Fractional composition of plastic particles after mechanical destruction. Floating PS particles - layer of polystyrene particles floating on solution surface, Sediment 1 - sediment after centrifugation at 100 g, Sediment 2 - sediment after centrifugation at 4000 g, Dispersion 2 - in solution after centrifugation at 4000 g. The diagrams on the right show the distribution of nanoplastics in suspensions after 4000 g centrifugation and filtration. All the plastic that was "erased" from the beaker surface is taken as 100%. Signatures: >1.2 μm - plastic particles which have not passed through the filter 1.2 μm, <0.45 μm - particles have passed through the 0.45 μm filter, and 0.45-1.2 μm - particles have passed through the 1.2 μm filter less <0.45 μm particles.