| Station | Moyenne horaire (µg/m3) | à | Maximum journalier (µg/m3) | à |
|---|---|---|---|---|
| Arts-Loi | 8,0 | 4h | 16,0 | 2h |
| Sainte-Catherine | 6,0 | 4h | 6,0 | 3h |
| Parlement européen | 1,0 | 4h | 1,0 | 4h |
| Belliard | 1,0 | 4h | 2,0 | 1h |
| Berchem-Sainte-Agathe | 3,0 | 4h | 3,0 | 4h |
| Forest (Electrabel) | 3,0 | 8h | 3,0 | 8h |
| Neder-Over-Heembeek | 5,0 | 4h | 5,0 | 4h |
| Avant-port (Haren) | 6,0 | 4h | 6,0 | 4h |
| Molenbeek-Saint-Jean | 3,0 | 4h | 3,0 | 4h |
| Ixelles | 3,0 | 4h | 5,0 | 1h |
| Uccle | 3,0 | 4h | 3,0 | 4h |
| Woluwe-Saint-Lambert | 3,0 | 4h | 3,0 | 4h |
Le trait rose indique la concentration horaire maximale pour la journée.