SmogRank / History / February 17, 2023

Most polluted cities on February 17, 2023

1,185 cities ranked by their average PM2.5 over the day; the worst was Strumica, North Macedonia, at 102.9 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 17, 2023. All episodes.

← Strumica 102.9 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for February 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. 1StrumicaStrumica, North Macedonia
    1846.9×
  2. 2MariglianoCampania, Italy
    1766.0×
  3. 3GostivarGostivar, North Macedonia
    1756.0×
  4. 4TetovoTetovo, North Macedonia
    1745.8×
  5. 5RužomberokŽilina Region, Slovakia
    1665.2×
  6. 6SkopjeGrad Skopje, North Macedonia
    1665.1×
  7. 7PrilepPrilep, North Macedonia
    1665.1×
  8. 8KavadarciKavadarci, North Macedonia
    1644.9×
  9. 9TrebišovKošice Region, Slovakia
    1634.8×
  10. 10Liptovský Mikulᚎilina Region, Slovakia
    1624.8×
  11. 11Spišská Nová VesKošice Region, Slovakia
    1604.5×
  12. 12GjilanGjilan, Kosovo
    1594.5×
  13. 13VoluntariIlfov, Romania
    1584.4×
  14. 14BelgradeCentral Serbia, Serbia
    1584.3×
  15. 15HumennéPrešov Region, Slovakia
    1554.1×
  16. 16KošiceKošice Region, Slovakia
    1523.8×
  17. 17Popeşti-LeordeniIlfov, Romania
    1513.7×
  18. 18AthensAttica, Greece
    1503.7×
  19. 18BufteaIlfov, Romania
    1503.7×
  20. 20GevgelijaGevgelija, North Macedonia
    1483.6×
  21. 21IlindenIlinden, North Macedonia
    1473.6×
  22. 22Banská BystricaBanská Bystrica Region, Slovakia
    1473.6×
  23. 23Banja LukaSrpska, Bosnia and Herzegovina
    1443.5×
  24. 24BardejovPrešov Region, Slovakia
    1443.5×
  25. 25PrešovPrešov Region, Slovakia
    1423.5×
  26. 26ŽilinaŽilina Region, Slovakia
    1403.4×
  27. 27KranjUrban Municipality of Kranj, Slovenia
    1403.4×
  28. 28KoprivnicaKoprivnica-Križevci, Croatia
    1393.4×
  29. 29KoperUrban Municipality of Koper, Slovenia
    1363.3×
  30. 30ThessaloníkiCentral Macedonia, Greece
    1363.3×
  31. 31CeljeUrban Municipality of Celje, Slovenia
    1343.3×
  32. 32KorçëKorçë County, Albania
    1343.3×
  33. 33BucharestBucharest, Romania
    1333.2×
  34. 34Cluj-NapocaCluj County, Romania
    1323.2×
  35. 35BitolaBitola, North Macedonia
    1293.1×
  36. 35PrievidzaTrenčín Region, Slovakia
    1293.1×
  37. 37LjubljanaLjubljana, Slovenia
    1263.0×
  38. 38JasłoSubcarpathia, Poland
    1263.0×
  39. 39OtwockMazovia, Poland
    1243.0×
  40. 40PartizánskeTrenčín Region, Slovakia
    1233.0×
  41. 41San Felice A CancelloCampania, Italy
    1233.0×
  42. 42PúchovTrenčín Region, Slovakia
    1222.9×
  43. 43AugustówPodlasie, Poland
    1202.9×
  44. 44MartinŽilina Region, Slovakia
    1192.9×
  45. 45SninaPrešov Region, Slovakia
    1192.9×
  46. 45LučenecBanská Bystrica Region, Slovakia
    1192.9×
  47. 47PejëPec, Kosovo
    1182.8×
  48. 48LublinLublin, Poland
    1162.8×
  49. 49AcharnésAttica, Greece
    1162.8×
  50. 49KochaniKochani, North Macedonia
    1162.8×
  51. 51ZvolenBanská Bystrica Region, Slovakia
    1162.8×
  52. 52BiałystokPodlasie, Poland
    1152.8×
  53. 52DěčínÚstí nad Labem Region, Czechia
    1152.8×
  54. 54AcerraCampania, Italy
    1132.7×
  55. 55PiraeusAttica, Greece
    1132.7×
  56. 56KielceŚwiętokrzyskie, Poland
    1122.7×
  57. 57Novo MestoUrban Municipality of Novo Mesto, Slovenia
    1102.6×
  58. 58PtujUrban Municipality of Ptuj, Slovenia
    1102.6×
  59. 59TudelaNavarre, Spain
    1092.6×
  60. 59AnconaThe Marches, Italy
    1092.6×
  61. 61BeneventoCampania, Italy
    1092.6×
  62. 62TrbovljeMunicipality of Trbovlje, Slovenia
    1082.6×
  63. 63BrindisiApulia, Italy
    1082.5×
  64. 64ZlínZlín, Czechia
    1072.5×
  65. 65GrajewoPodlasie, Poland
    1072.5×
  66. 65KomárnoNitra Region, Slovakia
    1072.5×
  67. 67TrenčínTrenčín Region, Slovakia
    1052.5×
  68. 68Nocera InferioreCampania, Italy
    1032.4×
  69. 69SiedlceMazovia, Poland
    1012.4×
  70. 70StarachowiceŚwiętokrzyskie, Poland
    1012.4×
  71. 71AsprópyrgosAttica, Greece
    1012.4×
  72. 71MitrovicëMitrovica, Kosovo
    1012.4×
  73. 73IaşiIași County, Romania
    1002.4×
  74. 74WłocławekKujawsko-Pomorskie, Poland
    1002.4×
  75. 75SenicaTrnava Region, Slovakia
    992.3×
  76. 75OlomoucOlomouc Region, Czechia
    992.3×
  77. 77ČadcaŽilina Region, Slovakia
    992.3×
  78. 78TepliceÚstí nad Labem Region, Czechia
    992.3×
  79. 78BrnoSouth Moravian, Czechia
    992.3×
  80. 80WawerMazovia, Poland
    982.3×
  81. 80TurinPiedmont, Italy
    982.3×
  82. 82OhridOhrid, North Macedonia
    982.3×
  83. 83ZamośćLublin, Poland
    982.3×
  84. 83LegionowoMazovia, Poland
    982.3×
  85. 85GalatinaApulia, Italy
    982.3×
  86. 86Kosovo PoljePristina, Kosovo
    972.3×
  87. 87BolzanoTrentino-Alto Adige, Italy
    972.2×
  88. 88CasertaCampania, Italy
    972.2×
  89. 89KłodzkoLower Silesia, Poland
    962.2×
  90. 90AvignonProvence-Alpes-Côte d'Azur, France
    962.2×
  91. 91CraiovaDolj, Romania
    962.2×
  92. 92CasamassimaApulia, Italy
    962.2×
  93. 92BariApulia, Italy
    962.2×
  94. 94RzeszówSubcarpathia, Poland
    952.2×
  95. 95ŁukówLublin, Poland
    952.2×
  96. 96EłkWarmia-Masuria, Poland
    952.2×
  97. 97MontaubanOccitanie, France
    942.2×
  98. 97Ústí nad LabemÚstí nad Labem Region, Czechia
    942.2×
  99. 99WarsawMazovia, Poland
    942.2×
  100. 99DurrësDurrës County, Albania
    942.2×
  101. 101SuwałkiPodlasie, Poland
    942.1×
  102. 102Hradec KrálovéHradec Králové Region, Czechia
    932.1×
  103. 103PátraWest Greece, Greece
    932.1×
  104. 103VitrollesProvence-Alpes-Côte d'Azur, France
    932.1×
  105. 105SamaAsturias, Spain
    922.1×
  106. 106PruszkówMazovia, Poland
    922.1×
  107. 107KrosnoSubcarpathia, Poland
    912.1×
  108. 108KętrzynWarmia-Masuria, Poland
    912.0×
  109. 109PułtuskMazovia, Poland
    912.0×
  110. 109VigoGalicia, Spain
    912.0×
  111. 111AvellinoCampania, Italy
    912.0×
  112. 112MostÚstí nad Labem Region, Czechia
    902.0×
  113. 113Žiar nad HronomBanská Bystrica Region, Slovakia
    902.0×
  114. 113MonopoliApulia, Italy
    902.0×
  115. 115Mladá BoleslavCentral Bohemia, Czechia
    902.0×
  116. 116GardanneProvence-Alpes-Côte d'Azur, France
    902.0×
  117. 117JarosławSubcarpathia, Poland
    892.0×
  118. 117SallanchesAuvergne-Rhône-Alpes, France
    892.0×
  119. 117ModugnoApulia, Italy
    892.0×
  120. 120TrnavaTrnava Region, Slovakia
    892.0×
  121. 120GetxoBasque Country, Spain
    892.0×
  122. 122PristinaPristina, Kosovo
    892.0×
  123. 123RijekaPrimorje-Gorski Kotar, Croatia
    892.0×
  124. 124HandlováTrenčín Region, Slovakia
    892.0×
  125. 125KrapkowiceOpole Voivodeship, Poland
    881.9×
  126. 125Ceglie MessapicaApulia, Italy
    881.9×
  127. 127NiskoSubcarpathia, Poland
    881.9×
  128. 128GijónAsturias, Spain
    881.9×
  129. 129ParedesPorto, Portugal
    881.9×
  130. 129SereďTrnava Region, Slovakia
    881.9×
  131. 129PardubicePardubice Region, Czechia
    881.9×
  132. 129HraniceOlomouc Region, Czechia
    881.9×
  133. 133DębicaSubcarpathia, Poland
    881.9×
  134. 133KutnoŁódź Voivodeship, Poland
    881.9×
  135. 135PezinokBratislava Region, Slovakia
    871.9×
  136. 136MarseilleProvence-Alpes-Côte d'Azur, France
    871.9×
  137. 136AltamuraApulia, Italy
    871.9×
  138. 138ArlesProvence-Alpes-Côte d'Azur, France
    871.9×
  139. 138LitvínovÚstí nad Labem Region, Czechia
    871.9×
  140. 138RacibórzSilesia, Poland
    871.9×
  141. 141ŻyrardówMazovia, Poland
    871.9×
  142. 142MarignaneProvence-Alpes-Côte d'Azur, France
    871.9×
  143. 142Cava Dè TirreniCampania, Italy
    871.9×
  144. 144KaliszGreater Poland, Poland
    861.9×
  145. 145HernaniBasque Country, Spain
    851.8×
  146. 146NairobiNairobi County, Kenya
    851.8×
  147. 147MielecSubcarpathia, Poland
    851.8×
  148. 147GrazStyria, Austria
    851.8×
  149. 149LyonAuvergne-Rhône-Alpes, France
    851.8×
  150. 149ToruńKujawsko-Pomorskie, Poland
    851.8×
  151. 149LiberpolisCounty of Osijek-Baranja, Croatia
    851.8×
  152. 152ChaniáCrete, Greece
    851.8×
  153. 152KatowiceSilesia, Poland
    851.8×
  154. 154ŁaskŁódź Voivodeship, Poland
    851.8×
  155. 154KrakówLesser Poland, Poland
    851.8×
  156. 156NitraNitra Region, Slovakia
    841.8×
  157. 157RadomMazovia, Poland
    841.8×
  158. 157Villefranche-sur-SaôneAuvergne-Rhône-Alpes, France
    841.8×
  159. 159SenecBratislava Region, Slovakia
    841.8×
  160. 160MontpellierOccitanie, France
    841.8×
  161. 161HavířovMoravian-Silesian Region, Czechia
    841.8×
  162. 162LourdesOccitanie, France
    831.8×
  163. 162DaxNew Aquitaine, France
    831.8×
  164. 162ZaragozaAragon, Spain
    831.8×
  165. 162Gasteiz / VitoriaBasque Country, Spain
    831.8×
  166. 166LecceApulia, Italy
    831.8×
  167. 167Romans-sur-IsèreAuvergne-Rhône-Alpes, France
    831.8×
  168. 167BratislavaBratislava Region, Slovakia
    831.8×
  169. 169LuceraApulia, Italy
    831.7×
  170. 169MostarFederation of B&H, Bosnia and Herzegovina
    831.7×
  171. 171ToulouseOccitanie, France
    831.7×
  172. 171Fos-sur-MerProvence-Alpes-Côte d'Azur, France
    831.7×
  173. 171OstravaMoravian-Silesian Region, Czechia
    831.7×
  174. 174KaunasKaunas, Lithuania
    821.7×
  175. 175TarantoApulia, Italy
    821.7×
  176. 176ZnojmoSouth Moravian, Czechia
    821.7×
  177. 176HodonínSouth Moravian, Czechia
    821.7×
  178. 176JesiThe Marches, Italy
    821.7×
  179. 179Falconara MarittimaThe Marches, Italy
    821.7×
  180. 180PassauBavaria, Germany
    821.7×
  181. 180Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France
    821.7×
  182. 180Český TěšínMoravian-Silesian Region, Czechia
    821.7×
  183. 183PłockMazovia, Poland
    811.7×
  184. 184Jastrzębie ZdrójSilesia, Poland
    811.7×
  185. 184AmorebietaBasque Country, Spain
    811.7×
  186. 186AnsfeldenUpper Austria, Austria
    811.7×
  187. 186ManosqueProvence-Alpes-Côte d'Azur, France
    811.7×
  188. 188Konstancin-JeziornaMazovia, Poland
    811.7×
  189. 188Valašské MeziříčíZlín, Czechia
    811.7×
  190. 190OlsztynWarmia-Masuria, Poland
    801.7×
  191. 190Klagenfurt am WörtherseeCarinthia, Austria
    801.7×
  192. 192ŚwiecieKujawsko-Pomorskie, Poland
    801.7×
  193. 193ŽideniceSouth Moravian, Czechia
    801.6×
  194. 194OviedoAsturias, Spain
    801.6×
  195. 195WolfsbergCarinthia, Austria
    791.6×
  196. 195ValenceAuvergne-Rhône-Alpes, France
    791.6×
  197. 195MeyzieuAuvergne-Rhône-Alpes, France
    791.6×
  198. 195OriaBasque Country, Spain
    791.6×
  199. 199MarmandeNew Aquitaine, France
    791.6×
  200. 199Aix-en-ProvenceProvence-Alpes-Côte d'Azur, France
    791.6×

Top 200 of 1,185 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, February 17, 2023, smogrank.com/history/2023-02-17 (accessed 2 Oct 2026).

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