title: To the editor.
authors.affiliation: Swiss Centre for Applied Ecotoxicology Eawag-EPFL Dübendorf, Switzerland.
authors.forename: Marion
authors.initials: M
authors.lastname: Junghans
authors.affiliation: INERIS, Parc Technologique Alata Verneuil-en-Halatte, France.
authors.forename: Sandrine
authors.initials: S
authors.lastname: Andres
authors.affiliation: German Environment Agency Dessau-Roßlau, Germany.
authors.forename: Jean
authors.initials: J
authors.lastname: Bachmann
authors.affiliation: Swiss Centre for Applied Ecotoxicology Eawag-EPFL Dübendorf, Switzerland.
authors.forename: Robert
authors.initials: R
authors.lastname: Kase
authors.affiliation: Swiss Centre for Applied Ecotoxicology Eawag-EPFL Dübendorf, Switzerland.
authors.forename: Muris
authors.initials: M
authors.lastname: Korkaric
authors.affiliation: German Environment Agency Dessau-Roßlau, Germany.
authors.forename: Ingo
authors.initials: I
authors.lastname: Kirst
authors.affiliation: German Environment Agency Dessau-Roßlau, Germany.
authors.forename: Gerd
authors.initials: G
authors.lastname: Maack
authors.affiliation: Centre for Safety of Substances and Products, National Institute for Public Health and the Environment (RIVM) Bilthoven, The Netherlands.
authors.forename: Caroline
authors.initials: C
authors.lastname: Moermond
authors.affiliation: Centre for Safety of Substances and Products, National Institute for Public Health and the Environment (RIVM) Bilthoven, The Netherlands.
authors.forename: Els
authors.initials: E
authors.lastname: Smit
authors.affiliation: IRSA-CNR, Water Research Institute, National Research Council of Italy Brugherio, Italy.
authors.forename: Sara
authors.initials: S
authors.lastname: Valsecchi
authors.affiliation: Flanders Environment Agency Aalst, Belgium.
authors.forename: Jeroen
authors.initials: J
authors.lastname: Vanhooren
authors.affiliation: Centre for Safety of Substances and Products, National Institute for Public Health and the Environment (RIVM) Bilthoven, The Netherlands.
authors.forename: Eric
authors.initials: E
authors.lastname: Verbruggen
authors.affiliation: Swiss Centre for Applied Ecotoxicology Eawag-EPFL Dübendorf, Switzerland.
authors.forename: Inge
authors.initials: I
authors.lastname: Werner
authors.affiliation: Environment Agency, Wallingford, United Kingdom.
authors.forename: Paul
authors.initials: P
authors.lastname: Whitehouse