Hg, Cd, As, and Pb in surface sediments from the tropical coastal lagoon Estero Salado, Gulf of Guayaquil-Ecuador - Ormaza-González, Franklin I.; Castro-Rendón, Rubén D.; Maridueña-Bravo, Ana; Bobadilla-Cordova, Nayiva; Ramos-Castañeda, Ivanna; Statham, Peter J. (Frontiers in Marine Science, 2024)