This report outlines the process to prepare a list of contaminants for use in the 2018 descriptor 8 reporting web forms. This list provides a harmonized nomenclature for the unambiguous identification of the substances, thereby facilitating consistency in the data entry.

This work is part of a process to support regulators in order to select relevant chemical contaminants to be assessed in their jurisdictional area, thus aiming at EU national authorities but also at Regional Sea Conventions (RSC) in the shared marine basins.