Persistence / Biodegradation: Persistence Assessment Tool with Concawe, Cefic LRI, ECETOC
Objective
Development of a software tool to facilitate the regulatory persistence assessment, including:
- Clear guidance and structure for evaluation of data quality
- Quantitative WoE (qWoE) methodology
- 'Overall persistence’ (Pov) module
- Customization to make the tool globally applicable
- Account for difficult and complex (UVCB) substances
Project Details
Persistence and Biodegradation Working Group
Project Lead:
- Arnaud Boivin, L'Oréal
Collaborators:
- Cefic LRI
- Concawe
- ECETOC
TOOLBOX
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Persistence Assessment Tool
The tool provides a structured and clear methodology to:
- Systematically capture and store information on persistence
- Evaluate data quality
- Carry out a robust and transparent weight of evidence determination
- Assess persistence in line with global regulatory frameworks
Persistence Assessment Tool
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PAT Training Session
The Persistence Assessment Tool (PAT) has been developed by Ricardo, in collaboration with Cefic LRI, Concawe, and ECETOC, in response to the growing interest in the environmental persistence of chemicals, and a need for support to conduct these complex assessments. This training session provides an in-depth look at the use of the tool, including the background and purpose, an overview of features and workflow, and a walkthrough of an example assessment.
PAT Training Session
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Poster: The Persistence Assessment Tool (PAT): Implementing a Methodology for Data Quality Evaluation and Weight of Evidence in Persistence Assessments
Presented at the SETAC EU 2025
Poster: The Persistence Assessment Tool (PAT): Implementing a Methodology for Data Quality Evaluation and Weight of Evidence in Persistence Assessments