Title: A biology-based dynamic approach for the reconciliation of acute and chronic toxicity tests: Application to Daphnia magna
Authors: ZALDIVAR COMENGES Jose'BARAIBAR FENTANES Joaquin
Citation: CHEMOSPHERE vol. 82 no. 11 p. 1547-1555
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication Year: 2011
JRC Publication N°: JRC59881
ISSN: 0045-6535
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC59881
DOI: 10.1016/j.chemosphere.2010.11.062
Type: Articles in Journals
Abstract: There is the need to integrate existing toxicity data in a coherent framework for extending their domain of applicability as well as their extrapolation potential. This integration would also reduce time and costconsuming aspects of these tests and reduce animal usage. In this work, based on data extracted from literature, we have assessed the advantages that a dynamic biology-toxicant fate coupled model for Daphnia magna could provide when assessing toxicity data, in particular, the possibility to obtain from short-term (acute) toxicity test long-term (chronic) toxicity values taking into account the inherent variability of D. magna populations and the multiple sources of data. The results show that this approach overcomes some of the limitations of existing toxicity tests and that the prediction errors are considerably reduced when compared with the factor from 2 to 5 obtained using acute-to-chronic ratios.
JRC Institute:Institute for Health and Consumer Protection

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