PMID- 32652425 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20210211 LR - 20210211 IS - 1873-3336 (Electronic) IS - 0304-3894 (Linking) VI - 401 DP - 2021 Jan 5 TI - Suspect screening based on market data of polar halogenated micropollutants in river water affected by wastewater. PG - 123377 LID - S0304-3894(20)31366-2 [pii] LID - 10.1016/j.jhazmat.2020.123377 [doi] AB - Wastewater treatment plants (WWTPs) are known point sources of contaminants of emerging concern (CECs) to the aquatic environment, but current knowledge is mostly limited to well-known chemical structures. In this study, we sought to identify unknown CECs polluting the aquatic environment through a novel suspect screening approach for organohalogens, i.e. organic halogenated molecules often toxic and resistant to transformation and characterised as persistent organic pollutants (POPs). Surface water samples were collected with passive samplers in the Fyris River catchment (Uppsala, Sweden), analysed using liquid chromatography high-resolution mass spectrometry (LC-HRMS) and screened for organohalogens using a suspect screening approach based on market data obtained from a regulatory authority. Thirteen suspects from very different application areas were confirmed or tentatively identified with high confidence, including seven previously unknown structures (diflufenican, chlorzoxazone, 3-(3,4-dichlorophenyl)-1,1-dimethylurea, 2,4-disulfamyl-5-trifluoromethylaniline, 5-amino-2-chlorotoluene-4-sulfonic acid, perfluoropentane-1-sufonic acid, (2-chlorophenyl)(hydroxy)methanesulfonic acid). Spatiotemporal occurrence patterns were detected, which helped to understand the usage pattern of the chemicals and pinpoint potential pollution sources, e.g. specific WWTPs in the catchment. Several of the newly identified structures had virtually no information publicly available and were detected years after their last registered use, which highlights the knowledge gaps and concerns about POPs. CI - Copyright (c) 2020 The Authors. Published by Elsevier B.V. All rights reserved. FAU - Menger, Frank AU - Menger F AD - Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden. Electronic address: Frank.menger@slu.se. FAU - Ahrens, Lutz AU - Ahrens L AD - Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden. FAU - Wiberg, Karin AU - Wiberg K AD - Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden. FAU - Gago-Ferrero, Pablo AU - Gago-Ferrero P AD - Catalan Institute for Water Research (ICRA), Carrer Emili Grahit 101, 17003, Girona, Spain; Universitat de Girona, Girona, Spain. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200704 PL - Netherlands TA - J Hazard Mater JT - Journal of hazardous materials JID - 9422688 SB - IM OTO - NOTNLM OT - On-site sewage treatment facilities OT - Organic micropollutants (OMPs) OT - POCIS OT - Source tracing EDAT- 2020/07/12 06:00 MHDA- 2020/07/12 06:01 CRDT- 2020/07/12 06:00 PHST- 2020/02/28 00:00 [received] PHST- 2020/06/01 00:00 [revised] PHST- 2020/07/02 00:00 [accepted] PHST- 2020/07/12 06:00 [pubmed] PHST- 2020/07/12 06:01 [medline] PHST- 2020/07/12 06:00 [entrez] AID - S0304-3894(20)31366-2 [pii] AID - 10.1016/j.jhazmat.2020.123377 [doi] PST - ppublish SO - J Hazard Mater. 2021 Jan 5;401:123377. doi: 10.1016/j.jhazmat.2020.123377. Epub 2020 Jul 4.