Estudos ecotoxicológicos da água e do sedimento do rio Corumbataí, SP.

Jardim, Glaucia Maria

doi:10.11606/d.91.2005.tde-20062005-172838

Cited by 14 publications

(17 citation statements)

References 10 publications

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“…Since benthic macroinvertebrates combines characteristics of the water and sediment, they are potential indicators of environmental quality of water resources (Chiba et al, 2011). Although not benthic, cladocerans are often in contact with the sediment surface, being exposed to contaminants released from the sediment (Jardim et al, 2008). According to these authors, the use of two test-organism species made it possible to obtain a better assessment of the condition of both water and sediment samples.…”

Section: Introductionmentioning

confidence: 99%

Ecotoxicological evaluation of sediments applied to environmental forensic investigation

Alves

Rietzler

2015

Braz. J. Biol.

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The present study aimed to evaluate the potential for using toxicity assays with sediment samples for the detection of water pollution caused by the discharge of tannery effluents into water bodies and its application to environmental forensic investigation. The study included ecotoxicological evaluation of sediments, survey of benthic organisms in the field, as well as chromium, cadmium and lead dosage which provided data for a sediment quality triad evaluation. The sediment samples showed acute and chronic toxicity to the bioindicators, low biodiversity of benthic macrofauna and high chromium concentration, reaching up to 4365 mg.Kg -1 . A close relationship was observed between the separate results of ecotoxicological sediment evaluation and the sediment quality triad. The sediment ecotoxicological assessment proved to be applicable to tracking sources of contamination related to tanneries and similar activities in environmental forensics.Keywords: environmental forensics, ecotoxicological evaluation of sediments, sediment quality triad, tannery effluents, toxicity of chromium. Avaliação ecotoxicológica de sedimentos aplicada à perícia criminal ambientalResumo O objetivo do presente estudo foi avaliar o potencial de aplicação de ensaios de toxicidade com amostras de sedimento para constatação de poluição aquática causada por lançamentos de efluentes de curtumes em cursos d'água e seu emprego na perícia criminal ambiental. O estudo incluiu avaliação ecotoxicológica de sedimentos, avaliação da fauna bentônica local e dosagem de cromo, cádmio e chumbo que forneceram dados para avaliação da tríade de qualidade dos sedimentos. As amostras de sedimentos mostraram efeito de toxicidade aguda e crônica aos bioindicadores, baixa biodiversidade da macrofauna bentônica e altas concentrações de cromo que chegaram a 4365 mg.Kg -1 . Houve uma estreita relação entre os resultados isolados da avaliação ecotoxicológica e a tríade de qualidade de sedimentos. A avaliação ecotoxicológica demonstrou ser aplicável na identificação de fontes de contaminação relacionadas a curtumes e atividades similares em perícias ambientais.Palavras-chave: perícia ambiental, avaliação ecotoxicológica de sedimentos, tríade de qualidade de sedimentos, efluentes de curtumes, toxicidade do cromo.

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Section: Introductionmentioning

confidence: 99%

Ecotoxicological evaluation of sediments applied to environmental forensic investigation

Alves

Rietzler

2015

Braz. J. Biol.

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“…O aumento da concentração de metais nos ambientes aquáticos está relacionado ao processo de industrialização, e consequentemente ao aumento da densidade populacional ao redor desses ambientes. Atividades industriais e agrícolas geram vários efluentes líquidos, sólidos e gasosos, que contaminam os solos, rios e lagos (Gatti et al, 1999;Jardim et al, 2008).…”

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2010

Ambi-Agua

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This first issue of volume five contains 16 inedited peer reviewed papers from 59 authors that originated from three continents, 25 universities from which 12 are federal universities, 7 are state universities, three are from a municipal university from Brazil and three from abroad. Other four authors are from research institutions. We proudly state that this twelfth edition has been published on time as it happened with all previous issues. Most articles of this issue concentrate on environmental characterization of different ecosystems and on water quality assessment of several river basins. Then, there two articles on water reuse and two on environmental chemistry. The others relate to sediments, water treatment and hydropower impacts investigations.

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“…Atividades industriais e agrícolas geram vários efluentes líquidos, sólidos e gasosos, que contaminam os solos, rios e lagos (Gatti et al, 1999;Jardim et al, 2008).…”

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