2. Material andmethods
2.1. Plastic material
Plastic testmaterialswere chosen according tomost commonly used
andmost abundant polymer types in freshwater systems. PE of lowdensity
(ρ = 0.92 g/ml), PP and PVC were purchased from Sigma-Aldrich.
PA, PES, PET and PUwere derived fromplastic packing materials, pellets
and products. The purity of the materials was given by their certificates
(PE, PVC and PP) and product labels. Any impurity with a plastic