Artículo
Occurrence, distribution, and characterization of suspended microplastics in a highly impacted estuarine wetland in Argentina
Forero Lopez, Ana Deisy
; Rimondino, Guido Noé
; Truchet, Daniela María
; Colombo, C. V.; Buzzi, Natalia Sol
; Malanca, Fabio Ernesto
; Spetter, Carla Vanesa
; Fernandez Severini, Melisa Daiana
Fecha de publicación:
01/09/2021
Editorial:
Elsevier
Revista:
Science of the Total Environment
ISSN:
0048-9697
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Microplastics have been a global concern due to their potential and widespread risks to organisms and environments. In this study, we investigated the abundance, distribution, and characteristics of microplastics (MPs) in the surface waters of the Bahía Blanca Estuary (BBE), specifically in its inner and middle zone. The results showed the dominant shape of MPs were fibers, being black, transparent, and blue the main colors. The concentrations of MPs ranged from 182 to 33,373 items m-3 with a mean value of 6,162 items m-3. The highest concentrations of MPs were detected in the middle zone of the estuary, a site that receives untreated sewage effluents from the city. The most abundant size ranges were from 0.5 to 1.5 mm (44.21%) and ˂0.5 mm (40.21%) and were predominant at all the sampling sites. The concentration of mesoplastics in the inner zone (16 items m-3) presented larger values than in the middle zone (5 items m-3). A wide variety of polymeric materials with predominance of microfibers such as cellulose-based, polyacrylonitrile, polyethylene terephthalate, and polypropylene were identified. Polyester/alkyd resins and poli(vinyl chloride) were also found. The analysis of MPs surface through SEM/EDX detected a variety of elements such as C, O, Si, Al, K, Ca, Cl, Ti, Fe, S, and P, indicating potential contaminant carriers in the water column. Some plastic particles presented a high degree of degradation on their surface morphology. Untreated sewage discharges appear to be a significant input of MPs. Therefore, the results provided in the present study should be considered by stakeholders interested in the management and conservation of this large coastal wetland with significant ecological and economic value.
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Identificadores
Colecciones
Articulos(IADO)
Articulos de INST.ARG.DE OCEANOGRAFIA (I)
Articulos de INST.ARG.DE OCEANOGRAFIA (I)
Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Forero Lopez, Ana Deisy; Rimondino, Guido Noé; Truchet, Daniela María; Colombo, C. V.; Buzzi, Natalia Sol; et al.; Occurrence, distribution, and characterization of suspended microplastics in a highly impacted estuarine wetland in Argentina; Elsevier; Science of the Total Environment; 785; 1-9-2021; 147141-147154
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