Publikation:
Long-term trends of Per- and Polyfluoroalkyl Substances (PFAS) in suspended particular matter from German rivers using the direct Total Oxidizable Precursor (dTOP) assay

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dc.contributor.authorGöckener, Bernd
dc.contributor.authorBadry, Alexander
dc.contributor.authorFliedner, Annette
dc.contributor.authorRüdel, Heinz
dc.contributor.authorKoschorreck, Jan
dc.date.accessioned2024-06-16T13:29:00Z
dc.date.available2024-06-16T13:29:00Z
dc.date.issued2022
dc.description.abstractSuspended particulate matter (SPM) from 13 riverine sampling sites of the German Environmental Specimen Bank collected between 2005 and 2019 was retrospectively investigated for per- and polyfluoroalkyl substances (PFAS). The samples were analyzed both by target analysis for 41 PFAS and by a modified total oxidizable precursor (dTOP) assay to capture also unknown precursors. Temporal trends and spatial differences were investigated by generalized linear modeling (GLM). Time trend analysis across all rivers showed decreasing trends for (Sigma)PFCA and (Sigma)PFSA concentrations in SPM. Trends based on target analysis ((Sigma)PFCAtarget: -10.0%, (Sigma)PFSAtarget: -8.2%) were more pronounced than in the dTOP analysis ((Sigma)PFCAdTOP: -4.2%; (Sigma)PFSAdTOP: -5.3%), suggesting that conventional target analysis overestimated actual decreases as precursors are not considered. (Sigma)PFAS concentrations determined by dTOP assay were 1.3-145 times higher as compared to target analysis, indicating substantial amounts of unknown precursors in the samples. The (Sigma)PFASdTOP/(Sigma)PFAStarget ratio increased at all sites between 2005 and 2019. Contamination was highest in SPM from the Elbe tributary Mulde downstream of a large industrial park. The results underscore the need to go beyond conventional target analysis and include precursors when assessing PFAS contamination in the environment. The dTOP assay is a suitable tool for this purpose. © 2022, American Chemical Societyen
dc.format.extent1 Onlineresource (pages 208-217)
dc.format.mediumonline resource
dc.identifier.doihttps://doi.org/10.60810/openumwelt-1587
dc.identifier.urihttps://openumwelt.de/handle/123456789/3040
dc.language.isoeng
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectBundesrepublik Deutschland
dc.titleLong-term trends of Per- and Polyfluoroalkyl Substances (PFAS) in suspended particular matter from German rivers using the direct Total Oxidizable Precursor (dTOP) assay
dc.typeWissenschaftlicher Artikel
dc.type.dcmitext
dc.type.mediumcomputer
dspace.entity.typePublication
local.bibliographicCitation.journalTitleEnvironmental Science & Technology
local.bibliographicCitation.originalDOI10.1021/acs.est.1c04165
local.bibliographicCitation.volume56 (2022), Heft 1
local.collectionAufsätze
local.contributor.authorId02185377
local.contributor.authorId(DE-588)1210203405
local.contributor.authorId(DE-588)112392970
local.contributor.authorId02054381
local.contributor.authorId(DE-588)112034918
local.contributor.authorId02047186
local.identifier.catalogId02487892
local.ingest.leader05649naa a2200000uu 4500
local.jointTitleLONGTERM TRENDS OF PER AND POLYFLUOROALKYL SUBSTANCES PFAS IN SUSPENDED PARTICULAR MATTER FROM GERMAN RIVERS USING THE DIRECT TOTAL OXIDIZABLE PRECURSOR DTOP ASSAY
local.reviewtrue
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local.source.urihttp://creativecommons.org/licenses/by/4.0/
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