Objective A key challenge facing environmental risk assessors is the need to assess the risk of thousands of chemicals, for a wide range of species, with increased accuracy and ecological relevance, while using fewer resources and experimental animals. Traditional external toxicity metrics, such as the lethal aqueous concentration (LC50), are not sufficiently sophisticated to accomplish this task, and “new” approaches are emerging. This includes the tissue residue approach (TRA), which is advocated as a powerful tool to aid and improve ecological risk assessment. Claimed advantages include, a.o. a likely reduction in use of experimental animals, an improved ability to address mixture toxicity, and an improved ability to link laboratory measurements of exposure and effects to the field. Nevertheless, the application of the tissue-residue approach remains limited. This is mainly because internal target site concentrations are difficult to measure. Mechanistic models that enable the conversion of existing external effect data to critical target concentrations are therefore urgently needed. At present, such in silico tools are well-established for persistent organic chemicals acting via polar or non-polar narcosis. Reliable mechanistic models are however scarce for other modes of action. Therefore, we propose to develop mechanistic models that can reliably predict critical target residues from external effect concentrations for other chemicals, including reactive organic chemicals and metals. Programme(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) FP7-PEOPLE-2010-IEF - Marie-Curie Action: "Intra-European fellowships for career development" Call for proposal FP7-PEOPLE-2010-IEF See other projects for this call Funding Scheme MC-IEF - Intra-European Fellowships (IEF) Coordinator STICHTING RADBOUD UNIVERSITEIT Address Houtlaan 4 6525 XZ Nijmegen Netherlands See on map Region Oost-Nederland Gelderland Arnhem/Nijmegen Activity type Higher or Secondary Education Establishments Administrative Contact Sabine Vernooij (Ms.) Links Contact the organisation Opens in new window Website Opens in new window EU contribution No data
