Issue 3, 2024
From the journal:

Environmental Science: Processes & Impacts

Experimental determination of the partitioning of representative organic pollutants to the air–water interface†

Emma M. McLay,a   Carole Abdel Nour,b   Yao Yan Huang,a   Zoë M. Golay,a   Pascal Wong-Wah-Chung,b   Stéphanie Rossignolb  and  D. James Donaldson ORCID logo *ac  

* Corresponding authors

a Department of Chemistry, University of Toronto, Toronto, ON, Canada
E-mail: james.donaldson@utoronto.ca

b Aix Marseille Univ, CNRS, LCE, UMR 7376, Marseille, France

c Department of Physical and Environmental Sciences, University of Toronto Scarborough, Canada

Abstract

Using glancing-angle laser-induced fluorescence (GALIF) spectroscopy as a probe, the partitioning of naphthalene, fluoranthene, pyrene, umbelliferone, phenol red, and bisphenol A from bulk solution to the air–water interface was examined in both pure water and aqueous solutions of 6 mM octanol. Previous studies provided similar Langmuir adsorption isotherms for anthracene and imidazole 2-carboxaldehyde. The surface partitioning behaviour of each compound in both environments was well described using a Langmuir adsorption model; partitioning coefficients were derived from the fits to such isotherms. Only the PAH molecules, naphthalene, fluoranthene and pyrene, saw an enhancement in the surface partitioning in octanol solution compared to pure water. The surface partitioning to pure water surfaces could be fairly well described using a one parameter linear free energy relationship based on either solubility or KOW.

Graphical abstract: Experimental determination of the partitioning of representative organic pollutants to the air–water interface

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Article information

DOI
https://doi.org/10.1039/D3EM00394A
Article type
Paper
Submitted
06 Sep 2023
Accepted
05 Jan 2024
First published
08 Feb 2024
This article is Open Access
Creative Commons BY-NC license

Environ. Sci.: Processes Impacts, 2024,26, 510-518

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Experimental determination of the partitioning of representative organic pollutants to the air–water interface

E. M. McLay, C. Abdel Nour, Y. Y. Huang, Z. M. Golay, P. Wong-Wah-Chung, S. Rossignol and D. J. Donaldson, Environ. Sci.: Processes Impacts, 2024, 26, 510 DOI: 10.1039/D3EM00394A

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