title: Levels of metals, arsenic and phosphorus in sediments from two sectors of a Brazilian Marine Protected Area (Tupinambás Ecological Station).
abstract: The Tupinambás Ecological Station (TES) is a Marine Protected Area consisting of two sectors: the Archipelago of Alcatrazes and the Cabras and Palmas islets. This investigation aimed to provide a first diagnosis of the concentrations of metals (Al,Cr,Cu,Fe,Hg,Ni,Pb,Zn), As and P in sediments from the TES. 24 sediment samples were collected in both sectors using a Van Veen grab sampler. Sediment textures and levels of Organic Matter (OM) and CaCO3 were determined, as well as the concentrations of the above-mentioned elements after partial acid digestion. Sediments were predominantly sandy. Higher levels of CaCO3 occurred in the Alcatrazes sector, whereas the OM contents were higher in the islets sector. Metals concentrations were low and associated with fines, while P and As presented a different behavior. The observed concentrations to all studies elements in sediments from the TES were considered as background values.
authors.affiliation: Universidade de São Paulo, Instituto Oceanográfico, Praça do Oceanográfico, 191, São Paulo, São Paulo 05508-120, Brazil.
authors.forename: Natasha T
authors.initials: NT
authors.lastname: Hoff
authors.affiliation: Universidade de São Paulo, Instituto Oceanográfico, Praça do Oceanográfico, 191, São Paulo, São Paulo 05508-120, Brazil.
authors.forename: Rubens C L
authors.initials: RC
authors.lastname: Figueira
authors.affiliation: Universidade Estadual Paulista - Campus Experimental do Litoral Paulista, Núcleo de Estudos sobre Poluição e Ecotoxicologia Aquática (NEPEA), Praça Infante Dom Henrique, s/n, São Vicente, São Paulo 11330-900, Brazil.
authors.forename: Denis M S
authors.initials: DM
authors.lastname: Abessa
mesh_terms: D001151:Arsenic / Q000032:analysis*; D001938:Brazil; D003247:Conservation of Natural Resources / Q000706:statistics & numerical data; D004784:Environmental Monitoring / Q000379:methods / Q000706:statistics & numerical data*; D004785:Environmental Pollutants / Q000032:analysis*; D019015:Geologic Sediments / Q000737:chemistry*; D019216:Metals, Heavy / Q000032:analysis*; D010758:Phosphorus
chemical_list: D004785:Environmental Pollutants; D019216:Metals, Heavy; D010758:Phosphorus; D001151:Arsenic
keywords: Background values; Contamination; Geochemistry; Marine Protected Area; Metals; Tupinambás Ecological Station