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Página principal > Artículos > Artículos publicados > River Deltas as hotspots of microplastic accumulation : |
Fecha: | 2019 |
Resumen: | Microplastics (MPs) are considered pollutants that are ubiquitously distributed in aquatic environments. One of the key hotspot areas to understand fluxes of MPs entering into the oceans are transitional systems, between fresh and marine waters, where river estuaries in particular play an important role. In this study we analyzed MPs occurrence in the Ebro River Delta, Northeastern Iberian Peninsula, one of the largest wetland areas in the NW Mediterranean Basin. Microplastic profile, abundance, distribution, and characteristics were screened across different environmental matrices. MPs were collected in sandy beaches on the northern edge of the delta, in estuarine benthic sediments, and in surface waters of the Ebro River, with a mean abundance of 422 ± 119 MPs·kg−1 DW, 2052 ± 746 MPs·kg−1 DW and 3. 5 ± 1. 4 MPs·m−3, respectively. Fibers were found to be the largest class (70 ± 22%) of the three different environmental matrices investigated. We estimated that the Ebro surface water represents an input of 2. 14 × 109 MPs·yr−1 to the Mediterranean Sea. The main contribution of this study is a new insight on the distribution of MPs across different environmental matrices in river estuaries, where estuarine benthic sediments were identified as a potential important sink for MPs. |
Ayudas: | Ministerio de Economía y Competitividad MDM-2015-0552 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-1588 |
Nota: | Unidad de excelencia María de Maeztu MdM-2015-0552 |
Derechos: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
Lengua: | Anglès |
Documento: | Article ; recerca ; Versió acceptada per publicar |
Materia: | Microplastics ; Estuarine sediments ; Surface waters ; Beach |
Publicado en: | Science of the total environment, Vol. 687 (Oct. 2019) , p. 1186-1196, ISSN 1879-1026 |
Postprint 43 p, 3.5 MB |