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A large-scale study of microplastic abundance in sediment cores from the UK continental shelf and slope
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Microplastic abundance was surveyed in sediment cores from three areas of the UK continental shelf, establishing a baseline pollution profile across contrasting coastal environments. Concentrations varied considerably by location and depth, with the data providing a foundation for future risk assessments of seafloor contamination.
To inform risk assessments, reliable, time efficient and affordable quantification methods are required for creating a microplastic (MP) pollution baseline in the world's oceans. To facilitate this, MP abundance was investigated in sediments of three contrasting areas of the UK continental shelf: North West of Jones Bank, the Canyons in the Celtic Sea and Dogger Bank in the North Sea, utilising the Nile Red tagging method to assess its time efficiency and cost. Average MP abundance in the top 10 cm was 1050-2700 MP kg-1. MP abundance decreased with increasing sediment depth and increased with increasing water depth. The findings emphasise the extent of MP pollution and illustrate the value of Nile Red for large scale mapping at relatively low cost.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.