Influence of the Gironde estuary outputs on cadmium concentrations in the waters: consequences on the Marennes-Oléron bay (France)

摘要: The Gironde, an estuary in Southwestern France, has been highly contaminated by cadmium for many years, and the results of French mussel watch suggest that this contamination is not restricted to estuary, but could be responsible relatively high levels Cd oysters from Marennes-Oleron bay located nearby. This hypothesis evaluated through three cruises carried out Gironde plume, bay, Charente a river minor importance influences directly bay. field Pertuis cruise (May 1991) two others conducted January December same year show important source dissolved bordering continental shelf (11 t year–1), while inputs are far lower (60 kg year–1). Dissolved concentrations on vary according salinity, ranging 0.76 nmol L–1 close 0.15 shore. data as well simulations 3D hydrodynamic model plume reaches Antioche Straits north diluted marine waters strongly influenced Gironde. study confirms