SmogRank / History / February 9, 2023

Most polluted cities on February 9, 2023

1,182 cities ranked by their average PM2.5 over the day; the worst was Banja Luka, Bosnia and Herzegovina, at 86.2 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.

Bad-air episodes during February 9, 2023. All episodes.

← Banja Luka 86.2 µg/m³ 80 µg/m³15 WHO 24-hour guideline
Every city ranked for February 9, 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
    1735.7×
  2. 2Spišská Nová VesKošice Region, Slovakia
    1725.7×
  3. 3MartinŽilina Region, Slovakia
    1705.5×
  4. 4RužomberokŽilina Region, Slovakia
    1685.3×
  5. 5KrosnoSubcarpathia, Poland
    1685.3×
  6. 6StrumicaStrumica, North Macedonia
    1675.2×
  7. 7JasłoSubcarpathia, Poland
    1665.1×
  8. 8KavadarciKavadarci, North Macedonia
    1655.0×
  9. 9DębicaSubcarpathia, Poland
    1655.0×
  10. 10Novo MestoUrban Municipality of Novo Mesto, Slovenia
    1594.5×
  11. 11KrakówLesser Poland, Poland
    1574.2×
  12. 12LublinLublin, Poland
    1574.2×
  13. 13NiskoSubcarpathia, Poland
    1564.2×
  14. 14CodleaBrașov County, Romania
    1554.1×
  15. 15PrilepPrilep, North Macedonia
    1554.1×
  16. 16RzeszówSubcarpathia, Poland
    1544.0×
  17. 17StarachowiceŚwiętokrzyskie, Poland
    1533.9×
  18. 18Nakło nad NoteciąKujawsko-Pomorskie, Poland
    1533.9×
  19. 19OrléansCentre-Val de Loire, France
    1523.8×
  20. 20BitolaBitola, North Macedonia
    1523.8×
  21. 21PrzemyślSubcarpathia, Poland
    1513.7×
  22. 22WłocławekKujawsko-Pomorskie, Poland
    1483.6×
  23. 23BohumínMoravian-Silesian Region, Czechia
    1483.6×
  24. 24GostivarGostivar, North Macedonia
    1473.6×
  25. 25ŽilinaŽilina Region, Slovakia
    1473.6×
  26. 26Liptovský Mikulᚎilina Region, Slovakia
    1463.6×
  27. 27MielecSubcarpathia, Poland
    1443.5×
  28. 28KaliszGreater Poland, Poland
    1433.5×
  29. 29IaşiIași County, Romania
    1423.5×
  30. 29Bielsko-BialaSilesia, Poland
    1423.5×
  31. 31ZamośćLublin, Poland
    1423.5×
  32. 31MoulinsAuvergne-Rhône-Alpes, France
    1423.5×
  33. 33GevgelijaGevgelija, North Macedonia
    1393.4×
  34. 33La Roche-sur-YonPays de la Loire, France
    1393.4×
  35. 35TetovoTetovo, North Macedonia
    1383.4×
  36. 36KielceŚwiętokrzyskie, Poland
    1373.4×
  37. 37TroyesGrand Est, France
    1373.3×
  38. 38JarosławSubcarpathia, Poland
    1373.3×
  39. 39AngersPays de la Loire, France
    1353.3×
  40. 40ŁukówLublin, Poland
    1343.3×
  41. 41SkopjeGrad Skopje, North Macedonia
    1323.2×
  42. 42ChâteaurouxCentre-Val de Loire, France
    1323.2×
  43. 43Jastrzębie ZdrójSilesia, Poland
    1323.2×
  44. 44Sainte-Geneviève-des-BoisÎle-de-France, France
    1323.2×
  45. 45Banská BystricaBanská Bystrica Region, Slovakia
    1313.2×
  46. 46Joué-lès-ToursCentre-Val de Loire, France
    1303.1×
  47. 47NantesPays de la Loire, France
    1293.1×
  48. 48ParisÎle-de-France, France
    1283.1×
  49. 48ČadcaŽilina Region, Slovakia
    1283.1×
  50. 50NysaOpole Voivodeship, Poland
    1283.1×
  51. 51KatowiceSilesia, Poland
    1273.1×
  52. 52ToruńKujawsko-Pomorskie, Poland
    1263.1×
  53. 53OtwockMazovia, Poland
    1253.0×
  54. 54Cluj-NapocaCluj County, Romania
    1233.0×
  55. 54TrenčínTrenčín Region, Slovakia
    1233.0×
  56. 56VoluntariIlfov, Romania
    1233.0×
  57. 57SarcellesÎle-de-France, France
    1222.9×
  58. 58WawerMazovia, Poland
    1212.9×
  59. 58OlivetCentre-Val de Loire, France
    1212.9×
  60. 60TarnówLesser Poland, Poland
    1212.9×
  61. 61BufteaIlfov, Romania
    1202.9×
  62. 62SiedlceMazovia, Poland
    1202.9×
  63. 62ŚwiecieKujawsko-Pomorskie, Poland
    1202.9×
  64. 62RacibórzSilesia, Poland
    1202.9×
  65. 65PřerovOlomouc Region, Czechia
    1192.9×
  66. 66PułtuskMazovia, Poland
    1172.8×
  67. 66TrbovljeMunicipality of Trbovlje, Slovenia
    1172.8×
  68. 68ChartresCentre-Val de Loire, France
    1172.8×
  69. 69BordeauxNew Aquitaine, France
    1162.8×
  70. 70LegionowoMazovia, Poland
    1162.8×
  71. 70Le MansPays de la Loire, France
    1162.8×
  72. 72AnnemasseAuvergne-Rhône-Alpes, France
    1162.8×
  73. 73PłockMazovia, Poland
    1152.8×
  74. 74LučenecBanská Bystrica Region, Slovakia
    1152.7×
  75. 74KutnoŁódź Voivodeship, Poland
    1152.7×
  76. 76PoitiersNew Aquitaine, France
    1152.7×
  77. 77RouenNormandy, France
    1152.7×
  78. 77BloisCentre-Val de Loire, France
    1152.7×
  79. 79RennesBrittany, France
    1142.7×
  80. 80RambouilletÎle-de-France, France
    1142.7×
  81. 80MelunÎle-de-France, France
    1142.7×
  82. 82BeauvaisHauts-de-France, France
    1132.7×
  83. 82CeljeUrban Municipality of Celje, Slovenia
    1132.7×
  84. 84TrebišovKošice Region, Slovakia
    1132.7×
  85. 84ElblągWarmia-Masuria, Poland
    1132.7×
  86. 86PtujUrban Municipality of Ptuj, Slovenia
    1122.7×
  87. 87ToursCentre-Val de Loire, France
    1122.7×
  88. 88CraiovaDolj, Romania
    1122.7×
  89. 88BihaćFederation of B&H, Bosnia and Herzegovina
    1122.7×
  90. 90RadomMazovia, Poland
    1112.6×
  91. 90IngolstadtBavaria, Germany
    1112.6×
  92. 92Saint-NazairePays de la Loire, France
    1112.6×
  93. 92BourgesCentre-Val de Loire, France
    1112.6×
  94. 94MenenFlanders, Belgium
    1112.6×
  95. 95WarsawMazovia, Poland
    1102.6×
  96. 96CoulommiersÎle-de-France, France
    1092.6×
  97. 97PrešovPrešov Region, Slovakia
    1092.6×
  98. 98RoubaixHauts-de-France, France
    1092.6×
  99. 99MontargisCentre-Val de Loire, France
    1092.6×
  100. 100OpavaMoravian-Silesian Region, Czechia
    1082.6×
  101. 101Le HavreNormandy, France
    1072.5×
  102. 102PruszkówMazovia, Poland
    1072.5×
  103. 102KadaňÚstí nad Labem Region, Czechia
    1072.5×
  104. 104KościerzynaPomerania, Poland
    1072.5×
  105. 105KošiceKošice Region, Slovakia
    1062.5×
  106. 106NiortNew Aquitaine, France
    1052.5×
  107. 107OlomoucOlomouc Region, Czechia
    1052.5×
  108. 108GrajewoPodlasie, Poland
    1052.5×
  109. 108KrapkowiceOpole Voivodeship, Poland
    1052.5×
  110. 110AnsbachBavaria, Germany
    1052.5×
  111. 110BéthuneHauts-de-France, France
    1052.5×
  112. 112AugustówPodlasie, Poland
    1042.4×
  113. 113ŻyrardówMazovia, Poland
    1042.4×
  114. 113PoznańGreater Poland, Poland
    1042.4×
  115. 115WrocławLower Silesia, Poland
    1032.4×
  116. 116CreilHauts-de-France, France
    1032.4×
  117. 117DreuxCentre-Val de Loire, France
    1032.4×
  118. 118KłodzkoLower Silesia, Poland
    1032.4×
  119. 119WaregemFlanders, Belgium
    1022.4×
  120. 120PúchovTrenčín Region, Slovakia
    1002.4×
  121. 121IlindenIlinden, North Macedonia
    992.3×
  122. 121LęborkPomerania, Poland
    992.3×
  123. 123Valašské MeziříčíZlín, Czechia
    992.3×
  124. 124Ludwigshafen am RheinRheinland-Pfalz, Germany
    992.3×
  125. 125RadomskoŁódź Voivodeship, Poland
    992.3×
  126. 126La RochelleNew Aquitaine, France
    982.3×
  127. 127LisieuxNormandy, France
    982.3×
  128. 128TarbesOccitanie, France
    982.3×
  129. 129IzegemFlanders, Belgium
    972.3×
  130. 129VesoulBourgogne-Franche-Comté, France
    972.3×
  131. 129ZvolenBanská Bystrica Region, Slovakia
    972.3×
  132. 129HraniceOlomouc Region, Czechia
    972.3×
  133. 133StrasbourgGrand Est, France
    972.3×
  134. 134LyonAuvergne-Rhône-Alpes, France
    972.2×
  135. 134Jelenia GóraLower Silesia, Poland
    972.2×
  136. 136Gorzów WielkopolskiLubusz, Poland
    962.2×
  137. 137HavířovMoravian-Silesian Region, Czechia
    962.2×
  138. 138HumennéPrešov Region, Slovakia
    962.2×
  139. 138Saint-DizierGrand Est, France
    962.2×
  140. 140BiałystokPodlasie, Poland
    962.2×
  141. 141AlençonNormandy, France
    952.2×
  142. 142MontbéliardBourgogne-Franche-Comté, France
    952.2×
  143. 142GivorsAuvergne-Rhône-Alpes, France
    952.2×
  144. 144Neu-UlmBavaria, Germany
    952.2×
  145. 144MulhouseGrand Est, France
    952.2×
  146. 144LunévilleGrand Est, France
    952.2×
  147. 147RoeselareFlanders, Belgium
    942.2×
  148. 147Český TěšínMoravian-Silesian Region, Czechia
    942.2×
  149. 149Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France
    942.2×
  150. 149DomontÎle-de-France, France
    942.2×
  151. 151WormsRheinland-Pfalz, Germany
    942.1×
  152. 151ÉvreuxNormandy, France
    942.1×
  153. 153CouëronPays de la Loire, France
    942.1×
  154. 154Chalon-sur-SaôneBourgogne-Franche-Comté, France
    942.1×
  155. 155VisbyGotland, Sweden
    932.1×
  156. 155MeyzieuAuvergne-Rhône-Alpes, France
    932.1×
  157. 155ZlínZlín, Czechia
    932.1×
  158. 158AuxerreBourgogne-Franche-Comté, France
    932.1×
  159. 159PezinokBratislava Region, Slovakia
    932.1×
  160. 160KętrzynWarmia-Masuria, Poland
    932.1×
  161. 160VerdunGrand Est, France
    932.1×
  162. 160HaguenauGrand Est, France
    932.1×
  163. 163CaenNormandy, France
    932.1×
  164. 164DieppeNormandy, France
    932.1×
  165. 165Vranov nad TopľouPrešov Region, Slovakia
    922.1×
  166. 165MühlhausenThuringia, Germany
    922.1×
  167. 165LjubljanaLjubljana, Slovenia
    922.1×
  168. 168Bourg-en-BresseAuvergne-Rhône-Alpes, France
    922.1×
  169. 169Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    922.1×
  170. 169ŁaskŁódź Voivodeship, Poland
    922.1×
  171. 171OlsztynWarmia-Masuria, Poland
    922.1×
  172. 171Saint-MaloBrittany, France
    922.1×
  173. 171BydgoszczKujawsko-Pomorskie, Poland
    922.1×
  174. 174OstravaMoravian-Silesian Region, Czechia
    922.1×
  175. 175GroßostheimBavaria, Germany
    912.1×
  176. 176SpeyerRheinland-Pfalz, Germany
    912.0×
  177. 177Montceau-les-MinesBourgogne-Franche-Comté, France
    912.0×
  178. 177BakersfieldCalifornia, United States
    912.0×
  179. 179SallanchesAuvergne-Rhône-Alpes, France
    912.0×
  180. 180VannesBrittany, France
    902.0×
  181. 180OpoleOpole Voivodeship, Poland
    902.0×
  182. 182NancyGrand Est, France
    902.0×
  183. 183NeuwiedRheinland-Pfalz, Germany
    902.0×
  184. 183ForbachGrand Est, France
    902.0×
  185. 185NairobiNairobi County, Kenya
    902.0×
  186. 185AugsburgBavaria, Germany
    902.0×
  187. 185PartizánskeTrenčín Region, Slovakia
    902.0×
  188. 188BesançonBourgogne-Franche-Comté, France
    892.0×
  189. 189HanfordCalifornia, United States
    892.0×
  190. 190BardejovPrešov Region, Slovakia
    892.0×
  191. 190EvergemFlanders, Belgium
    892.0×
  192. 190LormontNew Aquitaine, France
    892.0×
  193. 190DunkirkHauts-de-France, France
    892.0×
  194. 190MostÚstí nad Labem Region, Czechia
    892.0×
  195. 195TübingenBaden-Wurttemberg, Germany
    892.0×
  196. 195ChambéryAuvergne-Rhône-Alpes, France
    892.0×
  197. 197AnnecyAuvergne-Rhône-Alpes, France
    892.0×
  198. 198DouaiHauts-de-France, France
    881.9×
  199. 198DaxNew Aquitaine, France
    881.9×
  200. 198HandlováTrenčín Region, Slovakia
    881.9×

Top 200 of 1,182 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

Use this board

SmogRank, most polluted cities, PM2.5, February 9, 2023, smogrank.com/history/2023-02-09 (accessed 2 Oct 2026).

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms.