title: Arsenic and trace metal contents in sediment profiles from the Admiralty Bay, King George Island, Antarctica.
abstract: Admiralty Bay (Antarctica) hosts three scientific stations (Ferraz, Arctowski and Macchu Picchu), which require the use of fossil fuel as an energy source. Fossil fuels are also considered the main source of pollution in the area, representing important inputs of major pollutants (organic compounds) and trace metals and metalloids of environmental interest. Accordingly, this work presents the results of As, Cd, Cr, Cu, Ni, Pb and Zn in sediment profiles from Admiralty Bay. The sediment results from Ferraz station were slightly higher than the other sampling sites. The highest contents were observed for Cu and Zn (from 44 to 89 mg kg(-1)). Otherwise, by using enrichment factors and geochronology analysis, the most relevant enrichment was observed for As in the samples collected close to the Ferraz station, indicating that increasing As content may be associated with the activities associated with this site.
authors.affiliation: Instituto Oceanográfico da Universidade de São Paulo, Praça do Oceanográfico, 191, 05508-120 São Paulo - SP, Brazil. andrezpr@usp.br
authors.forename: Andreza P
authors.initials: AP
authors.lastname: Ribeiro
authors.forename: Rubens C L
authors.initials: RC
authors.lastname: Figueira
authors.forename: César C
authors.initials: CC
authors.lastname: Martins
authors.forename: Charles R A
authors.initials: CR
authors.lastname: Silva
authors.forename: Elvis J
authors.initials: EJ
authors.lastname: França
authors.forename: Márcia C
authors.initials: MC
authors.lastname: Bícego
authors.forename: Michel M
authors.initials: MM
authors.lastname: Mahiques
authors.forename: Rosalinda C
authors.initials: RC
authors.lastname: Montone
mesh_terms: D000864:Antarctic Regions; D001151:Arsenic / Q000032:analysis*; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry*; D008670:Metals / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D008670:Metals; D014874:Water Pollutants, Chemical; D001151:Arsenic