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
    21.5
  2. 2DouaiHauts-de-France
    18.6
  3. 3ValenciennesHauts-de-France
    17.7
  4. 4ReimsGrand Est
    17.4
  5. 5StrasbourgGrand Est
    17.3
  6. 6DenainHauts-de-France
    17.2
  7. 7NancyGrand Est
    16.8
  8. 8CreilHauts-de-France
    16.5
  9. 9Le HavreNormandy
    16.3
  10. 9AmiensHauts-de-France
    16.3
  11. 11MontbéliardBourgogne-Franche-Comté
    16.0
  12. 12CoulommiersÎle-de-France
    15.8
  13. 13RouenNormandy
    15.7
  14. 14Saint-QuentinHauts-de-France
    15.5
  15. 15MulhouseGrand Est
    15.3
  16. 16ParisÎle-de-France
    14.8
  17. 17DieppeNormandy
    14.2
  18. 18LouviersNormandy
    14.1
  19. 19ThionvilleGrand Est
    14.0
  20. 20OrléansCentre-Val de Loire
    13.9
  21. 20CherbourgNormandy
    13.9
  22. 22ÉpinalGrand Est
    13.7
  23. 23ÉvreuxNormandy
    13.5
  24. 24RambouilletÎle-de-France
    13.4
  25. 25Saint-DizierGrand Est
    13.3
  26. 25MetzGrand Est
    13.3
  27. 27OlivetCentre-Val de Loire
    13.2
  28. 28Saint-AvoldGrand Est
    13.1
  29. 28RennesBrittany
    13.1
  30. 28CaenNormandy
    13.1
  31. 31ChartresCentre-Val de Loire
    12.9
  32. 32DreuxCentre-Val de Loire
    12.5
  33. 33AuxerreBourgogne-Franche-Comté
    12.4
  34. 33AlençonNormandy
    12.4
  35. 35MontargisCentre-Val de Loire
    12.2
  36. 36DomontÎle-de-France
    11.8
  37. 37ÉtampesÎle-de-France
    11.7
  38. 37ChâteaurouxCentre-Val de Loire
    11.7
  39. 39BloisCentre-Val de Loire
    11.5
  40. 40VannesBrittany
    11.3
  41. 40PoitiersNew Aquitaine
    11.3
  42. 40BrestBrittany
    11.3
  43. 43LorientBrittany
    11.2
  44. 43FontainebleauÎle-de-France
    11.2
  45. 43DoleBourgogne-Franche-Comté
    11.2
  46. 46Romans-sur-IsèreAuvergne-Rhône-Alpes
    11.0
  47. 47BourgesCentre-Val de Loire
    10.8
  48. 48Joué-lès-ToursCentre-Val de Loire
    10.5
  49. 49AnnemasseAuvergne-Rhône-Alpes
    10.4
  50. 50ToursCentre-Val de Loire
    10.3
  51. 51QuimperBrittany
    10.1
  52. 52GrenobleAuvergne-Rhône-Alpes
    9.5
  53. 53MoulinsAuvergne-Rhône-Alpes
    9.4
  54. 54ArlesProvence-Alpes-Côte d'Azur
    9.3
  55. 55MeylanAuvergne-Rhône-Alpes
    9.1
  56. 56Villefranche-sur-SaôneAuvergne-Rhône-Alpes
    9.0
  57. 56ValenceAuvergne-Rhône-Alpes
    9.0
  58. 56LyonAuvergne-Rhône-Alpes
    9.0
  59. 59AvignonProvence-Alpes-Côte d'Azur
    8.9
  60. 60VillefontaineAuvergne-Rhône-Alpes
    8.8
  61. 61VichyAuvergne-Rhône-Alpes
    8.6
  62. 61MontluçonAuvergne-Rhône-Alpes
    8.6
  63. 63LormontNew Aquitaine
    8.5
  64. 64PérigueuxNew Aquitaine
    8.1
  65. 64NiortNew Aquitaine
    8.1
  66. 66Saint-ÉtienneAuvergne-Rhône-Alpes
    8.0
  67. 66MarignaneProvence-Alpes-Côte d'Azur
    8.0
  68. 68BordeauxNew Aquitaine
    7.9
  69. 69NiceProvence-Alpes-Côte d'Azur
    7.8
  70. 70ManosqueProvence-Alpes-Côte d'Azur
    7.7
  71. 70AngoulêmeNew Aquitaine
    7.7
  72. 72AlbertvilleAuvergne-Rhône-Alpes
    7.6
  73. 73ToulouseOccitanie
    7.5
  74. 73LimogesNew Aquitaine
    7.5
  75. 73ChambéryAuvergne-Rhône-Alpes
    7.5
  76. 73CastresOccitanie
    7.5
  77. 73CannesProvence-Alpes-Côte d'Azur
    7.5
  78. 78MarseilleProvence-Alpes-Côte d'Azur
    7.2
  79. 79NîmesOccitanie
    7.1
  80. 80Clermont-FerrandAuvergne-Rhône-Alpes
    6.9
  81. 81Salon-de-ProvenceProvence-Alpes-Côte d'Azur
    6.6
  82. 82BastiaCorsica
    6.3
  83. 83RodezOccitanie
    6.1
  84. 84Aix-en-ProvenceProvence-Alpes-Côte d'Azur
    6.0
  85. 85LourdesOccitanie
    5.9
  86. 86AurillacAuvergne-Rhône-Alpes
    5.2
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. 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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