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- W1009681738 abstract "Juturnaíba Lake has been utilized for the captation of water to supply over one million people in the Lakes Region, Rio de Janeiro, Brazil. The water treatment plant sludges have been directly disposed in the margins of the lake, constituting a potential threat for the water quality. The aim of the present work was to evaluate the geochemical processes that control concentrations and mobility of metals (Al, Cu, Fe, Mn, Pb and Zn) in the sediments of the Juturnaíba Reservoir, and whether they are affected by the disposal of the water treatment sludges. Sediment samples were collected from thirty-two stations in the Juturnaíba lake, and the total concentration of metals (pseudo-total concentrations), granulometry, total organic carbon, total nitrogen and total phosphorus concentrations were evaluated. Distribution maps and attenuation models were constructed. The results show that the metals concentrations are affected by the presence of large stands of the aquatic macrophyte Egeria sp. (Hydrocharitaceae). The sludges from the water treatment plants do not seem to contribute to the contamination of the sediments, probably because the mobility of the contaminants in the dumping piles is low." @default.
- W1009681738 created "2016-06-24" @default.
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- W1009681738 date "2015-11-01" @default.
- W1009681738 modified "2023-10-18" @default.
- W1009681738 title "Distribution of heavy metals in sediments of a tropical reservoir in Brazil: Sources and fate" @default.
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- W1009681738 doi "https://doi.org/10.1016/j.jsames.2015.07.014" @default.
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