SmogRank / History / March 23, 2023

Most polluted cities on March 23, 2023

1,183 cities ranked by their average PM2.5 over the day; the worst was Kavadarci, North Macedonia, at 38.2 µg/m³. Each city's own local calendar day.

OpenAQ's archive, where our readings come from, has almost none for this day. Cities in the United States and Europe have it from the EPA's and the European Environment Agency's own records of the same monitors; many cities elsewhere are missing from this board, not clean. Why.

← Kavadarci 38.2 µg/m³ 30 µg/m³15 WHO 24-hour guideline0
Every city ranked for March 23, 2023, 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. 1KavadarciKavadarci, North Macedonia
    1082.5×
  2. 2OhridOhrid, North Macedonia
    992.3×
  3. 2BelgradeCentral Serbia, Serbia
    992.3×
  4. 4BitolaBitola, North Macedonia
    972.3×
  5. 5PrilepPrilep, North Macedonia
    972.2×
  6. 6TetovoTetovo, North Macedonia
    962.2×
  7. 7SkopjeGrad Skopje, North Macedonia
    952.2×
  8. 8Banja LukaSrpska, Bosnia and Herzegovina
    942.1×
  9. 9IaşiIași County, Romania
    932.1×
  10. 10MariglianoCampania, Italy
    922.1×
  11. 11AlbanyGeorgia, United States
    912.0×
  12. 12CodleaBrașov County, Romania
    892.0×
  13. 13GevgelijaGevgelija, North Macedonia
    892.0×
  14. 14GjilanGjilan, Kosovo
    881.9×
  15. 15TrenčínTrenčín Region, Slovakia
    871.9×
  16. 16BeneventoCampania, Italy
    871.9×
  17. 16KoprivnicaKoprivnica-Križevci, Croatia
    871.9×
  18. 18Popeşti-LeordeniIlfov, Romania
    861.8×
  19. 19PennsaukenNew Jersey, United States
    851.8×
  20. 20BufteaIlfov, Romania
    841.8×
  21. 21San Felice A CancelloCampania, Italy
    841.8×
  22. 22ValenciaValencia, Spain
    831.8×
  23. 22WłocławekKujawsko-Pomorskie, Poland
    831.8×
  24. 24BucharestBucharest, Romania
    831.8×
  25. 25AvellinoCampania, Italy
    831.7×
  26. 26Nocera InferioreCampania, Italy
    821.7×
  27. 27BensalemPennsylvania, United States
    811.7×
  28. 28ŽilinaŽilina Region, Slovakia
    811.7×
  29. 29KorçëKorçë County, Albania
    801.7×
  30. 30VoluntariIlfov, Romania
    801.6×
  31. 30CraiovaDolj, Romania
    801.6×
  32. 32Spišská Nová VesKošice Region, Slovakia
    801.6×
  33. 32TrnavaTrnava Region, Slovakia
    801.6×
  34. 34Lincoln ParkMichigan, United States
    791.6×
  35. 35PristinaPristina, Kosovo
    791.6×
  36. 36LučenecBanská Bystrica Region, Slovakia
    791.6×
  37. 37SenecBratislava Region, Slovakia
    781.6×
  38. 38AugustówPodlasie, Poland
    781.6×
  39. 38CeljeUrban Municipality of Celje, Slovenia
    781.6×
  40. 40GijónAsturias, Spain
    781.6×
  41. 41AcerraCampania, Italy
    781.6×
  42. 42DěčínÚstí nad Labem Region, Czechia
    771.6×
  43. 42BolzanoTrentino-Alto Adige, Italy
    771.6×
  44. 44GostivarGostivar, North Macedonia
    771.5×
  45. 44TurinPiedmont, Italy
    771.5×
  46. 46NaplesCampania, Italy
    771.5×
  47. 47CasertaCampania, Italy
    771.5×
  48. 48GrajewoPodlasie, Poland
    761.5×
  49. 48GrazStyria, Austria
    761.5×
  50. 48Phenix CityAlabama, United States
    761.5×
  51. 51Cluj-NapocaCluj County, Romania
    761.5×
  52. 52KrakówLesser Poland, Poland
    751.5×
  53. 53PúchovTrenčín Region, Slovakia
    751.5×
  54. 54KielceŚwiętokrzyskie, Poland
    741.4×
  55. 54RužomberokŽilina Region, Slovakia
    741.4×
  56. 56OtwockMazovia, Poland
    741.4×
  57. 57LiepājaLiepaja, Latvia
    741.4×
  58. 57KošiceKošice Region, Slovakia
    741.4×
  59. 59KranjUrban Municipality of Kranj, Slovenia
    741.4×
  60. 60SenicaTrnava Region, Slovakia
    741.4×
  61. 61TrebišovKošice Region, Slovakia
    731.4×
  62. 61BurrianaValencia, Spain
    731.4×
  63. 63IlindenIlinden, North Macedonia
    731.4×
  64. 64AvilésAsturias, Spain
    731.4×
  65. 65OviedoAsturias, Spain
    731.4×
  66. 65AostaAosta Valley, Italy
    731.4×
  67. 67LublinLublin, Poland
    721.4×
  68. 68ThessaloníkiCentral Macedonia, Greece
    721.4×
  69. 68MartinŽilina Region, Slovakia
    721.4×
  70. 70BohumínMoravian-Silesian Region, Czechia
    721.4×
  71. 71NewarkDelaware, United States
    721.3×
  72. 72RacibórzSilesia, Poland
    711.3×
  73. 72New York CityNew York, United States
    711.3×
  74. 74ŁukówLublin, Poland
    711.3×
  75. 74East RidgeTennessee, United States
    711.3×
  76. 76FierFier County, Albania
    711.3×
  77. 76HarrisburgPennsylvania, United States
    711.3×
  78. 78DurrësDurrës County, Albania
    711.3×
  79. 79Falconara MarittimaThe Marches, Italy
    701.3×
  80. 80PrešovPrešov Region, Slovakia
    701.3×
  81. 81WilmingtonDelaware, United States
    701.3×
  82. 81PhiladelphiaPennsylvania, United States
    701.3×
  83. 81DetroitMichigan, United States
    701.3×
  84. 84WawerMazovia, Poland
    701.3×
  85. 84BratislavaBratislava Region, Slovakia
    701.3×
  86. 84LjubljanaLjubljana, Slovenia
    701.3×
  87. 87LuceraApulia, Italy
    701.3×
  88. 87KoperUrban Municipality of Koper, Slovenia
    701.3×
  89. 89StrumicaStrumica, North Macedonia
    691.3×
  90. 89WolfsbergCarinthia, Austria
    691.3×
  91. 89BearDelaware, United States
    691.3×
  92. 89ElktonMaryland, United States
    691.3×
  93. 89ElizabethNew Jersey, United States
    691.3×
  94. 94Novo MestoUrban Municipality of Novo Mesto, Slovenia
    691.3×
  95. 95LegionowoMazovia, Poland
    691.3×
  96. 95JesiThe Marches, Italy
    691.3×
  97. 95Fort LeeNew Jersey, United States
    691.3×
  98. 98WarsawMazovia, Poland
    691.2×
  99. 98HandlováTrenčín Region, Slovakia
    691.2×
  100. 100Vranov nad TopľouPrešov Region, Slovakia
    691.2×
  101. 100BariApulia, Italy
    691.2×
  102. 100MariborUrban Municipality of Maribor, Slovenia
    691.2×
  103. 100LancasterPennsylvania, United States
    691.2×
  104. 100ReadingPennsylvania, United States
    691.2×
  105. 105MalackyBratislava Region, Slovakia
    691.2×
  106. 105LecceApulia, Italy
    691.2×
  107. 107San SeveroApulia, Italy
    681.2×
  108. 108MitrovicëMitrovica, Kosovo
    681.2×
  109. 108BailénAndalusia, Spain
    681.2×
  110. 108Banská BystricaBanská Bystrica Region, Slovakia
    681.2×
  111. 111DearbornMichigan, United States
    681.2×
  112. 112IngenioCanary Islands, Spain
    681.2×
  113. 112Nakło nad NoteciąKujawsko-Pomorskie, Poland
    681.2×
  114. 114KozániWest Macedonia, Greece
    681.2×
  115. 114OlsztynWarmia-Masuria, Poland
    681.2×
  116. 114KętrzynWarmia-Masuria, Poland
    681.2×
  117. 114EłkWarmia-Masuria, Poland
    681.2×
  118. 118GainesvilleGeorgia, United States
    671.2×
  119. 119PtujUrban Municipality of Ptuj, Slovenia
    671.2×
  120. 120TrussvilleAlabama, United States
    671.2×
  121. 120Winston-SalemNorth Carolina, United States
    671.2×
  122. 122BaltimoreMaryland, United States
    671.2×
  123. 122GreenvilleSouth Carolina, United States
    671.2×
  124. 124ModugnoApulia, Italy
    661.2×
  125. 124AndriaApulia, Italy
    661.2×
  126. 124TrentonNew Jersey, United States
    661.2×
  127. 127Klagenfurt am WörtherseeCarinthia, Austria
    661.1×
  128. 127BerounCentral Bohemia, Czechia
    661.1×
  129. 127CharlottesvilleVirginia, United States
    661.1×
  130. 130BardejovPrešov Region, Slovakia
    661.1×
  131. 130HavířovMoravian-Silesian Region, Czechia
    661.1×
  132. 130RedfordMichigan, United States
    661.1×
  133. 130NorristownPennsylvania, United States
    661.1×
  134. 134HumennéPrešov Region, Slovakia
    661.1×
  135. 134Rose HillVirginia, United States
    661.1×
  136. 136Jastrzębie ZdrójSilesia, Poland
    661.1×
  137. 136ClemmonsNorth Carolina, United States
    661.1×
  138. 138RadomMazovia, Poland
    651.1×
  139. 138MödlingLower Austria, Austria
    651.1×
  140. 138SamaAsturias, Spain
    651.1×
  141. 138GalatinaApulia, Italy
    651.1×
  142. 138SpringfieldVirginia, United States
    651.1×
  143. 138New BrunswickNew Jersey, United States
    651.1×
  144. 138AllentownPennsylvania, United States
    651.1×
  145. 145LebanonPennsylvania, United States
    651.1×
  146. 146PartizánskeTrenčín Region, Slovakia
    651.1×
  147. 146BethlehemPennsylvania, United States
    651.1×
  148. 148CasamassimaApulia, Italy
    651.1×
  149. 148AnconaThe Marches, Italy
    651.1×
  150. 148ScaggsvilleMaryland, United States
    651.1×
  151. 151Cava Dè TirreniCampania, Italy
    651.1×
  152. 152PułtuskMazovia, Poland
    641.1×
  153. 152SalernoCampania, Italy
    641.1×
  154. 154RēzekneRēzekne, Latvia
    641.1×
  155. 154Kosovo PoljePristina, Kosovo
    641.1×
  156. 154KatowiceSilesia, Poland
    641.1×
  157. 154MontgomeryAlabama, United States
    641.1×
  158. 158SuwałkiPodlasie, Poland
    641.1×
  159. 158TraunUpper Austria, Austria
    641.1×
  160. 158PesaroThe Marches, Italy
    641.1×
  161. 158EwingNew Jersey, United States
    641.1×
  162. 162PruszkówMazovia, Poland
    641.1×
  163. 162KlosterneuburgLower Austria, Austria
    641.1×
  164. 162ZvolenBanská Bystrica Region, Slovakia
    641.1×
  165. 162ToruńKujawsko-Pomorskie, Poland
    641.1×
  166. 162TrbovljeMunicipality of Trbovlje, Slovenia
    641.1×
  167. 167PátraWest Greece, Greece
    641.1×
  168. 167AnnecyAuvergne-Rhône-Alpes, France
    641.1×
  169. 167HraniceOlomouc Region, Czechia
    641.1×
  170. 167TarantoApulia, Italy
    641.1×
  171. 171JeffersonvilleIndiana, United States
    631.1×
  172. 171GreensboroNorth Carolina, United States
    631.1×
  173. 173MonopoliApulia, Italy
    631.0×
  174. 173PatersonNew Jersey, United States
    631.0×
  175. 175PerpignanOccitanie, France
    631.0×
  176. 175NitraNitra Region, Slovakia
    631.0×
  177. 175KłodzkoLower Silesia, Poland
    631.0×
  178. 175BridgeportConnecticut, United States
    631.0×
  179. 179NiskoSubcarpathia, Poland
    631.0×
  180. 179West FargoNorth Dakota, United States
    631.0×
  181. 181Santa Cruz de TenerifeCanary Islands, Spain
    631.0×
  182. 181Devínska Nová VesBratislava Region, Slovakia
    631.0×
  183. 181KaliszGreater Poland, Poland
    631.0×
  184. 181WashingtonDistrict of Columbia, United States
    631.0×
  185. 181HickoryNorth Carolina, United States
    631.0×
  186. 186BiałystokPodlasie, Poland
    631.0×
  187. 186ViennaVienna, Austria
    631.0×
  188. 186AltamuraApulia, Italy
    631.0×
  189. 189PerchtoldsdorfLower Austria, Austria
    621.0×
  190. 189ŽideniceSouth Moravian, Czechia
    621.0×
  191. 189BenicàssimValencia, Spain
    621.0×
  192. 192LinzUpper Austria, Austria
    621.0×
  193. 192CalahorraLa Rioja, Spain
    621.0×
  194. 192BrindisiApulia, Italy
    621.0×
  195. 195BrnoSouth Moravian, Czechia
    621.0×
  196. 195NapervilleIllinois, United States
    621.0×
  197. 195TaylorMichigan, United States
    621.0×
  198. 198SereďTrnava Region, Slovakia
    621.0×
  199. 198ČadcaŽilina Region, Slovakia
    621.0×
  200. 198RadomskoŁódź Voivodeship, Poland
    621.0×

Top 200 of 1,183 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

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SmogRank, most polluted cities, PM2.5, March 23, 2023, smogrank.com/history/2023-03-23 (accessed 2 Oct 2026).

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