Figure 4
From: Occurence of microplastics in the hyporheic zone of rivers
(A) MPs-abundances (per kg dry weight) for the different particle size fraction of the sediment core was analyzed down to 20 µm. Corresponding dry weights of the sub-samples are presented in the Supplementary Material. Particles below 50 µm are considered as pore scale and sub-pore scale MPs (for color code see B). (B) Material and shape composition for the different particle size fractions. Figures 3 and 4 present data obtained from the same freeze core. MP abundances were extrapolated to the dry weights of the samples. (PE = polyethylene, PP = polypropylene, PS = polystyrene, PET = polyethylene therephthalat, PBT = polybutylene terephthalate, PC = polycarbonate, PAN = polyacrylonitrile, PVC = polyvinyl chloride).
