Comparative analysis of microplastics detection methods applied to marine sediments: A case study in the Bay of Marseille
An intercomparison exercise on "microplastics in sediment" was carried out by five laboratories using samples collected in the Bay of Marseille in September 2021. The results from different extraction and identification methods varied depending on the type and size classes of MPs, and was better than 80 % for the size class >300 μm and for the fragments. The variability in recovery rates can be attributed to the choice of reagents and extraction protocols. Recovery rates per laboratory were between 47 % and 113 % and the use of ZnCl<sub>2</sub> and NaI increased recovery rates by an average of 70 %. The lowest recovery rates (47 and 53 %) were attributed to the reference methods (FTIR and LDIR), conversely the highest (80 and 87 %) were attributed to identification by Nile Red. The average ranged between 23 and 53 items /50 g d.w. with decreases offshore and at greater depth.
Authors
- Bavo De Witte (ORCID: https://orcid.org/0000-0002-4982-6351)
- François Galgani (ORCID: https://orcid.org/0000-0001-8770-6054)
- David Vanavermaete (ORCID: https://orcid.org/0000-0002-2087-9062)
- Gustavo Blanco (ORCID: https://orcid.org/0000-0001-7721-9869)
- Mélanie Ourgaud (ORCID: https://orcid.org/0000-0002-7881-0527)
- Laure Papillon (ORCID: https://orcid.org/0000-0003-1517-4620)
- Elise Georges
- Olivia Gérigny
- Richard Sempéré (ORCID: https://orcid.org/0000-0002-2956-0998)
- Urmas Lips (ORCID: https://orcid.org/0000-0002-9823-6294)
- Natalja Buhhalko (ORCID: https://orcid.org/0000-0002-4242-2880)
- Nelle Meyers
- Leelou Chouteau
Institutions
- Tallinn University of Technology (EE)
- Flanders Marine Institute (BE)
- Centre National de la Recherche Scientifique (FR)
- Ifremer (FR)
- Ghent University (BE)
- Instituto Español de Oceanografía (ES)
- Centre de Formation et de Recherche sur les Environnements Méditerranéens (FR)
- Institut Méditerranéen d’Océanologie (FR)
- Institut de Recherche pour le Développement (FR)
Publication Details
- Journal
- Marine Pollution Bulletin
- Published
- 2024-08-15
- DOI
- https://doi.org/10.1016/j.marpolbul.2024.116787
- Citations
- 11
- Primary Topic
- Microplastics and Plastic Pollution
- Type
- article
- Field-Weighted Citation Impact
- 1.46
Funders
- Ministerio de Ciencia, Innovación y Universidades
- Agence Nationale de la Recherche
- Belgian Federal Science Policy Office
- Ministry of Education, India