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Microplastics on Barra beach sediments in Aveiro, Portugal

Marine Pollution Bulletin 2021 46 citations

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Researchers collected sediment samples from Praia da Barra beach in Aveiro, Portugal and found significant quantities of microplastics, with fragment and fibre morphologies dominating, linking contamination to both tourism activity and maritime traffic in this Atlantic coastal zone.

Study Type Environmental

Microplastic (MPs) pollution has been recognized as a serious threat to marine environment with the growing use of plastics. There is no sufficient data on the extent and characteristics of MPs pollution in the beach sediments and sand in the Atlantic Ocean. The coastal area is one of the main tourist zones in Aveiro in Portugal, thus, impacted by both tourism and maritime traffic, which are major sources of MPs. Considering this issue, 33 sediment samples were collected from the Praia da Barra beach in Aveiro. This pilot study showed that large quantities of MPs are accumulated on this beach with a median concentration of 100 MP kg-1 (15-320 MP kg-1), that is dominated by polyethylene (30%), polypropylene (27%), polystyrene (18%), nylon (12%), and polyester (6%). Size <1 mm constituted 99.5% of particles, mostly of transparent or black colors, with highest concentrations closest to the water line.

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