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Mar Pollut Bull. 2018 May;130:8-18. doi: 10.1016/j.marpolbul.2018.03.011. Epub 2018 Mar 9.

Microplastics in sub-surface waters of the Arctic Central Basin.

Author information

1
Marine and Freshwater Research Centre, Galway Mayo Institute of Technology, Dublin Road, Galway, Ireland; Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, Plymouth University, Drake Circus, Plymouth, Devon PL4 8AA, United Kingdom. Electronic address: ladaana.kanhai@research.gmit.ie.
2
Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg SE-412 96, Sweden.
3
Marine and Freshwater Research Centre, Galway Mayo Institute of Technology, Dublin Road, Galway, Ireland.
4
Department of Chemistry and Molecular Biology, University of Gothenburg, Göteborg, Sweden.
5
Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, Plymouth University, Drake Circus, Plymouth, Devon PL4 8AA, United Kingdom.

Abstract

Polar oceans, though remote in location, are not immune to the accumulation of plastic debris. The present study, investigated for the first time, the abundance, distribution and composition of microplastics in sub-surface waters of the Arctic Central Basin. Microplastic sampling was carried out using the bow water system of icebreaker Oden (single depth: 8.5 m) and CTD rosette sampler (multiple depths: 8-4369 m). Potential microplastics were isolated and analysed using Fourier Transform Infrared Spectroscopy (FT-IR). Bow water sampling revealed that the median microplastic abundance in near surface waters of the Polar Mixed Layer (PML) was 0.7 particles m-3. Regarding the vertical distribution of microplastics in the ACB, microplastic abundance (particles m-3) in the different water masses was as follows: Polar Mixed Layer (0-375) > Deep and bottom waters (0-104) > Atlantic water (0-95) > Halocline i.e. Atlantic or Pacific (0-83).

KEYWORDS:

Arctic Ocean; Marine debris; Microplastic; Pollution; Sub-surface waters; Water column

PMID:
29866573
DOI:
10.1016/j.marpolbul.2018.03.011
[Indexed for MEDLINE]

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