31.05.2022 - 01.06.2022

Workshop on advancing the science of exposure assessment of low molecular weight components in polymer matrices

This event is by invitation only.
For more information, please contact info@ecetoc.org


Current models and concepts for determination of migration of substances from plastics are based upon the Piringer model1 and are enshrined in food contact legislation. Recent advances in model development have shown that the Piringer model describes steady-state conditions well but that diffusion within the plastic (polymer) limits migration under most realistic use and exposure conditions which are not at steady-state. This new exposure science may provide an opportunity to advance both human health and environmental exposure and risk assessments from a wide range of structural matrices including polymers, micro and macro-plastics, metals and alloys.

Regulation of polymers under REACH is imminent and requires the development of a Technical Guidance Document (TGD) on the exposure assessment of low molecular weight components from solid, insoluble polymers. In addition, food contact regulations and associated TGD relating to repeated use and short contact conditions require updating to reflect recent scientific developments. Furthermore, greater understanding of exposure from macro- and micro-plastics is urgently needed to inform on the risk assessment of these materials and reduce societal concerns.

Workshop objectives

1. Recognising the state of the science on experimental and computational exposure modelling of the release of Low Molecular Weight Compounds (LMWC) from polymers.
2. Share cross-sector expertise on available models/methods and recent developments for exposure assessment of low molecular weight components in polymer matrices, for human health and environmental risk assessments.
3. Identify areas of research and development and how to best progress.

Workshop deliverables

1. After the workshop, the Organising Committee will compile the outcome into a proposal for future research (both HH and ENV) – how can science help to address regulatory needs and societal concerns?
2. The medium/long-term objective is to support with developing a framework for regulatory validation.

Programme & abstracts

Please see the programme including the abstracts here


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