Wave-Induced Distribution of Microplastic in the Surf Zone

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Kerpen, N. B.; Schlurmann, T.; Schendel, A.; Gundlach, J.; Marquard, D.; Hüpgen, M.: Wave-Induced Distribution of Microplastic in the Surf Zone. In: Frontiers in marine science 7 (2020), 590565. DOI: https://doi.org/10.3389/fmars.2020.590565

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Sum total of downloads: 35

In this study, the wave-induced distribution of 13 microplastic (MP) samples of different size, shape, and density was investigated in a wave flume with a sandy mobile beach bed profile. The particle parameter were chosen based on an occurrence probability investigated from the field. MP abundances were analyzed in cross-shore and vertical direction of the test area after over 40,000 regular waves. It was found, that MP particles accumulated in more shallow waters with increasing size and density. Particles with high density (ρs>1.25 g/cm3) have been partly confined into deeper layers of the sloping beach during the formation of the bed profile. Particles with a density lower than that of water used in the experiments floated constantly in the surf zone or deposited on the beach caused by wave run-up. A correlation was found between the settling velocity of the MP particles and the flow velocity at the accumulation point and a power function equation developed. The obtained results were critically discussed with findings from the field and further laboratory studies.
License of this version: CC BY 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2020
Appears in Collections:Fakultät für Bauingenieurwesen und Geodäsie
Naturwissenschaftliche Fakultät

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1 image of flag of Germany Germany 18 51.43%
2 image of flag of United States United States 12 34.29%
3 image of flag of China China 2 5.71%
4 image of flag of Vietnam Vietnam 1 2.86%
5 image of flag of Tunisia Tunisia 1 2.86%
6 image of flag of Japan Japan 1 2.86%

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