Journal article
Analysis of Organic Anionic Surfactants in Fine and Coarse Fractions of Freshly Emitted Sea Spray Aerosol
Environmental science & technology, Vol.50(5), pp.2477-2486
03/01/2016
DOI: 10.1021/acs.est.5b04053
PMID: 26828238
Abstract
The inclusion of organic compounds in freshly emitted sea spray aerosol (SSA) has been shown to be size-dependent, with an increasing organic fraction in smaller particles. Here we have used electrospray ionization-high resolution mass spectrometry in negative ion mode to identify organic compounds in nascent sea spray collected throughout a 25 day mesocosm experiment. Over 280 organic compounds from ten major homologous series were tentatively identified, including saturated (C8-C24) and unsaturated (C12-C22) fatty acids, fatty acid derivatives (including saturated oxo-fatty acids (C5-C18) and saturated hydroxy-fatty acids (C5-C18), organosulfates (C2-C7, C12-C17) and sulfonates (C16-C22). During the mesocosm, the distributions of molecules within some homologous series responded to variations among the levels of phytoplankton and bacteria in the seawater. The average molecular weight and carbon preference index of saturated fatty acids significantly decreased within fine SSA during the progression of the mesocosm, which was not observed in coarse SSA, sea-surface microlayer or in fresh seawater. This study helps to define the molecular composition of nascent SSA and biological processes in the ocean relate to SSA composition.
Details
- Title: Subtitle
- Analysis of Organic Anionic Surfactants in Fine and Coarse Fractions of Freshly Emitted Sea Spray Aerosol
- Creators
- Richard E Cochran - Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United StatesOlga Laskina - Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United StatesThilina Jayarathne - Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United StatesAlexander Laskin - William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory , Richland, Washington 99354, United StatesJulia Laskin - Physical Sciences Division, Pacific Northwest National Laboratory , Richland, Washington 99354, United StatesPeng Lin - William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory , Richland, Washington 99354, United StatesCamille Sultana - Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United StatesChristopher Lee - Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United StatesKathryn A Moore - Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United StatesChristopher D Cappa - Department of Civil and Environmental Engineering, University of California, Davis , Davis, California 95616, United StatesTimothy H Bertram - Department of Chemistry, University of Wisconsin-Madison , Madison, Wisconsin 53706, United StatesKimberly A Prather - Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California 92093, United StatesVicki H Grassian - Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California 92093, United StatesElizabeth A Stone - Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United States
- Resource Type
- Journal article
- Publication Details
- Environmental science & technology, Vol.50(5), pp.2477-2486
- DOI
- 10.1021/acs.est.5b04053
- PMID
- 26828238
- NLM abbreviation
- Environ Sci Technol
- ISSN
- 0013-936X
- eISSN
- 1520-5851
- Grant note
- P30 ES005605 / NIEHS NIH HHS
- Language
- English
- Date published
- 03/01/2016
- Academic Unit
- Chemistry; Chemical and Biochemical Engineering
- Record Identifier
- 9984216708702771
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