Microplastics in sea ice and seawater beneath ice floes from the Arctic Ocean
Artikel i vetenskaplig tidskrift, 2020

Within the past decade, an alarm was raised about microplastics in the remote and seemingly pristine Arctic Ocean. To gain further insight about the issue, microplastic abundance, distribution and composition in sea ice cores (n = 25) and waters underlying ice floes (n = 22) were assessed in the Arctic Central Basin (ACB). Potential microplastics were visually isolated and subsequently analysed using Fourier Transform Infrared (FT-IR) Spectroscopy. Microplastic abundance in surface waters underlying ice floes (0-18 particles m-3) were orders of magnitude lower than microplastic concentrations in sea ice cores (2-17 particles L-1). No consistent pattern was apparent in the vertical distribution of microplastics within sea ice cores. Backward drift trajectories estimated that cores possibly originated from the Siberian shelves, western Arctic and central Arctic. Knowledge about microplastics in environmental compartments of the Arctic Ocean is important in assessing the potential threats posed by microplastics to polar organisms.

Författare

La Daana K. Kanhai

Galway-Mayo Institute of Technology (GMIT)

University of Plymouth

Katarina Gårdfeldt

Chalmers, Kemi och kemiteknik, Energi och material, Oorganisk miljökemi 2

Thomas Krumpen

Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung (AWI)

Richard C. Thompson

University of Plymouth

Ian O'Connor

Galway-Mayo Institute of Technology (GMIT)

Scientific Reports

2045-2322 (ISSN)

Vol. 10 1 5004-

Ämneskategorier

Meteorologi och atmosfärforskning

Geologi

Multidisciplinär geovetenskap

DOI

10.1038/s41598-020-61948-6

PubMed

32193433

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Senast uppdaterat

2020-04-09