SmogRank / World / France / March 2025

Most polluted cities in France, March 2025

86 cities in France ranked by their average PM2.5 over the 31 days. Worst: Dunkirk at 21.5 µg/m³, #485 of 2,500 cities in the world. Cleanest: Aurillac at 5.2. A city needs measurements on 70% of the days to be ranked.

← Dunkirk 21.5
Every city in France ranked for March 2025, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1DunkirkHauts-de-France
    74
  2. 2DouaiHauts-de-France
    69
  3. 3ValenciennesHauts-de-France
    67
  4. 4ReimsGrand Est
    66
  5. 5StrasbourgGrand Est
    66
  6. 6DenainHauts-de-France
    66
  7. 7NancyGrand Est
    65
  8. 8CreilHauts-de-France
    65
  9. 9Le HavreNormandy
    64
  10. 9AmiensHauts-de-France
    64
  11. 11MontbéliardBourgogne-Franche-Comté
    64
  12. 12CoulommiersÎle-de-France
    63
  13. 13RouenNormandy
    63
  14. 14Saint-QuentinHauts-de-France
    63
  15. 15MulhouseGrand Est
    63
  16. 16ParisÎle-de-France
    62
  17. 17DieppeNormandy
    61
  18. 18LouviersNormandy
    60
  19. 19ThionvilleGrand Est
    60
  20. 20OrléansCentre-Val de Loire
    60
  21. 20CherbourgNormandy
    60
  22. 22ÉpinalGrand Est
    60
  23. 23ÉvreuxNormandy
    59
  24. 24RambouilletÎle-de-France
    59
  25. 25Saint-DizierGrand Est
    59
  26. 25MetzGrand Est
    59
  27. 27OlivetCentre-Val de Loire
    59
  28. 28Saint-AvoldGrand Est
    58
  29. 28RennesBrittany
    58
  30. 28CaenNormandy
    58
  31. 31ChartresCentre-Val de Loire
    58
  32. 32DreuxCentre-Val de Loire
    57
  33. 33AuxerreBourgogne-Franche-Comté
    57
  34. 33AlençonNormandy
    57
  35. 35MontargisCentre-Val de Loire
    57
  36. 36DomontÎle-de-France
    56
  37. 37ÉtampesÎle-de-France
    56
  38. 37ChâteaurouxCentre-Val de Loire
    56
  39. 39BloisCentre-Val de Loire
    55
  40. 40VannesBrittany
    55
  41. 40PoitiersNew Aquitaine
    55
  42. 40BrestBrittany
    55
  43. 43LorientBrittany
    55
  44. 43FontainebleauÎle-de-France
    55
  45. 43DoleBourgogne-Franche-Comté
    55
  46. 46Romans-sur-IsèreAuvergne-Rhône-Alpes
    55
  47. 47BourgesCentre-Val de Loire
    54
  48. 48Joué-lès-ToursCentre-Val de Loire
    54
  49. 49AnnemasseAuvergne-Rhône-Alpes
    53
  50. 50ToursCentre-Val de Loire
    53
  51. 51QuimperBrittany
    53
  52. 52GrenobleAuvergne-Rhône-Alpes
    52
  53. 53MoulinsAuvergne-Rhône-Alpes
    52
  54. 54ArlesProvence-Alpes-Côte d'Azur
    51
  55. 55MeylanAuvergne-Rhône-Alpes
    51
  56. 56Villefranche-sur-SaôneAuvergne-Rhône-Alpes
    50
  57. 56ValenceAuvergne-Rhône-Alpes
    50
  58. 56LyonAuvergne-Rhône-Alpes
    50
  59. 59AvignonProvence-Alpes-Côte d'Azur
    49
  60. 60VillefontaineAuvergne-Rhône-Alpes
    49
  61. 61VichyAuvergne-Rhône-Alpes
    48
  62. 61MontluçonAuvergne-Rhône-Alpes
    48
  63. 63LormontNew Aquitaine
    47
  64. 64PérigueuxNew Aquitaine
    45
  65. 64NiortNew Aquitaine
    45
  66. 66Saint-ÉtienneAuvergne-Rhône-Alpes
    44
  67. 66MarignaneProvence-Alpes-Côte d'Azur
    44
  68. 68BordeauxNew Aquitaine
    44
  69. 69NiceProvence-Alpes-Côte d'Azur
    43
  70. 70ManosqueProvence-Alpes-Côte d'Azur
    43
  71. 70AngoulêmeNew Aquitaine
    43
  72. 72AlbertvilleAuvergne-Rhône-Alpes
    42
  73. 73ToulouseOccitanie
    42
  74. 73LimogesNew Aquitaine
    42
  75. 73ChambéryAuvergne-Rhône-Alpes
    42
  76. 73CastresOccitanie
    42
  77. 73CannesProvence-Alpes-Côte d'Azur
    42
  78. 78MarseilleProvence-Alpes-Côte d'Azur
    40
  79. 79NîmesOccitanie
    39
  80. 80Clermont-FerrandAuvergne-Rhône-Alpes
    38
  81. 81Salon-de-ProvenceProvence-Alpes-Côte d'Azur
    37
  82. 82BastiaCorsica
    35
  83. 83RodezOccitanie
    34
  84. 84Aix-en-ProvenceProvence-Alpes-Côte d'Azur
    33
  85. 85LourdesOccitanie
    33
  86. 86AurillacAuvergne-Rhône-Alpes
    29
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

All cities in the world, March 2025 · France now

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SmogRank, most polluted cities in France, PM2.5, March 2025, smogrank.com/fr/history/2025-03 (accessed 2 Oct 2026).

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