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Biofragmentation of Polystyrene Microplastics: A Silent Process Performed by Chironomus sancticaroli Larvae.
Queiroz, Lucas G; Prado, Caio C A; Melo, Eduardo C; Moraes, Beatriz R; de Oliveira, Paulo F M; Ando, Rômulo A; Paiva, Teresa C B; Pompêo, Marcelo; Rani-Borges, Bárbara.
Afiliação
  • Queiroz LG; Institute of Biosciences, University of São Paulo, Rua do Matão 277, São Paulo, 05508-090 São Paulo, Brazil.
  • Prado CCA; School of Engineering of Lorena, Department of Biotechnology, University of São Paulo, Estrada do Campinho s/n, Lorena, 12602-810 São Paulo, Brazil.
  • Melo EC; Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, Av Prof. Lineu Prestes 748, São Paulo, 05508-900 São Paulo, Brazil.
  • Moraes BR; Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, Av Prof. Lineu Prestes 748, São Paulo, 05508-900 São Paulo, Brazil.
  • de Oliveira PFM; Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, Av Prof. Lineu Prestes 748, São Paulo, 05508-900 São Paulo, Brazil.
  • Ando RA; Institute of Chemistry, Department of Fundamental Chemistry, University of São Paulo, Av Prof. Lineu Prestes 748, São Paulo, 05508-900 São Paulo, Brazil.
  • Paiva TCB; School of Engineering of Lorena, Department of Basic and Environmental Sciences, University of São Paulo, Estrada do Campinho s/n, Lorena, 12602-810 São Paulo, Brazil.
  • Pompêo M; Institute of Biosciences, University of São Paulo, Rua do Matão 277, São Paulo, 05508-090 São Paulo, Brazil.
  • Rani-Borges B; Institute of Science and Technology, São Paulo State University, Av Três de Março 511, Sorocaba, 18087-180 São Paulo, Brazil.
Environ Sci Technol ; 58(10): 4510-4521, 2024 Mar 12.
Article em En | MEDLINE | ID: mdl-38426442
ABSTRACT
Polystyrene (PS) is one of the main synthetic polymers produced around the world, and it is present in the composition of a wide variety of single-use objects. When released into the environment, these materials are degraded by environmental factors, resulting in microplastics. We investigated the ability of Chironomus sancticaroli (Diptera, Chironomidae) to promote the fragmentation of PS microspheres (24.5 ± 2.9 µm) and the toxic effects associated with exposure to this polymer. C. sancticaroli larvae were exposed to 3 different concentrations of PS (67.5, 135, and 270 particles g-1 of dry sediment) for 144 h. Significant lethality was observed only at the highest concentration. A significant reduction in PS particle size as well as evidence of deterioration on the surface of the spheres, such as grooves and cracks, was observed. In addition, changes in oxidative stress biomarkers (SOD, CAT, MDA, and GST) were also observed. This is the first study to report the ability of Chironomus sp. to promote the biofragmentation of microplastics. The information obtained demonstrates that the macroinvertebrate community can play a key role in the degradation of plastic particles present in the sediment of freshwater environments and can also be threatened by such particle pollution.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Chironomidae Limite: Animals Idioma: En Revista: Environ Sci Technol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Chironomidae Limite: Animals Idioma: En Revista: Environ Sci Technol Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Brasil País de publicação: Estados Unidos