The use of sediment cores from stable and developing salt marshes to reconstruct historical contamination profiles in the Mersey Estuary, UK

arsenic arsenico caesium cesio cesium cinc cobre copper cuivre ddt estuaire estuaries estuarios heavy metals insecticidas insecticide insecticides lead marismas saladas mercure mercurio mercury metales pesados plomb plomo pollution residues residuos saltmarshes sediment sedimento zinc