TY JOUR TI Microplastics in Russian Freshwater Systems: a Review KW Microplastics KW contamination KW plastic production KW plastic waste KW microfiber KW river KW lake KW Russia JO Russian Journal of Earth Sciences AU Filimonova, E.A. AU Preobrazhenskaya, A.E. AU Gutnikova, L.A. PY 2024 IS 24 PB Geophysical Center of the Russian Academy of Sciences