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Register now - EFSA International Workshop on Risk Assessment of Combined Exposure to Multiple Chemicals


Don’t miss our International Workshop! If you are interested in the risk assessment of Combined Exposure to Multiple Chemicals, register now!

The deadline for registration is midnight on 30 August. Places are limited so don’t wait till the last minute!

International workshop

An international workshop on risk assessment of chemical mixtures will take place online on 18-20 October 2021 in three afternoon sessions.

This event targeted at scientists working on methods for risk assessment of combined exposure to multiple chemicals including both regulated products and contaminants, and using mode of action, adverse outcome pathways, exposure assessment, toxicokinetic and toxicodynamic modelling, and in silico methods.

Structure of the event

The workshop will consist of an opening plenary session providing international perspectives on the topic, break-out and plenary sessions, and a final plenary session. The draft programme will include presentations and discussion groups exploring questions on Scientific Criteria for grouping chemicals into assessment groups and future challenges in risk assessment of combined exposure to multiple chemicals (chemical mixtures):

  • Hazard-driven criteria,
  • Prioritisation methods: exposure, driven criteria and risk-based criteria,
  • Future challenges in the risk assessment of multiple chemicals.


Who should attend? The workshop is intended for risk assessors, scientists, policymakers and risk managers working in the field of human health risk assessment of chemicals and others with a potential interest in this topic, e.g. NGOs, industry, journalists. Physical participation is limited to a maximum of 120 participants. The final selection will aim for a balanced representation of expertise and backgrounds.

On-line registration

The registration form is available here.

Please note that registration may close once the maximum number of participants is reached or, at the latest, by midnight on 30 August 2021.

After closure of registration, potential participants will be informed whether they have been selected for participation.


Contact the organising committee at events [at] for more information.


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