Influence of exposure scenario on pesticide toxicity in the midge Kiefferulus calligaster (Kieffer)

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Domingues, I (Author) Other; Guilhermino, L. (Author) ICBAS; Soares, AMVM (Author) Other; Nogueira, AJA (Author) Other; Monaghan, KA (Author) Other

Journal

Title: Ecotoxicology and Environmental Safety

Vol. 72

Pages: 450-457

ISSN: 0147-6513

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 7 Citations

Other information

Authenticus ID: P-003-NDB

DOI: 10.1016/j.ecoenv.2007.10.009

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8