The Côte d’Argent, France: Quantification of Plastic Pollution in Beach Sediments

Daniela Bornstein and Johannes Steinhaus ()
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Daniela Bornstein: Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, Von-Liebig-Straße 20, 53359 Rheinbach, Germany
Johannes Steinhaus: Department of Natural Sciences, Bonn-Rhein-Sieg University of Applied Sciences, Von-Liebig-Straße 20, 53359 Rheinbach, Germany

Sustainability, 2024, vol. 16, issue 7, 1-19

Abstract: Pollution with anthropogenic waste, particularly persistent plastic, has now reached every remote corner of the world. The French Atlantic coast, given its extensive coastline, is particularly affected. To gain an overview of current plastic pollution, this study examined a stretch of 250 k m along the Silver Coast of France. Sampling was conducted at a total of 14 beach sections, each with five sampling sites in a transect. At each collection site, a square of 0.25 m 2 was marked. The top 5 c m of beach sediment was collected and sieved on-site using an analysis sieve (mesh size 1 m m ), resulting in a total of approximately 0.8 m 3 of sediment, corresponding to a total weight of 1300 k g of examined beach sediment. A total of 1972 plastic particles were extracted and analysed using infrared spectroscopy, corresponding to 1.5 particles kg −1 of beach sediment. Pellets (885 particles), polyethylene as the polymer type (1349 particles), and particles in the size range of microplastics (943 particles) were most frequently found. The significant pollution by pellets suggests that the spread of plastic waste is not primarily attributable to tourism (in February/March 2023). The substantial accumulation of meso- and macro-waste (with 863 and 166 particles) also indicates that research focusing on microplastics should be expanded to include these size categories, as microplastics can develop from them over time.

Keywords: Atlantic coast; microplastic; plastic pollution; beaching; infrared spectroscopy (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
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