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Mercury and organic carbon distribution in six lakes from the North of Rio de Janeiro State BABT
Sousa,Wanderson Primo de; Carvalho,Carlos Eduardo Veiga de; Carvalho,Claudia Calasans Veiga de; Suzuki,Marina Satika.
The objectives of the study was to evaluate the mercury contamination in sediments of six lagoons located in the north region of Rio de Janeiro State, trying to relate the Hg concentrations with factors that could influence it's mobility, such as organic carbon. The highest values observed in the superficial sediments in lakes like Campelo (349,6 µg.kg -1) suggested a recent Hg input into the system. The correlation Hg/Organic carbon was positive for most areas, indicating that the organic carbon was a significant parameter for Hg retention in this region. The obtained results suggested that the mercury used as fungicide in agriculture lands and in gold mining areas in the past were probably responsible for the contamination of this environment.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mercury; Organic carbon; Sediment; Lakes.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000100019
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