Accumulation and distribution of microplastics in coastal sediments from the inner Oslofjord, Norway

Microplastic presence in benthic marine systems is a widely discussed topic. The influence of the natural matrix on microplastic distribution within the sedimentary matrix is often overlooked. Marine sediments from the western inner Oslofjord, Norway, were investigated for temporal trends, with a pa...

Full description

Bibliographic Details
Published in:Marine Pollution Bulletin
Main Authors: Bronzo, Laura, Lusher, Amy, Merete, Schøyen, Morigi, Caterina
Other Authors: Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia, Norwegian Institute for Water Research (INGV), Økernveien 94, 0579 Oslo, Norway; Department of Biological Sciences, University of Bergen, Thormøhlens gate 53 A/, 5020 Bergen, Norway, Norwegian Institute for Water Research (NIVA), Økernveien 94, 0579 Oslo, Norway, University of Pisa, Earth Sciences Department, Via Santa Maria 53, 56126, Italy
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2021
Subjects:
Accumulation
Plastic pollution
Canonical correspondence analysis (CCA)
Wastewater treatment plant (WWTP)
Sediment core
FT-IR
Microplastics
Marine sediments
Niva
Norway
Arctic
Online Access:http://hdl.handle.net/2122/15372
https://www.sciencedirect.com/science/article/pii/S0025326X21011103?via%3Dihub
https://doi.org/10.1016/j.marpolbul.2021.113076
Description
Summary:Microplastic presence in benthic marine systems is a widely discussed topic. The influence of the natural matrix on microplastic distribution within the sedimentary matrix is often overlooked. Marine sediments from the western inner Oslofjord, Norway, were investigated for temporal trends, with a particular focus on the relationship between sediment grain-sizes and microplastic distribution. Density separation, optical microscopy and chemical validation were used to categorize microplastics. Microplastic concentrations ranged from 0.02 to 1.71 MPs g − 1 dry weight (dw). Fibres were the most common (76%), followed by fragments and films (18%, 6%). Common polymers were polyesters (50%), polypropylene (18%), polymethylmethacrylate (9%), rayon and viscose (5%) and elastane (4%). Microplastics appear to accumulate preferentially according to their morphology and polymer type in certain sediment grain-sizes. Microplastics inputs to the Oslofjord appear to derive from a wastewater treatment plant in the vicinity. Although, the redistribution of microplastics within the fjord needs further investigation. This project was supported by the Norwegian Institute for Water Research (NIVA) and the Erasmus+ Programme (EU). Published 113076 7SR AMBIENTE – Servizi e ricerca per la società JCR Journal

Similar Items