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Assessment of mercury concentration in turtles (Podocnemis unifilis) in the Xingu river basin, Brazil

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2018
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Assessment of mercury concentration in turtles (Podocnemis unifilis) in the Xingu river basin, Brazil.pdf (1.537xmlui.dri2xhtml.METS-1.0.size-megabytes)
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http://patua.iec.gov.br//handle/iec/3181
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Pignati, Marina Teófilo
Pezzuti, Juarez Carlos Brito
Souza, Larissa Costa de
Lima, Marcelo de Oliveira
Pignati, Wanderlei Antonio
Mendes, Rosivaldo de Alcântara
xmlui.dri2xhtml.METS-1.0.item-abstract
Abstract: Many studies on mercury contamination in aquatic biota deal with the effect of consuming metal-contaminated organisms on human health. In this study, we examined the factors that cause mercury contamination in Podocnemis unifilis in the Xingu River Basin of Mato Grosso and Pará States, Brazil. We quantified by atomic absorption spectroscopy with cold vapor the total mercury (THg) content in the liver and muscle samples of 50 Podocnemis unifilis specimens collected from the basin. The liver and muscle samples contained 134.20 ± 119.30 ng g−1 THg and 24.86 ± 26.36 ng g−1 THg, respectively. Each chelonian or meal has, on average, 5.34× more Hg than the highest level established as acceptable. From the results it can be inferred that, given the weekly consumption of chelonians, the riverine and indigenous communities in the Xingu River Basin are at risk of chronic consumption of Hg in amounts beyond the acceptable limit. The potential high risk to the health of this population is evident; however, the risk classification needs to be further studied
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PIGNATI, Marina Teófilo et al. Assessment of mercury concentration in turtles (Podocnemis unifilis) in the Xingu river basin, Brazil. International Journal of Environmental Research and Public Health, v. 15, n. 6, p. 1-11, June 2018.
xmlui.dri2xhtml.METS-1.0.item-decsPrimary
Mercúrio / toxicidade
Intoxicação por Mercúrio / microbiologia
Poluição de Rios / análise
Hepatócitos / análise
Monitoramento Ambiental
Tartarugas / metabolismo
Região Norte (BR)
Rio Xingu (PA)
Bacia do Rio Xingu
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Acesso Aberto
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  • SAMAM - Artigos Científicos

Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br
 

 

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Instituto Evandro Chagas - SVS - MS - 2007-2018 Rodovia BR316 km 7 sn - Levilandia - 67030-000 - Ananindeua - Para - Brasil.
Licença Creative CommonsEste trabalho está licenciado com uma Licença Creative Commons - Atribuição-NãoComercial 4.0 Internacional
Tel: (55 91) 3214-2191
Email: biblioteca@iec.gov.br / clariceneta@iec.gov.br