Polyurethane-Derived Microplastics and Nanoplastics: Sources, Human Exposure, and Toxicological and Health Effects
Polyurethane (PU) is one of the most widely used synthetic polymers, yet polyurethane-derived microplastics and nanoplastics (MNPs) have received less attention than particles derived from polyethylene, polypropylene, or polystyrene. This narrative review summarizes current evidence on the sources, environmental releas...