B5-CERTH: Realistic estimation of exposure to substances from multiple sources (TAGS)

Description

Exposure to chemical agents originates either from environmental contamination (air, water), or from consumer products (food contact materials, construction materials, cosmetics, clothes, etc.) through multiple routes, namely inhalation, ingestion and dermal contact. Aggregate exposure, i.e. the quantitative exposure assessment to a single agent from all potential exposure pathways (the physical course taken by an agent as it moves from a source to a point of contact with a person) and the related exposure routes, raises specific issues that need to be addressed.

The objective of the project is thus the development of a tiered approach to aggregate exposure assessment and the compilation of a computational platform, able to perform quantitative aggregate exposure assessments for environmental and consumer products following a full chain approach (including emission-migration, media concentrations, exposure and internal dosimetry). The use of biomarkers to verify model predictions, to reconstruct population exposure and allocate to apportion exposure to sources (reverse modeling) will constitute a part of the tiered approach and the accompanying guidance. The tiered approach will guide the user through the preparation of the exposure assessment.