Microplastics in Urban Bird Feces: A Methodological Approach and Case Study in Mexico City. - Vazquez-Cruz, Victoria Amellalli; Vázquez-Morillas, Alethia; Cruz-Salas, Arely Areanely; Hernández-Soriano, Ana Isabel; Cervantes-Cabrera, Getsemaní; Ballesteros-López, Mariana Elizabeth; Alvarez-Zeferino, Juan Carlos (Microplastics, 2025)