SmogRank / History / May 6, 2024

Most polluted cities on May 6, 2024

2,321 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 164.0 µg/m³. Each city's own local calendar day.

Bad-air episodes during May 6, 2024. All episodes.

← N'Djamena 164.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for May 6, 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
    23910.9×
  2. 2DelhiDelhi, India
    2078.8×
  3. 3Chiang RaiChiang Rai, Thailand
    2058.7×
  4. 4Lahorelow-cost sensorsPunjab, Pakistan
    1897.3×
  5. 5Kathmandulow-cost sensorsBagmati Province, Nepal
    1786.3×
  6. 6Chiang MaiChiang Mai, Thailand
    1685.3×
  7. 7Mae SaiChiang Rai, Thailand
    1675.2×
  8. 8Santa Anita - Los FicusLima region, Peru
    1675.2×
  9. 9PhayaoPhayao, Thailand
    1644.9×
  10. 10TlaquepaqueJalisco, Mexico
    1604.6×
  11. 11NanNan, Thailand
    1604.5×
  12. 12LampangLampang, Thailand
    1604.5×
  13. 12CoyhaiqueAysén, Chile
    1604.5×
  14. 14SukhothaiSukhothai, Thailand
    1594.5×
  15. 15UttaraditUttaradit, Thailand
    1564.2×
  16. 16PhraePhrae, Thailand
    1533.9×
  17. 17JakartaJakarta, Indonesia
    1523.8×
  18. 18LamphunLamphun, Thailand
    1513.7×
  19. 19BeijingBeijing, China
    1433.5×
  20. 20Kamphaeng PhetKamphaeng Phet, Thailand
    1423.5×
  21. 21NacimientoBiobio, Chile
    1393.4×
  22. 22Dhakalow-cost sensorsDhaka Division, Bangladesh
    1363.3×
  23. 23KalasinKalasin, Thailand
    1333.2×
  24. 24PhetchabunPhetchabun, Thailand
    1313.2×
  25. 24MukdahanMukdahan, Thailand
    1313.2×
  26. 26CatañoCataño, Puerto Rico
    1303.2×
  27. 27KourouGuyane, French Guiana
    1303.1×
  28. 28Sing BuriSing Buri, Thailand
    1273.1×
  29. 29LoeiLoei, Thailand
    1263.0×
  30. 30Roi EtRoi Et, Thailand
    1233.0×
  31. 31PhichitPhichit, Thailand
    1233.0×
  32. 32Khon KaenKhon Kaen, Thailand
    1222.9×
  33. 33Nakhon SawanNakhon Sawan, Thailand
    1212.9×
  34. 34HualpénBiobio, Chile
    1202.9×
  35. 34Khlong Sam WaBangkok, Thailand
    1202.9×
  36. 36BaghdadBaghdad, Iraq
    1192.9×
  37. 37Khlong LuangPathum Thani, Thailand
    1182.8×
  38. 37Guatemala CityGuatemala, Guatemala
    1182.8×
  39. 39Bang NaBangkok, Thailand
    1172.8×
  40. 40Chai NatChai Nat, Thailand
    1162.8×
  41. 41RatchaburiRatchaburi, Thailand
    1152.8×
  42. 42Nong KhaemBangkok, Thailand
    1132.7×
  43. 42Nong Bua LamphuNong Bua Lamphu, Thailand
    1132.7×
  44. 44Hua HinPrachuap Khiri Khan, Thailand
    1132.7×
  45. 45GuangzhouGuangdong, China
    1122.7×
  46. 46Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1112.6×
  47. 47Phra Nakhon Si AyutthayaPhra Nakhon Si Ayutthaya, Thailand
    1102.6×
  48. 48Shakaskraallow-cost sensorsKwaZulu-Natal, South Africa
    1102.6×
  49. 49BangkokBangkok, Thailand
    1092.6×
  50. 49Ban Samae DamBangkok, Thailand
    1092.6×
  51. 51Phra PradaengSamut Prakan, Thailand
    1092.6×
  52. 52San Juan del RíoQuerétaro, Mexico
    1082.6×
  53. 52Puerto AysénAysén, Chile
    1082.6×
  54. 54Lop BuriLopburi, Thailand
    1082.6×
  55. 55Samut PrakanSamut Prakan, Thailand
    1072.5×
  56. 56Bang KapiBangkok, Thailand
    1062.5×
  57. 56RabinalBaja Verapaz, Guatemala
    1062.5×
  58. 56TalcaMaule Region, Chile
    1062.5×
  59. 59Khan Na YaoBangkok, Thailand
    1052.5×
  60. 60Suphan BuriSuphan Buri, Thailand
    1042.5×
  61. 61ShanghaiShanghai, China
    1042.5×
  62. 62Udon ThaniUdon Thani, Thailand
    1032.4×
  63. 63Mueang NonthaburiNonthaburi, Thailand
    1032.4×
  64. 64Amnat CharoenAmnat Charoen, Thailand
    1032.4×
  65. 65HanoiHanoi, Vietnam
    1022.4×
  66. 66RancaguaO'Higgins Region, Chile
    1012.4×
  67. 67PhetchaburiPhetchaburi, Thailand
    1012.4×
  68. 67Lak SiBangkok, Thailand
    1012.4×
  69. 69Nakhon RatchasimaNakhon Ratchasima, Thailand
    1002.4×
  70. 70SantiagoSantiago Metropolitan, Chile
    982.3×
  71. 71Nakhon PathomNakhon Pathom, Thailand
    972.3×
  72. 72SaraburiSaraburi, Thailand
    962.2×
  73. 73Ban Khlong PrawetBangkok, Thailand
    962.2×
  74. 74Laem ChabangChon Buri, Thailand
    962.2×
  75. 75Nakhon NayokNakhon Nayok, Thailand
    962.2×
  76. 76ChaiyaphumChaiyaphum, Thailand
    952.2×
  77. 77YasothonYasothon, Thailand
    952.2×
  78. 78Ban ChangRayong, Thailand
    952.2×
  79. 79Si Sa KetSi Sa Ket, Thailand
    942.2×
  80. 80Samut SakhonSamut Sakhon, Thailand
    942.2×
  81. 81Lat KrabangBangkok, Thailand
    942.1×
  82. 82ChillánÑuble, Chile
    932.1×
  83. 83GuanajuatoGuanajuato, Mexico
    932.1×
  84. 84Mae SotTak, Thailand
    932.1×
  85. 85Şabāḩ as SālimMubārak al Kabīr, Kuwait
    902.0×
  86. 86Islamabadlow-cost sensorsIslamabad, Pakistan
    902.0×
  87. 86Si Maha PhotPrachin Buri, Thailand
    902.0×
  88. 86CelayaGuanajuato, Mexico
    902.0×
  89. 89Puente AltoSantiago Metropolitan, Chile
    892.0×
  90. 90Vientianelow-cost sensorsVientiane Prefecture, Laos
    881.9×
  91. 91TalaganteSantiago Metropolitan, Chile
    881.9×
  92. 92SurinSurin, Thailand
    881.9×
  93. 93Sakon NakhonSakon Nakhon, Thailand
    871.9×
  94. 94San Luis de la PazGuanajuato, Mexico
    871.9×
  95. 95JinchengFukien, Taiwan
    871.9×
  96. 95CoronelBiobio, Chile
    871.9×
  97. 97ShenyangLiaoning, China
    861.9×
  98. 97CuranilahueBiobio, Chile
    861.9×
  99. 97CauquenesMaule Region, Chile
    861.9×
  100. 100Bang Bo DistrictSamut Prakan, Thailand
    851.8×
  101. 101YangonYangon, Myanmar
    851.8×
  102. 102Buri RamBuriram, Thailand
    851.8×
  103. 102QuillotaValparaiso, Chile
    851.8×
  104. 104San CarlosÑuble, Chile
    841.8×
  105. 105CuricóMaule Region, Chile
    841.8×
  106. 106ChiguayanteBiobio, Chile
    841.8×
  107. 107BelmopanCayo District, Belize
    831.8×
  108. 108MissionTexas, United States
    821.7×
  109. 109Ban Talat BuengChon Buri, Thailand
    821.7×
  110. 110Wan ChaiWan Chai, Hong Kong
    821.7×
  111. 111CairoCairo, Egypt
    811.7×
  112. 112RanongRanong province, Thailand
    811.7×
  113. 113RayongRayong, Thailand
    811.7×
  114. 114AranyaprathetSa Kaeo, Thailand
    801.6×
  115. 115QuinteroValparaiso, Chile
    801.6×
  116. 116La UniónLos Ríos Region, Chile
    801.6×
  117. 117Karachilow-cost sensorsSindh, Pakistan
    791.6×
  118. 118ChocopeLa Libertad, Peru
    791.6×
  119. 119OsornoLos Lagos Region, Chile
    781.6×
  120. 120TalcahuanoBiobio, Chile
    781.6×
  121. 121AntananarivoAnalamanga, Madagascar
    771.5×
  122. 121Surat ThaniSurat Thani, Thailand
    771.5×
  123. 123KolkataWest Bengal, India
    771.5×
  124. 123TemucoAraucania, Chile
    771.5×
  125. 125Villa Poeta José Gálvez BarrenecheaLima region, Peru
    771.5×
  126. 126Jacobo HunterArequipa, Peru
    761.5×
  127. 127Hat YaiSongkhla, Thailand
    761.5×
  128. 128Puerto MonttLos Lagos Region, Chile
    761.5×
  129. 129AntofagastaAntofagasta, Chile
    761.5×
  130. 130Live OakTexas, United States
    751.5×
  131. 131AshburtonCanterbury, New Zealand
    751.5×
  132. 132HsinchuTaiwan, Taiwan
    741.4×
  133. 133PattaniPattani, Thailand
    741.4×
  134. 134León de los AldamaGuanajuato, Mexico
    741.4×
  135. 135ShulinTaipei, Taiwan
    731.4×
  136. 135San Francisco De BorjaLima region, Peru
    731.4×
  137. 137SatunSatun, Thailand
    721.4×
  138. 137ConcónValparaiso, Chile
    721.4×
  139. 139VillarricaAraucania, Chile
    721.4×
  140. 139Puerto VarasLos Lagos Region, Chile
    721.4×
  141. 139Los ÁngelesBiobio, Chile
    721.4×
  142. 139CoquimboCoquimbo Region, Chile
    721.4×
  143. 143SalorTashkent Region, Uzbekistan
    721.4×
  144. 144MaputoMaputo City, Mozambique
    721.4×
  145. 145SagaeYamagata, Japan
    721.3×
  146. 146IrapuatoGuanajuato, Mexico
    711.3×
  147. 146EdinburgTexas, United States
    711.3×
  148. 146TaoyuanTaiwan, Taiwan
    711.3×
  149. 149TrangTrang, Thailand
    711.3×
  150. 150Nakhon Si ThammaratNakhon Si Thammarat, Thailand
    711.3×
  151. 151TocopillaAntofagasta, Chile
    711.3×
  152. 152ChanthaburiChanthaburi, Thailand
    711.3×
  153. 153Abujalow-cost sensorsFCT, Nigeria
    701.3×
  154. 154TratTrat, Thailand
    701.3×
  155. 154NeiliTaiwan, Taiwan
    701.3×
  156. 154ZhubeiTaiwan, Taiwan
    701.3×
  157. 157DamyangJeollanam-do, South Korea
    701.3×
  158. 158QuilpuéValparaiso, Chile
    701.3×
  159. 159TaipeiTaiwan, Taiwan
    691.3×
  160. 160ChennaiTamil Nadu, India
    691.3×
  161. 161IshinomakiMiyagi, Japan
    691.3×
  162. 162New Taipei CityTaipei, Taiwan
    691.2×
  163. 163NarathiwatNarathiwat, Thailand
    691.2×
  164. 163OurenseGalicia, Spain
    691.2×
  165. 165AcerraCampania, Italy
    681.2×
  166. 165SinanJeollanam-do, South Korea
    681.2×
  167. 167JeddahMecca Region, Saudi Arabia
    681.2×
  168. 167YesanChungcheongnam-do, South Korea
    681.2×
  169. 167YamagataYamagata, Japan
    681.2×
  170. 167San AntonioTexas, United States
    681.2×
  171. 171SarajevoFederation of B&H, Bosnia and Herzegovina
    671.2×
  172. 172XizhiTaipei, Taiwan
    671.2×
  173. 172SaginawTexas, United States
    671.2×
  174. 174DaxiTaiwan, Taiwan
    671.2×
  175. 174São PauloSão Paulo, Brazil
    671.2×
  176. 176AomoriAomori, Japan
    671.2×
  177. 177YalaYala, Thailand
    661.2×
  178. 177Tai PoTai Po, Hong Kong
    661.2×
  179. 177ToméBiobio, Chile
    661.2×
  180. 180JangheungJeollanam-do, South Korea
    661.1×
  181. 180Viña del MarValparaiso, Chile
    661.1×
  182. 180ShakopeeMinnesota, United States
    661.1×
  183. 183MiaoliTaiwan, Taiwan
    661.1×
  184. 183Jeju CityJeju-do, South Korea
    661.1×
  185. 183La SerenaCoquimbo Region, Chile
    661.1×
  186. 183AustinTexas, United States
    661.1×
  187. 187San Miguel de AllendeGuanajuato, Mexico
    651.1×
  188. 188ZhushanTaiwan, Taiwan
    651.1×
  189. 188Koch'angJeollabuk-do, South Korea
    651.1×
  190. 190Addis AbabaAddis Ababa, Ethiopia
    651.1×
  191. 190Kuala LumpurKuala Lumpur, Malaysia
    651.1×
  192. 192ĆuprijaCentral Serbia, Serbia
    651.1×
  193. 193NangenJeollabuk-do, South Korea
    641.1×
  194. 193AricaArica y Parinacota Region, Chile
    641.1×
  195. 195HachinoheAomori, Japan
    641.1×
  196. 195CopiapóAtacama, Chile
    641.1×
  197. 195San Pedro de la PazBiobio, Chile
    641.1×
  198. 198SeogwipoJeju-do, South Korea
    641.1×
  199. 199GwangjuGwangju, South Korea
    641.1×
  200. 199Accralow-cost sensorsGreater Accra, Ghana
    641.1×

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 6, 2024, smogrank.com/history/2024-05-06 (accessed 3 Oct 2026).

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