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Sediment toxicity tests: tools for environmental quality

AuthorsBlasco, Julián ; Campana, Olivia ; Araújo, Cristiano V. M. ; Rodríguez-Romero, Araceli ; Moreno-Garrido, Ignacio
Issue DateJul-2015
Citation10th Iberian Congress on Environmental Contamination and Toxicology (2015)
7th Iberoamerican Congress on Environmental Contamination and Toxicology (2015)
AbstractSediments represent the main sink for pollutants and depending on environmental conditions they can be a source of contaminants to water column. On the other hand, sediments are a component of aquatic ecosystems providing feeding, rearing and spawning areas for multitude of organisms. To establish the quality of sediments and the behavior of contaminants is a challenge for assessing environmental quality and the health of ecosystems. Sediment toxicity testing and bioassays have been defined in restrictive way and they can be applied using different approaches (e.g. evaluate the effect of the contaminants after spiking to artificial or natural sediments or evaluate the effect of the environmental contamination collecting sediments from the field). In both cases, the objective is getting a deeper insight into the biological effects of spiked contaminants or pollutant mixture, respectively. In this presentation both approaches will be considered under the umbrella of sediment toxicity testing. The use of uncommon species (phytobenthos), behavioral response, the effect of geochemical properties to biological responses, the development of sediment quality guidelines and the employment of sediment toxicity tests for assessing the acidification process on metal mobilization have been examined. In summary, sediment toxicity testing is an essential tool to establish the environmental quality of ecosystems and to define strategies for their management in a sustainable way.
DescriptionTrabajo presentado en el 10th Iberian Congress on Environmental Contamination and Toxicology y el 7th Iberoamerican Congress on Environmental Contamination and Toxicology (CICTA 2015), celebrados en Vila Real (Portugal) del 14 al 17 de julio de 2015.
Appears in Collections:(ICMAN) Comunicaciones congresos
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