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Science

Title:		Atmospheric photochemistry at a fatty acid-coated air-water interface
Author(s):		Rossignol S; Tinel L; Bianco A; Passananti M; Brigante M; Donaldson DJ; George C;
Address:		"Universite Lyon, Universite Claude Bernard Lyon 1, CNRS, Institut de Recherches sur la Catalyze et l'Environnement de Lyon (IRCELYON), F-69626 Villeurbanne, France, 2 avenue Albert Einstein, F-69626 Villeurbanne, France. Clermont Universite, Universite Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, F-63000 Clermont-Ferrand, France. Department of Chemistry, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada. Department of Physical and Environmental Sciences, University of Toronto, 80 St. George St., Toronto, ON M5S 3H6, Canada. christian.george@ircelyon.univ-lyon1.fr jdonalds@chem.utoronto.ca. Universite Lyon, Universite Claude Bernard Lyon 1, CNRS, Institut de Recherches sur la Catalyze et l'Environnement de Lyon (IRCELYON), F-69626 Villeurbanne, France, 2 avenue Albert Einstein, F-69626 Villeurbanne, France. christian.george@ircelyon.univ-lyon1.fr jdonalds@chem.utoronto.ca"
Journal Title:		Science
Year:		2016
Volume:		353
Issue:		6300
Page Number:		699 - 702
DOI:		10.1126/science.aaf3617
ISSN/ISBN:		1095-9203 (Electronic) 0036-8075 (Linking)
Abstract:		"Although fatty acids are believed to be photochemically inert in the actinic region, complex volatile organic compounds are produced during illumination of an air-water interface coated solely with a monolayer of carboxylic acid. When aqueous solutions containing nonanoic acid (NA) at bulk concentrations that give rise to just over a monolayer of NA coverage are illuminated with actinic radiation, saturated and unsaturated aldehydes are seen in the gas phase, and more highly oxygenated products appear in the aqueous phase. This chemistry is probably initiated by triplet-state NA molecules excited by direct absorption of actinic light at the water surface. Because fatty acids-covered interfaces are ubiquitous in the environment, such photochemical processing will have a substantial impact on local ozone and particle formation"
Keywords:
Notes:		"PubMed-not-MEDLINERossignol, Stephanie Tinel, Liselotte Bianco, Angelica Passananti, Monica Brigante, Marcello Donaldson, D James George, Christian eng Research Support, Non-U.S. Gov't 2016/08/16 Science. 2016 Aug 12; 353(6300):699-702. doi: 10.1126/science.aaf3617"