Evaluation of sediment quality - case study: sub-watershed of Espírito Santo stream, affluent of the S?o Francisco river

Comiss?o Nacional de Energia Nuclear Belo Horizonte Brasil; Comiss?o Nacional de Energia Nuclear Po?os de Caldas Brasil; Instituto Mineiro de Gest?o das águas Belo Horizonte Brasil; Jacomino Vanusa Maria Feliciano; Nascimento Marcos Roberto Lopes do; Palmieri Helena Eugênia Leonhardt; Saraiva Vanessa Kelly

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Evaluation of sediment quality - case study: sub-watershed of Espírito Santo stream, affluent of the S?o Francisco river

机译：沉积物质量评估-案例研究：圣弗朗西斯科河的富裕地区圣埃斯皮里图河小流域

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This study evaluated the environmental impact resulting from surface water and sediment contamination by metals in a watershed affected by a tailing basin that controls effluents coming from a zinc-ore beneficiation plant. The studies combined assessments of sediment chemistry (exceedances of sediment quality guidelines), benthic assemblage structure and acute and chronic ecotoxicity. The results showed that the levels of metal contamination in sediments are not yet enough to cause deleterious effects to the biota. However, the ecotoxicity tests indicated the occurrence of chronic effects, demonstrating that other factors, as the use of fertilizers, could also be a source of contamination.

机译：这项研究评估了受尾矿池影响的流域中地表水和金属对沉积物的污染对环境的影响，尾矿池控制着锌矿选矿厂的废水。这项研究结合了对沉积物化学（超过沉积物质量准则），底栖组合结构以及急性和慢性生态毒性的评估。结果表明，沉积物中金属污染的程度还不足以对生物群造成有害影响。然而，生态毒性测试表明发生了慢性影响，表明使用化肥等其他因素也可能是污染源。

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《Quimica nova》 |2009年第8期|共页
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Comiss?o Nacional de Energia Nuclear Belo Horizonte Brasil; Comiss?o Nacional de Energia Nuclear Po?os de Caldas Brasil; Instituto Mineiro de Gest?o das águas Belo Horizonte Brasil; Jacomino Vanusa Maria Feliciano; Nascimento Marcos Roberto Lopes do; Palmieri Helena Eugênia Leonhardt; Saraiva Vanessa Kelly;
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7. Avaliação da qualidade de sedimentos - estudo de caso: sub-bacia do Ribeirão Espírito Santo, afluente do Rio São Francisco Evaluation of sediment quality - case study: sub-watershed of Espírito Santo stream, affluent of the São Francisco river [O] . Vanessa Kelly Saraiva, Marcos Roberto Lopes do Nascimento, Helena Eugênia Leonhardt Palmieri, 2009

机译：沉积物质量评估 - 案例研究：RibeirãoEspíritosanto子流域，圣弗朗西斯科河支流沉积物质量评估 - 案例研究：Espíritosanto溪流的子流域，圣弗朗西斯科河的富裕阶段

Evaluation of sediment quality - case study: sub-watershed of Espírito Santo stream, affluent of the S?o Francisco river

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