Remobilisation of Zn and Pb in a mountain stream contaminated by mining wastes during a moderate flood event (Ariège, France)

Célia Brunel (1, 2) , Marguerite Munoz (2) , Anne Probst (2)

1 INERIS - Institut National de l'Environnement Industriel et des Risques
2 GET - Géosciences Environnement Toulouse

The Lez stream drains an orphan mining (Zn and Pb) district, whose tailings are sources of contamination. The evolution of the dissolved and particular Zn and Ph content was studied to evaluate the role of a moderate flood event on the downstream metal tranfert. Although Zn and Pb behave differently, floods appear for both elements as preferential periods for metal fluxes.

Domains: Environmental Sciences

Célia Brunel, Marguerite Munoz, Anne Probst. Remobilisation of Zn and Pb in a mountain stream contaminated by mining wastes during a moderate flood event (Ariège, France). Journal de Physique IV Proceedings, 2003, 107, pp.233-236. ⟨10.1051/jp4:20030285⟩. ⟨ineris-00963579⟩