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Abundance, composition, and distribution of microplastics in intertidal sediment and soft tissues of four species of Bivalvia from Southeast Brazilian urban beaches.

Authors
  • Costa, Mercia Barcellos da1
  • Otegui, Mariana Beatriz Paz2
  • Zamprogno, Gabriela Carvalho2
  • Caniçali, Felipe Barcellos3
  • Dos Reis Cozer, Caroline3
  • Pelletier, Emilien4
  • Graceli, Jones Bernardes5
  • 1 Chemistry Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitória, 29075-910, ES, Brazil. Electronic address: [email protected] , (Brazil)
  • 2 Biological Sciences Department, Federal University of Espírito Santo, Av. Fernando Ferrari, 514, Vitória, Espírito Santo 29075-910, Brazil. , (Brazil)
  • 3 Oceanology Post-Graduate Program, Federal University of Rio Grande, RS, Brazil. , (Brazil)
  • 4 Institut des Sciences de la mer à Rimouski, UQAR, 310, Allée des Ursulines, Rimouski, QC, Canada. , (Canada)
  • 5 Morphology Department, Federal University of Espírito Santo, Av. Marechal Campos, 1468, Vitória, Espírito Santo 290440-090, Brazil. , (Brazil)
Type
Published Article
Journal
The Science of the total environment
Publication Date
Jan 20, 2023
Volume
857
Issue
Pt 3
Pages
159352–159352
Identifiers
DOI: 10.1016/j.scitotenv.2022.159352
PMID: 36257412
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

In coastal areas, microplastics (MPs) can deposit in sediment, allowing it to be ingested by benthic organisms, like mussels, thus creating a possible transfer to humans. The aim of this study is to evaluate MPs pollution in sediment as a function of shoreline elevation in two urbanized beaches and to evaluate the abundance/frequency of MPs in 4 different species of bivalves commonly used in the human diet, such as the oyster Crassostrea brasiliana, the mussels Mytella strigata and Perna perna and the clam Tivela mactroides, and identify the polymers via μ-FTIR technique. A total of 3337 MPs were found in this study, of which 1488 were found in the sediment at the five sites analyzed, and 1849 in the bivalve tissues at the two sampling sites. MPs contamination was observed in all sediment samples and species of the pool and in each of the 10 specimens of the four species. Thus, the frequency of contamination by MPs reached 100 % for the analyzed samples. The number of filaments is higher than fragments in sediment samples and in each bivalve species. Regarding types and colors, the blue were greater than fragment-type in sediments and samples. In an effort to classify the polymers via μ-FTIR, our study was able to identify polypropylene, polyethylene and polyethylene terephthalate, besides a great number of cellulose fibers. Copyright © 2022 Elsevier B.V. All rights reserved.

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