. 107AshburtonCanterbury, New Zealand
    811.7×
  110. 110Samut SakhonSamut Sakhon, Thailand
    811.7×
  111. 110JinchengFukien, Taiwan
    811.7×
  112. 112San Juan del RíoQuerétaro, Mexico
    811.7×
  113. 112Live OakTexas, United States
    811.7×
  114. 114YongkangTaiwan, Taiwan
    801.7×
  115. 114RengoO'Higgins Region, Chile
    801.7×
  116. 116TainanTaiwan, Taiwan
    801.6×
  117. 117TongyeongGyeongsangnam-do, South Korea
    801.6×
  118. 118PhuketPhuket, Thailand
    801.6×
  119. 118QuilpuéValparaiso, Chile
    801.6×
  120. 120MokpoJeollanam-do, South Korea
    791.6×
  121. 121Nong ChokBangkok, Thailand
    791.6×
  122. 121Bang KapiBangkok, Thailand
    791.6×
  123. 121Tsuen WanTsuen Wan, Hong Kong
    791.6×
  124. 124Pachuca de SotoHidalgo, Mexico
    791.6×
  125. 124SantiagoSantiago Metropolitan, Chile
    791.6×
  126. 126AntofagastaAntofagasta, Chile
    791.6×
  127. 127ChaiyaphumChaiyaphum, Thailand
    781.6×
  128. 127MasanGwangju, South Korea
    781.6×
  129. 129Karachilow-cost sensorsSindh, Pakistan
    781.6×
  130. 129YesanChungcheongnam-do, South Korea
    781.6×
  131. 129Jacobo HunterArequipa, Peru
    781.6×
  132. 132Accralow-cost sensorsGreater Accra, Ghana
    781.6×
  133. 133TaibaoTaiwan, Taiwan
    781.6×
  134. 133FengshanTakao, Taiwan
    781.6×
  135. 133ErlinTaiwan, Taiwan
    781.6×
  136. 136Maebaru-chūōFukuoka, Japan
    771.6×
  137. 137Puente AltoSantiago Metropolitan, Chile
    771.5×
  138. 138Santiago de QuerétaroQuerétaro, Mexico
    771.5×
  139. 138Mission BendTexas, United States
    771.5×
  140. 138Sai MaiBangkok, Thailand
    771.5×
  141. 141Laem ChabangChon Buri, Thailand
    771.5×
  142. 142KaohsiungTakao, Taiwan
    771.5×
  143. 142Mong KokYau Tsim Mong District, Hong Kong
    771.5×
  144. 142GwangjuGwangju, South Korea
    771.5×
  145. 145Ban ChangRayong, Thailand
    771.5×
  146. 145Vientianelow-cost sensorsVientiane Prefecture, Laos
    771.5×
  147. 145KourouGuyane, French Guiana
    771.5×
  148. 148Tin Shui WaiYuen Long, Hong Kong
    761.5×
  149. 148Puerto VarasLos Lagos Region, Chile
    761.5×
  150. 150GoseongGyeongsangnam-do, South Korea
    761.5×
  151. 150TemucoAraucania, Chile
    761.5×
  152. 152MenenFlanders, Belgium
    761.5×
  153. 153ValdiviaLos Ríos Region, Chile
    761.5×
  154. 154Abujalow-cost sensorsFCT, Nigeria
    751.5×
  155. 154College StationTexas, United States
    751.5×
  156. 156XinyingTaiwan, Taiwan
    751.5×
  157. 156TaichungTaiwan, Taiwan
    751.5×
  158. 156LimaLima Province, Peru
    751.5×
  159. 159BuziTaiwan, Taiwan
    751.5×
  160. 160HaenamJeollanam-do, South Korea
    751.5×
  161. 161SinhyeonGyeongsangnam-do, South Korea
    741.4×
  162. 162AshgabatAshgabat, Turkmenistan
    741.4×
  163. 162ChanghuaTaiwan, Taiwan
    741.4×
  164. 164QuinteroValparaiso, Chile
    741.4×
  165. 165TogitsuNagasaki, Japan
    741.4×
  166. 165RoeselareFlanders, Belgium
    741.4×
  167. 167Bang Bo DistrictSamut Prakan, Thailand
    741.4×
  168. 167San Tung Chung HangIslands, Hong Kong
    741.4×
  169. 167Koch'angJeollabuk-do, South Korea
    741.4×
  170. 167CauquenesMaule Region, Chile
    741.4×
  171. 167San Luis de la PazGuanajuato, Mexico
    741.4×
  172. 167GotōNagasaki, Japan
    741.4×
  173. 173MatsuuraNagasaki, Japan
    741.4×
  174. 174NakatsuOita, Japan
    731.4×
  175. 174Hondomachi-hondoKumamoto, Japan
    731.4×
  176. 176Imarichō-kōSaga, Japan
    731.4×
  177. 176AustinTexas, United States
    731.4×
  178. 178JangseongJeollanam-do, South Korea
    731.4×
  179. 179ChaozhouTaiwan, Taiwan
    731.4×
  180. 179Sau Mau PingKwun Tong District, Hong Kong
    731.4×
  181. 179SaseboNagasaki, Japan
    731.4×
  182. 179VictoriaCentral and Western, Hong Kong
    731.4×
  183. 179HoustonTexas, United States
    731.4×
  184. 184SeonghwanChungcheongnam-do, South Korea
    731.4×
  185. 184SangjuGyeongsangbuk-do, South Korea
    731.4×
  186. 184IksanJeollabuk-do, South Korea
    731.4×
  187. 184TsushimaNagasaki, Japan
    731.4×
  188. 188PuliTaiwan, Taiwan
    721.4×
  189. 188OnodaYamaguchi, Japan
    721.4×
  190. 188TalcahuanoBiobio, Chile
    721.4×
  191. 191AranyaprathetSa Kaeo, Thailand
    721.4×
  192. 191Amnat CharoenAmnat Charoen, Thailand
    721.4×
  193. 191SuncheonJeollanam-do, South Korea
    721.4×
  194. 191FukuokaFukuoka, Japan
    721.4×
  195. 191ItoshimaFukuoka, Japan
    721.4×
  196. 191SaikaiNagasaki, Japan
    721.4×
  197. 197Hat YaiSongkhla, Thailand
    721.4×
  198. 197LochristiFlanders, Belgium
    721.4×
  199. 197TocopillaAntofagasta, Chile
    721.4×
  200. 200AntananarivoAnalamanga, Madagascar
    721.3×

Top 200 of 2,278 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 7, 2024, smogrank.com/history/2024-05-07 (accessed 3 Oct 2026).

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