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Primary submicron marine aerosol dominated by insoluble organic colloids and aggregates

TitoloPrimary submicron marine aerosol dominated by insoluble organic colloids and aggregates
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2008
AutoriFacchini, M.C., Rinaldi M., Decesari S., Carbone C., Finessi E., Mircea Mihaela, Fuzzi S., Ceburnis D., Flanagan R., Nilsson E.D., De Leeuw G., Martino Manuela, Woeltjen J., and O'Dowd C.D.
RivistaGeophysical Research Letters
Volume35
ISSN00948276
Parole chiaveaerosol, Aerosol particles, Aerosols, Agglomeration, aggregate, Aggregates, Algae control, Atlantic Ocean, Atlantic Ocean (North), Atmospheric aerosols, Biological activities, bubble, Bubble bursting, Chemical properties, chemical property, colloid, Colloid chemistry, Colloids, Different sizes, Marine aerosols, Marine particles, North atlantic, Oceanic waters, Organic colloids, organic compounds, Organic materials, organic matter, Organic matters, Particle diameters, Phytoplankton, Phytoplankton blooms, Salt contents, sea salt, Sea waters, Size dependents, Solubility, Spray particles, Sub microns, surface tension, Tension properties, water content
Abstract

The chemical properties of sea-spray aerosol particles produced by artificially generated bubbles using oceanic waters were investigated during a phytoplankton bloom in the North Atlantic. Spray particles exhibited a progressive increase in the organic matter (OM) content from 3 ± 0.4% up to 77 ± 5% with decreasing particle diameter from 8 to 0.125 μm. Submicron OM was almost entirely water insoluble (WIOM) and consisted of colloids and aggregates exuded by phytoplankton. Our observations indicate that size dependent transfer of sea water organic material to primary marine particles is mainly controlled by the solubility and surface tension properties of marine OM. The pattern of WIOM and sea-salt content in the different size intervals observed in bubble bursting experiments is similar to that measured in atmospheric marine aerosol samples collected during periods of high biological activity. The results point to a WIOM/sea-salt fingerprint associated with submicron primary marine aerosol production in biologically rich waters. Copyright 2008 by the American Geophysical Union.

Note

cited By 170

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-55449122901&doi=10.1029%2f2008GL034210&partnerID=40&md5=fd0b15ec59472f2e28c838cdfd84177f
DOI10.1029/2008GL034210
Citation KeyFacchini2008