Composition, Types, and Abundance of Microplastics in Water, Sediments, and Blood Clams (Anadara granosa) in the Coastal Waters of Sinaboi, Rokan Hilir Regency Rahmat Rinaldy ; Bintal Amin ; Syahril Nedi Journal of Coastal and Ocean Sciences 2 Okt 2026 10.31258/jocos.7.2.92-101