Assessment of fluxes of priority pollutants in stormwater discharges in two urban catchments in Lyon, France

C. Becouze (1) , Jean-Luc Bertrand-Krajewski (1) , Marina Coquery (2) , A. Dembélé (1) , C. Cren Olivé (3)

1 DEEP - Déchets Eaux Environnement Pollutions
2 UR QELY - Qualité des eaux et prévention des pollutions
3 SCA - Service Central d'Analyse

The objectives of the ESPRIT collaborative project are to identify, evaluate, characterise and later on model the fluxes of priority substances in urban stormwater, for both combined and separate sewer systems. This paper presents i) the methodology applied to collect representative samples of dry atmospheric deposits, of rainwater and of stormwater discharges at the outlet of experimental catchments, ii) the EMC (Event Mean Concentrations) values and the fluxes of 36 organic substances and of 26 metals calculated for various storm events, and iii) the discussion of these results.Since the beginning of 2008, 19 campaigns have been carried at the outlet of both sites, plus 12 campaigns of atmospheric deposits and 20 campaigns of rainwater. 8 organic pollutants in the dissolved phase and almost all metals in both dissolved and particulate phases are detected.

Mots clés: REJETS PAR TEMPS DE PLUIE; DÉPÔT ATMOSPHÉRIQUE; DIRECTIVE CADRE EUROPEENNE SUR L'EAU; REJET EN COURS D'EAU; EAU USEE; PLUIE; ZONE URBAINE; SUBSTANCE PRIORITAIRE; LYON

Domaines: Sciences de l'environnement

C. Becouze, Jean-Luc Bertrand-Krajewski, Marina Coquery, A. Dembélé, C. Cren Olivé. Assessment of fluxes of priority pollutants in stormwater discharges in two urban catchments in Lyon, France. European Geosciences Union, EGU General Assembly 2009, Apr 2009, Vienne, Austria. 1 p. ⟨hal-00508421⟩