River signature over coastal area (Eastern Mediterranean): Grain size and geochemical analyses of sediments

Ghsoub, Myriam; Fakhri, Milad; Courp, Thierry; Khalaf, Gaby; Buscail, Roselyne; Ludwig, Wolfgang

doi:10.1016/j.rsma.2020.101169

Cited by 5 publications

(1 citation statement)

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“…Another crucial issue to provide reliable estimates of microplastics in deep-sea sediments is the extraction efficiency, which might be reduced compared to coastal sediments as deep-sea sediments are generally characterized by finer grain size and higher content of refractory organic matter, which could trap organic particles (Ghsoub et al, 2020). However, to date, the available protocols applied to the deep-sea sedimentary matrix, have not been tested for their efficiency in recovering microplastics.…”

Section: Introductionmentioning

confidence: 99%

Extraction efficiency of different microplastic polymers from deep-sea sediments and their quantitative relevance

Canensi

Barucca²,

Corinaldesi³

2022

Front. Mar. Sci.

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An increasing number of methods for extracting microplastic particles from marine sediments have been published but without evaluating the extraction efficiency. Furthermore, while most of the procedures developed have been applied to sandy sediments from shallow water habitats, specific and standardized procedures for deep-water sediments (> 200 meters deep) are limited. In this study, we describe a specific protocol for extracting microplastics (2- 1000 µm) from deep-sea sediments and for quantifying and identifying them. We also assessed its extraction efficiency, which resulted in a high recovery (on average ca. 60%, and up to 80%) particularly, for polyethylene, polypropylene, and polystyrene. This method can be applied to all fine-grained/muddy sediments and allows the extraction of even the smallest fraction of microplastics (<20 µm), which are expected to have the most severe effects on marine biodiversity and ecosystem functioning and ultimately also have implications for human health.

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Section: Introductionmentioning

confidence: 99%