Floating microplastics pollution in the Central Atlantic Ocean of Morocco: Insights into the occurrence, characterization, and fate

Mohamed Rida Abelouah, Mohamed Ben-Haddad, Sara Hajji, Gabriel E. De-la-Torre, Taoufyq Aziz, Jaouad Abou Oualid, Mohamed Banni, Aicha Ait Alla

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

This work presents preliminary results about abundance, distribution, characteristics, sources, and fate of microplastics (MPs) in the Central Atlantic Ocean (CAO) of Morocco. The investigation was conducted into three subsections, each characterized by different types of human activities and covering rural, village, and urban areas. MPs were detected in 100 % of the sampling sites. The abundances varied from 0.048 to 3.305 items/m3, with a mean abundance of 0.987 ± 1.081 items/m3. MPs abundance was higher in surface seawater linked to urban areas compared to village and rural areas. The dominant polymer type was polyester (PET-53.8 %) followed by polypropylene (PP-24.36 %), polyamide (PA-7.56 %), polystyrene (PS-6.88 %), polyvinyl chloride (PVC-2.64 %), ethylene vinyl acetate (EVA-2.60 %), polyetherurethane (PUR-1.36 %), and acrylic (AC-0.8 %). Fibers were the most dominant shapes accounting for over 50 %. MPs were mainly smaller than 2 mm in size (71 %) and characterized by colorful aspects. These findings suggested that wastewater treatment plant (WWTP) effluents and anthropogenic activities (industry, tourism, sanitation, and fishing) are the major pollution sources of MPs in the study area. SEM/EDX micrographs showed different weathering degrees and chemical elements adhered to the MPs surface.

Idioma originalInglés
Número de artículo113969
PublicaciónMarine Pollution Bulletin
Volumen182
DOI
EstadoPublicada - set. 2022
Publicado de forma externa

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