Simultaneous analysis of neutral and ionizable per- and polyfluoroalkyl substances in air

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

2 Scopus Citations
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Author(s)

  • Eriko Yamazaki
  • Sachi Taniyasu
  • Mattias Sörengård
  • Lutz Ahrens
  • Paul K.S. Lam
  • Heesoo Eun
  • Nobuyoshi Yamashita

Detail(s)

Original languageEnglish
Article number130607
Journal / PublicationChemosphere
Volume280
Online published28 Apr 2021
Publication statusPublished - Oct 2021

Abstract

A new method is preliminarily validated for the simultaneous analysis of ionic and neutral per- and polyfluoroalkyl 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™). 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), fluorotelomer 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™, 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/m3 and 160 pg/m3. To the best of our knowledge, FDIAs were detected in ambient air for the first time at an average level of 8.3 pg/m3. 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.

Research Area(s)

  • Activated charcoal fiber, Gas and particle, Neutral and ionizable, PFASs, Simultaneous air analysis

Citation Format(s)

Simultaneous analysis of neutral and ionizable per- and polyfluoroalkyl substances in air. / Wu, Rongben; Lin, Huiju; Yamazaki, Eriko; Taniyasu, Sachi; Sörengård, Mattias; Ahrens, Lutz; Lam, Paul K.S.; Eun, Heesoo; Yamashita, Nobuyoshi.

In: Chemosphere, Vol. 280, 130607, 10.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review