Developing Science-Informed Policy Responses to Curb Endocrine Disruption in Freshwater

18-19 October 2022
9h30 – 16h00
CC13 - La Muette, Paris

Endocrine disrupting chemicals (EDCs) are contaminants of emerging concerns (CECs) that can affect the normal function of the endocrine system which can lead to adverse effect in humans and in wildlife. In humans, EDCs are associated with disease outcomes such as fertility loss, hormone-sensitive cancers, thyroid malfunctions, obesity, and neurodevelopment impacts. In wildlife, similar effects are occurring which can have negative impacts on population of species - raising concerns for the integrity of ecosystems and biodiversity.

While the knowledge about the effects and presence of EDCs in freshwater are increasingly documented across the world, policymakers are searching for ways to address the challenges of EDCs in freshwater. This is explained by the many challenges posed by EDCs such as their effects at low concentrations, their interaction in complex mixtures, as well as the variety of chemical class they encompass (e.g., pharmaceuticals, pesticides, hormones, consumer products). Collaboration across sectors and disciplines, as well as new forms of water quality regulation are required to tackle the issue of EDCs in freshwater.



The workshop on “Developing science-informed policy responses to curb endocrine disruption in freshwater” aimed to gather policymakers, academics, industry, IGOs and NGOs to provide guidance on monitoring tools, policy instruments and country practices to manage endocrine disruption in the freshwater environment. The workshop was a hybrid event with both in-person and virtual participation. The objectives of the workshop were to:

      • Build a policy-relevant knowledge base on endocrine disruption in freshwater and its impacts on ecosystems and human health.
      • Identify lessons learnt and good practices from country case studies on monitoring and policy approaches on freshwater.
      • Explore policy options to advance from monitoring and data collection to mitigating endocrine disruption.

The outcomes of the workshop will inform the OECD report on Policy Responses to Endocrine Disruption in Freshwater.



 Session 1: Making the case for policy responses

 Session 2: Monitoring and assessing endocrine disruption in freshwater

Session 3: Mainstreaming effect-based methods in policies

Session 4: Contrasting and comparing country responses to managing EDCs

Session 5: Multilateral approaches to support action by the environmental sector


Please contact Marijn Korndewal, Policy Analyst: [email protected]