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Microplastics in marine mussels, biological effects and human risk of intake: A case study in a multi-stressor environment

Marine Pollution Bulletin 2023 30 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Lúcia Guilhermino, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Orlanda Ferreira, M.J. Botelho, M.J. Botelho, Luís Gabriel A. Barboza, Lúcia Guilhermino, Luís R. Vieira Luís R. Vieira Luís R. Vieira Luís R. Vieira Luís R. Vieira Lúcia Guilhermino, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Luís Gabriel A. Barboza, Carlos Vale, Carlos Vale, Luís R. Vieira Sara C. Cunha, Sara C. Cunha, Luís Gabriel A. Barboza, Lúcia Guilhermino, Sara C. Cunha, Lúcia Guilhermino, Lúcia Guilhermino, Alisa Rudnitskaya, Alisa Rudnitskaya, Lúcia Guilhermino, Luís Gabriel A. Barboza, Lúcia Guilhermino, Lúcia Guilhermino, Luís Gabriel A. Barboza, Lúcia Guilhermino, Luís R. Vieira Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Luís Gabriel A. Barboza, Sara C. Cunha, Luís Gabriel A. Barboza, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, José O. Fernandes, José O. Fernandes, Sara C. Cunha, José O. Fernandes, Lúcia Guilhermino, Luís R. Vieira Catarina Moreirinha, Catarina Moreirinha, Catarina Moreirinha, Luís R. Vieira Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Luís R. Vieira José O. Fernandes, Luís R. Vieira Sara C. Cunha, José O. Fernandes, Luís R. Vieira Carlos Vale, José O. Fernandes, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, M.J. Botelho, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Luís Gabriel A. Barboza, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Sara C. Cunha, José O. Fernandes, José O. Fernandes, José O. Fernandes, M.J. Botelho, Lúcia Guilhermino, Carlos Vale, Sara C. Cunha, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, Lúcia Guilhermino, José O. Fernandes, José O. Fernandes, Lúcia Guilhermino, José O. Fernandes, José O. Fernandes, Sara C. Cunha, Sara C. Cunha, Carlos Vale, José O. Fernandes, Carlos Vale, Lúcia Guilhermino, Sara C. Cunha, Alisa Rudnitskaya, Lúcia Guilhermino, Sara C. Cunha, Sara C. Cunha, José O. Fernandes, Lúcia Guilhermino, Luís R. Vieira

Summary

Researchers tracked microplastic contamination in mussels from the Douro estuary in Portugal across seasons and estimated that people who eat mussels from this area consume about 2,400 to 2,650 microplastic particles per year. While the contamination levels were relatively low compared to other studies, the mussels still showed signs of biological stress. This study provides one of the first direct estimates of how many microplastics people ingest through shellfish consumption.

This study documented seasonal levels of microplastics (MPs) and biomarkers (condition index, neurotoxicity, energy, oxidative stress) in mussels (Mytilus galloprovincialis), and water physico-chemical parameters in the Douro estuary (NE Atlantic coast), and estimated the human risk of MP intake (HRI) through mussels. Mussel stress was determined through the Integrated Biomarker Response (IBR). HRI was estimated from mussel MP concentrations and consumer habits. MPs were mainly micro-fibres (72 %) with varied chemical composition. Seasonal MP means (±SEM) in mussels ranged from 0.111 ± 0.044 (spring) to 0.312 ± 0.092 MPs/g (summer). Seasonal variations of mussel stress (IBR: 1.4 spring to 9.7 summer) and MP concentrations were not related. MeO-BDEs, PBDEs, temperature, salinity and other factors likely contributed to mussel stress variation. HRI ranged from 2438 to 2650 MPs/year. Compared to the literature, MP contamination in mussels is low, as well as the human risk of MP intake through their consumption.

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