Following the Aznalcóllar toxic spill

Ten years after the Aznalcóllar mine spill, the decline in metal contamination in the area is evident. However, some elements are still found in elevated concentrations. In Scrobicularia plana, zinc, lead, and arsenic exceeded health advisory levels at several locations although there is no indication of risks associated with consumption of this mollusc. The estuary seems to have enhanced the bioavailability of arsenic and lead. Research should continue to understand the significance of this contamination. © 2011 Elsevier Inc.V. Tornero was supported by a I3P contract from the Plan Nacional de Investigación Científica, Desarrollo e Innovación Tecnológica (2000–2003). The study was supported as a part of the projects CTM2005-07282-C03-02/TECNO and Interreg IIIA REDCONTAMAR SP5 (SP3.E101/03).Peer Reviewe