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Air quality services - Support
World's most polluted cities 2019 (PM2.5)
The most polluted cities according to data aggregated from over 60,000 data points.
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2019
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World air quality report
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2019 World air quality report
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PM2.5 Legend 
WHO target
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
Unit: µg/m³
| Rank | City | 2019 AVG | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | 2018 AVG | 2017 AVG |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  Saint-Denis, France | 16.3 | 19.3 | 26.3 | 17.3 | 18.4 | 16.2 | 15.1 | 14.1 | 13.2 | 11.5 | 13.1 | 14.1 | 17.5 | 17.6 | 19.5 |
| 2 | Paris, France | 14.7 | 16.9 | 23.4 | 15.4 | 17.2 | 13.3 | 12.3 | 12.3 | 10.9 | 9.6 | 12.7 | 13.9 | 17.5 | 15.6 | 15.4 |
| 3 | Roubaix, France | 14.2 | 16.9 | 21.2 | 16.4 | 24.4 | 16.8 | 10.9 | 9 | 10.3 | 7.2 | 9.2 | 12.5 | 12.4 | 14.9 | 14.9 |
| 4 | Seremange-Erzange, France | 14 | - | 30.7 | 15.9 | 22.3 | 12.5 | 12.3 | 12.1 | 6 | 1.9 | 1.9 | - | - | - | - |
| 5 | Strasbourg, France | 14 | 17.1 | 21.4 | 12.7 | 16.1 | 10.9 | 12.4 | 14.1 | 13.5 | 11 | 12.1 | 16.1 | 12.3 | 14.4 | 15.9 |
| 6 | Melun, France | 13.6 | 16.3 | 21.8 | 14.7 | 15.6 | 12.7 | 10.6 | 10.6 | 8.9 | 9.3 | 12.4 | 13.5 | 17 | 14.1 | 12.9 |
| 7 | La Mulatiere, France | 12.8 | 13.6 | 22.6 | 11 | 11.3 | 8.2 | 10.7 | 10.9 | 8.5 | 7.1 | 11.5 | 16.1 | 23.4 | 14.1 | 15.1 |
| 8 | Rouen, France | 12.5 | 12.1 | 19.8 | 12.5 | 17.5 | 14.2 | 9.8 | 10.2 | 9.7 | 8.9 | 10.1 | 10.6 | 15.7 | 12.6 | 10.7 |
| 9 | Douai, France | 12.3 | - | 38.4 | 15.1 | 23.1 | 15.4 | 12 | 6.8 | 8.1 | 4.6 | 8.6 | 10 | 15.1 | 15 | 13.5 |
| 10 | Saint-Quentin, France | 12.2 | - | 28.1 | 14.3 | 19.6 | 15.1 | 11.3 | 11.3 | 9 | 7.4 | 9.4 | 10.5 | 17.6 | 14.3 | 13.4 |
| 11 | Gennevilliers, France | 11.9 | 14 | 23.6 | 14.4 | 15.8 | 12.4 | 10.1 | 10.3 | 8.4 | 6.7 | 7.3 | 8.2 | 11.7 | 13 | 12.7 |
| 12 | Lille, France | 11.8 | - | 27 | 14.3 | 21.5 | 14.5 | 9.7 | 7.7 | 9.2 | 5.7 | 8.6 | 11.4 | 15.3 | 14.3 | 14.2 |
| 13 | Toulon, France | 11.8 | 12.1 | 22.7 | 11.2 | 9.3 | 9.2 | 13.1 | 12.7 | 11.1 | 10.7 | 11.1 | 8.5 | 11.9 | 11.9 | 12.4 |
| 14 | Mulhouse, France | 11.7 | 16.4 | 18.8 | 13.4 | 15.1 | 9.8 | 10.7 | 10.9 | 8.9 | 6.8 | 7.8 | 12.8 | 14.6 | 13 | 14.2 |
| 15 | Forbach, France | 11.6 | 17.5 | 20.4 | 11.6 | 13.8 | 9.6 | 8 | 9.9 | 9.3 | 6.9 | 7.9 | 11.4 | 21.5 | 12.2 | 11.5 |
| 16 | Malo-les-Bains, France | 11.6 | - | 45.3 | 15.7 | 23.1 | 10.5 | 6.2 | 6.7 | 11.2 | 4.8 | 7.2 | 10.3 | 16.5 | - | - |
| 17 | Lyon, France | 11.4 | 14.2 | 25.4 | 11.6 | 10.9 | 6.9 | 8.1 | 9.2 | 8 | 6.2 | 8.4 | 12 | 18.7 | 11.7 | 15 |
| 18 | Bethune, France | 11.4 | - | 9.9 | 13.9 | 23.7 | 12.8 | 8.8 | 6.8 | 8.9 | 5.4 | 8.1 | 10.4 | 18.2 | 13.9 | 13.4 |
| 19 | Boulogne-sur-Mer, France | 11.4 | - | 45.3 | 14.8 | 22.4 | 13.8 | 9 | 7.4 | 9 | 5 | 7.7 | 8.2 | 14.8 | - | - |
| 20 | Valenciennes, France | 11.3 | - | 36.3 | 9.9 | 22.6 | 12.7 | 8.5 | 9 | 9 | 6.5 | 9.4 | 12.2 | 20.5 | 15.3 | 15.1 |
| 21 | Reims, France | 11.2 | 16.4 | 19.1 | 18.2 | 16.5 | 9.8 | 7.5 | 8.5 | 7.9 | 7 | 8.4 | 11.1 | 13.6 | 13.1 | 13.3 |
| 22 | Dieppe, France | 11.2 | 9.8 | 17.8 | 12.7 | 20.1 | 13.3 | 8.6 | 8.5 | 8.1 | 6.1 | 7.7 | 9.4 | 12.5 | 12.4 | - |
| 23 | Gardanne, France | 11.2 | 13.7 | 21.9 | 10.6 | 9.2 | 8.4 | 10.1 | 12 | 10.5 | 9 | 9.2 | 9.1 | 13.7 | 12.1 | 12.2 |
| 24 | Tours, France | 11.1 | 16.7 | 22.4 | 13.1 | 13.2 | 9.5 | 9.5 | 9.2 | 7.9 | 6.7 | 8 | 8.8 | 11.5 | - | - |
| 25 | Amiens, France | 11.1 | - | 30.5 | 14.1 | 20.5 | 10.4 | 7.8 | 7.6 | 7.1 | 6.4 | 8.3 | 10.3 | 13.9 | - | - |
| 26 | Gonesse, France | 11.1 | 16.2 | 19.6 | 12.3 | 14.8 | 10.7 | 9.1 | 8.9 | 8.1 | 6.7 | 7.8 | 9.3 | 11.8 | 12.4 | 12 |
| 27 | Nice, France | 11.1 | 12.5 | 14.5 | 11.7 | 10.5 | 9.4 | 14.5 | 13.6 | 11.3 | 8.1 | 9.9 | 7.3 | 10.5 | 12.5 | 13.9 |
| 28 | Belleville-sur-Meuse, France | 11 | 19.1 | 21.9 | 16.4 | 15.7 | 8.6 | 6.9 | 7.3 | 6.4 | 5.1 | 7.9 | 13.8 | 11.6 | - | - |
| 29 | Avignon, France | 11 | 10.4 | 21.6 | 9.2 | 9.4 | 7.8 | 8.7 | 11.7 | 10.3 | 7.8 | 10 | 10.8 | 14.4 | 11.8 | 12.7 |
| 30 | Port-de-Bouc, France | 11 | 11 | 19.9 | 12.6 | 10.4 | 8.4 | 9.2 | 10.4 | 9.8 | 8.9 | 9.3 | 10 | 13.6 | 11.6 | 12.2 |
| 31 | Valence, France | 10.9 | 11.5 | 22.1 | 11.4 | 10 | 6.8 | 8.5 | 9.9 | 7.4 | 7.1 | 8.5 | 12.2 | 16.4 | 11.2 | - |
| 32 | Montbeliard, France | 10.9 | 16.9 | 21.4 | 11.4 | 12.2 | 7.4 | 8.2 | 8.3 | 6.2 | 5.4 | 8.2 | 12.7 | 13.8 | 11.3 | 11.1 |
| 33 | Calais, France | 10.9 | - | 37.9 | 12.9 | 24.2 | 10.7 | 7.8 | 6.3 | 11.2 | 4.5 | 6.9 | 8.9 | 13.6 | 10.4 | 10.3 |
| 34 | Chatou, France | 10.9 | - | 29.7 | 12.5 | 20.7 | 10.3 | 9.6 | 7.2 | 6.6 | 4.2 | 7.1 | 11.3 | 15.5 | - | - |
| 35 | Vitry-Sur-Seine, France | 10.9 | 14.9 | 18.8 | 11.8 | 14.6 | 10.1 | 8.8 | 7.9 | 7.4 | 6.2 | 7.7 | 9.6 | 13.8 | 13.4 | 11.8 |
| 36 | Gap, France | 10.7 | 16.2 | 14.6 | 9.3 | 9.6 | 6.7 | 10.5 | 10.6 | 9.2 | 7.9 | 9.1 | 12.1 | 13.8 | 11.7 | 11.7 |
| 37 | Marseille, France | 10.7 | 9.9 | 19.8 | 9.8 | 9.2 | 7.8 | 10.6 | 12.5 | 10.9 | 9.1 | 9.7 | 8 | 11.4 | 12.4 | 14.6 |
| 38 | Vaulx-en-Velin, France | 10.6 | 13.9 | 27 | 11.3 | 10.8 | 6.1 | 7.2 | 8.2 | 7.2 | 5.3 | 7.2 | 10.8 | 16 | 10.8 | 11.4 |
| 39 | Lunéville, France | 10.5 | 14.3 | 18.8 | 10.9 | 12.6 | 8.8 | 8.8 | 10.2 | 8.2 | 6.1 | 7.8 | 12 | 13 | 12.2 | 12.1 |
| 40 | Metz, France | 10.5 | 22.7 | 17.7 | 18.8 | 14.3 | 9.7 | 8.5 | 8.6 | 7.7 | 5.9 | 6.6 | 12.3 | 11.1 | 12.5 | 10.4 |
| 41 | Joue-Les-Tours, France | 10.4 | 14.2 | 19.7 | 12.9 | 13.2 | 9.3 | 8.7 | 8.8 | 7.3 | 6.2 | 6.8 | 7.9 | 10.9 | 10.3 | 12.2 |
| 42 | Grenoble, France | 10.1 | 13.9 | 17.3 | 9.7 | 8.6 | 5.9 | 9.6 | 10.3 | 8.7 | 7.6 | 8.2 | 11.1 | 13.3 | 11.3 | 13.1 |
| 43 | Chalon-sur-Saone, France | 10.1 | 13.5 | 22.5 | 11.7 | 11.4 | 6.7 | 7.8 | 7.5 | 6.5 | 5 | 6.8 | 9.2 | 10.6 | 11.1 | 10.6 |
| 44 | Creil, France | 10.1 | - | 38.1 | 13.6 | 16.9 | 13.6 | 7.9 | 7.4 | 6.6 | 5.4 | 6.8 | 8.3 | 14.3 | 12.5 | 12 |
| 45 | Aix-en-Provence, France | 10.1 | 12.5 | 18.3 | 9.1 | 9 | 7.9 | 8.6 | 10.3 | 9 | 8.3 | 9.4 | 9.7 | 11.6 | 11.8 | 12.8 |
| 46 | Passy, France | 10 | 13 | 21.2 | 9 | 9.2 | 5.3 | 7.5 | 7.4 | 6.1 | 5.8 | 6.4 | 13.9 | 15.2 | 11.1 | 17.1 |
| 47 | Salaise-sur-Sanne, France | 10 | 10.7 | 22 | 10.6 | 9.4 | 6.3 | 8.4 | 8.7 | 7.2 | 6.1 | 6.8 | 11.1 | 29.5 | 14.7 | 13 |
| 48 | Bobigny, France | 10 | 13.3 | 19.9 | 12.4 | 12.3 | 9.6 | 7.2 | 7.5 | 7 | 6.3 | 7.5 | 8.5 | 11 | 11.2 | 11.2 |
| 49 | Moult, France | 10 | 11.7 | 19.7 | 12.9 | 16 | 11.1 | 8.6 | 8.1 | 7.2 | 6.1 | 6.1 | 7.9 | 8.8 | 10.2 | 11 |
| 50 | Nantes, France | 10 | 11.4 | 16.7 | 11 | 12.2 | 9 | 8.2 | 8.3 | 8.3 | 6.6 | 8 | 9.6 | 11.1 | 10.1 | 11.4 |
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