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Table 1

Characteristics of MPs based on their size and type

AbbreviationTypeSizeDefinitionFigure
PT Pellet <5 mm–1 μm A spherical piece of plastic  
FR Fragment <5 mm–1 μm An irregular shaped piece of plastic  
FB Fiber <5 mm–1 μm A strand or filament of plastic  
FI Film <5 mm–1 μm A thin sheet or membrane-like piece of plastic  
FM Foam <5 mm–1 μm A piece of sponge, foam, or foam-like plastic  
AbbreviationTypeSizeDefinitionFigure
PT Pellet <5 mm–1 μm A spherical piece of plastic  
FR Fragment <5 mm–1 μm An irregular shaped piece of plastic  
FB Fiber <5 mm–1 μm A strand or filament of plastic  
FI Film <5 mm–1 μm A thin sheet or membrane-like piece of plastic  
FM Foam <5 mm–1 μm A piece of sponge, foam, or foam-like plastic  
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