Why biofouling cannot contribute to the vertical transport of small microplastic

Autor: Ina Benner, Uta Passow
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Microplastics and Nanoplastics, Vol 4, Iss 1, Pp 1-7 (2024)
Druh dokumentu: article
ISSN: 2662-4966
DOI: 10.1186/s43591-024-00098-2
Popis: Abstract In contrast to expectations, even buoyant microplastics like polyethylene and polypropylene are found at high concentrations in deep sediment traps and deep-sea sediments. To explain the presence of such buoyant microplastic particles at great ocean depths, several vertical transport mechanisms are under discussion with biofouling as one of the most referred. Biofouling is thought to increase the density of microplastic particles to the point that they sink to the deep sea, but this has mostly been shown on large microplastic particles ≥ 1 mm. However, although microplastics are defined as particles between 1 and 5000 μm, most microplastics are
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