Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Wallonia
Air quality index (AQI) and PM2.5 air pollution in Wallonia
LIVE AQI CITY RANKING
Real-time Wallonia
Most polluted city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mons | 101 |
| 2 | La Hulpe | 88 |
| 3 | Cerfontaine | 86 |
| 4 | Fleurus | 82 |
| 5 | Rixensart | 81 |
| 6 | Herstal | 72 |
| 7 | Tournai | 72 |
| 8 | Awans | 71 |
| 9 | Brunehault | 70 |
| 10 | Courcelles | 70 |
(local time)
SEE WORLD AQI RANKINGAIR QUALITY DATA CONTRIBUTORS
6 Contributors
See all
LIVE AQI CITY RANKING
Real-time Wallonia
Cleanest city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Bertrix | 21 |
| 2 | Somme-Leuze | 22 |
| 3 | Sainte-Ode | 24 |
| 4 | Habay | 25 |
| 5 | Vielsalm | 26 |
| 6 | Liège | 36 |
| 7 | Viroinval | 36 |
| 8 | Baelen | 44 |
| 9 | Seraing | 52 |
| 10 | Engis | 56 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
Good
Moderate
Unhealthy for sensitive groups
Unhealthy
Very unhealthy
Hazardous
News
The latest air quality news and resources.
Wallonia air quality data attribution
6Contributors
- Wallon Air and Climate Agency (AWAC)
23 stations
3 Government Contributors
- AirGradient
1 station
Corporate Contributor
Which is the most polluted city in Wallonia?
- Mons 101
- La Hulpe 88
- Cerfontaine 86
- Fleurus 82
- Rixensart 81
- Herstal 72
- Tournai 72
- Awans 71
- Brunehault 70
- Courcelles 70
- Namur 70
- Andenne 68
- Chatelet 67
- Saint-Nicolas 67
- Charleroi 66
- Basse Lasne 60
- Beauvechain 60
- Chastre-Villeroux-Blanmont 60
- Chaumont-Gistoux 60
- Court-Saint-Etienne 60
- Genappe 60
- Grez-Doiceau 60
- Louvain-la-Neuve 60
- Mont-Saint-Guibert 60
- Ottignies 60
- Walhain-Saint-Paul 60
- Waterloo 60
- Wavre 60
- Aiseau 59
- Anderlues 59
- Beaumont 59
- Binche 59
- Braine-l'Alleud 59
- Braine-le-Chateau 59
- Braine-le-Comte 59
- Brugelette 59
- Chapelle-lez-Herlaimont 59
- Chasse Royale 59
- Colfontaine 59
- Ecaussinnes-d'Enghien 59
- Eghezee 59
- Enghien 59
- Erquelinnes 59
- Estinnes-au-Val 59
- Farciennes 59
- Floreffe 59
- Florennes 59
- Fosses-la-Ville 59
- Frameries 59
- Gembloux 59
- Gerpinnes 59
- Incourt 59
- Ittre 59
- Jodoigne 59
- Jurbise 59
- La Bruyere 59
- La Louviere 59
- Lens 59
- Lincent 59
- Lobbes 59
- Manage 59
- Merbes-le-Chateau 59
- Mettet 59
- Morlanwelz-Mariemont 59
- Nivelles 59
- Perwez 59
- Pont-a-Celles 59
- Quaregnon 59
- Quevy-le-Petit 59
- Ramillies 59
- Rebecq-Rognon 59
- Roeulx 59
- Seneffe 59
- Silly 59
- Soignies 59
- Sombreffe 59
- Thuin 59
- Tubize 59
- Villers-la-Ville 59
- Walcourt 59
- Wasseiges 59
- Anhee 58
- Antoing 58
- Ath 58
- Beloeil 58
- Berloz 58
- Bernissart 58
- Boussu 58
- Braives 58
- Burdinne 58
- Chievres 58
- Chimay 58
- Couvin 58
- Dinant 58
- Doische 58
- Dour 58
- Ellezelles 58
- Flobecq 58
- Forville 58
- Frasnes-lez-Buissenal 58
- Froidchapelle 58
- Geer 58
- Hannut 58
- Hastiere-Lavaux 58
- Hensies 58
- Heron 58
- Lessines 58
- Momignies 58
- Noville-les-Bois 58
- Onhaye 58
- Peruwelz 58
- Philippeville 58
- Profondeville 58
- Quievrain 58
- Rumes 58
- Saint-Ghislain 58
- Yvoir 58
- Amay 57
- Assesse 57
- Beauraing 57
- Celles 57
- Ciney 57
- Crisnee 57
- Donceel 57
- Estaimpuis 57
- Faimes 57
- Fexhe-le-Haut-Clocher 57
- Gesves 57
- Hamois 57
- Houyet 57
- Huy 57
- Marchin 57
- Mouscron 57
- Ohey 57
- Oreye 57
- Pecq 57
- Remicourt 57
- Saint-Yvon 57
- Verlaine 57
- Villers-le-Bouillet 57
- Wanze 57
- Waremme 57
- Ans 56
- Bassenge 56
- Bievre 56
- Clavier 56
- Dalhem 56
- Daverdisse 56
- Engis 56
- Gedinne 56
- Havelange 56
- Juprelle 56
- Modave 56
- Mons-lez-Liege 56
- Nandrin 56
- Oupeye 56
- Rochefort 56
- Tinlot 56
- Vise 56
- Wellin 56
- Anthisnes 55
- Aubel 55
- Aywaille 55
- Beyne-Heusay 55
- Blegny 55
- Bouillon 55
- Chaudfontaine 55
- Comblain-au-Pont 55
- Dison 55
- Durbuy 55
- Erezee 55
- Esneux 55
- Eupen 55
- Ferrieres 55
- Fleron 55
- Hamoir 55
- Herve 55
- Hotton 55
- Jalhay 55
- La Calamine 55
- La Roche-en-Ardenne 55
- Libin 55
- Limbourg 55
- Lontzen 55
- Marche-en-Famenne 55
- Nassogne 55
- Olne 55
- Ouffet 55
- Paliseul 55
- Pepinster 55
- Plombieres 55
- Raeren 55
- Rendeux 55
- Saint-Hubert 55
- Soumagne 55
- Spa 55
- Sprimont 55
- Tellin 55
- Tenneville 55
- Theux 55
- Trooz 55
- Verviers 55
- Welkenraedt 55
- Ambleve 54
- Bastogne 54
- Bertogne 54
- Bullange 54
- Butgenbach 54
- Chiny 54
- Fauvillers 54
- Florenville 54
- Gouvy 54
- Herbeumont 54
- Houffalize 54
- Leglise 54
- Lierneux 54
- Malmedy 54
- Manhay 54
- Martelange 54
- Neufchateau 54
- Saint-Vith 54
- Stavelot 54
- Stoumont 54
- Trois-Ponts 54
- Vaux-sur-Sure 54
- Waimes 54
- Attert 53
- Etalle 53
- Flemalle-Haute 53
- Tintigny 53
- Arlon 52
- Meix-devant-Virton 52
- Messancy 52
- Musson 52
- Rouvroy 52
- Saint-Leger 52
- Seraing 52
- Virton 52
- Aubange 51
- Baelen 44
- Liège 36
- Viroinval 36
- Vielsalm 26
- Habay 25
- Sainte-Ode 24
- Somme-Leuze 22
- Bertrix 21
AQI US, Metric