, Acknowledgements, vol.438

, The major part of the project was funded by in-kind contribution from numerous project partners showing high 439 interest in this project. Essential parts of the project, e.g. extraction and reporting were externally co-funded by the 440

S. Centre, A. Ecotoxicology, E. , and N. Network, INERIS and Pharmaceutical, p.441

. Associations, . Pfizer, &. Johnson, and . Johnson, TEVA which joined the project later and only supported the extraction at 442 central Lab BDS) In total, 70 colleagues associated to 24 institutes and agencies in 12 nations contributed to this 443 project. The authors would like to thank: Joint Research Centre (EC) The French Agency for Biodiversity 444 (previously ONEMA) (FR Italian 447, INERIS (FR), Bio Detection Systems (NL), Swiss Centre for Applied Ecotoxicology 445 (CH), Federal Institute of Hydrology (DE), Federal Environment Agency (DE), RWTH Aachen (DE), RECETOX 446 (CZ), NORMAN-Network, Helmholtz Centre for Environmental Research-UFZ (DE), IRSA-CNR (IT)

, Water Research Institute T.G.Masaryk (CZ)

E. Office and . De, Environment Agency Austria (AT), ISSeP (Scientific Institute of 449

, BrianzAcque (IT), Vettabbia scarl, MilanoDepur (IT) Agence de 450 l'Eau Adour-Garonne (FR), Ontario Ministry of the Environment and Climate Change (CAN), McGill University 451 (CAN), Environmental Institute (SK) and DG Environment of the European Commission (EC). The project 452 partners from UFZ, RWTH Aachen, INERIS and RECETOX were supported by the SOLUTIONS project, Public Service) Wallonia (BE), SMAT (IT), p.454

, under grant agreement number 603437 Additionally, we would like to thank Christin Kuehnert

M. König and . Gundlach, RWTH) for experimental assistance. Special thanks for stewardship of this 456 study we would like to address to Helen Clayton and Stéphanie Schaan from European Commission

, The Federal Institute of Hydrology got financial support by the Federal Ministry for the Environment, 459 Conservation, and Building (BMUB)

, Conflict of interests 462

, The Federal Institute of Hydrology did not receive any kind of financial support from the Pharmaceutical 463

. Associations, Other authors declare no conflict of interest

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