Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1021/acs.est.1c07949
Titel (primär) Ultra-short-chain PFASs in the sources of German drinking water: Prevalent, overlooked, difficult to remove, and unregulated
Autor Neuwald, I.J.; Hübner, D.; Wiegand, H.L.; Valkov, V.; Borchers, U.; Nödler, K.; Scheurer, M.; Hale, S.E.; Arp, H.P.H.; Zahn, D. ORCID logo
Quelle Environmental Science & Technology
Erscheinungsjahr 2022
Department ANA
Band/Volume 56
Heft 10
Seite von 6380
Seite bis 6390
Sprache englisch
Topic T9 Healthy Planet
Supplements https://ndownloader.figstatic.com/files/35001223
https://ndownloader.figstatic.com/files/35001229
Keywords monitoring; sum parameters; trifluoroacetate (TFA); trifluoromethanesulfonate (TFMS); perfluoropropanoate (PFPrA); hexafluoroisopropanol (HFIP); bis(trifluoromethylsulfonyl)imide (NTf2); tris(pentafluoroethyl)trifluorophosphate (FAP)
Abstract Per- and polyfluoroalkyl substances (PFASs) have been a focal point of environmental chemistry and chemical regulation in recent years, culminating in a shift from individual PFAS regulation toward a PFAS group regulatory approach in Europe. PFASs are a highly diverse group of substances, and knowledge about this group is still scarce beyond the well-studied, legacy long-chain, and short-chain perfluorocarboxylates (PFCAs) and perfluorosulfonates (PFSAs). Herein, quantitative and semiquantitative data for 43 legacy short-chain and ultra-short-chain PFASs (≤2 perfluorocarbon atoms for PFCAs, ≤3 for PFSAs and other PFASs) in 46 water samples collected from 13 different sources of German drinking water are presented. The PFASs considered include novel compounds like hexafluoroisopropanol, bis(trifluoromethylsulfonyl)imide, and tris(pentafluoroethyl)trifluorophosphate. The ultra-short-chain PFASs trifluoroacetate, perfluoropropanoate, and trifluoromethanesulfonate were ubiquitous and present at the highest concentrations (98% of sum target PFAS concentrations). “PFAS total” parameters like the adsorbable organic fluorine (AOF) and total oxidizable precursor (TOP) assay were found to provide only an incomplete picture of PFAS contamination in these water samples by not capturing these highly prevalent ultra-short-chain PFASs. These ultra-short-chain PFASs represent a major challenge for drinking water production and show that regulation in the form of preventive measures is required to manage them.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=26247
Neuwald, I.J., Hübner, D., Wiegand, H.L., Valkov, V., Borchers, U., Nödler, K., Scheurer, M., Hale, S.E., Arp, H.P.H., Zahn, D. (2022):
Ultra-short-chain PFASs in the sources of German drinking water: Prevalent, overlooked, difficult to remove, and unregulated
Environ. Sci. Technol. 56 (10), 6380 - 6390 10.1021/acs.est.1c07949