SmogRank / History / March 1, 2023

Most polluted cities on March 1, 2023

1,187 cities ranked by their average PM2.5 over the day; the worst was Radomsko, Poland, at 148.0 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.

Bad-air episodes during March 1, 2023. All episodes.

← Radomsko 148.0 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for March 1, 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. 1RadomskoŁódź Voivodeship, Poland
    2239.9×
  2. 2KościanGreater Poland, Poland
    1978.1×
  3. 3ŁaskŁódź Voivodeship, Poland
    1796.3×
  4. 4RzeszówSubcarpathia, Poland
    1766.1×
  5. 5KaliszGreater Poland, Poland
    1756.0×
  6. 6KłodzkoLower Silesia, Poland
    1655.0×
  7. 7RacibórzSilesia, Poland
    1644.9×
  8. 8DębicaSubcarpathia, Poland
    1634.9×
  9. 9WłocławekKujawsko-Pomorskie, Poland
    1634.9×
  10. 10TarnówLesser Poland, Poland
    1634.8×
  11. 11StarachowiceŚwiętokrzyskie, Poland
    1624.8×
  12. 12BohumínMoravian-Silesian Region, Czechia
    1604.6×
  13. 13MielecSubcarpathia, Poland
    1604.5×
  14. 14JarosławSubcarpathia, Poland
    1564.2×
  15. 15OstravaMoravian-Silesian Region, Czechia
    1544.0×
  16. 16Jastrzębie ZdrójSilesia, Poland
    1543.9×
  17. 17Frýdek-MístekMoravian-Silesian Region, Czechia
    1533.9×
  18. 18Bielsko-BialaSilesia, Poland
    1533.9×
  19. 19LublinLublin, Poland
    1533.9×
  20. 20Český TěšínMoravian-Silesian Region, Czechia
    1493.7×
  21. 21WawerMazovia, Poland
    1483.6×
  22. 21KatowiceSilesia, Poland
    1483.6×
  23. 23RadomMazovia, Poland
    1463.6×
  24. 24NysaOpole Voivodeship, Poland
    1443.5×
  25. 25HavířovMoravian-Silesian Region, Czechia
    1423.5×
  26. 25KrakówLesser Poland, Poland
    1423.5×
  27. 27KutnoŁódź Voivodeship, Poland
    1403.4×
  28. 28KrosnoSubcarpathia, Poland
    1403.4×
  29. 29KarvináMoravian-Silesian Region, Czechia
    1383.4×
  30. 30Valašské MeziříčíZlín, Czechia
    1383.4×
  31. 31Banja LukaSrpska, Bosnia and Herzegovina
    1373.3×
  32. 32Jelenia GóraLower Silesia, Poland
    1363.3×
  33. 33Kędzierzyn-KoźleOpole Voivodeship, Poland
    1333.2×
  34. 34TřinecMoravian-Silesian Region, Czechia
    1313.2×
  35. 35WrocławLower Silesia, Poland
    1313.2×
  36. 36ZamośćLublin, Poland
    1303.2×
  37. 37KrapkowiceOpole Voivodeship, Poland
    1273.1×
  38. 38JasłoSubcarpathia, Poland
    1263.0×
  39. 39TetovoTetovo, North Macedonia
    1243.0×
  40. 40Gorzów WielkopolskiLubusz, Poland
    1233.0×
  41. 41GostivarGostivar, North Macedonia
    1233.0×
  42. 42Saint AndrewsSouth Carolina, United States
    1222.9×
  43. 43SiedlceMazovia, Poland
    1212.9×
  44. 44KroměřížZlín, Czechia
    1212.9×
  45. 45Nakło nad NoteciąKujawsko-Pomorskie, Poland
    1202.9×
  46. 46OpavaMoravian-Silesian Region, Czechia
    1192.9×
  47. 47ŁukówLublin, Poland
    1182.8×
  48. 48LegionowoMazovia, Poland
    1142.7×
  49. 49ŽilinaŽilina Region, Slovakia
    1142.7×
  50. 50KielceŚwiętokrzyskie, Poland
    1132.7×
  51. 51GevgelijaGevgelija, North Macedonia
    1122.7×
  52. 52DěčínÚstí nad Labem Region, Czechia
    1112.6×
  53. 53HraniceOlomouc Region, Czechia
    1112.6×
  54. 54NiskoSubcarpathia, Poland
    1112.6×
  55. 55OtwockMazovia, Poland
    1102.6×
  56. 56OpoleOpole Voivodeship, Poland
    1092.6×
  57. 57PruszkówMazovia, Poland
    1092.6×
  58. 58ZlínZlín, Czechia
    1082.6×
  59. 59RužomberokŽilina Region, Slovakia
    1072.5×
  60. 60ŁódźŁódź Voivodeship, Poland
    1072.5×
  61. 61WarsawMazovia, Poland
    1072.5×
  62. 62HodonínSouth Moravian, Czechia
    1062.5×
  63. 62KoprivnicaKoprivnica-Križevci, Croatia
    1062.5×
  64. 64KavadarciKavadarci, North Macedonia
    1042.4×
  65. 65BerounCentral Bohemia, Czechia
    1022.4×
  66. 66ŻyrardówMazovia, Poland
    1012.4×
  67. 66PřerovOlomouc Region, Czechia
    1012.4×
  68. 68Spišská Nová VesKošice Region, Slovakia
    1002.3×
  69. 69ŻaryLubusz, Poland
    992.3×
  70. 70Novo MestoUrban Municipality of Novo Mesto, Slovenia
    982.3×
  71. 71ChaniáCrete, Greece
    982.3×
  72. 72PrilepPrilep, North Macedonia
    982.3×
  73. 73KranjUrban Municipality of Kranj, Slovenia
    972.3×
  74. 74PułtuskMazovia, Poland
    972.2×
  75. 75IrákleionCrete, Greece
    972.2×
  76. 76SallanchesAuvergne-Rhône-Alpes, France
    962.2×
  77. 77PrzemyślSubcarpathia, Poland
    962.2×
  78. 78LiberecLiberec Region, Czechia
    952.2×
  79. 79ČadcaŽilina Region, Slovakia
    952.2×
  80. 79BogatyniaLower Silesia, Poland
    952.2×
  81. 81JihlavaVysocina, Czechia
    932.1×
  82. 82PardubicePardubice Region, Czechia
    922.1×
  83. 82Hradec KrálovéHradec Králové Region, Czechia
    922.1×
  84. 84Konstancin-JeziornaMazovia, Poland
    922.1×
  85. 85PúchovTrenčín Region, Slovakia
    912.1×
  86. 85BydgoszczKujawsko-Pomorskie, Poland
    912.1×
  87. 87SenicaTrnava Region, Slovakia
    912.0×
  88. 87PoznańGreater Poland, Poland
    912.0×
  89. 89AthensAttica, Greece
    902.0×
  90. 89Cluj-NapocaCluj County, Romania
    902.0×
  91. 89TrenčínTrenčín Region, Slovakia
    902.0×
  92. 92PerchtoldsdorfLower Austria, Austria
    902.0×
  93. 93AlbertvilleAuvergne-Rhône-Alpes, France
    902.0×
  94. 94ToruńKujawsko-Pomorskie, Poland
    892.0×
  95. 95KladnoCentral Bohemia, Czechia
    892.0×
  96. 96Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    892.0×
  97. 96Coconut CreekFlorida, United States
    892.0×
  98. 98SkopjeGrad Skopje, North Macedonia
    881.9×
  99. 98OlomoucOlomouc Region, Czechia
    881.9×
  100. 98KadaňÚstí nad Labem Region, Czechia
    881.9×
  101. 101StrumicaStrumica, North Macedonia
    881.9×
  102. 102SzczecinWest Pomerania, Poland
    881.9×
  103. 103Zielona GóraLubusz, Poland
    871.9×
  104. 104MeyzieuAuvergne-Rhône-Alpes, France
    871.9×
  105. 105KlosterneuburgLower Austria, Austria
    871.9×
  106. 105CeljeUrban Municipality of Celje, Slovenia
    871.9×
  107. 107ZnojmoSouth Moravian, Czechia
    871.9×
  108. 108ŽideniceSouth Moravian, Czechia
    861.9×
  109. 109AsprópyrgosAttica, Greece
    861.9×
  110. 110MontluçonAuvergne-Rhône-Alpes, France
    861.9×
  111. 110ManosqueProvence-Alpes-Côte d'Azur, France
    861.9×
  112. 112ViennaVienna, Austria
    861.8×
  113. 113Bourg-en-BresseAuvergne-Rhône-Alpes, France
    851.8×
  114. 113TrnavaTrnava Region, Slovakia
    851.8×
  115. 115AcharnésAttica, Greece
    851.8×
  116. 116GrenobleAuvergne-Rhône-Alpes, France
    851.8×
  117. 116BrnoSouth Moravian, Czechia
    851.8×
  118. 118PraguePrague, Czechia
    851.8×
  119. 119AugustaGeorgia, United States
    851.8×
  120. 120VesoulBourgogne-Franche-Comté, France
    841.8×
  121. 120Saint-ÉtienneAuvergne-Rhône-Alpes, France
    841.8×
  122. 122PłockMazovia, Poland
    841.8×
  123. 123ValenceAuvergne-Rhône-Alpes, France
    841.8×
  124. 123Devínska Nová VesBratislava Region, Slovakia
    841.8×
  125. 125Ústí nad LabemÚstí nad Labem Region, Czechia
    831.8×
  126. 126Saint-ChamondAuvergne-Rhône-Alpes, France
    831.8×
  127. 126HandlováTrenčín Region, Slovakia
    831.8×
  128. 128Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France
    831.8×
  129. 129MeylanAuvergne-Rhône-Alpes, France
    831.7×
  130. 129FlorenceSouth Carolina, United States
    831.7×
  131. 131BéthuneHauts-de-France, France
    831.7×
  132. 132SaalfeldThuringia, Germany
    821.7×
  133. 132Aix-en-ProvenceProvence-Alpes-Côte d'Azur, France
    821.7×
  134. 132Phenix CityAlabama, United States
    821.7×
  135. 135MalackyBratislava Region, Slovakia
    821.7×
  136. 136Sankt PöltenLower Austria, Austria
    821.7×
  137. 136GreizThuringia, Germany
    821.7×
  138. 136AuxerreBourgogne-Franche-Comté, France
    821.7×
  139. 139HumennéPrešov Region, Slovakia
    811.7×
  140. 139LaredoTexas, United States
    811.7×
  141. 141MarseilleProvence-Alpes-Côte d'Azur, France
    811.7×
  142. 141MartinŽilina Region, Slovakia
    811.7×
  143. 141TepliceÚstí nad Labem Region, Czechia
    811.7×
  144. 144WarsteinNorth Rhine-Westphalia, Germany
    811.7×
  145. 144PilsenPlzeň Region, Czechia
    811.7×
  146. 144Blankenfelde-MahlowBrandenburg, Germany
    811.7×
  147. 147KrefeldNorth Rhine-Westphalia, Germany
    811.7×
  148. 147GardanneProvence-Alpes-Côte d'Azur, France
    811.7×
  149. 147Mladá BoleslavCentral Bohemia, Czechia
    811.7×
  150. 150Live OakTexas, United States
    801.7×
  151. 151SenecBratislava Region, Slovakia
    801.7×
  152. 151LiberpolisCounty of Osijek-Baranja, Croatia
    801.7×
  153. 153ChambéryAuvergne-Rhône-Alpes, France
    801.6×
  154. 154MödlingLower Austria, Austria
    801.6×
  155. 155VitrollesProvence-Alpes-Côte d'Azur, France
    801.6×
  156. 155MarignaneProvence-Alpes-Côte d'Azur, France
    801.6×
  157. 157LyonAuvergne-Rhône-Alpes, France
    791.6×
  158. 158PejëPec, Kosovo
    791.6×
  159. 158AustinTexas, United States
    791.6×
  160. 160PiraeusAttica, Greece
    791.6×
  161. 160FreiburgBaden-Wurttemberg, Germany
    791.6×
  162. 160EdinburgTexas, United States
    791.6×
  163. 163LörrachBaden-Wurttemberg, Germany
    791.6×
  164. 163AnnemasseAuvergne-Rhône-Alpes, France
    791.6×
  165. 163České BudějoviceSouth Bohemian Region, Czechia
    791.6×
  166. 166Lons-le-SaunierBourgogne-Franche-Comté, France
    791.6×
  167. 167ErfurtThuringia, Germany
    781.6×
  168. 167LučenecBanská Bystrica Region, Slovakia
    781.6×
  169. 167Liptovský Mikulᚎilina Region, Slovakia
    781.6×
  170. 167MostÚstí nad Labem Region, Czechia
    781.6×
  171. 171AmstettenLower Austria, Austria
    781.6×
  172. 171MoulinsAuvergne-Rhône-Alpes, France
    781.6×
  173. 173Kempten (Allgäu)Bavaria, Germany
    781.6×
  174. 174DurrësDurrës County, Albania
    781.6×
  175. 175KhalándrionAttica, Greece
    771.6×
  176. 175OrléansCentre-Val de Loire, France
    771.6×
  177. 175ConwaySouth Carolina, United States
    771.6×
  178. 178LiègeWallonia, Belgium
    771.5×
  179. 179AugustówPodlasie, Poland
    771.5×
  180. 179DelmenhorstLower Saxony, Germany
    771.5×
  181. 181Popeşti-LeordeniIlfov, Romania
    771.5×
  182. 181BourgesCentre-Val de Loire, France
    771.5×
  183. 181NitraNitra Region, Slovakia
    771.5×
  184. 184IlindenIlinden, North Macedonia
    771.5×
  185. 184JenaThuringia, Germany
    771.5×
  186. 184AltenburgThuringia, Germany
    771.5×
  187. 184SereďTrnava Region, Slovakia
    771.5×
  188. 184PtujUrban Municipality of Ptuj, Slovenia
    771.5×
  189. 184LjubljanaLjubljana, Slovenia
    771.5×
  190. 190AnsfeldenUpper Austria, Austria
    771.5×
  191. 190PforzheimBaden-Wurttemberg, Germany
    771.5×
  192. 190ArlesProvence-Alpes-Côte d'Azur, France
    771.5×
  193. 193SteyrUpper Austria, Austria
    761.5×
  194. 193SarcellesÎle-de-France, France
    761.5×
  195. 195OhridOhrid, North Macedonia
    761.5×
  196. 195Klagenfurt am WörtherseeCarinthia, Austria
    761.5×
  197. 197BufteaIlfov, Romania
    761.5×
  198. 197Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France
    761.5×
  199. 197CreilHauts-de-France, France
    761.5×
  200. 200BadenLower Austria, Austria
    761.5×

Top 200 of 1,187 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 1, 2023, smogrank.com/history/2023-03-01 (accessed 2 Oct 2026).

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