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. 2019 Jul:250:807-819.
doi: 10.1016/j.envpol.2019.04.051. Epub 2019 Apr 19.

Microplastic contamination and pollutant levels in mussels and cockles collected along the channel coasts

Ludovic Hermabessiere  1 , Ika Paul-Pont  2 , Anne-Laure Cassone  2 , Charlotte Himber  1 , Justine Receveur  3 , Ronan Jezequel  3 , Maria El Rakwe  4 , Emmanuel Rinnert  5 , Gilles Rivière  6 , Christophe Lambert  2 , Arnaud Huvet  7 , Alexandre Dehaut  1 , Guillaume Duflos  1 , Philippe Soudant  8
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Free article

Microplastic contamination and pollutant levels in mussels and cockles collected along the channel coasts

Ludovic Hermabessiere et al. Environ Pollut. 2019 Jul.
Free article

Abstract

Nowadays, environmental pollution by microplastics (<5 mm; MP) is a major issue. MP are contaminating marine organisms consumed by humans. This work studied MP contamination in two bivalve species of commercial interest: blue mussel (Mytilus edulis) and common cockle (Cerastoderma edule) sampled on the Channel coastlines (France). In parallel, 13 plastic additives and 27 hydrophobic organic compounds (HOC) were quantified in bivalves flesh using SBSE-TD-GS-MS/MS to explore a possible relationship between their concentrations and MP contamination levels. MP were extracted using a 10% potassium hydroxide digestion method then identified by μ-Raman spectroscopy. The proportion of contaminated bivalves by MP ranged from 34 to 58%. Blue mussels and common cockles exhibited 0.76 ± 0.40 and 2.46 ± 1.16 MP/individual and between 0.15 ± 0.06 and 0.74 ± 0.35 MP/g of tissue wet weight. Some HOC and plastic additives were detected in bivalves. However, no significant Pearson or Spearman correlation was found between MP loads and plastic additives or HOC concentrations in bivalve tissues for the two species.

Keywords: Cockle; Hydrophobic organic compounds; Microplastic; Mussel; Plastic additive.

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