Sörengård, Mattias
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
Research article2021Peer reviewedOpen access
Simultaneous analysis of neutral and ionizable per- and polyfluoroalkyl substances in air
Wu, Rongben; Lin, Huiju; Yamazaki, Eriko; Taniyasu, Sachi; Sorengard, Mattias; Ahrens, Lutz; Lam, Paul K. S.; Eun, Heesoo; Yamashita, Nobuyoshi
Abstract
A new method is preliminarily validated for the simultaneous analysis of ionic and neutral per- and polyfluomalkyl substances (PFASs) in both particulate and gaseous phases in air using a nanosampler-20 air sampler (NS20) composed of quartz fiber filters (QFFs), polyurethane foam (PUF) and artificial activated charcoal (GAIAC (TM)). Perfluoroalkane sulfonamido ethanols (FOSEs) mainly remained in PUF, whereas the other neutral analytes were mainly found in GAIAC. Satisfactory recoveries were obtained for FOSEs, fluorotelomer alcohols (FTOHs), fluomtelomer iodides (FTIs), ranging fron 70%-120%, moderate recoveries were achieved for perfluorinated iodine alkanes (FIAs) and diiodofluoroalkanes (FDIAs), ranging from 50%-70%, while poor recoveries were found for perfluoroalkane sulfonamides (FOSAs). Breakthrough experiments revealed that almost all the target analytes were well trapped in GAIAC (TM), including the very volatile 4:2 FTOH. Applying to real sampling, our results showed that 6:2 and 8:2 FTOH were the most abundant species, with levels detected at 190 pg/m(3) and 160 pg/m(3). To the best of our knowledge, FDIAs were detected in ambient air for the first time at an average level of 8.3 pg/m(3). Overall, the profiles observed from the real air samples reflected current industrial transition from longer chain to shorter chain in PFAS production. Our results revealed that the current method is promising for a more comprehensive understanding on the fates of PFASs in air.
Keywords
PFASs; Simultaneous air analysis; Neutral and ionizable; Gas and particle; Activated charcoal fiber
Published in
Chemosphere
2021, Volume: 280, article number: 130607
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Ahrens, Lutz
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences
SLU Authors
UKÄ Subject classification
Analytical Chemistry
Environmental Sciences
Publication identifier
DOI: https://doi.org/10.1016/j.chemosphere.2021.130607
Permanent link to this page (URI)
https://res.slu.se/id/publ/112915