Neutral poly-/perfluoroalkyl substances in air and snow from the Arctic

Scientific Reports
Zhiyong XieRalf Ebinghaus

Abstract

Levels of neutral poly-/perfluoroalkyl substances (nPFASs) in air and snow collected from Ny-Ålesund were measured and their air-snow exchange was determined to investigate whether they could re-volatilize into the atmosphere driven by means of air-snow exchange. The total concentration of 12 neutral PFASs ranged from 6.7 to 39 pg m(-3) in air and from 330 to 690 pg L(-1) in snow. A significant log-linear relationship was observed between the gas/particle partition coefficient and vapor pressure of the neutral PFASs. For fluorotelomer alcohol (FTOHs) and fluorotelomer acrylates (FTAs), the air-snow exchange fluxes were positive, indicating net evaporative from snow into air, while net deposition into snow was observed for perfluorooctane sulfonamidoethanols (Me/EtFOSEs) in winter and spring of 2012. The air-snow exchange was snow-phase controlled for FTOHs and FTAs, and controlled by the air-phase for FOSEs. Air-snow exchange may significantly interfere with atmospheric concentrations of neutral PFASs in the Arctic.

References

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May 3, 2013·Environmental Science and Pollution Research International·Zhiyong XieRalf Ebinghaus

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Citations

Jun 9, 2015·Environmental Science & Technology·Zhen WangRalf Ebinghaus
Apr 27, 2016·Environmental Pollution·Senchao LaiZhiyong Xie
Feb 15, 2017·Environmental Science & Technology·Paulo CasalJordi Dachs
Jan 17, 2020·Environmental Science. Processes & Impacts·Colin P ThackrayCora J Young
Feb 18, 2021·Environmental Health Perspectives·Simona Andreea BălanAndré Maurice Algazi
Jul 13, 2019·Environmental Science & Technology·Paulo CasalJordi Dachs

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