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Identification of microplastics and associated contaminants using ultra high resolution microscopic and spectroscopic techniques.
Melo-Agustín, Paola; Kozak, Eva R; de Jesús Perea-Flores, María; Mendoza-Pérez, Jorge A.
Afiliação
  • Melo-Agustín P; Departamento de Ingeniería en Sistemas Ambientales, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Avenida Wilfrido Massieu, esquina Cerrada Miguel Stampa s/n, Unidad Profesional Adolfo López Mateos, Colonia Zacatenco, 07738 Ciudad de México, Mexico.
  • Kozak ER; Departamento de Estudios para el Desarrollo Sustentable de Zonas Costeras, Universidad de Guadalajara (UdeG), Gómez Farias 82, San Patricio Melaque, Jalisco 48980, Mexico.
  • de Jesús Perea-Flores M; Centro de Nanociencias y Micro-Nanotecnologías (CNMN), Instituto Politécnico Nacional (IPN), Luis Enrique Erro s/n, Unidad Profesional Adolfo López Mateos, Colonia Zacatenco, 07738 Ciudad de México, Mexico.
  • Mendoza-Pérez JA; Departamento de Ingeniería en Sistemas Ambientales, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Avenida Wilfrido Massieu, esquina Cerrada Miguel Stampa s/n, Unidad Profesional Adolfo López Mateos, Colonia Zacatenco, 07738 Ciudad de México, Mexico. Electronic
Sci Total Environ ; 828: 154434, 2022 Jul 01.
Article em En | MEDLINE | ID: mdl-35278555
The present study establishes a new procedure to characterize micro(nano)plastics (MNPs) and identify contaminants adhered to the plastic particles in aquatic environments by applying ultra-high resolution microscopy and spectroscopy techniques. Naturally fragmented microplastics (MPs) were collected from Manzanillo and Santiago Bays, Mexico and analyzed using: Confocal Laser Scanning Microscopy (CLSM), Fourier-Transform Infrared Spectroscopy (FTIR), µ-RAMAN, Atomic Force Microscopy (AFM), X-ray Photoelectron Spectroscopy (XPS) and Environmental Electron Scanning Microscopy (ESEM). The information obtained from each of these techniques was integrated to produce a comprehensive profile of each particle. Sample preparation was tested by applying three different rinses (unrinsed, distilled water and alcohol) to untreated MPs collected from Manzanillo Bay, finding that when large impurities are present an alcohol rinse makes it easier to examine the associated contaminants. Based on this emerging methodology, polyethylene and polypropylene MPs were identified with associated contaminants such as arsenic, cadmium, aluminum, and benzene. This study demonstrates the presence of pollutants that may be linked to MNPs in aquatic ecosystems and proposes an accurate relatively fast procedure for their analysis that does not require chemical extraction.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Microplásticos Tipo de estudo: Diagnostic_studies / Prognostic_studies / Risk_factors_studies Idioma: En Revista: Sci Total Environ Ano de publicação: 2022 Tipo de documento: Article País de afiliação: México País de publicação: Holanda
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Microplásticos Tipo de estudo: Diagnostic_studies / Prognostic_studies / Risk_factors_studies Idioma: En Revista: Sci Total Environ Ano de publicação: 2022 Tipo de documento: Article País de afiliação: México País de publicação: Holanda