SmogRank / History / March 16, 2023

Most polluted cities on March 16, 2023

1,176 cities ranked by their average PM2.5 over the day; the worst was Włocławek, Poland, at 55.8 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.

← Włocławek 55.8 µg/m³ 50 µg/m³15 WHO 24-hour guideline0
Every city ranked for March 16, 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. 1WłocławekKujawsko-Pomorskie, Poland
    1513.7×
  2. 2RadomskoŁódź Voivodeship, Poland
    1413.4×
  3. 3AlbanyGeorgia, United States
    1253.0×
  4. 4OtwockMazovia, Poland
    1202.9×
  5. 5AugustówPodlasie, Poland
    1152.7×
  6. 6Banja LukaSrpska, Bosnia and Herzegovina
    1132.7×
  7. 7ŁaskŁódź Voivodeship, Poland
    1062.5×
  8. 8SiedlceMazovia, Poland
    992.3×
  9. 9Bielsko-BialaSilesia, Poland
    982.3×
  10. 10Nakło nad NoteciąKujawsko-Pomorskie, Poland
    972.3×
  11. 11LegionowoMazovia, Poland
    952.2×
  12. 12KutnoŁódź Voivodeship, Poland
    932.1×
  13. 13KłodzkoLower Silesia, Poland
    932.1×
  14. 14GrajewoPodlasie, Poland
    922.1×
  15. 15JarosławSubcarpathia, Poland
    902.0×
  16. 16KościerzynaPomerania, Poland
    892.0×
  17. 17KielceŚwiętokrzyskie, Poland
    892.0×
  18. 18Czechowice-DziedziceSilesia, Poland
    892.0×
  19. 19WawerMazovia, Poland
    881.9×
  20. 20PruszkówMazovia, Poland
    881.9×
  21. 21DębicaSubcarpathia, Poland
    871.9×
  22. 22KościanGreater Poland, Poland
    871.9×
  23. 23Jastrzębie ZdrójSilesia, Poland
    871.9×
  24. 24RacibórzSilesia, Poland
    861.9×
  25. 25TarnówLesser Poland, Poland
    851.8×
  26. 25LublinLublin, Poland
    851.8×
  27. 27RzeszówSubcarpathia, Poland
    841.8×
  28. 28RadomMazovia, Poland
    841.8×
  29. 29TrussvilleAlabama, United States
    831.8×
  30. 29AugustaGeorgia, United States
    831.8×
  31. 31Phenix CityAlabama, United States
    821.7×
  32. 32KoprivnicaKoprivnica-Križevci, Croatia
    821.7×
  33. 33ToruńKujawsko-Pomorskie, Poland
    811.7×
  34. 34PułtuskMazovia, Poland
    791.6×
  35. 35GreenvilleSouth Carolina, United States
    781.6×
  36. 36ŻyrardówMazovia, Poland
    771.6×
  37. 36KatowiceSilesia, Poland
    771.6×
  38. 38MielecSubcarpathia, Poland
    771.5×
  39. 39GainesvilleGeorgia, United States
    771.5×
  40. 40ČadcaŽilina Region, Slovakia
    771.5×
  41. 41LiepājaLiepaja, Latvia
    761.5×
  42. 42KrakówLesser Poland, Poland
    761.5×
  43. 43LęborkPomerania, Poland
    761.5×
  44. 44NiskoSubcarpathia, Poland
    751.5×
  45. 44East RidgeTennessee, United States
    751.5×
  46. 46KarvináMoravian-Silesian Region, Czechia
    751.5×
  47. 47Jelenia GóraLower Silesia, Poland
    741.4×
  48. 48StarachowiceŚwiętokrzyskie, Poland
    741.4×
  49. 49BohumínMoravian-Silesian Region, Czechia
    731.4×
  50. 49PrichardAlabama, United States
    731.4×
  51. 51ŁódźŁódź Voivodeship, Poland
    731.4×
  52. 52WarsawMazovia, Poland
    731.4×
  53. 53ZamośćLublin, Poland
    721.4×
  54. 53KrapkowiceOpole Voivodeship, Poland
    721.4×
  55. 55TřinecMoravian-Silesian Region, Czechia
    721.4×
  56. 56AthensAttica, Greece
    721.4×
  57. 56GijónAsturias, Spain
    721.4×
  58. 58JasłoSubcarpathia, Poland
    721.3×
  59. 58NysaOpole Voivodeship, Poland
    721.3×
  60. 60KrosnoSubcarpathia, Poland
    711.3×
  61. 61DěčínÚstí nad Labem Region, Czechia
    701.3×
  62. 62Warner RobinsGeorgia, United States
    691.3×
  63. 63SamaAsturias, Spain
    691.3×
  64. 64OpoleOpole Voivodeship, Poland
    691.2×
  65. 64OviedoAsturias, Spain
    691.2×
  66. 66OlatheKansas, United States
    681.2×
  67. 67BydgoszczKujawsko-Pomorskie, Poland
    681.2×
  68. 67Novo MestoUrban Municipality of Novo Mesto, Slovenia
    681.2×
  69. 69West MifflinPennsylvania, United States
    681.2×
  70. 70BailénAndalusia, Spain
    681.2×
  71. 70FayettevilleNorth Carolina, United States
    681.2×
  72. 72MontgomeryAlabama, United States
    671.2×
  73. 72Ferry PassFlorida, United States
    671.2×
  74. 74CharlotteNorth Carolina, United States
    671.2×
  75. 74Saint AndrewsSouth Carolina, United States
    671.2×
  76. 76StrumicaStrumica, North Macedonia
    671.2×
  77. 76JihlavaVysocina, Czechia
    671.2×
  78. 78HattiesburgMississippi, United States
    671.2×
  79. 79PardubicePardubice Region, Czechia
    671.2×
  80. 80PrzemyślSubcarpathia, Poland
    661.2×
  81. 80BiałystokPodlasie, Poland
    661.2×
  82. 80VigoGalicia, Spain
    661.2×
  83. 83Konstancin-JeziornaMazovia, Poland
    661.1×
  84. 83ValenciaValencia, Spain
    661.1×
  85. 85MartinŽilina Region, Slovakia
    661.1×
  86. 86ŁukówLublin, Poland
    651.1×
  87. 86ŽilinaŽilina Region, Slovakia
    651.1×
  88. 86PłockMazovia, Poland
    651.1×
  89. 89KnoxvilleTennessee, United States
    651.1×
  90. 90HavířovMoravian-Silesian Region, Czechia
    651.1×
  91. 91Kansas CityKansas, United States
    651.1×
  92. 92SuwałkiPodlasie, Poland
    651.1×
  93. 93Frýdek-MístekMoravian-Silesian Region, Czechia
    641.1×
  94. 93RedfordMichigan, United States
    641.1×
  95. 95Český TěšínMoravian-Silesian Region, Czechia
    641.1×
  96. 95Kansas CityMissouri, United States
    641.1×
  97. 95NashvilleTennessee, United States
    641.1×
  98. 98EłkWarmia-Masuria, Poland
    641.1×
  99. 99CeljeUrban Municipality of Celje, Slovenia
    641.1×
  100. 100WormsRheinland-Pfalz, Germany
    631.1×
  101. 100WrocławLower Silesia, Poland
    631.1×
  102. 102ThionvilleGrand Est, France
    631.0×
  103. 103ŚwiecieKujawsko-Pomorskie, Poland
    631.0×
  104. 104AppletonWisconsin, United States
    631.0×
  105. 105SpartanburgSouth Carolina, United States
    621.0×
  106. 105ColumbiaTennessee, United States
    621.0×
  107. 107Spišská Nová VesKošice Region, Slovakia
    621.0×
  108. 107OstravaMoravian-Silesian Region, Czechia
    621.0×
  109. 107MilwaukeeWisconsin, United States
    621.0×
  110. 110OpavaMoravian-Silesian Region, Czechia
    621.0×
  111. 111KętrzynWarmia-Masuria, Poland
    621.0×
  112. 111AshevilleNorth Carolina, United States
    621.0×
  113. 113LexingtonNorth Carolina, United States
    611.0×
  114. 113Lincoln ParkMichigan, United States
    611.0×
  115. 115PristinaPristina, Kosovo
    611.0×
  116. 116OlsztynWarmia-Masuria, Poland
    611.0×
  117. 117VentspilsVentspils, Latvia
    610.9×
  118. 118PiraeusAttica, Greece
    600.9×
  119. 118MóstolesMadrid, Spain
    600.9×
  120. 118South MilwaukeeWisconsin, United States
    600.9×
  121. 121PúchovTrenčín Region, Slovakia
    600.9×
  122. 121CuencaCastille-La Mancha, Spain
    600.9×
  123. 121BellevueNebraska, United States
    600.9×
  124. 124LunévilleGrand Est, France
    600.9×
  125. 124ClintonIowa, United States
    600.9×
  126. 126ValdostaGeorgia, United States
    600.9×
  127. 126Eau ClaireWisconsin, United States
    600.9×
  128. 128SallanchesAuvergne-Rhône-Alpes, France
    590.9×
  129. 128RužomberokŽilina Region, Slovakia
    590.9×
  130. 128Ústí nad LabemÚstí nad Labem Region, Czechia
    590.9×
  131. 128La CrosseWisconsin, United States
    590.9×
  132. 132PrešovPrešov Region, Slovakia
    590.9×
  133. 132Sainte-Geneviève-des-BoisÎle-de-France, France
    590.9×
  134. 132DecaturIllinois, United States
    590.9×
  135. 132FlorenceSouth Carolina, United States
    590.9×
  136. 136ClemmonsNorth Carolina, United States
    590.9×
  137. 137BufteaIlfov, Romania
    590.9×
  138. 137ValdemoroMadrid, Spain
    590.9×
  139. 137AnkenyIowa, United States
    590.9×
  140. 140GjilanGjilan, Kosovo
    590.9×
  141. 140KalamazooMichigan, United States
    590.9×
  142. 140RutlandVermont, United States
    590.9×
  143. 143IrákleionCrete, Greece
    580.9×
  144. 143SavannahGeorgia, United States
    580.9×
  145. 145LisbonLisbon, Portugal
    580.9×
  146. 145Ludwigshafen am RheinRheinland-Pfalz, Germany
    580.9×
  147. 145Valašské MeziříčíZlín, Czechia
    580.9×
  148. 145BerounCentral Bohemia, Czechia
    580.9×
  149. 145TrbovljeMunicipality of Trbovlje, Slovenia
    580.9×
  150. 145Valley StationKentucky, United States
    580.9×
  151. 145SulphurLouisiana, United States
    580.9×
  152. 145Saint JosephMissouri, United States
    580.9×
  153. 153RēzekneRēzekne, Latvia
    580.9×
  154. 153DetroitMichigan, United States
    580.9×
  155. 155TorreviejaValencia, Spain
    580.8×
  156. 155LitvínovÚstí nad Labem Region, Czechia
    580.8×
  157. 155KranjUrban Municipality of Kranj, Slovenia
    580.8×
  158. 155IndianapolisIndiana, United States
    580.8×
  159. 155Calumet CityIllinois, United States
    580.8×
  160. 155AltamontOregon, United States
    580.8×
  161. 161PrilepPrilep, North Macedonia
    580.8×
  162. 161ParedesPorto, Portugal
    580.8×
  163. 161PilsenPlzeň Region, Czechia
    580.8×
  164. 161AshlandKentucky, United States
    580.8×
  165. 161Des MoinesIowa, United States
    580.8×
  166. 166VisbyGotland, Sweden
    570.8×
  167. 166NancyGrand Est, France
    570.8×
  168. 166CosladaMadrid, Spain
    570.8×
  169. 166EvansvilleIndiana, United States
    570.8×
  170. 166MolineIllinois, United States
    570.8×
  171. 166Grand RapidsMichigan, United States
    570.8×
  172. 172TetovoTetovo, North Macedonia
    570.8×
  173. 172PrievidzaTrenčín Region, Slovakia
    570.8×
  174. 172Mladá BoleslavCentral Bohemia, Czechia
    570.8×
  175. 172HraniceOlomouc Region, Czechia
    570.8×
  176. 172Ponta DelgadaAzores, Portugal
    570.8×
  177. 177MelillaMelilla, Spain
    570.8×
  178. 177ValladolidCastille and León, Spain
    570.8×
  179. 177CookevilleTennessee, United States
    570.8×
  180. 177JacksonTennessee, United States
    570.8×
  181. 177DearbornMichigan, United States
    570.8×
  182. 182VoluntariIlfov, Romania
    570.8×
  183. 182San IsidroCanary Islands, Spain
    570.8×
  184. 182OlomoucOlomouc Region, Czechia
    570.8×
  185. 182BrunswickGeorgia, United States
    570.8×
  186. 182Winston-SalemNorth Carolina, United States
    570.8×
  187. 182Cedar RapidsIowa, United States
    570.8×
  188. 188HumennéPrešov Region, Slovakia
    570.8×
  189. 188LučenecBanská Bystrica Region, Slovakia
    570.8×
  190. 188LiberecLiberec Region, Czechia
    570.8×
  191. 188HodonínSouth Moravian, Czechia
    570.8×
  192. 188LugoGalicia, Spain
    570.8×
  193. 188Collado-VillalbaMadrid, Spain
    570.8×
  194. 188TurinPiedmont, Italy
    570.8×
  195. 188DavenportIowa, United States
    570.8×
  196. 196PátraWest Greece, Greece
    560.8×
  197. 196JaénAndalusia, Spain
    560.8×
  198. 196Alcalá de HenaresMadrid, Spain
    560.8×
  199. 196BaytownTexas, United States
    560.8×
  200. 196WaukeshaWisconsin, United States
    560.8×

Top 200 of 1,176 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 16, 2023, smogrank.com/history/2023-03-16 (accessed 2 Oct 2026).

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