University of Illinois Urbana-Champaign

Enrichment of legacy and emerging per- and polyfluoroalkyl substances in the sea surface microlayer

Doane, Hannah

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https://hdl.handle.net/2142/109900

Description

Title
Enrichment of legacy and emerging per- and polyfluoroalkyl substances in the sea surface microlayer
Author(s)
Doane, Hannah
Issue Date
2021-04-27
Keyword(s)
  • per- and polyfluoroalkyl substances
  • PFAS
Abstract
Presented by: Hannah Doane – Graduate Student at MACRL, hannaha.doane@gmail.com Co-authors: Ralph Mead, Jennifer Harfmann Abstract: The global transport of per- and polyfluoroalkyl substances (PFAS) is still widely unknown, particularly as it relates to air-sea exchange. This study focuses on the potential transport and enrichment of legacy and emerging PFAS (e.g. HFPO-DA) via the sea surface microlayer (SML), the interface between the hydrosphere and the atmosphere. Twenty-eight PFAS compounds – including four emerging PFAS – were quantified in the SML and the underlying sub-surface water (SSW) at two sites near a tidal bay on the eastern coast of North Carolina. The distribution of PFAS in both SML and SSW was dominated by PFOS with values of 0.9 to 30.3 ng/L and 1.6 to 5.1 ng/L respectively. Enrichment factors (CSML/CSSW) were highest for legacy PFAS (range: 0.2 to 19.6) and lowest for emerging PFAS (range: 0.7 to 7.0). This work emphasizes that the SML could be key in contributing to air-sea exchange and subsequent long-range transport of legacy PFAS compounds. Furthermore, as the number of emerging PFAS compounds continues to increase, the SML may be a critical boundary layer in understanding PFAS global transport. Biography: Hannah Doane is a graduate student at UNCW and her research is conducted through the MACRL group. She received her B.S. in Chemistry in 2019 and has been working with MACRL since 2017.
Series/Report Name or Number
2021 Emerging Contaminants in the Environment Conference (ECEC21)
Type of Resource
  • text
  • still image
Language
en
Permalink
http://hdl.handle.net/2142/109900

Owning Collections

2021 Emerging Contaminants in the Environment Conference (ECEC21) PRIMARY