Sediment Microplastic Pollution in Contrasting Estuarine Environments of the Biobío Region South-Central Chile. - Cáceres-González, Belén; Perfetti-Bolaño, Alessandra; Araneda, Alberto; Lardies, Marco A.; Leppes, Nicolás; Barra, Ricardo O. (Environments (2076-3298), 2025)