Modelling-based strategy for the Prioritisation Exercise under the Water Framework Directive


	Nicola Chirico, Raquel N. Carvalho, Lidia Ceriani and Teresa Lettieri
	The Water Framework Directive 2000/60/EC (WFD) aims to protect the aquatic environment at European level by achieving the good chemical and ecological status of all water bodies. In order to reach the good chemical status of their waterbodies, Member states should monitor the Priority Substances listed in Annex 10 of the WFD and they should ensure that the concentrations of these substances or groups of substances in the aquatic environment do not exceed the related Environmental Quality Standards, set to protect human health and the environment (Directive 2008/105/EC amended by Directive 2013/39/EU). Priority substances that are persistent, toxic and liable to bioaccumulate or which give rise to a similar level of concern are identified as Priority Hazardous Substances. Under Article 16 (4) of the WFD, later amended by Directive 2013/39/EU, the Commission is required to review the list of substances designated as Priority Substances and Priority Hazardous Substances every six years. The ongoing prioritisation process is coordinated by JRC in collaboration with DG ENV and the expert sub-group of the Working group chemicals. The process includes two approaches, the monitoring and modelling based exercises. The first has been developed considering the available monitoring data and criteria for selection of substances undergoing this exercise. The latter has been conceived for those substances for which either monitoring data are insufficient or completely missing. This report is focused on the modelling-based exercise to explain the screening phase process and the models used to derive the Predicted Environmental Concentration (PEC) required to determine the risk assessment based on the ratio between the PEC and Predicted No Effect Concentration (PNEC).

Keywords: D8, Descriptor 8, FD, Water Framework Directive, good chemical status, good ecological status, Priority Substances, Environmental Quality Standards, Predicted Environmental Concentration, PEC, Predicted No Effect Concentration, PNEC

Type	Report
Published	2015
Source	JRC Science and Policy Reports
Ref.
Level	DE
Language	EN

Inv. nb:	201604114451 Download: 500.0 Ko