Chemical composition of microplastics floating on the surface of the Mediterranean Sea

被引：24
|
作者：
Kedzierski, Mikael [1 ]
Palazot, Maialen [1 ]
Soccalingame, Lata [1 ]
Falcou-Prefol, Mathilde [2 ]
Gorsky, Gabriel [3 ,5 ]
Galgani, Francois [4 ]
Bruzaud, Stephane [1 ]
Pedrotti, Maria Luiza [3 ]
机构：
[1] Univ Bretagne Sud, IRDL, UMR CNRS 6027, F-56100 Lorient, France
[2] Univ Antwerp, Syst Physiol & Ecotoxicol Res SPHERE, B-2020 Antwerp, Belgium
[3] Sorbonne Univ, LOV, UMR CNRS 7093, F-06230 Villefranche Sur Mer, France
[4] IFREMER, LER PAC, F-20600 Bastia, France
[5] Res Federat Study Global Ocean Syst Ecol & Evolut, FR2022 Tara Oceans GOSEE, Paris, France
来源：
MARINE POLLUTION BULLETIN | 2022年 / 174卷
关键词：
Microplastics; Mediterranean Sea; FTIR; Chemical composition; Poly(ethylene); ABUNDANCE; WATERS; SEDIMENTS; POLLUTION; PLASTICS; DEBRIS; FLOOD; COAST; RIVER; CITY;
D O I：
10.1016/j.marpolbul.2021.113284
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The Mediterranean Sea is one of the most studied regions in the world in terms of microplastic (MP) contamination. However, only a few studies have analysed the chemical composition of MPs at the Mediterranean Sea surface. In this context, this study aims to describe the chemical composition as a function of particle size, mass and number concentrations of MPs collected in the surface waters of the Mediterranean Sea. The chemical composition showed a certain homogeneity at the Mediterranean Sea scale. The main polymers identified by Fourier Transform Infra-Red (FTIR) spectroscopy were poly(ethylene) (67.3 +/- 2.4%), poly(propylene) (20.8 +/- 2.1%) and poly(styrene) (3.0 +/- 0.9%). Nevertheless, discrepancies, confirmed by the literature, were observed at a mesoscale level. Thus, in the North Tyrrhenian Sea, the proportion of poly(ethylene) was significantly lower than the average value of the Mediterranean Sea (57.9 +/- 10.5%). Anthropic sources, rivers, or polymer ageing are assumed to be responsible for the variations observed.
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页数：12
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