Browsing by Subject "Sedimento"
Now showing items 1-8 of 8
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Avaliação da relação entre indicadores microbiológicos de toxicidade e a biodisponibilidade de metais em um ecossistema costeira (Baía de Sepetiba-RJ)
| Posted on: 25 fev. 2011The possible relations between metal bioavailable forms and microbiological indicartors of toxicity are currently poorly understood. This study aims to evaluate the relationship between geochemical and microbiological ... -
COMPORTAMENTO DO MERCÚRIO EM LAGOAS COSTEIRAS URBANAS: DAS MUDANÇAS PALEOAMBIENTAIS AO BALANÇO DE MASSA (ESTUDO DE CASO: LAGOA RODRIGO DE FREITAS)
| Posted on: 22 jan. 2010This study is quantified the main mercury fluxes to Rodrigo de Freitas Lagoon (RJ), evaluating the concentrations of this element in the sediment (surface and corer), water (in Lagoon, a canal to the sea, the river that ... -
Comportamento Geoquímico do Iodo em Manguezal de Itacuruça-RJ
| Posted on: 05 jul. 2004This study used radiotracers to investigate the iodine speciation in mangrove waters in incubation experiments in laboratory, on which the role of biological and chemical processes were evaluated. After 61 days of incubation, ... -
DISTRIBUIÇÃO E CARACTERIZAÇÃO DA MATÉRIA ORGÂNICA EM SEDIMENTOS SUPERFICIAIS, BACIA DE CAMPOS-RJ: BIOMARCADOR LIGNINA
| Posted on: 28 fev. 2013The Campos basin is the largest domestic oil producer, located in the southeastern portion of Brazil (20-24 ° S, 39-42 ° W) is bounded on the north by the Espirito Santo basin and south by the arc of Cabo Frio. The basin ... -
Distribuição mineralógica dos sedimentos superficiais da lagoa do Caçó (MA)
| Posted on: 01 out. 2004Mineralogical fraction is important to the reconstruction of environmental and paleoenvironmental changes from lacustrine sediments. Allochtonous and Autochtonous inorganic fractions provide information about the evolution ... -
Evolução dos aportes de metais pesados na Lagoa Rodrigues de Freitas, RJ
| Posted on: 21 fev. 2006This work discusses the temporal variation of the heavy metals concentrations in a hypertrophic coastal lagoon located in the south zone of Rio de Janeiro municipality. The Rodrigo de Freitas Lagoon watershed includes a ... -
Evolução sedimentológica e paleoecológica da plataforma carbonática do parcel dos Abrolhos, Bahia, Brasil
| Posted on: 03 mar. 2009The Complex Reef of Abrolhos , located in the State of Bahia, Brazil, is the most important coral reef ecosystem of the South Atlantic due to its great biodiversity and importance for carbonate and biogenic sediment ... -
Histórico da contaminação em sedimentos do estuário do Rio Morrão (Cubatão-SP)
| Posted on: 23 fev. 2011This study determined Hg, Ag, Al, Ca, Cd, Co, Fe, K, Li, Mn, P, Pb e Zn concentrations in a sediment core of the Morrão River, located at Santos-Cubatão Estuarine System, which is one of the most industrialized areas in ...