Comparison of two extraction procedures for the assessment of sediment genotoxicity: Implication of polar organic compounds

Giorgio, Carole Di; Malleret, Laure; Gueydon-Morin, Céline; Rigaud, Sylvain; Méo, Michel De

doi:10.1016/j.mrgentox.2011.05.012

Cited by 26 publications

(12 citation statements)

References 43 publications

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“…The presence of potentially toxic species in the river may lead to the release of genotoxic cyanotoxins, thus creating a genotoxicological environment, formed by the mixture of heavy metals, cyanotoxins and other contaminants released by the anthropogenic activities. The aromatic and polycyclic hydrocarbons (PHAs) and organochlorine compounds, although not studied in our present study, are normally released and are frequent in aquatic environments suffering from the human activities from industrial, agricultural and domestic effluents, may also be involved in the cytotoxic and mutagenic effects in the aquatic environment (Di Giorgio et al 2011;Mai et al 2013). Therefore, organisms exposed to this type of environment may fall in difficulty in cell division, suffer by genetic and/or chromosomal mutations at the cellular level, as well as reproductive failure and, consequently, their existence in the aquatic system (Farmer and Singh 2008;Leme and Marin-Morales 2009).…”

Section: Discussionmentioning

confidence: 99%

Pollutants of the Guaribas river water and their toxicogenic effects

et al. 2019

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Tropical rivers used for water supply, irrigation and tourism have effects on anthropic activities. This study aimed to evaluate the presence of different pollutants in the aquatic environment of the Guaribas river water and their possible cytogenotoxic effects. For this, the presence of heavy metals and cyanobacteria along with the possible cytogenotoxic effects in the aquatic environment were evaluated at the city of Picos-PI/Brazil, of its upstream, within and downstream regions. The results suggest that the electrical conductivity, total dissolved oxygen and solids, turbidity, color, chlorine and total phosphorus were above the allowed levels by the country's legislation, especially at the points associated with the main city. Water collected from the within and downstream regions showed a significant cytotoxic and mutagenic effects, regardless of seasons, where a positive correlation was observed between the genetic damage and heavy metal contents. Furthermore, mutagenic cyanotoxins were also found in the samples. These results pointed out that the Guaribas river contains physical and chemical contaminants, and cyanotoxins, that can cause genetic damages, suggesting a bad impact on the aquatic ecosystem, human and other animals directly or indirectly dependent on it. In

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Section: Discussionmentioning

confidence: 99%

Pollutants of the Guaribas river water and their toxicogenic effects

et al. 2019

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“…The degradation observed in the site B3 is particular as it cannot be associated to contamination (low levels in TE and organic contaminants, Di Giorgio et al, 2011) but likely related to the proximity of the hydroelectric channel that release important amount of freshwater and suspended matter. Despite significant decrease of these freshwater amounts in recent years, it still has a very important local effect.…”

Section: Implication Of Sediment Contamination On Benthic Ecosystem Dmentioning

confidence: 99%

How to assess trace elements bioavailability for benthic organisms in lowly to moderately contaminated coastal sediments?

Rigaud

Garnier

Moreau³

et al. 2019

Marine Pollution Bulletin

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“…L'étude de terrain a ainsi révélé une forte contamination des sédiments du marais avec des concentrations élevées de certains métaux : aluminium, cuivre, fer, plomb, zinc, ainsi que d'hydrocarbures aromatiques polycycliques et des concentrations significatives de nickel, chrome et cadmium localement du côté de la zone industrielle 15 . À titre de comparaison, dans les sédiments de l'étang Berre voisin considéré comme très pollué, ces hydrocarbures étaient cependant à des concentrations 100 fois plus élevées 16 .…”

Section: Une Zone Humide Méditerranéenne Enjeu D'usages Multiplesunclassified

Le Marais des Paluns

Barthélémy¹,

Duvernoy²,

Guittonny-Philippe³

et al. 2020

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Les zones humides méditerranéennes sont au coeur de multiples enjeux environnementaux. Les zones humides de la Palun connectées à l'étang de Berre sont une zone spéciale de conservation située à l'aval d'un bassin versant anthropisé. Une contamination diffuse et cumulative dans le temps des sédiments y a été identifiée. C'est dans ce contexte qu'un travail a été mené sur un procédé de traitement des eaux du bassin versant de la Palun pour favoriser la résilience du marais récepteur face à la pollution chronique. Les possibilités de réalisation d'une zone humide artificielle en amont du marais, dédiée à l'épuration des eaux, ont été réfléchies en lien avec les usages et les attentes parfois divergentes des acteurs du territoire. La réparation des atteintes environnementales dans le contexte socio-économique contraint de l'étang de Berre a été interrogée à partir des savoirs issus de l'écologie de la restauration et de la sociologie.

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Comparison of two extraction procedures for the assessment of sediment genotoxicity: Implication of polar organic compounds

Cited by 26 publications

References 43 publications

Pollutants of the Guaribas river water and their toxicogenic effects

Pollutants of the Guaribas river water and their toxicogenic effects

How to assess trace elements bioavailability for benthic organisms in lowly to moderately contaminated coastal sediments?

Le Marais des Paluns

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