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 |  Herstal | 82 |
| 2 | Saint-Nicolas | 80 |
| 3 | Baelen | 74 |
| 4 | Somme-Leuze | 73 |
| 5 | Liège | 71 |
| 6 | Andenne | 70 |
| 7 | Awans | 70 |
| 8 | Seraing | 66 |
| 9 | Chatelet | 65 |
| 10 | Viroinval | 65 |
(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 | Cerfontaine | 0 |
| 2 | Habay | 24 |
| 3 | Sainte-Ode | 24 |
| 4 | Vielsalm | 33 |
| 5 | Bertrix | 49 |
| 6 | La Hulpe | 53 |
| 7 | Namur | 56 |
| 8 | Rixensart | 56 |
| 9 | Tournai | 56 |
| 10 | Fleurus | 57 |
(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)
22 stations
3 Government Contributors
- AirGradient
1 station
Corporate Contributor
Which is the most polluted city in Wallonia?
- Saint-Nicolas 80
- Baelen 74
- Somme-Leuze 73
- Liège 71
- Andenne 70
- Awans 70
- Seraing 66
- Chatelet 65
- Viroinval 65
- Brunehault 64
- Courcelles 61
- Mons 59
- Charleroi 58
- Namur 56
- Rixensart 56
- Tournai 56
- Ambleve 54
- Anderlues 54
- Aubel 54
- Beaumont 54
- Bullange 54
- Butgenbach 54
- Chimay 54
- Jalhay 54
- La Calamine 54
- Limbourg 54
- Lobbes 54
- Lontzen 54
- Merbes-le-Chateau 54
- Momignies 54
- Philippeville 54
- Plombieres 54
- Raeren 54
- Thuin 54
- Waimes 54
- Walcourt 54
- Welkenraedt 54
- Aiseau 53
- Amay 53
- Anhee 53
- Ans 53
- Anthisnes 53
- Antoing 53
- Assesse 53
- Ath 53
- Aywaille 53
- Basse Lasne 53
- Bassenge 53
- Beauraing 53
- Beauvechain 53
- Beloeil 53
- Berloz 53
- Bernissart 53
- Beyne-Heusay 53
- Bievre 53
- Binche 53
- Blegny 53
- Bouillon 53
- Boussu 53
- Braine-l'Alleud 53
- Braine-le-Chateau 53
- Braine-le-Comte 53
- Braives 53
- Brugelette 53
- Burdinne 53
- Celles 53
- Chapelle-lez-Herlaimont 53
- Chasse Royale 53
- Chastre-Villeroux-Blanmont 53
- Chaudfontaine 53
- Chaumont-Gistoux 53
- Chievres 53
- Ciney 53
- Clavier 53
- Colfontaine 53
- Comblain-au-Pont 53
- Court-Saint-Etienne 53
- Arlon 52
- Attert 52
- Aubange 52
- Bastogne 52
- Bertogne 52
- Bertrix 49
- Cerfontaine
- Herstal 82
- Engis 60
- Fleurus 57
- Couvin 54
- Erquelinnes 54
- Eupen 54
- Florennes 54
- Froidchapelle 54
- Gerpinnes 54
- Crisnee 53
- Dalhem 53
- Daverdisse 53
- Dinant 53
- Dison 53
- Doische 53
- Donceel 53
- Dour 53
- Durbuy 53
- Ecaussinnes-d'Enghien 53
- Eghezee 53
- Ellezelles 53
- Enghien 53
- Erezee 53
- Esneux 53
- Estinnes-au-Val 53
- Faimes 53
- Farciennes 53
- Ferrieres 53
- Fexhe-le-Haut-Clocher 53
- Flemalle-Haute 53
- Fleron 53
- Flobecq 53
- Floreffe 53
- Forville 53
- Fosses-la-Ville 53
- Frameries 53
- Frasnes-lez-Buissenal 53
- Gedinne 53
- Geer 53
- Gembloux 53
- Genappe 53
- Gesves 53
- Gouvy 53
- Grez-Doiceau 53
- Hamoir 53
- Hamois 53
- Hannut 53
- Hastiere-Lavaux 53
- Havelange 53
- Hensies 53
- Heron 53
- Herve 53
- Hotton 53
- Houyet 53
- Huy 53
- Incourt 53
- Ittre 53
- Jodoigne 53
- Juprelle 53
- Jurbise 53
- La Bruyere 53
- La Hulpe 53
- La Louviere 53
- Lens 53
- Lessines 53
- Libin 53
- Lierneux 53
- Lincent 53
- Louvain-la-Neuve 53
- Malmedy 53
- Manage 53
- Manhay 53
- Marche-en-Famenne 53
- Marchin 53
- Mettet 53
- Modave 53
- Mons-lez-Liege 53
- Mont-Saint-Guibert 53
- Morlanwelz-Mariemont 53
- Nandrin 53
- Nassogne 53
- Nivelles 53
- Noville-les-Bois 53
- Ohey 53
- Olne 53
- Onhaye 53
- Oreye 53
- Ottignies 53
- Ouffet 53
- Oupeye 53
- Paliseul 53
- Pepinster 53
- Peruwelz 53
- Perwez 53
- Pont-a-Celles 53
- Profondeville 53
- Quaregnon 53
- Quevy-le-Petit 53
- Quievrain 53
- Ramillies 53
- Rebecq-Rognon 53
- Remicourt 53
- Rendeux 53
- Rochefort 53
- Roeulx 53
- Rumes 53
- Saint-Ghislain 53
- Saint-Vith 53
- Saint-Yvon 53
- Seneffe 53
- Silly 53
- Soignies 53
- Sombreffe 53
- Soumagne 53
- Spa 53
- Sprimont 53
- Stavelot 53
- Stoumont 53
- Tellin 53
- Theux 53
- Tinlot 53
- Trois-Ponts 53
- Trooz 53
- Tubize 53
- Verlaine 53
- Verviers 53
- Villers-la-Ville 53
- Villers-le-Bouillet 53
- Vise 53
- Walhain-Saint-Paul 53
- Wanze 53
- Waremme 53
- Wasseiges 53
- Waterloo 53
- Wavre 53
- Wellin 53
- Yvoir 53
- Chiny 52
- Estaimpuis 52
- Etalle 52
- Fauvillers 52
- Florenville 52
- Herbeumont 52
- Houffalize 52
- La Roche-en-Ardenne 52
- Leglise 52
- Martelange 52
- Meix-devant-Virton 52
- Messancy 52
- Mouscron 52
- Musson 52
- Neufchateau 52
- Pecq 52
- Rouvroy 52
- Saint-Hubert 52
- Saint-Leger 52
- Tenneville 52
- Tintigny 52
- Vaux-sur-Sure 52
- Virton 52
- Vielsalm 33
- Habay 24
- Sainte-Ode 24
AQI US, Metric