ECO43: Improving sediment toxicity testing design and data interpretation for very hydrophobic substances
The general objective of the proposed research is to improve sediment toxicity testing design, performance, and data interpretation for VHOCs and to develop guidance in order to maximize realism and value of future testing and thereby to support product and […]
ECO41: Enhanced Screening Methods to Determine Bioaccumulation Potential of Chemicals in Air-Breathing Species
This project plans to develop an approach for assessing bioaccumulation of neutral hydrophobic organic chemicals in air-breathing species based on physical chemical properties (i.e. KOW and KOA) and in-vitro biotransformation bioassay data using mammalian liver S9 in vitro bioassays.
ECO45: Chemicals – Assessment of Risks to Ecosystem Services (CARES) II
This project aims to evaluate the practical applicability of an ecosystem services approach to prospective and retrospective chemical risk assessment.
ECO38: Cross-validation for improving determinations of water solubility for difficult to test substances
Water solubility is a fundamental parameter for the environmental risk assessment of organic chemicals. It is critical for understanding and predicting the environmental fate of substances, and also has relevance for their effect assessment. While water solubility is relatively easy […]
ECO40: Investigations on the bioconcentrations of xenobiotics in the freshwater amphipod Hyalella Azteca and inter-laboratory comparison of a new BCF test protocol.
The identification and scientific assessment of compounds that bioaccumulate in organisms and biomagnify in food webs are important aspects in the regulation of chemicals in several jurisdictions, such as Regulation (EC) No 1107/2009, the Regulation on classification, labelling and packaging […]
ECO39 & 39.2: Review, ring-test and guidance for TKTD modelling
Stressors, such as toxicants, can cause mortality among organisms. Interestingly, not all individuals will die at the same time in the same exposure treatment, and the number of deaths will change with exposure time. The pattern of mortality will also […]
AIMT7: RVis – Open Access PBPK Modelling Platform
The objective of this project is to further develop RVis, a prototype application for the analysis of structure and performance of physiologically based pharmacokinetic (PBPK), and other models, written in the free, open source syntax R or C++. The overall […]
ECO37: D-BASS – Developing a Bioaccumulation Assessment Strategy for Surfactants
The general objective of this proposed research is therefore to validate the combined use of (a) measured partition coefficients, (b) in vitro intrinsic hepatic clearance rates, and (c) a recently improved bioaccumulation model for ionogenic compounds, against measured bioconcentration factors […]
ARC3: Development of The Bioaccumulation Assessment Tool (BAT Ver.1.0) to Aid in the Bioaccumulation Assessment of Organic Chemicals
This project aims to develop a user-friendly organizational framework and computational tool in the form of an Excel spreadsheet for integrating various lines of evidence in a quantitative weight of evidence (QWOE) approach to aid regulatory decision-making for bioaccumulation assessment.
ECO36: Paving the way for QIVIVE – from nominal to free to cellular concentrations in in vitro assays
The objective of this project is to bundle existing expertise to progress exposure assessment in in vitro bioassays used for high-throughput screening (HTS) in 384- and 1536-well plates and complex in vitro bioassays based on transwell and 3D cultures.