Journal article
Enrichment of Saccharides and Divalent Cations in Sea Spray Aerosol During Two Phytoplankton Blooms
Environmental science & technology, Vol.50(21), pp.11511-11520
11/01/2016
DOI: 10.1021/acs.est.6b02988
PMID: 27709902
Abstract
Sea spray aerosol (SSA) is a globally important source of particulate matter. A mesocosm study was performed to determine the relative enrichment of saccharides and inorganic ions in nascent fine (PM ) and coarse (PM ) SSA and the sea surface microlayer (SSML) relative to bulk seawater. Saccharides comprise a significant fraction of organic matter in fine and coarse SSA (11 and 27%, respectively). Relative to sodium, individual saccharides were enriched 14-1314-fold in fine SSA, 3-138-fold in coarse SSA, but only up to 1.0-16.2-fold in SSML. Enrichments in SSML were attributed to rising bubbles that scavenge surface-active species from seawater, while further enrichment in fine SSA likely derives from bubble films. Mean enrichment factors for major ions demonstrated significant enrichment in fine SSA for potassium (1.3), magnesium (1.4), and calcium (1.7), likely because of their interactions with organic matter. Consequently, fine SSA develops a salt profile significantly different from that of seawater. Maximal enrichments of saccharides and ions coincided with the second of two phytoplankton blooms, signifying the influence of ocean biology on selective mass transfer across the ocean-air interface.
Details
- Title: Subtitle
- Enrichment of Saccharides and Divalent Cations in Sea Spray Aerosol During Two Phytoplankton Blooms
- Creators
- Thilina Jayarathne - Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, United StatesCamille M 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 StatesFrancesca Malfatti - OGS, National Institute of Oceanography and Experimental Geophysics , Trieste 34100, ItalyJoshua L Cox - Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United StatesMatthew A Pendergraft - Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California 92037, United StatesKathryn A Moore - Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United StatesFarooq Azam - Scripps Institution of Oceanography, University of California, San Diego , La Jolla, California 92037, United StatesAlexei V Tivanski - Department of Chemistry, University of Iowa , Iowa City, Iowa 52242, 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 StatesVicki H Grassian - Department of Chemistry and Biochemistry, University of California, San Diego , La Jolla, California 92093, United StatesKimberly A Prather - Department of Chemistry and Biochemistry, 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(21), pp.11511-11520
- DOI
- 10.1021/acs.est.6b02988
- PMID
- 27709902
- NLM abbreviation
- Environ Sci Technol
- ISSN
- 0013-936X
- eISSN
- 1520-5851
- Publisher
- United States
- Grant note
- P30 ES005605 / NIEHS NIH HHS
- Language
- English
- Date published
- 11/01/2016
- Academic Unit
- Occupational and Environmental Health; Chemistry; Chemical and Biochemical Engineering
- Record Identifier
- 9983985930002771
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