Journal
MARINE POLLUTION BULLETIN
Volume 149, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2019.110618
Keywords
Microplastic; Pollution; Bottom sediment; Marine water
Funding
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)
- Universidad Nacional del Sur [PGI 24/ZQ12, PGI 24/ZB83]
- Agencia Nacional de Promocion Cientifica y Tecnologica [Prestamo BID PICT 2015-0709, Prestamo BID PICT 2016-0540]
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In this work, samples were collected from the Argentinean continental shelf -including a Marine Protected Area (MPA) - to assess the occurrence and distribution of synthetic microfibers (MFs), a widespread type of microplastic. MFs were present at 100% of the samples showing an average concentration of 182.85 +/- 115.14 particles per Kg of dry sediment and 0.14 +/- 0.08 items per m(3) of marine water. MFs less than 1 mm were the most abundant (56.4% and 63%, for sediment and surface seawater respectively), followed by 1-2 mm and then 2-3 mm. In regards to the colour, both sediments and water had the major percentage of black MFs (25.6% and 28%, respectively) and the lowest one of green MFs (2.5% and 3%, respectively). Finally, MFs content in sediments was inversely correlated with depth (r = -0.93, p < 0.05). These findings provide the first evidence of microplastic contamination at the Argentinean continental shelf.
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