SmogRank / History / March 17, 2023

Most polluted cities on March 17, 2023

1,180 cities ranked by their average PM2.5 over the day; the worst was Banja Luka, Bosnia and Herzegovina, at 51.5 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.

← Banja Luka 51.5 µg/m³ 50 µg/m³15 WHO 24-hour guideline0
Every city ranked for March 17, 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. 1Banja LukaSrpska, Bosnia and Herzegovina
    1403.4×
  2. 2Czechowice-DziedziceSilesia, Poland
    1353.3×
  3. 3LublinLublin, Poland
    1313.2×
  4. 4BohumínMoravian-Silesian Region, Czechia
    1263.0×
  5. 5SiedlceMazovia, Poland
    1162.8×
  6. 6OtwockMazovia, Poland
    1162.8×
  7. 7WawerMazovia, Poland
    1092.6×
  8. 8Bielsko-BialaSilesia, Poland
    1072.5×
  9. 9LegionowoMazovia, Poland
    1062.5×
  10. 9GrajewoPodlasie, Poland
    1062.5×
  11. 11KrakówLesser Poland, Poland
    1032.4×
  12. 12RacibórzSilesia, Poland
    1022.4×
  13. 13WłocławekKujawsko-Pomorskie, Poland
    1012.4×
  14. 14GjilanGjilan, Kosovo
    962.2×
  15. 15StarachowiceŚwiętokrzyskie, Poland
    942.2×
  16. 15RzeszówSubcarpathia, Poland
    942.2×
  17. 17Jastrzębie ZdrójSilesia, Poland
    932.1×
  18. 18RadomMazovia, Poland
    922.1×
  19. 18KatowiceSilesia, Poland
    922.1×
  20. 20KielceŚwiętokrzyskie, Poland
    922.1×
  21. 21KutnoŁódź Voivodeship, Poland
    902.0×
  22. 22EłkWarmia-Masuria, Poland
    902.0×
  23. 22ToruńKujawsko-Pomorskie, Poland
    902.0×
  24. 24ŁukówLublin, Poland
    892.0×
  25. 25Nakło nad NoteciąKujawsko-Pomorskie, Poland
    881.9×
  26. 26PułtuskMazovia, Poland
    881.9×
  27. 27Spišská Nová VesKošice Region, Slovakia
    881.9×
  28. 28KrosnoSubcarpathia, Poland
    861.9×
  29. 29JarosławSubcarpathia, Poland
    851.8×
  30. 30WarsawMazovia, Poland
    841.8×
  31. 31OpavaMoravian-Silesian Region, Czechia
    841.8×
  32. 32ŻyrardówMazovia, Poland
    831.8×
  33. 32DębicaSubcarpathia, Poland
    831.8×
  34. 34PłockMazovia, Poland
    831.7×
  35. 35AugustówPodlasie, Poland
    821.7×
  36. 36NiskoSubcarpathia, Poland
    821.7×
  37. 37PruszkówMazovia, Poland
    821.7×
  38. 37KłodzkoLower Silesia, Poland
    821.7×
  39. 39JasłoSubcarpathia, Poland
    821.7×
  40. 40MielecSubcarpathia, Poland
    811.7×
  41. 41Konstancin-JeziornaMazovia, Poland
    811.7×
  42. 42HavířovMoravian-Silesian Region, Czechia
    801.7×
  43. 43ŚwiecieKujawsko-Pomorskie, Poland
    801.6×
  44. 43RadomskoŁódź Voivodeship, Poland
    801.6×
  45. 45ŽilinaŽilina Region, Slovakia
    791.6×
  46. 45Novo MestoUrban Municipality of Novo Mesto, Slovenia
    791.6×
  47. 47ZamośćLublin, Poland
    791.6×
  48. 48KoprivnicaKoprivnica-Križevci, Croatia
    781.6×
  49. 49NysaOpole Voivodeship, Poland
    781.6×
  50. 50BiałystokPodlasie, Poland
    781.6×
  51. 51ŁaskŁódź Voivodeship, Poland
    771.6×
  52. 52PrzemyślSubcarpathia, Poland
    771.5×
  53. 52LučenecBanská Bystrica Region, Slovakia
    771.5×
  54. 52GdyniaPomerania, Poland
    771.5×
  55. 55TarnówLesser Poland, Poland
    771.5×
  56. 56PristinaPristina, Kosovo
    771.5×
  57. 57PennsaukenNew Jersey, United States
    771.5×
  58. 58OpoleOpole Voivodeship, Poland
    761.5×
  59. 58KrapkowiceOpole Voivodeship, Poland
    761.5×
  60. 58GdańskPomerania, Poland
    761.5×
  61. 61TetovoTetovo, North Macedonia
    761.5×
  62. 61ŁódźŁódź Voivodeship, Poland
    761.5×
  63. 61CeljeUrban Municipality of Celje, Slovenia
    761.5×
  64. 64GainesvilleGeorgia, United States
    751.5×
  65. 65BitolaBitola, North Macedonia
    751.5×
  66. 65BelgradeCentral Serbia, Serbia
    751.5×
  67. 65Kędzierzyn-KoźleOpole Voivodeship, Poland
    751.5×
  68. 65SavonaLiguria, Italy
    751.5×
  69. 69RēzekneRēzekne, Latvia
    741.4×
  70. 69OstravaMoravian-Silesian Region, Czechia
    741.4×
  71. 71LiepājaLiepaja, Latvia
    741.4×
  72. 71HumennéPrešov Region, Slovakia
    741.4×
  73. 73WrocławLower Silesia, Poland
    741.4×
  74. 74LancasterPennsylvania, United States
    731.4×
  75. 75KranjUrban Municipality of Kranj, Slovenia
    721.4×
  76. 76PrešovPrešov Region, Slovakia
    721.4×
  77. 76MühlhausenThuringia, Germany
    721.4×
  78. 76MariglianoCampania, Italy
    721.4×
  79. 79KošiceKošice Region, Slovakia
    721.3×
  80. 80KarvináMoravian-Silesian Region, Czechia
    711.3×
  81. 80BensalemPennsylvania, United States
    711.3×
  82. 82PoznańGreater Poland, Poland
    711.3×
  83. 82KościanGreater Poland, Poland
    711.3×
  84. 84MartinŽilina Region, Slovakia
    711.3×
  85. 84NewarkDelaware, United States
    711.3×
  86. 86GreenvilleSouth Carolina, United States
    711.3×
  87. 87Rose HillVirginia, United States
    701.3×
  88. 88KętrzynWarmia-Masuria, Poland
    701.3×
  89. 88LęborkPomerania, Poland
    701.3×
  90. 90CodleaBrașov County, Romania
    701.3×
  91. 90RužomberokŽilina Region, Slovakia
    701.3×
  92. 92GevgelijaGevgelija, North Macedonia
    701.3×
  93. 92BydgoszczKujawsko-Pomorskie, Poland
    701.3×
  94. 94ČadcaŽilina Region, Slovakia
    691.3×
  95. 95WormsRheinland-Pfalz, Germany
    691.3×
  96. 96OlsztynWarmia-Masuria, Poland
    691.2×
  97. 96SzczecinWest Pomerania, Poland
    691.2×
  98. 98ReadingPennsylvania, United States
    691.2×
  99. 99Sainte-Geneviève-des-BoisÎle-de-France, France
    681.2×
  100. 99SpringfieldVirginia, United States
    681.2×
  101. 99ElizabethNew Jersey, United States
    681.2×
  102. 102WilmingtonDelaware, United States
    681.2×
  103. 102CharlottesvilleVirginia, United States
    681.2×
  104. 104TřinecMoravian-Silesian Region, Czechia
    681.2×
  105. 104LjubljanaLjubljana, Slovenia
    681.2×
  106. 106KadaňÚstí nad Labem Region, Czechia
    681.2×
  107. 106SopotPomerania, Poland
    681.2×
  108. 108Valašské MeziříčíZlín, Czechia
    671.2×
  109. 108PhiladelphiaPennsylvania, United States
    671.2×
  110. 110Banská BystricaBanská Bystrica Region, Slovakia
    671.2×
  111. 110OntarioCalifornia, United States
    671.2×
  112. 112PřerovOlomouc Region, Czechia
    671.2×
  113. 113GostivarGostivar, North Macedonia
    671.2×
  114. 113New York CityNew York, United States
    671.2×
  115. 115Hradec KrálovéHradec Králové Region, Czechia
    661.2×
  116. 116SkopjeGrad Skopje, North Macedonia
    661.2×
  117. 116Český TěšínMoravian-Silesian Region, Czechia
    661.2×
  118. 118Ludwigshafen am RheinRheinland-Pfalz, Germany
    661.1×
  119. 118BerounCentral Bohemia, Czechia
    661.1×
  120. 118PtujUrban Municipality of Ptuj, Slovenia
    661.1×
  121. 121OlomoucOlomouc Region, Czechia
    661.1×
  122. 121SpringfieldMassachusetts, United States
    661.1×
  123. 123TrenčínTrenčín Region, Slovakia
    661.1×
  124. 123TurinPiedmont, Italy
    661.1×
  125. 123TrbovljeMunicipality of Trbovlje, Slovenia
    661.1×
  126. 123HarrisburgPennsylvania, United States
    661.1×
  127. 123LebanonPennsylvania, United States
    661.1×
  128. 128TrebišovKošice Region, Slovakia
    661.1×
  129. 128WashingtonDistrict of Columbia, United States
    661.1×
  130. 130Gorzów WielkopolskiLubusz, Poland
    651.1×
  131. 130Jurupa ValleyCalifornia, United States
    651.1×
  132. 132ZvolenBanská Bystrica Region, Slovakia
    651.1×
  133. 132PúchovTrenčín Region, Slovakia
    651.1×
  134. 134ScaggsvilleMaryland, United States
    641.1×
  135. 134AllentownPennsylvania, United States
    641.1×
  136. 134Los AngelesCalifornia, United States
    641.1×
  137. 137NorristownPennsylvania, United States
    641.1×
  138. 138ValenciaValencia, Spain
    641.1×
  139. 138BethlehemPennsylvania, United States
    641.1×
  140. 140ElktonMaryland, United States
    641.1×
  141. 141YorkPennsylvania, United States
    641.1×
  142. 142StrumicaStrumica, North Macedonia
    631.1×
  143. 142PrilepPrilep, North Macedonia
    631.1×
  144. 142RoanokeVirginia, United States
    631.1×
  145. 145Vranov nad TopľouPrešov Region, Slovakia
    631.0×
  146. 145TrierRheinland-Pfalz, Germany
    631.0×
  147. 145HaguenauGrand Est, France
    631.0×
  148. 145Frýdek-MístekMoravian-Silesian Region, Czechia
    631.0×
  149. 149Neu-UlmBavaria, Germany
    631.0×
  150. 149PorsgrunnTelemark, Norway
    631.0×
  151. 149BearDelaware, United States
    631.0×
  152. 149Fort LeeNew Jersey, United States
    631.0×
  153. 153GrazStyria, Austria
    631.0×
  154. 153PatersonNew Jersey, United States
    631.0×
  155. 153TrentonNew Jersey, United States
    631.0×
  156. 156GijónAsturias, Spain
    631.0×
  157. 156RutlandVermont, United States
    631.0×
  158. 156BridgeportConnecticut, United States
    631.0×
  159. 159KavadarciKavadarci, North Macedonia
    621.0×
  160. 159KościerzynaPomerania, Poland
    621.0×
  161. 161ThionvilleGrand Est, France
    621.0×
  162. 161AostaAosta Valley, Italy
    621.0×
  163. 161KeeneNew Hampshire, United States
    621.0×
  164. 164Liptovský Mikulᚎilina Region, Slovakia
    621.0×
  165. 164BaltimoreMaryland, United States
    621.0×
  166. 164GreenfieldMassachusetts, United States
    621.0×
  167. 167TrnavaTrnava Region, Slovakia
    621.0×
  168. 168SuwałkiPodlasie, Poland
    611.0×
  169. 168MarratxíBalearic Islands, Spain
    611.0×
  170. 168Ústí nad LabemÚstí nad Labem Region, Czechia
    611.0×
  171. 168HickoryNorth Carolina, United States
    611.0×
  172. 172Toms RiverNew Jersey, United States
    611.0×
  173. 173LindauBavaria, Germany
    611.0×
  174. 173AvellinoCampania, Italy
    611.0×
  175. 173Winston-SalemNorth Carolina, United States
    611.0×
  176. 173New HavenConnecticut, United States
    611.0×
  177. 173PittsfieldMassachusetts, United States
    611.0×
  178. 178VentspilsVentspils, Latvia
    611.0×
  179. 178ZlínZlín, Czechia
    611.0×
  180. 178South VinelandNew Jersey, United States
    611.0×
  181. 178RiversideCalifornia, United States
    611.0×
  182. 182BeauvaisHauts-de-France, France
    611.0×
  183. 182AnnecyAuvergne-Rhône-Alpes, France
    611.0×
  184. 184Cluj-NapocaCluj County, Romania
    610.9×
  185. 184LitvínovÚstí nad Labem Region, Czechia
    610.9×
  186. 184ŚwinoujścieWest Pomerania, Poland
    610.9×
  187. 184Phenix CityAlabama, United States
    610.9×
  188. 184RichmondVirginia, United States
    610.9×
  189. 184WaterburyConnecticut, United States
    610.9×
  190. 184BakersfieldCalifornia, United States
    610.9×
  191. 191UlmBaden-Wurttemberg, Germany
    600.9×
  192. 191DunkirkHauts-de-France, France
    600.9×
  193. 191PrievidzaTrenčín Region, Slovakia
    600.9×
  194. 191MostÚstí nad Labem Region, Czechia
    600.9×
  195. 191Jelenia GóraLower Silesia, Poland
    600.9×
  196. 191South LaurelMaryland, United States
    600.9×
  197. 191PleasantvilleNew Jersey, United States
    600.9×
  198. 198SarcellesÎle-de-France, France
    600.9×
  199. 198VigoGalicia, Spain
    600.9×
  200. 198GreensboroNorth Carolina, United States
    600.9×

Top 200 of 1,180 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 17, 2023, smogrank.com/history/2023-03-17 (accessed 2 Oct 2026).

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