Cited by 93Per- and polyfluoroalkyl substances researchEnvironmental Chemistry and AnalysisGroundwater flow and contamination studies

Estimating the relative magnitudes of adsorption to solid-water and air/oil-water interfaces for per- and poly-fluoroalkyl substances

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Brusseau, Mark L.·2019·Environmental Pollution

Abstract

Per- and poly-fluoroalkyl substances (PFAS) have attracted considerable concern due to their widespread occurrence in the environment and potential human health risks. Given the complexity of PFAS retention in multi-phase systems, it would be useful for characterization and modeling purposes to be able to readily determine the relative significance of the individual retention processes for a given PFAS and set of subsurface conditions. A quantitative-structure/property-relationship (QSPR) analysis was conducted for adsorption of PFAS by soils, sediments, and granular activated carbon (GAC), and integrated with a prior analysis conducted for adsorption to air-water and oil-water interfaces. The results demonstrated that a model employing molar volume provided reasonable predictions of organic-carbon normalized soil/sediment adsorption coefficients (log K oc), GAC-adsorption coefficients (log K d), and air/oil-water interfacial adsorption coefficients (log K i) for PFAS. The relative magnitudes of solid-water and air/oil-water interfacial adsorption were compared as a function of controlling variables. A nomograph was developed that provides a first-order determination of the relative significance of these interfacial adsorption processes in multi-phase porous-media systems.

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Research works printed but not linked: 9

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Authors
Brusseau, M. L.
Affiliations
University of Arizona (US)
Corresponding author
Brusseau, Mark L.
Venue
Environmental Pollution
Publisher
Elsevier BV
Published
2019-11
Volume
254
Issue
Pt B
Pages
113102
ISSN
0269-7491 (ISSN-L)
OpenAlex
W2969687150
Cited by
93
References
35
Citations by year
2026: 12 · 2025: 17 · 2024: 13 · 2023: 10 · 2022: 12 · 2021: 16 · 2020: 11 · 2019: 2
FWCI
4.46
Type
journal article
Language
en
Open access
Locations
  • Environmental Pollution (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Environmental Health Sciences
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
  • Physical Sciences › Environmental Science › Environmental Engineering › Groundwater flow and contamination studies
Keywords
per- and polyfluoroalkyl substances, PFAS adsorption, interfacial adsorption, air-water interface, oil-water interface, granular activated carbon, distribution coefficient, molar volume, QSPR, nomogram
MeSH terms
Adsorption, Charcoal, Fluorocarbons, Humans, Models, Chemical, Soil, Water, Water Pollutants, Chemical, Porosity, Geologic Sediments

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