Nationwide characterization of microplastics in sewage sludge as a baseline for sludge quality assessment and valorization planning.
Wastewater treatment plants (WWTPs) are recognized as major sinks for microplastics (MPs), transferring a substantial proportion of particles from wastewater to sewage sludge. However, nationwide assessments of MP contamination in sewage sludge remain scarce. This study investigated the occurrence, characteristics, div...