Tools for assessing availability and exposure in a multiple contaminant context: the scientific basis and associated tools to assess radionuclide availability and exposure under multiple contaminant conditions

This document is the final Deliverable for the second task. The goals of this task were (i) to test and improve selected ecotoxicological approaches and tools for reliable radionuclide (bio)availability and exposure assessment under mixed contaminant conditions, and (ii) improve the understanding of underlying mechanisms and processes. The work mobilised the existing collective experience of the partner institutions in the development (NERC) and application (NERC, SCK•CEN, IRSN) of speciation modelling tools and for experimentation using the test organisms Lemna minor (SCK•CEN with assistance from STUK and BfS), Salmo salar (NMBU) and Daphnia magna (IRSN). Adoption of common approaches to experimental design and data treatment, coupled with exchange of knowledge and expertise among the partners, was intended to drive integration among the STAR partners and to collectively derive datasets and tools that can be viewed in an integrated manner across the tested organisms.