SmogRank / History / January 15, 2023

Most polluted cities on January 15, 2023

1,179 cities ranked by their average PM2.5 over the day; the worst was Strumica, North Macedonia, at 122.1 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.

← Strumica 122.1 µg/m³ 100 µg/m³15 WHO 24-hour guideline
Every city ranked for January 15, 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
    1988.1×
  2. 2VelesVeles, North Macedonia
    1594.5×
  3. 3KorçëKorçë County, Albania
    1574.3×
  4. 4SkopjeGrad Skopje, North Macedonia
    1564.2×
  5. 5GostivarGostivar, North Macedonia
    1533.9×
  6. 6KavadarciKavadarci, North Macedonia
    1533.9×
  7. 7MariglianoCampania, Italy
    1533.8×
  8. 8TetovoTetovo, North Macedonia
    1493.7×
  9. 9MitrovicëMitrovica, Kosovo
    1463.6×
  10. 10PrilepPrilep, North Macedonia
    1453.6×
  11. 11GjilanGjilan, Kosovo
    1323.2×
  12. 12BitolaBitola, North Macedonia
    1313.2×
  13. 13OhridOhrid, North Macedonia
    1253.0×
  14. 14KochaniKochani, North Macedonia
    1233.0×
  15. 15GevgelijaGevgelija, North Macedonia
    1192.9×
  16. 16KranjUrban Municipality of Kranj, Slovenia
    1172.8×
  17. 17TurinPiedmont, Italy
    1062.5×
  18. 18PátraWest Greece, Greece
    952.2×
  19. 19AthensAttica, Greece
    932.1×
  20. 19VoluntariIlfov, Romania
    932.1×
  21. 21CodleaBrașov County, Romania
    922.1×
  22. 22PejëPec, Kosovo
    912.0×
  23. 23AcerraCampania, Italy
    902.0×
  24. 23MostarFederation of B&H, Bosnia and Herzegovina
    902.0×
  25. 25BelgradeCentral Serbia, Serbia
    902.0×
  26. 26IlindenIlinden, North Macedonia
    892.0×
  27. 27BailénAndalusia, Spain
    881.9×
  28. 28IrákleionCrete, Greece
    881.9×
  29. 28Kosovo PoljePristina, Kosovo
    881.9×
  30. 30JaénAndalusia, Spain
    881.9×
  31. 31BufteaIlfov, Romania
    851.8×
  32. 32San Felice A CancelloCampania, Italy
    821.7×
  33. 33ChaniáCrete, Greece
    811.7×
  34. 34BolzanoTrentino-Alto Adige, Italy
    801.7×
  35. 35PristinaPristina, Kosovo
    801.6×
  36. 36AvignonProvence-Alpes-Côte d'Azur, France
    801.6×
  37. 37Popeşti-LeordeniIlfov, Romania
    791.6×
  38. 38BucharestBucharest, Romania
    791.6×
  39. 39ThessaloníkiCentral Macedonia, Greece
    781.6×
  40. 40PrizrenPrizren, Kosovo
    771.5×
  41. 41SavonaLiguria, Italy
    771.5×
  42. 42LjubljanaLjubljana, Slovenia
    761.5×
  43. 43SevillaAndalusia, Spain
    741.4×
  44. 44Cluj-NapocaCluj County, Romania
    731.4×
  45. 45MonacoMunicipality of Monaco, Monaco
    731.4×
  46. 46BeneventoCampania, Italy
    721.4×
  47. 47Novo MestoUrban Municipality of Novo Mesto, Slovenia
    721.3×
  48. 48GenoaLiguria, Italy
    711.3×
  49. 48KoprivnicaKoprivnica-Križevci, Croatia
    711.3×
  50. 50AostaAosta Valley, Italy
    711.3×
  51. 50West FargoNorth Dakota, United States
    711.3×
  52. 52GalatinaApulia, Italy
    711.3×
  53. 53GranadaAndalusia, Spain
    701.3×
  54. 54NîmesOccitanie, France
    701.3×
  55. 55LiberpolisCounty of Osijek-Baranja, Croatia
    701.3×
  56. 56GardanneProvence-Alpes-Côte d'Azur, France
    691.3×
  57. 56DublinOhio, United States
    691.3×
  58. 58GrazStyria, Austria
    691.3×
  59. 58ArlesProvence-Alpes-Côte d'Azur, France
    691.3×
  60. 58Falconara MarittimaThe Marches, Italy
    691.3×
  61. 61HelenaMontana, United States
    691.2×
  62. 62LučenecBanská Bystrica Region, Slovakia
    691.2×
  63. 63HumennéPrešov Region, Slovakia
    681.2×
  64. 63GrajewoPodlasie, Poland
    681.2×
  65. 65TrebišovKošice Region, Slovakia
    681.2×
  66. 66PezinokBratislava Region, Slovakia
    681.2×
  67. 67CasertaCampania, Italy
    681.2×
  68. 68WolfsbergCarinthia, Austria
    681.2×
  69. 68TrbovljeMunicipality of Trbovlje, Slovenia
    681.2×
  70. 70CraiovaDolj, Romania
    671.2×
  71. 70AlbaceteCastille-La Mancha, Spain
    671.2×
  72. 72PesaroThe Marches, Italy
    671.2×
  73. 73MeylanAuvergne-Rhône-Alpes, France
    661.2×
  74. 73San SeveroApulia, Italy
    661.2×
  75. 75KošiceKošice Region, Slovakia
    661.2×
  76. 75PylaíaCentral Macedonia, Greece
    661.2×
  77. 75RedfordMichigan, United States
    661.2×
  78. 78PiraeusAttica, Greece
    661.1×
  79. 78LecceApulia, Italy
    661.1×
  80. 80NairobiNairobi County, Kenya
    661.1×
  81. 80SenecBratislava Region, Slovakia
    661.1×
  82. 82Vranov nad TopľouPrešov Region, Slovakia
    661.1×
  83. 83AlbanyGeorgia, United States
    651.1×
  84. 84KozániWest Macedonia, Greece
    651.1×
  85. 85AsprópyrgosAttica, Greece
    651.1×
  86. 85Klagenfurt am WörtherseeCarinthia, Austria
    651.1×
  87. 85NaplesCampania, Italy
    651.1×
  88. 85CeljeUrban Municipality of Celje, Slovenia
    651.1×
  89. 89Cava Dè TirreniCampania, Italy
    651.1×
  90. 90MariborUrban Municipality of Maribor, Slovenia
    641.1×
  91. 91ValdemoroMadrid, Spain
    641.1×
  92. 92Banská BystricaBanská Bystrica Region, Slovakia
    631.0×
  93. 93OtwockMazovia, Poland
    631.0×
  94. 93IndianapolisIndiana, United States
    631.0×
  95. 95San FernandoAndalusia, Spain
    631.0×
  96. 95ClintonIowa, United States
    631.0×
  97. 97NitraNitra Region, Slovakia
    631.0×
  98. 98SallanchesAuvergne-Rhône-Alpes, France
    631.0×
  99. 99ZvolenBanská Bystrica Region, Slovakia
    621.0×
  100. 100Lincoln ParkMichigan, United States
    621.0×
  101. 101Azuqueca de HenaresCastille-La Mancha, Spain
    621.0×
  102. 102SenicaTrnava Region, Slovakia
    621.0×
  103. 102BrindisiApulia, Italy
    621.0×
  104. 102BariApulia, Italy
    621.0×
  105. 105ZnojmoSouth Moravian, Czechia
    611.0×
  106. 106LublinLublin, Poland
    611.0×
  107. 106GrenobleAuvergne-Rhône-Alpes, France
    611.0×
  108. 108KomárnoNitra Region, Slovakia
    611.0×
  109. 109TudelaNavarre, Spain
    611.0×
  110. 109HattiesburgMississippi, United States
    611.0×
  111. 111PrichardAlabama, United States
    610.9×
  112. 111DetroitMichigan, United States
    610.9×
  113. 113AugustówPodlasie, Poland
    600.9×
  114. 113Salon-de-ProvenceProvence-Alpes-Côte d'Azur, France
    600.9×
  115. 113KoperUrban Municipality of Koper, Slovenia
    600.9×
  116. 113KalamazooMichigan, United States
    600.9×
  117. 113ClevelandOhio, United States
    600.9×
  118. 118WawerMazovia, Poland
    600.9×
  119. 118BratislavaBratislava Region, Slovakia
    600.9×
  120. 120La Línea de la ConcepciónAndalusia, Spain
    590.9×
  121. 120Nocera InferioreCampania, Italy
    590.9×
  122. 122ŁukówLublin, Poland
    590.9×
  123. 122AlgecirasAndalusia, Spain
    590.9×
  124. 122MarignaneProvence-Alpes-Côte d'Azur, France
    590.9×
  125. 122TrnavaTrnava Region, Slovakia
    590.9×
  126. 122HernandoMississippi, United States
    590.9×
  127. 127PrešovPrešov Region, Slovakia
    590.9×
  128. 127SereďTrnava Region, Slovakia
    590.9×
  129. 127GulfportMississippi, United States
    590.9×
  130. 127TempeArizona, United States
    590.9×
  131. 131AnconaThe Marches, Italy
    590.9×
  132. 132GapProvence-Alpes-Côte d'Azur, France
    590.9×
  133. 132Valley StationKentucky, United States
    590.9×
  134. 134CacémLisbon, Portugal
    580.9×
  135. 134AmoraSetúbal, Portugal
    580.9×
  136. 134AvellinoCampania, Italy
    580.9×
  137. 137CártamaAndalusia, Spain
    580.9×
  138. 138TaylorMichigan, United States
    580.9×
  139. 139Spišská Nová VesKošice Region, Slovakia
    580.9×
  140. 139CartagenaMurcia, Spain
    580.9×
  141. 139LunelOccitanie, France
    580.9×
  142. 139JenisonMichigan, United States
    580.9×
  143. 143HodonínSouth Moravian, Czechia
    580.8×
  144. 143ModugnoApulia, Italy
    580.8×
  145. 145SiedlceMazovia, Poland
    570.8×
  146. 145San RoqueAndalusia, Spain
    570.8×
  147. 145VitrollesProvence-Alpes-Côte d'Azur, France
    570.8×
  148. 145MalackyBratislava Region, Slovakia
    570.8×
  149. 145YpsilantiMichigan, United States
    570.8×
  150. 150PrievidzaTrenčín Region, Slovakia
    570.8×
  151. 150East RidgeTennessee, United States
    570.8×
  152. 152EłkWarmia-Masuria, Poland
    570.8×
  153. 152OndaValencia, Spain
    570.8×
  154. 152DaxNew Aquitaine, France
    570.8×
  155. 152DearbornMichigan, United States
    570.8×
  156. 152Shaker HeightsOhio, United States
    570.8×
  157. 157ArucasCanary Islands, Spain
    570.8×
  158. 157NorwoodOhio, United States
    570.8×
  159. 157Bay CityMichigan, United States
    570.8×
  160. 160NiceProvence-Alpes-Côte d'Azur, France
    570.8×
  161. 160CasamassimaApulia, Italy
    570.8×
  162. 162BiałystokPodlasie, Poland
    560.8×
  163. 162IzegemFlanders, Belgium
    560.8×
  164. 162BrnoSouth Moravian, Czechia
    560.8×
  165. 162MadridMadrid, Spain
    560.8×
  166. 162Delray BeachFlorida, United States
    560.8×
  167. 162AndersonIndiana, United States
    560.8×
  168. 162South BendIndiana, United States
    560.8×
  169. 169Coconut CreekFlorida, United States
    560.8×
  170. 169Port HuronMichigan, United States
    560.8×
  171. 171TarantoApulia, Italy
    560.8×
  172. 171Ceglie MessapicaApulia, Italy
    560.8×
  173. 173KhalándrionAttica, Greece
    560.8×
  174. 173PalmaBalearic Islands, Spain
    560.8×
  175. 173ChalmetteLouisiana, United States
    560.8×
  176. 173OceansideCalifornia, United States
    560.8×
  177. 177Žiar nad HronomBanská Bystrica Region, Slovakia
    560.8×
  178. 177Devínska Nová VesBratislava Region, Slovakia
    560.8×
  179. 179Alcalá de HenaresMadrid, Spain
    550.8×
  180. 179AkronOhio, United States
    550.8×
  181. 179MesaArizona, United States
    550.8×
  182. 179PhoenixArizona, United States
    550.8×
  183. 183LisbonLisbon, Portugal
    550.8×
  184. 183ŽideniceSouth Moravian, Czechia
    550.8×
  185. 183Ferry PassFlorida, United States
    550.8×
  186. 183JacksonMississippi, United States
    550.8×
  187. 187SninaPrešov Region, Slovakia
    550.8×
  188. 187MilwaukeeWisconsin, United States
    550.8×
  189. 189TorreviejaValencia, Spain
    550.7×
  190. 189YakimaWashington, United States
    550.7×
  191. 191ValenceAuvergne-Rhône-Alpes, France
    550.7×
  192. 191JeffersonvilleIndiana, United States
    550.7×
  193. 191SheridanWyoming, United States
    550.7×
  194. 194BardejovPrešov Region, Slovakia
    550.7×
  195. 194MontpellierOccitanie, France
    550.7×
  196. 194PřerovOlomouc Region, Czechia
    550.7×
  197. 197Ciudad RealCastille-La Mancha, Spain
    540.7×
  198. 197LuceraApulia, Italy
    540.7×
  199. 197SteubenvilleOhio, United States
    540.7×
  200. 200FréjusProvence-Alpes-Côte d'Azur, France
    540.7×

Top 200 of 1,179 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, January 15, 2023, smogrank.com/history/2023-01-15 (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.