Assessment of trace metal bioaccumulation in Mytilus galloprovincialis of the central Atlantic ocean after installation of treatment sewage facilities.

Autor: El Mourabit Y; Aquatic Systems: Marine and Continental Ecosystems Lab, University of Ibn Zohr, Agadir, Morocco. Electronic address: youssef.elmourabit@edu.uiz.ac.ma., Hasni M; Aquatic Systems: Marine and Continental Ecosystems Lab, University of Ibn Zohr, Agadir, Morocco., Agnaou M; Faculty of Applied Sciences, Ait Melloul, University of Ibn Zohr, Morocco., Nadir M; Faculty of Applied Sciences, Ait Melloul, University of Ibn Zohr, Morocco., Abou Oualid J; Aquatic Systems: Marine and Continental Ecosystems Lab, University of Ibn Zohr, Agadir, Morocco., Moukrim A; Hassan 1st University, Settat, Morocco., Ait Alla A; Aquatic Systems: Marine and Continental Ecosystems Lab, University of Ibn Zohr, Agadir, Morocco.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2024 Jan; Vol. 348, pp. 140730. Date of Electronic Publication: 2023 Nov 20.
DOI: 10.1016/j.chemosphere.2023.140730
Abstrakt: Mussels (Mytilus galloprovincialis) are vital to Morocco's artisanal fishermen both nutritionally and economically. This study probed the bioaccumulation of trace metals zinc (Zn), cadmium (Cd), copper (Cu), and lead (Pb) in mussels from three sites north of Agadir: Anza, Aourir, and Imouran. Analyzed using atomic absorption techniques across different seasons, findings indicated variable metal concentrations, with Imouran notably presenting the highest, potentially due to influences from the new wastewater plants of Anza and Aourir. While lead was not detected, cadmium, albeit in lower concentrations, posed potential health concerns upon regular consumption. Individual Mean Bioaccumulation Index (IMBI) demonstrated fluctuations, majorly influenced by Zn, Cd, and Cu levels. These trends in IMBI between 2017 and 2018 for Aourir and Imouran hinted at similar environmental impacts or exposure levels. Despite site differences, Metal Pollution Index (MPI) values consistently pointing to analogous potential toxicity due to metal combinations. Intricate relationships between trace metals and their environmental parameters were evident, with multiple linear regression analysis (MLRA) showcasing differing correlations between variables. These results highlight the nuanced interactions between trace metals and bioaccumulation indices, such as MPI and IMBI. In conclusion, the findings accentuate the imperative of regular coastal water quality checks and effective management strategies to curtail pollutant discharges.
Competing Interests: Declaration of competing interest The authors affirm that they have no identifiable financial conflicts or personal associations that might have seemed to impact the findings presented in this paper.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
Externí odkaz: