Microplastics in edible mussels from a southern Mediterranean lagoon: Preliminary results on seawater-mussel transfer and implications for environmental protection and seafood safety
2020
Wakkaf, Takwa | El Zrelli, Radhouan | Kedzierski, Mikaël | Balti, Rafik | Shaiek, Moez | Mansour, Lamjed | Tlig-Zouari, Sabiha | Bruzaud, Stéphane | Rabaoui, Lotfi
This study assesses the microplastics (MPs) levels in mussels (Mytilus galloprovincialis) and seawater from a southern Mediterranean lagoon (Bizerte lagoon, Northern Tunisia) and discusses the potential effects of its consumption on human health. Polyethylene was the most abundant in mussels and seawater, followed by polypropylene and cellophane. The lowest and highest average MPs concentrations were recorded in the lagoon channel and southern area of the lagoon, respectively, for both mussels (2.6 ± 1.7–12.0 ± 1.4 items mussel⁻¹) and seawater (0.2 ± 0.1–0.7 ± 0.2 items L⁻¹). Mussels in areas highly polluted with fibers and polyethylene were found to have higher potential to ingest and/or adhere higher numbers of these particles. The annual dietary intake of MPs by Tunisians through the consumption of local mussels was estimated at 4.2 items capita⁻¹ year⁻¹. Even though MPs are not biodegraded and can be excreted by humans, their potential human health risks are discussed in this paper.
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