The European technical report on aquatic effect-based monitoring tools under the water framework directive

TLDR

The Water Framework Directive (2000/60/EC) mandates an integrated approach to monitoring surface water quality, with chemical status assessed against legally binding Environmental Quality Standards for priority substances. The report was commissioned to identify effect‑based tools such as biomarkers and bioassays for use across surveillance, operational, and investigative monitoring programmes linking chemical and ecological status assessment. The drafting group, chaired by Sweden and co‑chaired by Italy, involved multiple Member States and stakeholders across the EU. The report summarizes the major technical contents and findings regarding effect‑based monitoring tools.

Abstract

Abstract The Water Framework Directive (WFD), 2000/60/EC, requires an integrated approach to the monitoring and assessment of the quality of surface water bodies. The chemical status assessment is based on compliance with legally binding Environmental Quality Standards (EQSs) for selected chemical pollutants (priority substances) of EU-wide concern. In the context of the mandate for the period 2010 to 2012 of the subgroup Chemical Monitoring and Emerging Pollutants (CMEP) under the Common Implementation Strategy (CIS) for the WFD, a specific task was established for the elaboration of a technical report on aquatic effect-based monitoring tools. The activity was chaired by Sweden and co-chaired by Italy and progressively involved several Member States and stakeholders in an EU-wide drafting group. The main aim of this technical report was to identify potential effect-based tools (e.g. biomarkers and bioassays) that could be used in the context of the different monitoring programmes (surveillance, operational and investigative) linking chemical and ecological status assessment. The present paper summarizes the major technical contents and findings of the report.