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Microplastics in Marine Bivalves from the Nordic Environment

image of Microplastics in Marine Bivalves from the Nordic Environment

Microplastics in marine bivalves from the Nordic environment: MP were analysed in mussels at 100 sites from Grenland to the Baltic. MP were found in 4 out of 5 species. The coastal waters of the North Sea, Kattegat, Skagerrak, and the western Baltic appear to be areas of MP accumulation. Mussels from urbanized areas and harbours contained the most MP. The abundance of MP was especially high in the Oslofjord. A total of 11 different polymer types were detected through 3 chemical characterisation methodes. Black rubbery particles, possibly derived from tyre wear, were the dominant particle type. The presence of rubber compounds was confirmed for Blue mussels (Mytilus) in analysis using pyrolysis GC-MS. This is the first study to document these polymer types in mussels. Mussels, especially Mytilus spp., Limecola balthica and Abra nitida are suitable for monitoring of MP in Nordic waters.

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Preface

This report represents the results of the project “Microplastics in marine bivalves from the Nordic environment”. The project was managed by the Norwegian Institiute for Water Research (NIVA) by contract from the Norwegian Environment Agency (Miljødirektoratet) and funded by the Nordic Council of Ministers (Nordisk ministerråd). Coordinator at the Norwegian Environment Agency is Runar Mathisen and the project manager at NIVA is NormanW. Green.

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