Metals in the Scheldt estuary: From environmental concentrations to bioaccumulation

Environmental Pollution
Evy Van AelLieven Bervoets

Abstract

To investigate the relationship between metal concentrations in abiotic compartments and in aquatic species, sediment, suspended matter and several aquatic species (Polychaeta, Oligochaeta, four crustacean species, three mollusc species and eight fish species) were collected during three seasons at six locations along the Scheldt estuary (the Netherlands-Belgium) and analysed on their metal content (Ag, Cd, Co, Cr, Cu, Ni, Pb, Zn and the metalloid As). Sediment and biota tissue concentrations were significantly influenced by sampling location, but not by season. Measurements of Acid Volatile Sulphides (AVS) concentrations in relation to Simultaneously Extracted Metals (SEM) in the sediment suggested that not all metals in the sediment will be bound to sulphides and some metals might be bioavailable. For all metals but zinc, highest concentrations were measured in invertebrate species; Ag and Ni in periwinkle, Cr, Co and Pb in Oligochaete worms and As, Cd and Cu in crabs and shrimp. Highest concentrations of Zn were measured in the kidney of European smelt. In fish, for most of the metals, the concentrations were highest in liver or kidney and lowest in muscle. For Zn however, highest concentrations were measured in the kidney o...Continue Reading

Citations

Aug 20, 2018·Environmental Monitoring and Assessment·Noelia S La CollaJorge E Marcovecchio
Feb 15, 2021·Environmental Science and Pollution Research International·Asmat Saleem Siddiqui, Noor Us Saher
Dec 2, 2020·The Science of the Total Environment·Camille GaulierGabriel Billon
Apr 1, 2021·Biological Trace Element Research·Paloma de Almeida RodriguesCarlos Adam Conte-Junior

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