SmogRank / History / March 15, 2024

Most polluted cities on March 15, 2024

1,554 cities ranked by their average PM2.5 over the day; the worst was N'Djamena, Chad, at 286.0 µg/m³. Each city's own local calendar day.

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

← N'Djamena 286.0 µg/m³ 200 µg/m³15 WHO 24-hour guideline
Every city ranked for March 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. 1N'DjamenaN’Djaména, Chad
    42219.1×
  2. 2Mae SaiChiang Rai, Thailand
    25011.7×
  3. 3Chiang MaiChiang Mai, Thailand
    2048.6×
  4. 3Dhakalow-cost sensorsDhaka Division, Bangladesh
    2048.6×
  5. 5SalorTashkent Region, Uzbekistan
    1937.7×
  6. 6LamphunLamphun, Thailand
    1937.7×
  7. 7PhayaoPhayao, Thailand
    1816.6×
  8. 8NanNan, Thailand
    1756.0×
  9. 9BeijingBeijing, China
    1745.9×
  10. 10PhraePhrae, Thailand
    1735.8×
  11. 11Chiang RaiChiang Rai, Thailand
    1705.5×
  12. 12SukhothaiSukhothai, Thailand
    1665.2×
  13. 13MukdahanMukdahan, Thailand
    1594.5×
  14. 14KalasinKalasin, Thailand
    1584.3×
  15. 15Kathmandulow-cost sensorsBagmati Province, Nepal
    1574.2×
  16. 16KolkataWest Bengal, India
    1564.2×
  17. 17LoeiLoei, Thailand
    1544.0×
  18. 17ShenyangLiaoning, China
    1544.0×
  19. 19HyderabadTelangana, India
    1543.9×
  20. 20UttaraditUttaradit, Thailand
    1533.9×
  21. 21YangonYangon, Myanmar
    1523.8×
  22. 22Lahorelow-cost sensorsPunjab, Pakistan
    1513.7×
  23. 23Ubon RatchathaniUbon Ratchathani, Thailand
    1483.6×
  24. 24Udon ThaniUdon Thani, Thailand
    1473.6×
  25. 25Karachilow-cost sensorsSindh, Pakistan
    1463.6×
  26. 26Chai NatChai Nat, Thailand
    1413.4×
  27. 27Roi EtRoi Et, Thailand
    1403.4×
  28. 28BakuBaki, Azerbaijan
    1373.3×
  29. 29Skarżysko-KamiennaŚwiętokrzyskie, Poland
    1343.3×
  30. 30PhichitPhichit, Thailand
    1343.3×
  31. 31ŻywiecSilesia, Poland
    1343.3×
  32. 32AugustówPodlasie, Poland
    1333.2×
  33. 33Khon KaenKhon Kaen, Thailand
    1333.2×
  34. 34YasothonYasothon, Thailand
    1323.2×
  35. 34GuangzhouGuangdong, China
    1323.2×
  36. 36RabinalBaja Verapaz, Guatemala
    1323.2×
  37. 37DębicaSubcarpathia, Poland
    1313.2×
  38. 38Wan ChaiWan Chai, Hong Kong
    1313.2×
  39. 39Sakon NakhonSakon Nakhon, Thailand
    1303.2×
  40. 40Amnat CharoenAmnat Charoen, Thailand
    1293.1×
  41. 41BaghdadBaghdad, Iraq
    1263.1×
  42. 42PljevljaPljevlja, Montenegro
    1253.0×
  43. 43SmederevoCentral Serbia, Serbia
    1253.0×
  44. 44PirotCentral Serbia, Serbia
    1243.0×
  45. 45Novi PazarCentral Serbia, Serbia
    1212.9×
  46. 46DziałdowoWarmia-Masuria, Poland
    1202.9×
  47. 46Lop BuriLopburi, Thailand
    1202.9×
  48. 48HanoiHanoi, Vietnam
    1202.9×
  49. 48GuadalajaraJalisco, Mexico
    1202.9×
  50. 50KigaliKigali, Rwanda
    1192.9×
  51. 50NišCentral Serbia, Serbia
    1192.9×
  52. 52Asunciónlow-cost sensorsAsuncion, Paraguay
    1192.9×
  53. 53Suphan BuriSuphan Buri, Thailand
    1192.9×
  54. 54Nong Bua LamphuNong Bua Lamphu, Thailand
    1172.8×
  55. 55Guatemala CityGuatemala, Guatemala
    1172.8×
  56. 56Mong KokYau Tsim Mong District, Hong Kong
    1172.8×
  57. 57ColomboWestern Province, Sri Lanka
    1162.8×
  58. 57Czechowice-DziedziceSilesia, Poland
    1162.8×
  59. 59Peshawarlow-cost sensorsKhyber Pakhtunkhwa, Pakistan
    1162.8×
  60. 60Nakhon RatchasimaNakhon Ratchasima, Thailand
    1162.8×
  61. 61MumbaiMaharashtra, India
    1152.7×
  62. 62LazarevacCentral Serbia, Serbia
    1152.7×
  63. 63Winston-SalemNorth Carolina, United States
    1122.7×
  64. 64Tuen MunTuen Mun, Hong Kong
    1112.6×
  65. 65DelhiDelhi, India
    1112.6×
  66. 66PančevoVojvodina, Serbia
    1102.6×
  67. 67San Salvador TizatlalliMéxico, Mexico
    1082.6×
  68. 68SarajevoFederation of B&H, Bosnia and Herzegovina
    1072.5×
  69. 69ClemmonsNorth Carolina, United States
    1062.5×
  70. 70Jastrzębie ZdrójSilesia, Poland
    1052.5×
  71. 71RacibórzSilesia, Poland
    1052.5×
  72. 72Si Maha PhotPrachin Buri, Thailand
    1042.5×
  73. 73PhetchabunPhetchabun, Thailand
    1042.4×
  74. 74ZemunCentral Serbia, Serbia
    1042.4×
  75. 74Prachin BuriPrachin Buri, Thailand
    1042.4×
  76. 74GreenvilleSouth Carolina, United States
    1042.4×
  77. 77ChaiyaphumChaiyaphum, Thailand
    1032.4×
  78. 78RatchaburiRatchaburi, Thailand
    1012.4×
  79. 79VictoriaCentral and Western, Hong Kong
    1002.3×
  80. 80Tai PoTai Po, Hong Kong
    992.3×
  81. 80SpartanburgSouth Carolina, United States
    992.3×
  82. 82KraljevoCentral Serbia, Serbia
    992.3×
  83. 83WłocławekKujawsko-Pomorskie, Poland
    982.3×
  84. 84Sing BuriSing Buri, Thailand
    972.3×
  85. 84UžiceCentral Serbia, Serbia
    972.3×
  86. 86Sham Shui PoSham Shui Po District, Hong Kong
    962.2×
  87. 87Islamabadlow-cost sensorsIslamabad, Pakistan
    962.2×
  88. 88Tsuen WanTsuen Wan, Hong Kong
    962.2×
  89. 89KragujevacCentral Serbia, Serbia
    962.2×
  90. 90BelgradeCentral Serbia, Serbia
    952.2×
  91. 90HickoryNorth Carolina, United States
    952.2×
  92. 92Bielsko-BialaSilesia, Poland
    952.2×
  93. 93CelayaGuanajuato, Mexico
    942.2×
  94. 94OlsztynWarmia-Masuria, Poland
    942.1×
  95. 95ObrenovacCentral Serbia, Serbia
    932.1×
  96. 96HualpénBiobio, Chile
    932.1×
  97. 97GrajewoPodlasie, Poland
    932.1×
  98. 98KrakówLesser Poland, Poland
    932.1×
  99. 99Banja LukaSrpska, Bosnia and Herzegovina
    932.1×
  100. 100Puerto VarasLos Lagos Region, Chile
    922.1×
  101. 101KaliszGreater Poland, Poland
    912.0×
  102. 102SurinSurin, Thailand
    912.0×
  103. 102Tin Shui WaiYuen Long, Hong Kong
    912.0×
  104. 102MorrisvilleNorth Carolina, United States
    912.0×
  105. 102BaytownTexas, United States
    912.0×
  106. 106MissionTexas, United States
    912.0×
  107. 107Kwai ChungKwai Tsing District, Hong Kong
    902.0×
  108. 108KatowiceSilesia, Poland
    902.0×
  109. 109CharlotteNorth Carolina, United States
    902.0×
  110. 110LexingtonNorth Carolina, United States
    902.0×
  111. 111BydgoszczKujawsko-Pomorskie, Poland
    892.0×
  112. 111San CarlosÑuble, Chile
    892.0×
  113. 113Nakhon PathomNakhon Pathom, Thailand
    892.0×
  114. 113DurhamNorth Carolina, United States
    892.0×
  115. 115AshgabatAshgabat, Turkmenistan
    881.9×
  116. 115PułtuskMazovia, Poland
    881.9×
  117. 115Nong KhaemBangkok, Thailand
    881.9×
  118. 115ElblągWarmia-Masuria, Poland
    881.9×
  119. 115RaleighNorth Carolina, United States
    881.9×
  120. 120KielceŚwiętokrzyskie, Poland
    881.9×
  121. 120KutnoŁódź Voivodeship, Poland
    881.9×
  122. 122PoznańGreater Poland, Poland
    881.9×
  123. 122GreensboroNorth Carolina, United States
    881.9×
  124. 124AthensGeorgia, United States
    881.9×
  125. 125Kędzierzyn-KoźleOpole Voivodeship, Poland
    881.9×
  126. 126EdinburgTexas, United States
    871.9×
  127. 127SuwałkiPodlasie, Poland
    871.9×
  128. 127OtwockMazovia, Poland
    871.9×
  129. 129Puente AltoSantiago Metropolitan, Chile
    861.9×
  130. 130SaraburiSaraburi, Thailand
    861.9×
  131. 130Sha TinSha Tin, Hong Kong
    861.9×
  132. 130OsornoLos Lagos Region, Chile
    861.9×
  133. 133Buri RamBuriram, Thailand
    861.9×
  134. 133East HamptonVirginia, United States
    861.9×
  135. 135MielecSubcarpathia, Poland
    851.8×
  136. 136KościanGreater Poland, Poland
    851.8×
  137. 137StarachowiceŚwiętokrzyskie, Poland
    851.8×
  138. 138YokkaichiMie, Japan
    841.8×
  139. 139GdańskPomerania, Poland
    841.8×
  140. 139Santa Anita - Los FicusLima region, Peru
    841.8×
  141. 141QuinteroValparaiso, Chile
    841.8×
  142. 142PruszkówMazovia, Poland
    841.8×
  143. 142FanlingNorth District, Hong Kong
    841.8×
  144. 144ToruńKujawsko-Pomorskie, Poland
    831.8×
  145. 145GdyniaPomerania, Poland
    831.8×
  146. 146HandaAichi, Japan
    831.7×
  147. 146OpoleOpole Voivodeship, Poland
    831.7×
  148. 146LęborkPomerania, Poland
    831.7×
  149. 149SiedlceMazovia, Poland
    821.7×
  150. 149PhuketPhuket, Thailand
    821.7×
  151. 149Roanoke RapidsNorth Carolina, United States
    821.7×
  152. 152AlbanyGeorgia, United States
    821.7×
  153. 153ShanghaiShanghai, China
    821.7×
  154. 154HikariYamaguchi, Japan
    811.7×
  155. 154NagaiYamagata, Japan
    811.7×
  156. 154MaconGeorgia, United States
    811.7×
  157. 157ŁukówLublin, Poland
    811.7×
  158. 157PhetchaburiPhetchaburi, Thailand
    811.7×
  159. 159Addis AbabaAddis Ababa, Ethiopia
    811.7×
  160. 159ŻyrardówMazovia, Poland
    811.7×
  161. 159EłkWarmia-Masuria, Poland
    811.7×
  162. 159ChennaiTamil Nadu, India
    811.7×
  163. 159Kan’onjichōKagawa, Japan
    811.7×
  164. 164CairoCairo, Egypt
    811.7×
  165. 164Konstancin-JeziornaMazovia, Poland
    811.7×
  166. 164ChesapeakeVirginia, United States
    811.7×
  167. 167LublinLublin, Poland
    811.7×
  168. 167Bishkeklow-cost sensorsBishkek, Kyrgyzstan
    811.7×
  169. 167La UniónLos Ríos Region, Chile
    811.7×
  170. 167Saphan SungBangkok, Thailand
    811.7×
  171. 171PłockMazovia, Poland
    801.7×
  172. 171Puerto MonttLos Lagos Region, Chile
    801.7×
  173. 173LegionowoMazovia, Poland
    801.6×
  174. 173Nakhon NayokNakhon Nayok, Thailand
    801.6×
  175. 173Sau Mau PingKwun Tong District, Hong Kong
    801.6×
  176. 176PrzemyślSubcarpathia, Poland
    801.6×
  177. 176San Tung Chung HangIslands, Hong Kong
    801.6×
  178. 176Warner RobinsGeorgia, United States
    801.6×
  179. 179NiskoSubcarpathia, Poland
    801.6×
  180. 179Nong ChokBangkok, Thailand
    801.6×
  181. 181ZamośćLublin, Poland
    791.6×
  182. 181RadomMazovia, Poland
    791.6×
  183. 181BiałystokPodlasie, Poland
    791.6×
  184. 184WrocławLower Silesia, Poland
    791.6×
  185. 185Khlong LuangPathum Thani, Thailand
    791.6×
  186. 185Ciudad JuárezChihuahua, Mexico
    791.6×
  187. 187TaharaAichi, Japan
    791.6×
  188. 187ZgierzŁódź Voivodeship, Poland
    791.6×
  189. 189RzeszówSubcarpathia, Poland
    791.6×
  190. 189AmagasakiHyōgo, Japan
    791.6×
  191. 189ŁaskŁódź Voivodeship, Poland
    791.6×
  192. 192TōkaiAichi, Japan
    781.6×
  193. 193SremčicaCentral Serbia, Serbia
    781.6×
  194. 193NiigataNiigata, Japan
    781.6×
  195. 193Sai MaiBangkok, Thailand
    781.6×
  196. 196AstanaAstana, Kazakhstan
    781.6×
  197. 196Bang KapiBangkok, Thailand
    781.6×
  198. 196YoukaichiShiga, Japan
    781.6×
  199. 196ShimonosekiYamaguchi, Japan
    781.6×
  200. 196MatsueShimane, Japan
    781.6×

Top 200 of 1,554 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, March 15, 2024, smogrank.com/history/2024-03-15 (accessed 3 Oct 2026).

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