Levels of metals, arsenic and phosphorus in sediments from two sectors of a Brazilian Marine Protected Area (Tupinambás Ecological Station)

Mar Pollut Bull. 2015 Feb 28;91(2):403-9. doi: 10.1016/j.marpolbul.2014.10.044. Epub 2014 Nov 15.

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.

Keywords: Background values; Contamination; Geochemistry; Marine Protected Area; Metals; Tupinambás Ecological Station.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arsenic / analysis*
  • Brazil
  • Conservation of Natural Resources / statistics & numerical data
  • Environmental Monitoring / methods
  • Environmental Monitoring / statistics & numerical data*
  • Environmental Pollutants / analysis*
  • Geologic Sediments / chemistry*
  • Metals, Heavy / analysis*
  • Phosphorus

Substances

  • Environmental Pollutants
  • Metals, Heavy
  • Phosphorus
  • Arsenic