Low prevalence of microplastic contamination in the bottom sediments and deep-sea waters of the Bransfield strait, Antarctica

被引：5

作者：

De-la-Torre, Gabriel Enrique ^{[1
]}

Forero López, Ana D. ^{[2
]}

Colombo, Carolina V. ^{[2
,3
]}

Rimondino, Guido N. ^{[3
]}

Malanca, Fabio E. ^{[3
]}

Barahona, Martha ^{[4
]}

Santillán, Luis ^{[1
]}

机构：

[1] Grupo de Investigación de Biodiversidad, Medio Ambiente y Sociedad, Universidad San Ignacio de Loyola, Lima

[2] Instituto Argentino de Oceanografía (IADO), CONICET/UNS, CCT-Bahía Blanca, Camino La Carrindanga, km 7.5, Edificio E1, Bahía Blanca, Buenos Aires

[3] Instituto de Investigaciones en Fisicoquímica de Córdoba (INFIQC), Departamento de Fisicoquímica, Facultad de Ciencias Químicas. Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba

[4] Instituto Oceanográfico y Antártico de la Armada (INOCAR), Guayaquil

来源：

Chemosphere | 2024年 / 364卷

关键词：

Antarctic; Plastic; Sediments; Subsurface; Water column;

D O I：

10.1016/j.chemosphere.2024.143310

中图分类号：

学科分类号：

摘要：

Despite the remoteness of the Antarctic continent and Southern Ocean, microplastic (MPs) contamination has been evidenced in recent years. However, the deep-sea compartments of the Southern Ocean are yet to be investigated. In the present study, we conducted a baseline MP assessment of the deep-sea waters and bottom sediments of the Bransfield Strait, Antarctica. A low abundance of suspected MPs was found. The average MP abundances in bottom sediments and water samples were 0.09 MP/g (range of 0–0.2 MP/g) and 7.00 MP/L (range of 0–16 MP/L), respectively. The majority of the particles were fibers identified as cellulose, although polyethylene terephthalate (PET) and polyacrylonitrile (PAN) was also detected. These results suggest low MP contamination levels in the Southern Ocean's deepest environmental compartments. However, future studies must aim to investigate the smallest MP fractions and, if possible, nanoplastic (<1 μm) contamination in these remote compartments. © 2024 Elsevier Ltd

引用

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