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 Influence of exposure scenario on pesticide toxicity in the midge Kiefferulus calligaster (Kieffer)
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/5536

title: Influence of exposure scenario on pesticide toxicity in the midge Kiefferulus calligaster (Kieffer)
authors: Domingues, Inês
Guilhermino, Lúcia
Soares, Amadeu M. V. M.
Nogueira, António J. A.
Monaghan, Kieran A.
keywords: Exposure scenarios
Chironomidae
ChE
GST
Biomarkers
Mortality
Chlorpyrifos
Carbendazim
issue date: 2009
publisher: Elsevier
abstract: In aquatic environments, many factors determine the overall impact of a toxic event, constituting "exposure scenarios" that must be understood so that risk assessment strategies can be successfully applied. In this work, an experimental design was planned to investigate the influence of the organism age, duration of exposure and subsequent recovery period (after cessation of toxic exposure) on chlorpyrifos or carbendazim toxicity to Kiefferulus calligaster. The endpoints studied were cholinesterase (ChE) activity and glutathione S-transferase (GST) activity. The influence of age and exposure time and the existence of recovery depend on the chemical and the biomarkers tested, suggesting that no general rule can be applied when trying to assess overall toxicity of pesticides and that detailed knowledge has to be acquired on a case-to-case basis. (C) 2007 Elsevier Inc. All rights reserved.
URI: http://hdl.handle.net/10773/5536
ISSN: 0147-6513
publisher version/DOI: http://dx.doi.org/10.1016/j.ecoenv.2007.10.009
source: Ecotoxicology and Environmental Safety
appears in collectionsCESAM - Artigos
BIO - Artigos

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