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Title: Can water remediated by manganese spinel ferrite nanoparticles be safe for marine bivalves?
Author: Coppola, Francesca
Tavares, Daniela S.
Henriques, Bruno
Monteiro, Rui
Trindade, Tito
Figueira, Etelvina
Soares, Amadeu M. V. M.
Pereira, Eduarda
Freitas, Rosa
Keywords: Toxicity
Mytilus galloprovincialis
Mn nanoparticles
Lead contamination
Issue Date: 25-Jun-2020
Publisher: Elsevier
Abstract: In the last few years the use of nanoparticles (NPs) such as the manganese spinel ferrite (MnFe2O4) has been increasing, with a vast variety of applications including water remediation from pollutants as metal(oid)s. Although an increasing number of studies already demonstrated the potential toxicity of NPs towards aquatic systems and inhabiting organisms, there is still scarce information on the potential hazard of the remediated water using NPs. The present study aimed to evaluate the ecotoxicological safety of Pb contaminated seawater remediated with MnFe2O4, NPs, assessing the toxicity induced in mussels Mytilus galloprovincialis exposed to contaminated seawater and to water that was remediated using MnFe2O4, NPs. The results obtained demonstrated that seawater contaminated with Pb, NPs or the mixture of both (Pb + NPs) induced higher toxicity in mussels compared to organisms exposed to Pb, NPs and Pb + NPs after the remediation process. In particular, higher metabolic depression, oxidative stress and neurotoxicity were observed in mussels exposed to contaminated seawater in comparison to mussels exposed to remediated seawater.
Peer review: yes
DOI: 10.1016/j.scitotenv.2020.137798
ISSN: 0048-9697
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