Assessment of metal contamination, bioavailability, toxicity and bioaccumulation in extreme metallic environments (Iberian Pyrite Belt) using Corbicula fluminea

The Science of the Total Environment
E BonnailInmaculada Riba

Abstract

The Iberian Pyrite Belt (SW Iberian Peninsula) has intense mining activity. Currently, its fluvial networks receive extremely acid lixiviate residue discharges that are rich in sulphates and metals in solution (acid mine drainage, AMD) from abandoned mines. In the current study, the sediment and water quality were analysed in three different areas of the Odiel River to assess the risk associated with the metal content and its speciation and bioavailability. Furthermore, sediment contact bioassays were performed using the freshwater clam Corbicula fluminea to determine its adequacy as a biomonitoring tool in relation to theoretical risk indexes and regulatory thresholds. Reburial activity and mortality were used as the toxic responses of clams when exposed to contaminated sediment. The results showed coherence between the water and sediment chemical contamination for most of the metals. The reburial activity was correlated with the metal toxicity, but no clam mortality was registered. The bioaccumulation of the studied metals in the clam did not have a significant correlation with the bioavailable fraction of the metal content in the environment, which could be related to a potential different speciation in this singular environ...Continue Reading

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Citations

Apr 20, 2016·Archives of Environmental Contamination and Toxicology·Estefanía BonnailT Ángel DelValls
Jul 30, 2016·Ecotoxicology and Environmental Safety·Estefanía BonnailT Ángel DelValls
Sep 15, 2016·Environmental Monitoring and Assessment·Anabela LeitãoRui A R Boaventura
Oct 30, 2019·Biometrical Journal. Biometrische Zeitschrift·Marcelo BourguignonDiego I Gallardo
Mar 29, 2019·Environmental Science and Pollution Research International·Deliang LiTing Zhang
May 18, 2018·Environmental Science and Pollution Research International·Deliang LiDylan J Fraser
Jun 15, 2017·Environmental Geochemistry and Health·Estefanía BonnailT Ángel DelValls
May 4, 2017·Environmental Monitoring and Assessment·Estefanía BonnailT Ángel DelValls
Nov 10, 2020·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Akihide ItohYanbei Zhu
Jan 31, 2021·Environmental Monitoring and Assessment·Wellen Fernanda Louzada CasteloJosefa Varela Guerra
Dec 16, 2020·The Science of the Total Environment·Elias H TeramotoHung K Chang
Jan 6, 2021·Ecotoxicology and Environmental Safety·P B ReynaM L Ballesteros
Nov 24, 2021·Environmental Science and Pollution Research International·Yong Quan LiLan Wang

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