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Small plastic debris in sediments from the Central Adriatic Sea: Types, occurrence and distribution

Marine Pollution Bulletin 2017 63 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Michele Mistri, Vanessa Infantini, Marco Scoponi, Tommaso Granata, Letizia Moruzzi, Francesca Massara, Miriam De Donati, Cristina Munari

Summary

Microplastic debris was found in all sediment samples collected along a 140 km transect in the central Adriatic Sea, including in deep offshore sediments. The study is one of the first to systematically document microplastic distribution along a coast-to-open-sea gradient in this region.

Polymers

This is the first survey to investigate the occurrence and extent of microplastic contamination in sediments collected along a coast-open sea 140km-long transect in the Central Adriatic Sea. Plastic debris extracted from 64 samples of sediments were counted, weighted and identified by Fourier-transform infrared spectroscopy (FT-IR). Several types of plastic particles were observed in 100% of the stations. Plastic particles ranged from 1 to 30mm in length. The primary shape types by number were filaments (69.3%), followed by fragments (16.4%), and film (14.3%). Microplastics (1-5mm) accounted for 65.1% of debris, mesoplastics (5-20mm) made up 30.3% of total amount, while macro debris (>20mm) accounted for 4.6% of total plastics collected. Identification through FT-IR spectroscopy evidenced the presence of 6 polymer types: the majority of plastic debris were nylon, polyethylene and ethylene vinyl alcohol copolymer. Our data are a baseline for microplastic research in the Adriatic Sea.

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