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Andersson, A.* ; Harir, M. ; Gonsior, M.* ; Hertkorn, N. ; Schmitt-Kopplin, P. ; Kylin, H.* ; Karlsson, S.* ; Ashiq, M.J.* ; Lavonen, E.* ; Nilsson, K.* ; Pettersson, Ä.* ; Stavklint, H.* ; Bastviken, D.*

Waterworks-specific composition of drinking water disinfection by-products.

Environ. Sci.: Water Res. Technol. 5, 861-872 (2019)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Reactions between chemical disinfectants and natural organic matter (NOM) upon drinking water treatment result in formation of potentially harmful disinfection by-products (DBPs). The diversity of DBPs formed is high and a large portion remains unknown. Previous studies have shown that non-volatile DBPs are important, as much of the total toxicity from DBPs has been related to this fraction. To further understand the composition and variation of DBPs associated with this fraction, non-target analysis with ultrahigh resolution Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) was employed to detect DBPs at four Swedish waterworks using different types of raw water and treatments. Samples were collected five times covering a full year. A common group of DBPs formed at all four waterworks was detected, suggesting a similar pool of DBP precursors in all raw waters that might be related to phenolic moieties. However, the largest proportion (64-92%) of the assigned chlorinated and brominated molecular formulae were unique, i.e. were solely found in one of the four waterworks. In contrast, the compositional variations of NOM in the raw waters and samples collected prior to chemical disinfection were rather limited. This indicated that waterworks-specific DBPs presumably originated from matrix effects at the point of disinfection, primarily explained by differences in bromide levels, disinfectants (chlorine versus chloramine) and different relative abundances of isomers among the NOM compositions studied. The large variation of observed DBPs in the toxicologically relevant non-volatile fraction indicates that non-targeted monitoring strategies might be valuable to ensure relevant DBP monitoring in the future.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Dissolved Organic-matter; Haloacetic Acids; Mass; Chlorination; Chloramination; Dom; Trihalomethanes; Genotoxicity; Extraction; Toxicity
Sprache englisch
Veröffentlichungsjahr 2019
HGF-Berichtsjahr 2019
ISSN (print) / ISBN 2053-1400
e-ISSN 2053-1419
Zeitschrift Environmental science : Water research & technology
Quellenangaben Band: 5, Heft: 5, Seiten: 861-872 Artikelnummer: , Supplement: ,
Verlag Royal Society of Chemistry (RSC)
Verlagsort Cambridge
Begutachtungsstatus Peer reviewed
Institut(e) Research Unit BioGeoChemistry and Analytics (BGC)
POF Topic(s) 30202 - Environmental Health
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504800-001
DOI 10.1039/c9ew00034h
WOS ID WOS:000471671000004
Scopus ID 85064989278
Erfassungsdatum 2019-05-09
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