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Other research product . 2021

Microplastics levels, size, morphology and composition in marine water, sediments and sand beaches. Case study of Tarragona coast (western Mediterranean)

Exposito, Nora; Rovira, Joaquim; Sierra, Jordi; Folch, Jaume; Schuhmacher, Marta;
Embargo
Published: 01 Jan 2021
Country: Spain
Abstract
Mediterranean Sea has been proposed as the sixth greatest accumulation zone for marine litter and the most affected regarding to microplastics (MPs). Tarragona (Catalonia, NE Spain) coastal region suffers high pressure due to urbanization, tourism, industrial harbour and petrochemical/plastic industries. The present study aims to quantify and characterize in size, morphology and composition the MPs present in sandy beaches, marine sediments, and surface seawaters of Tarragona coastal region. MPs mean abundance were 1.30 items/m(3) in surface seawaters, 32.4 items/kg in marine sediments, and 10.7 items/kg in sandy beaches. Polyester fibres were dominant MPs in bottom sediments and seawater meanwhile polyethylene and polypropylene fragments were the main MPs in beaches. The fibres balls associated with bottom sediments, organic matter and plankton were abundant, masking the real quantity of fibres in each reservoir. The abundance by volume of seawater MPs was higher to those found in oceanic areas and similar to other areas of Mediterranean Sea, corroborating that Western Mediterranean Sea as a region of MPs accumulation. MPs composition and abundance suggested the input of numerous land-base-sources, WWTP (wastewater treatment plants) effluents discharges, and emissaries as the most important. Marine MPs pollution were studied from an integrative point of view, that indudes superficial sea water, sand from beaches and sediments. The dynamics of MPs in Tarragona coast were characterized by seawater as the media that receive and facilitate dispersion and fragmentation. The shoreline acts as an intermediate reservoir with constant weathering and active exchange with seawater surface and the sediments acts as a significant sink for medium MPs sizes. It is necessary to develo
Subjects

Environmental Chemistry,Environmental Engineering,Environmental Sciences,Pollution,Waste Management and Disposal, Abundance, Accumulation, Article, Beach, Beaches, Chemical composition, Chemical structure, Coastal regions, Coastal zone, Coastal zones, Costal area, Debris, Dispersion, Effluents, Floating microplastics, Intertidal environment, Intertidal zone, Intertidal zones, Marine litter, Marine pollution, Marine sediments, Mediterranean sea, Microplastic, Microplastics, Morphology, Morphology and composition, Organic matter, Particle size, Plankton, Plastic additives, Plastic pollution, Plastic pollutions, Plastic waste, Polyester, Polyethylene, Polypropylene, Polypropylenes, Priority journal, Protected area, Reservoirs (water), Sea, Sea water, Sea-surface, Seashore, Seawater, Sediment, Sediment pollution, Sediments, Size, Spatial-distribution, Submarine geology, Surface water, Surface waters, Transport, Waste water treatment plant, Wastewater treatment, Astronomia / física, Biodiversidade, Biotecnología, Ciência da computação, Ciência de alimentos, Ciências agrárias i, Ciências ambientais, Ciências biológicas i, Ciências biológicas ii, Ciências biológicas iii, Direito, Enfermagem, Engenharias i, Engenharias ii, Engenharias iii, Ensino, Environmental chemistry, Environmental engineering, Environmental sciences, Farmacia, Geociências, Geografía, Historia, Interdisciplinar, Matemática / probabilidade e estatística, Materiais, Medicina i, Medicina ii, Medicina iii, Medicina veterinaria, Nutrição, Odontología, Pollution, Química, Saúde coletiva, Waste management and disposal, Zootecnia / recursos pesqueiros

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