Legacy and Emerging Per- and Polyfluoroalkyl Substances in a Subtropical Marine Food Web : Suspect Screening, Isomer Profile, and Identification of Analytical Interference

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

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Author(s)

  • Linjie Jin
  • Lily S. R. Tao
  • Han Lai
  • Guifeng Li
  • Leo W. Y. Yeung
  • Paul K. S. Lam

Detail(s)

Original languageEnglish
Pages (from-to)8355-8364
Journal / PublicationEnvironmental Science & Technology
Volume57
Issue number22
Online published23 May 2023
Publication statusPublished - 6 Jun 2023

Link(s)

Abstract

The ban/elimination of legacy per- and polyfluoroalkyl substances (PFASs) has led to a dramatic increase in the production and use of various emerging PFASs over the past decade. However, trophodynamics of many emerging PFASs in aquatic food webs remain poorly understood. In this study, samples of seawaters and marine organisms including 15 fish species, 21 crustacean species, and two cetacean species were collected from the northern South China Sea (SCS) to investigate the trophic biomagnification potential of legacy and emerging PFASs. Bis(trifluoromethylsulfonyl)imide was found in seawater via suspect screening (concentration up to 1.50 ng/L) but not in the biota, indicating its negligible bioaccumulation potential. A chlorinated perfluorooctane sulfonate (PFOS) analytical interfering compound was identified with a predicted formula of C14H23O5SCl6 (most abundant at m/z = 514.9373). Significant trophic magnification was observed for 22 PFASs, and the trophic magnification factors of cis- and trans-perfluoroethylcyclohexane sulfonate isomers (1.92 and 2.25, respectively) were reported for the first time. Perfluorohexanoic acid was trophic-magnified, possibly attributed to the PFAS precursor degradation. The hazard index of PFOS was close to 1, implying a potential human health risk via dietary exposure to PFASs in seafood on the premise of continuous PFAS discharge to the SCS. © 2023 The Authors. Published by American Chemical Society.

Research Area(s)

  • NTf2, Cl-PFESA, H-PFESA, PFECHS, Cl-PFOS, trophic magnification factor, relativepotency factor, TROPHIC TRANSFER, PHYSICOCHEMICAL PROPERTIES, PERFLUOROALKYL SUBSTANCES, PERFLUORINATED COMPOUNDS, MASS-SPECTROMETRY, ACIDS, CHINA, BIOCONCENTRATION, ACCUMULATION, NONTARGET

Citation Format(s)

Legacy and Emerging Per- and Polyfluoroalkyl Substances in a Subtropical Marine Food Web: Suspect Screening, Isomer Profile, and Identification of Analytical Interference. / Wang, Qi; Ruan, Yuefei; Jin, Linjie et al.
In: Environmental Science & Technology, Vol. 57, No. 22, 06.06.2023, p. 8355-8364.

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

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