title: Assessment of essential elements and chemical contaminants in thirteen fish species from the Bay Aratu, Bahia, Brasil.
abstract: Concentrations of ten elements (Cd, Cr, Cu, Fe, Ni, Pb, Se, Sr, V and Zn) were determinate in muscle tissues of 13 fish species from Aratu Bay, Bahia, Brazil by inductively coupled plasma optical emission spectrometry. The accuracy and precision of our results were checked by using two certified reference materials: BCR-422 cod muscle and SRM 1566b oyster tissue. The average trace element concentrations in the fish species varied in the following ranges, in μg g-1: 0.03-0.8 for Cr; 2.0-33.7 for Cu, 2.4-135.1 for Fe, 1.6-25.6 for Se; 1.6-35.1 for Sr; and 2.8-40.5 for Zn. The Diaptereus rhombeus (carapeba) specie presented the highest concentrations of Se, Cu and Fe. Chromium and Se were present at levels above the limit of tolerance allowed by the National Agency of Sanitary Vigilance (ANVISA). The results were also evaluated using the multivariate analysis techniques: principal component analysis (PCA) and hierarchical cluster analysis (HCA).
authors.affiliation: Unidade Acadêmica de Ciências Biológicas, Universidade Federal de Campina Grande - UFCG, Av. Universitária, s/n, CP 61, CEP 58708-110, Patos, PB, Brazil.
authors.forename: E
authors.initials: E
authors.lastname: Silva
authors.affiliation: Instituto de Ciências da Saúde, Universidade Federal da Bahia - UFBA, Av. Reitor Miguel Calmon, s/n, Vale do Canela, CEP 40110-100, Salvador, BA, Brazil.
authors.forename: Z C V
authors.initials: ZC
authors.lastname: Viana
authors.affiliation: Instituto de Geociências, Universidade Federal da Bahia - UFBA, Rua Barão de Jeremoabo, s/n, Ondina, CEP 40170-120, Salvador, BA, Brazil.
authors.forename: N F A
authors.initials: NF
authors.lastname: Souza
authors.affiliation: Instituto de Química, Universidade Federal da Bahia - UFBA, Rua Barão de Jeremoabo, s/n, Ondina, CEP 40170-115, Salvador, Bahia, Brazil.
authors.forename: M G A
authors.initials: MG
authors.lastname: Korn
authors.affiliation: Instituto de Química, Universidade Federal da Bahia - UFBA, Rua Barão de Jeremoabo, s/n, Ondina, CEP 40170-115, Salvador, Bahia, Brazil.
authors.forename: V L C S
authors.initials: VL
authors.lastname: Santos
mesh_terms: D000818:Animals; D061006:Bays; D001938:Brazil; D016000:Cluster Analysis; D005399:Fishes; D005506:Food Contamination; D008670:Metals / Q000032:analysis; D009132:Muscles / Q000737:chemistry; D025341:Principal Component Analysis; D017747:Seafood / Q000032:analysis*; D014131:Trace Elements / Q000032:analysis*
chemical_list: D008670:Metals; D014131:Trace Elements