The international workshop on contamination of cetaceans in the Pelagos Sanctuary was organized by GIS3M (Groupement d'Intérêt Scientifique pour les Mammifères Marins de Méditerranée) as part of the project "Biological and toxicological contamination of cetaceans in the Pelagos Sanctuary: assessment, origin, monitoring and mitigation" funded by the Permanent Secretariat of the Pelagos Agreement. The workshop took place on October 4th 2019 in La Londe-les-Maures (France).

In the morning session, stakeholders presented the results of their work to assess the impact of land-based pollution on cetaceans, whether chemical (detergents, pesticides, heavy metals, hydrocarbons, plastics) and biological (viruses, bacteria and parasites). The afternoon session was dedicated to an exchange of ideas on research priorities and on the harmonization of analysis and monitoring methodologies within the Sanctuary.

The second part of the workshop will take place in early 2020 in Italy. It will aim to propose ideas for the Pelagos Sanctuary in order to reduce the contamination of cetaceans of this area.