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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Detection Methods Environmental Sources Marine & Wildlife Sign in to save

Microplastics in beach sediments of the Azores archipelago, NE Atlantic

Marine Pollution Bulletin 2024 20 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 55 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Joao, Frias, Paula Sobral, Joao, Frias, Clara F. Rodrigues, Emily M. Duncan Emily M. Duncan Joao, Frias, Emily M. Duncan Joao, Frias, Christopher K. Pham, Christopher K. Pham, Joao, Frias, Emily M. Duncan Emily M. Duncan Joana Antunes, Joao, Frias, Joao, Frias, Paula Sobral, Joana Antunes, Joao, Frias, Joana Antunes, Joana Antunes, Joana Antunes, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Emily M. Duncan Emily M. Duncan Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Paula Sobral, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Joao, Frias, Christopher K. Pham, Christopher K. Pham, Christopher K. Pham, Joana Antunes, Joana Antunes, Joana Antunes, Joana Antunes, Joana Antunes, Joana Antunes, Joana Antunes, Joana Antunes, Christopher K. Pham, Emily M. Duncan Paula Sobral, Yasmina Rodríguez, Yasmina Rodríguez, Yasmina Rodríguez, Paula Sobral, Paula Sobral, Paula Sobral, Yasmina Rodríguez, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Yasmina Rodríguez, Paula Sobral, Paula Sobral, Paula Sobral, Joao, Frias, Joao, Frias, Joao, Frias, Paula Sobral, Paula Sobral, Paula Sobral, Joana Antunes, Joana Antunes, Joao, Frias, Christopher K. Pham, Christopher K. Pham, Paula Sobral, Christopher K. Pham, Paula Sobral, Christopher K. Pham, Joao, Frias, Paula Sobral, Paula Sobral, Christopher K. Pham, Joao, Frias, Joao, Frias, Joao, Frias, Christopher K. Pham, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Joana Antunes, Rita Carriço, Rita Carriço, Paula Sobral, Christopher K. Pham, Joao, Frias, Christopher K. Pham, Paula Sobral, Joao, Frias, Christopher K. Pham, Paula Sobral, Yasmina Rodríguez, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Joao, Frias, Christopher K. Pham, Paula Sobral, Paula Sobral, Paula Sobral, Joao, Frias, Paula Sobral, Paula Sobral, Christopher K. Pham, Joana Antunes, Paula Sobral, Paula Sobral, Paula Sobral, Joana Antunes, Joana Antunes, Christopher K. Pham, Christopher K. Pham, Joao, Frias, Christopher K. Pham, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Christopher K. Pham, Emily M. Duncan Emily M. Duncan Emily M. Duncan Christopher K. Pham, Christopher K. Pham, Paula Sobral, Christopher K. Pham, Joao, Frias, Joao, Frias, Paula Sobral, Joana Antunes, Joana Antunes, Paula Sobral, Paula Sobral, Yasmina Rodríguez, Yasmina Rodríguez, Paula Sobral, Christopher K. Pham, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Paula Sobral, Christopher K. Pham, Joao, Frias, Paula Sobral, Christopher K. Pham, Yasmina Rodríguez, Yasmina Rodríguez, Clara F. Rodrigues, Emily M. Duncan

Summary

Researchers surveyed 19 beaches across eight islands of the Azores archipelago for microplastic contamination. Fibers, mostly polyester, made up over 80% of the particles found, with the highest concentrations on Terceira Island, showing that even remote oceanic islands in the Atlantic are not spared from widespread microplastic pollution.

Polymers
Study Type Environmental

Oceanic islands are exposed to plastic debris that has accumulated in the open ocean, particularly in the subtropical gyres. This study investigates the abundance and typology of microplastics (from 0.1 to 5 mm) on 19 sandy beaches spread across 8 oceanic islands of the Azores archipelago. Between January and April 2016, a total of 341 particles retrieved from all beaches, were identified as microplastics. The highest concentration (50.19 ± 21.93 particles kg<sup>-1</sup> dw) was found in Terceira Island. Beach morphology and grain size were important factors explaining microplastic concentration. Fibres were the most dominant morphology recovered (80.9 %), followed by fragments (12.3 %). Fourier transform infrared spectroscopy (FTIR) revealed that 41 % of the fibres consisted of polyester and 60 % of the fragments were polyethylene. This research underlines the widespread contamination of microplastics in oceanic islands of the Atlantic Ocean.

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