Under a strict protocol, Mauritius’s crew uses a custom fabricated net whose cod-end consists of a removable mesh pocket. Samples obtained are preserved with 50% or coarse salt and sent back to Switzerland for analysis.
Oceaneye’s experts separate organic elements from plastic particles, sort the latter according to their size and type: fragments, thin films, threads, foams and pellets, and evaluate the concentrations of microplastics by region.
Then, using spectrometry, experts can determine the chemical composition of each element, an important clue to establish the origin of the plastic.
Hundreds of samples of surface water will be collected during the Arctic Ocean Expedition. They will provide a unique record as they deliver their results.