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From the coast to the shelf: Microplastics in Rías Baixas and Miño River shelf sediments (NW Spain)

Marine Pollution Bulletin 2020 32 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Olga Carretero, Jesús Gago Olga Carretero, Jesús Gago Jesús Gago Olga Carretero, Jesús Gago Jesús Gago L. Viñas, Jesús Gago Jesús Gago Jesús Gago L. Viñas, Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago L. Viñas, L. Viñas, L. Viñas, Jesús Gago Jesús Gago Jesús Gago L. Viñas, Jesús Gago Olga Carretero, Olga Carretero, Jesús Gago Jesús Gago Olga Carretero, Olga Carretero, L. Viñas, L. Viñas, L. Viñas, Jesús Gago Jesús Gago Jesús Gago Jesús Gago Jesús Gago Olga Carretero, L. Viñas, L. Viñas, Jesús Gago Jesús Gago Jesús Gago L. Viñas, Jesús Gago Jesús Gago L. Viñas, L. Viñas, Jesús Gago Jesús Gago L. Viñas, Olga Carretero, Jesús Gago

Summary

Microplastics were characterized for the first time in sediments from the Rias Baixas and Mino River shelf off the northwest coast of Spain, an area known for intense shellfish aquaculture. The study established baseline contamination levels in a commercially important fishing region and identified terrestrial and marine sources contributing to the sediment microplastic load.

Polymers

HDPE

Study Type Environmental

Microplastics (<5 mm; MPs) are globally recognized as an issue of emerging concern in the marine environment. In this study, MPs were determined for the first time in sediments from Rías Baixas and Miño river shelf, to show the baseline contamination levels. The Rías is well known for its intense fishing and shellfish harvesting activities. The sampling stations were selected due to their different exposure to anthropogenic activities and/or pressures. Sediment samples were collected using a box corer dredge and analyzed with density separation and μF-TIR analysis to determine polymer type. The results showed MPs pollution in all stations. The mean concentration was 70.2 ± 74.2 particles/kg DW. The main MPs shape was fibers (88.8%) followed by fragments (5.80%). Regarding the polymers, the most abundant were PP (43%) and HDPE (29%). Once again, MPs are ubiquitous all along Rías and Miño river mouth as previously shown in different works.

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