Occurrence and identification of microplastics in beach sediments from the Hauts-de-France region - Anses - Agence nationale de sécurité sanitaire de l’alimentation, de l’environnement et du travail Accéder directement au contenu
Article Dans Une Revue Environmental Science and Pollution Research Année : 2019

Occurrence and identification of microplastics in beach sediments from the Hauts-de-France region

Résumé

The present work was carried out to quantify microplastics (MP) from three sandy beaches along the Côte d’Opale coastline located in the Hauts-de-France region of northern France. Three different study sites located along the English Channel were investigated due to different levels of anthropopression and hydrodynamic conditions. Sediments were collected at three different tide lines: high tide line (HTL), middle of the intertidal zone (IZ), and low tide line (LTL), to investigate the effects of tide line on microplastic contamination. Particles and fibers were counted and colors were recorded; polymer identification was then performed using pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS). Particle and fiber abundances ranged from 23.4 ± 18.9 to 69.3 ± 30.6 items kg−1 dry weight sediment, with a trend towards fiber predominance, were observed. No difference in particle and fiber abundance was found between the different beaches and tide lines, except for Boulogne-sur-Mer, where the particle number was significantly different between tide lines. Major polymers identified were polyethylene (36.6%) and polypropylene (10.7%). This citizen science project provided preliminary data about the abundance and polymeric nature of MP along the Côte d’Opale coastline.
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Dates et versions

anses-02558662 , version 1 (29-04-2020)

Identifiants

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Périne Doyen, Ludovic Hermabessiere, Alexandre Dehaut, Charlotte Himber, Marion Decodts, et al.. Occurrence and identification of microplastics in beach sediments from the Hauts-de-France region. Environmental Science and Pollution Research, 2019, 26, pp.28010-28021. ⟨10.1007/s11356-019-06027-8⟩. ⟨anses-02558662⟩
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