Trace Metals Concentrations in Mangrove Sediments of Sepetiba Bay (Rio de Janeiro, Brazil): Microwave Assisted Digestion with Nitric Acid and Aqua Regia
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چکیده
منابع مشابه
Trace Metal Contamination in Mangrove Sediments, Guanabara Bay, Rio de Janeiro, Brazil
A Baía de Guanabara no Rio de Janeiro tem sofrido profundas alterações ambientais. O aumento da concentração de metais-traço em seus sedimentos está entre as alterações mais relevantes. O objetivo deste trabalho foi verificar a contaminação por metais-traço e avaliar a disponibilidade em sedimentos de áreas de manguezais (Surui, Nova Orleans e Piedade). Concentrações de Cd, Zn, Pb, Ni, Cu e Al ...
متن کاملLeaf damage in a mangrove swamp at Sepetiba Bay, Rio de Janeiro, Brazil
(Leaf damage in a mangrove swamp at Sepetiba Bay, Rio de Janeiro, Brazil). Leaf damage to Rhizophora mangle L., Avicennia schaueriana Stapf. & Leechman, and Laguncularia racemosa L. was studied in a two hectare mangrove swamp site in Sepetiba Bay. Seventeen arthropod morphospecies were identifi ed as being responsible for the damage, and their species diversity was highest on A. schaueriana, fo...
متن کاملAssessment of heavy metals in Egretta thula: case study: Coroa Grande mangrove, Sepetiba Bay, Rio de Janeiro, Brazil.
This study focuses on metals analysis in kidney and liver tissues of Egretta thula which were collected prostrate or newly dead in Coroa Grande mangrove, Sepetiba Bay, Rio de Janeiro, Brazil, between March 2005 and October 2008. Kidney and liver were collected and analysed to evaluate heavy metal pollution. High values and widest range were detected for all metals in liver and kidney tissues. G...
متن کاملTrace element residues in water, sediments, and organs of Savacu (Nycticorax nycticorax) from Sepetiba Bay, Rio de Janeiro, Brazil
Heavy metal (Cr, Cd, Zn, Cu, Ni, Pb) concentrations in water, sediment and organs of Savacu, Nycticorax nycticorax were analyzed. Samples of water and sediment were collected from seven stations along Sepetiba Bay, and experimental animals, also were collected in the study area. This bay receives effluents discharges from heavily industrialized and highly populated settlements. Samples of water...
متن کاملESTIMATION OF HEAVY METALS IN LITTLE BLUE HERON (Egretta caerulea) COLLECTED FROM SEPETIBA BAY, RIO DE JANEIRO, BRAZIL
Samples of liver and kidney of Little Blue Heron (Egretta caerulea) collected on Sepetiba Bay, Rio de Janeiro, Brazil, were analysed for their copper, zinc, cadmium, lead, chromium and nickel content. Mean concentration levels in liver and kidney (μg.g dry weight) were 6.32955 and 6.57136 (Cd); 78.17409 and 96.89409 (Zn); 44.01727 and 65.20864 (Cu); 41.15091 and 39.62318 (Pb); 2.80091 and 4.164...
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ژورنال
عنوان ژورنال: Revista Virtual de Química
سال: 2012
ISSN: 1984-6835
DOI: 10.5935/1984-6835.20120035