期刊
MARINE POLLUTION BULLETIN
卷 102, 期 1, 页码 206-209出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2015.11.039
关键词
Mangroves; Trace metals; Core sediments; Northeast coast of Brazil
资金
- Fundacao Cearense de Apoio ao Desenvolvimento Cientifico e Tecnologico (Funcap)
- Projeto Ciencias do Mar [876/2010]
Sediment cores were taken from the mangroves of the Coreau River estuary off the northeast coast of Brazil. They were analyzed for grain size, CaCO3, organic matter, and trace metal (Cd, Pb, Zn, Cu, Al, and Fe) contents. Mud texture was the predominant texture. Levels of trace metals in surface sediments indicated strong influence of anthropogenic processes, and diagenetic processes controlled the trace metal enrichment of core sediments of this estuary. The positive relationships between trace metals and Al and Fe indicate that Cu, Zn, Pb, and Cd concentrations are associated mainly with Al and Fe oxy-hydroxides and have natural sources. (C) 2015 Elsevier Ltd. All rights reserved.
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