title: (210)Polonium and (210)lead content of marine birds from Southeastern Brazil.
abstract: In this study, we report the (210)Po and (210)Pb concentrations of bone, muscle and liver samples that were obtained from twelve different marine bird species stranded on beaches in the central-north region of Rio de Janeiro State. Both radionuclides were highly concentrated in the liver samples; however, the lowest mean (210)Po/(210)Pb activity ratio (1.3) was observed in bones compared with liver and muscle (16.8 and 13.8, respectively). Among the species that were studied, Fregata magnificens, with a diet based exclusively on fish, had the lowest (210)Pb and (210)Po concentrations and the lowest (210)Po/(210)Pb activity ratio. The (210)Po concentrations in Puffinus spp. liver samples followed a log-normal distribution, with a geometric mean of 300 Bq kg(-1)wet weight. Only two references pertaining to (210)Po in marine birds were found in a Web of Science search of the literature, and each study reported a different concentration value. The values determined in this experiment are consistent with those in one of the previous studies, which also included one of the species studied in this work. No values for (210)Pb in marine birds have been published previously.
authors.affiliation: Instituto de Radioproteção e Dosimetria (IRD), Caixa Postal 37750, Barra da Tijuca, 22642-970 Rio de Janeiro, Brazil; Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente 225, 22453-900 Rio de Janeiro, Brazil. Electronic address: jmgodoy@puc-rio.br.
authors.forename: José Marcus
authors.initials: JM
authors.lastname: Godoy
authors.affiliation: Escola Nacional de Saúde Pública, FIOCRUZ, Dept° de Endemias, Grupo de Estudos de Mamíferos Marinhos da Região dos Lagos (GEMM-Lagos), Rua Leopoldo Bulhões, 1480-6° andar, Manguinhos, Rio de Janeiro, RJ 21410-210, Brazil.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Siciliano
authors.affiliation: Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente 225, 22453-900 Rio de Janeiro, Brazil.
authors.forename: Zenildo Lara
authors.initials: ZL
authors.lastname: de Carvalho
authors.affiliation: Universidade Estadual do Norte Fluminense-UENF, CBB, Laboratório de Ciências Ambientais, Campos dos Goytacazes, RJ 28013-602, Brazil.
authors.forename: Davi C
authors.initials: DC
authors.lastname: Tavares
authors.affiliation: Escola Nacional de Saúde Pública, FIOCRUZ, Dept° de Endemias, Grupo de Estudos de Mamíferos Marinhos da Região dos Lagos (GEMM-Lagos), Rua Leopoldo Bulhões, 1480-6° andar, Manguinhos, Rio de Janeiro, RJ 21410-210, Brazil.
authors.forename: Jaílson Fulgencio
authors.initials: JF
authors.lastname: de Moura
authors.affiliation: Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marquês de São Vicente 225, 22453-900 Rio de Janeiro, Brazil.
authors.forename: Maria Luiza D P
authors.initials: ML
authors.lastname: Godoy
mesh_terms: D000818:Animals; D001717:Birds; D001842:Bone and Bones / Q000378:metabolism; D001938:Brazil; D007856:Lead Radioisotopes / Q000378:metabolism*; D008099:Liver / Q000378:metabolism; D009132:Muscles / Q000378:metabolism; D011059:Polonium / Q000378:metabolism*; D011834:Radiation Monitoring
chemical_list: D007856:Lead Radioisotopes; D011059:Polonium
keywords: Brazil; Marine birds; Pb-210; Po-210