SmogRank / Countries / France / August 2026

Most polluted cities in France, August 2026

104 cities in France ranked by their average PM2.5 over the 31 days. Worst: Nice at 13.5 µg/m³, #302 of 2,312 cities in the world. Cleanest: Quimper at 4.2. A city needs measurements on 70% of the days to be ranked.

  1. 1NiceProvence-Alpes-Côte d'Azur
    13.5
  2. 2CannesProvence-Alpes-Côte d'Azur
    12.0
  3. 3AjaccioCorsica
    10.8
  4. 4MarseilleProvence-Alpes-Côte d'Azur
    10.7
  5. 5BastiaCorsica
    10.4
  6. 6MarignaneProvence-Alpes-Côte d'Azur
    9.9
  7. 7MontpellierOccitanie
    9.8
  8. 8ThionvilleGrand Est
    9.4
  9. 9LunévilleGrand Est
    9.3
  10. 9GrenobleAuvergne-Rhône-Alpes
    9.3
  11. 11Romans-sur-IsèreAuvergne-Rhône-Alpes
    9.2
  12. 12CastresOccitanie
    9.0
  13. 13MontaubanOccitanie
    8.9
  14. 13AvignonProvence-Alpes-Côte d'Azur
    8.9
  15. 13Aix-en-ProvenceProvence-Alpes-Côte d'Azur
    8.9
  16. 16Salon-de-ProvenceProvence-Alpes-Côte d'Azur
    8.8
  17. 16NîmesOccitanie
    8.8
  18. 18ToulouseOccitanie
    8.6
  19. 18NancyGrand Est
    8.6
  20. 18LyonAuvergne-Rhône-Alpes
    8.6
  21. 18CalaisHauts-de-France
    8.6
  22. 18ArlesProvence-Alpes-Côte d'Azur
    8.6
  23. 18AlbertvilleAuvergne-Rhône-Alpes
    8.6
  24. 24PerpignanOccitanie
    8.5
  25. 25ValenceAuvergne-Rhône-Alpes
    8.4
  26. 26StrasbourgGrand Est
    8.3
  27. 26MulhouseGrand Est
    8.3
  28. 26MeylanAuvergne-Rhône-Alpes
    8.3
  29. 29MetzGrand Est
    8.2
  30. 29AnnemasseAuvergne-Rhône-Alpes
    8.2
  31. 31VillefontaineAuvergne-Rhône-Alpes
    8.1
  32. 31DunkirkHauts-de-France
    8.1
  33. 33Saint-AvoldGrand Est
    8.0
  34. 34ValenciennesHauts-de-France
    7.9
  35. 35MeyzieuAuvergne-Rhône-Alpes
    7.7
  36. 36RodezOccitanie
    7.6
  37. 37Le HavreNormandy
    7.5
  38. 37Bourg-en-BresseAuvergne-Rhône-Alpes
    7.5
  39. 39Saint-ÉtienneAuvergne-Rhône-Alpes
    7.4
  40. 40ChambéryAuvergne-Rhône-Alpes
    7.3
  41. 41Villefranche-sur-SaôneAuvergne-Rhône-Alpes
    7.1
  42. 41RoubaixHauts-de-France
    7.1
  43. 41LormontNew Aquitaine
    7.1
  44. 44ParisÎle-de-France
    7.0
  45. 45Mont-de-MarsanNew Aquitaine
    6.9
  46. 45DoleBourgogne-Franche-Comté
    6.9
  47. 45BordeauxNew Aquitaine
    6.9
  48. 48Boulogne-sur-MerHauts-de-France
    6.8
  49. 49TarbesOccitanie
    6.7
  50. 49PérigueuxNew Aquitaine
    6.7
  51. 49ÉpinalGrand Est
    6.7
  52. 49DenainHauts-de-France
    6.7
  53. 53ReimsGrand Est
    6.6
  54. 53LourdesOccitanie
    6.6
  55. 53LilleHauts-de-France
    6.6
  56. 56VichyAuvergne-Rhône-Alpes
    6.5
  57. 56RouenNormandy
    6.5
  58. 56DieppeNormandy
    6.5
  59. 56Clermont-FerrandAuvergne-Rhône-Alpes
    6.5
  60. 56BéthuneHauts-de-France
    6.5
  61. 61PoitiersNew Aquitaine
    6.4
  62. 61PauNew Aquitaine
    6.4
  63. 63DouaiHauts-de-France
    6.3
  64. 63CherbourgNormandy
    6.3
  65. 65Saint-QuentinHauts-de-France
    6.2
  66. 65LouviersNormandy
    6.2
  67. 67OlivetCentre-Val de Loire
    6.1
  68. 67MontluçonAuvergne-Rhône-Alpes
    6.1
  69. 67MontivilliersNormandy
    6.1
  70. 67LimogesNew Aquitaine
    6.1
  71. 71MoulinsAuvergne-Rhône-Alpes
    6.0
  72. 71MontbéliardBourgogne-Franche-Comté
    6.0
  73. 71CaenNormandy
    6.0
  74. 71AuxerreBourgogne-Franche-Comté
    6.0
  75. 71AurillacAuvergne-Rhône-Alpes
    6.0
  76. 71AngoulêmeNew Aquitaine
    6.0
  77. 77OrléansCentre-Val de Loire
    5.9
  78. 78ChartresCentre-Val de Loire
    5.8
  79. 78BrestBrittany
    5.8
  80. 80Saint-DizierGrand Est
    5.7
  81. 80BeauvaisHauts-de-France
    5.7
  82. 82RennesBrittany
    5.6
  83. 82MontargisCentre-Val de Loire
    5.6
  84. 82ÉvreuxNormandy
    5.6
  85. 82DreuxCentre-Val de Loire
    5.6
  86. 86CreilHauts-de-France
    5.5
  87. 87RambouilletÎle-de-France
    5.4
  88. 87NeversBourgogne-Franche-Comté
    5.4
  89. 87ÉtampesÎle-de-France
    5.4
  90. 87ChâteaurouxCentre-Val de Loire
    5.4
  91. 87BourgesCentre-Val de Loire
    5.4
  92. 87AmiensHauts-de-France
    5.4
  93. 93ToursCentre-Val de Loire
    5.3
  94. 93NiortNew Aquitaine
    5.3
  95. 93Joué-lès-ToursCentre-Val de Loire
    5.3
  96. 93CoulommiersÎle-de-France
    5.3
  97. 93AlençonNormandy
    5.3
  98. 98FontainebleauÎle-de-France
    5.2
  99. 98ArrasHauts-de-France
    5.2
  100. 100VannesBrittany
    5.0
  101. 101LorientBrittany
    4.9
  102. 101BloisCentre-Val de Loire
    4.9
  103. 103DomontÎle-de-France
    4.8
  104. 104QuimperBrittany
    4.2
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

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SmogRank, most polluted cities in France, PM2.5, August 2026, smogrank.com/fr/history/2026-08 (accessed 2 Oct 2026).

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