Sea surface microplastics in the Galapagos: Grab samples reveal high concentrations of particles <200 μm in size

Grabs reveal four-orders of magnitude greater microplastic abundances than tows. 44 % of microplastic particles in seawater grabs were <200 μm. Plankton tows (mesh size 200 μm) underestimate seawater microplastic concentrations.

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