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Microplastics distribution in sediment and mussels along the British Columbia Coast, Canada

Marine Pollution Bulletin 2022 13 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Marie Noël, Catherine C. L. Wong, Peter S. Ross, Shreyas Patankar, Anahita Etemadifar, Carmen Morales‐Caselles, Shirley Lyons, Kelsey Delisle

Summary

Researchers characterized microplastics in marine sediment and mussel samples along the British Columbia coast using visual identification and FTIR spectroscopy, finding an average of 32.6 particles/kg in sediment and 0.38 particles per mussel, with polyester microfibers under 1,000 um dominating both matrices and Victoria Harbour identified as a hotspot.

Polymers
Study Type Environmental

Microplastics (MPs) were characterized in surficial marine sediment (n = 36) and mussel (n = 29) samples collected along the British Columbia (BC) coast, Canada, using visual identification and Fourier Transform Infrared Spectrometry. MPs counts averaged 32.6 ± 5.3 particles per kg in sediment and 0.38 ± 0.04 particles per individual mussel (0.24 ± 0.04 /g of tissue). Victoria Harbour and the North Coast (Prince Rupert area) were MP hotspots, likely resulting from a combination of local sources and oceanographic conditions. Microfibers <1000 μm dominated the pattern in both matrices (61.1 % in sediment; 65.4 % mussels) highlighting the suspected role of textiles in the widespread distribution of MPs in the marine environment. Overall, polyester was dominant in sediment and mussels (54.1 % and 63.5 %, respectively), followed by polyethylene (16.2 % and 11.5 %, respectively). This is the first report of MPs in sediment and mussels along the coast of BC using standardized methods.

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