Mercury and organic carbon distribution in six lakes from the North of Rio de Janeiro State

Brazilian Archives of Biology and Technology

Wanderson Primo De Sousa¹  Carlos Eduardo Veiga De Carvalho¹  Claudia Calasans Veiga De Carvalho¹  Marina Satika Suzuki¹ 

[1] ,Universidade Estadual do Norte Fluminense Centro de Biociências e Biotecnologia Laboratório de Ciências AmbientaisCampos dos Goytacazes RJ ,Brazil

关键词: Mercury;    organic carbon;    sediment;    lakes;   

DOI  :  10.1590/S1516-89132004000100019

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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