Quantification and characterization of microplastics in blue mussels (Mytilus edulis): protocol setup and preliminary data on the contamination of the French Atlantic coast

• Published in: Environmental science and pollution research international Vol. 25; no. 7; pp. 6135 - 6144
• Main Authors: Phuong, Nam Ngoc, Zalouk-Vergnoux, Aurore, Kamari, Abderrahmane, Mouneyrac, Catherine, Amiard, Frederic, Poirier, Laurence, Lagarde, Fabienne
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2018; Springer Verlag
• Subjects: Analytical chemistry; Animals; Aquatic Organisms - chemistry; Aquatic Organisms - drug effects; Aquatic Pollution; Atlantic Ocean; Atmospheric Protection/Air Quality Control/Air Pollution; Chemical Sciences; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental Monitoring - methods; France; Health and Environmental Risks Associated with Emerging Pollutants and Novel Green Processes; Mytilus edulis - chemistry; Mytilus edulis - drug effects; Plastics - analysis; Preliminary Data; Seafood - analysis; Waste Water Technology; Water Management; Water Pollutants, Chemical - analysis; Water Pollution Control; Microplastics; Digestion; Mussel; French coastal environment, characterization; French coastal environment / characterization
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-017-8862-3

Microplastics (MPs) constitute a main environmental issue due to their threat to marine organisms and so far to humans. The lack of a fast standard protocol in MP isolation and identification from living organisms bring to challenge for the science. In this paper, an optimized protocol using potassium hydroxide 10% (KOH 10%; m/v) for digestion of mussel soft tissues ( Mytilus edulis ) and multi-steps of sedimentation has been developed. Efficiency higher than 99.9% of organic and mineral matter elimination was shown by application on mussels sampled on the French Atlantic coast. The identification of MPs was performed by FTIR microscopy straight on the filter and the whole analysis can be compatible with a routine goal. Fourteen MPs of four different chemical natures were found and identified in 5 pools of 3 sampled mussels. Their size ranged from 30 to 200 μm. Further investigations are now needed to evaluate the potential risk of such particles within this marine bivalve species and other filter feeders.