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Sea Spray Aerosol Formation: Laboratory Results on the Role of Air Entrainment, Water Temperature, and Phytoplankton Biomass
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för miljövetenskap och analytisk kemi.ORCID-id: 0000-0003-0645-3265
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för miljövetenskap och analytisk kemi.
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Rekke forfattare: 52019 (engelsk)Inngår i: Environmental Science and Technology, ISSN 0013-936X, E-ISSN 1520-5851, Vol. 53, nr 22, s. 13107-13116Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Sea spray aerosol (SSA) emission is a complex process affected by various controlling factors. This work seeks to deconvolute some of this complexity in a controlled laboratory setting using a plunging jet by varying three key parameters, one at a time: (1) air entrainment rate, (2) seawater temperature, and (3) biomass of phytoplankton. The production of SSA is found to vary linearly with air entrainment rate. By normalizing the production flux to air entrainment rate, we observe nonlinear variation of the production efficiency of SSA with seawater temperature with a minimum around 6-10 degrees C. For comparison, SSA was also generated by detraining air into artificial seawater using a diffuser demonstrating that the production efficiency of SSA generated using a diffuser decreases almost linearly with increasing seawater temperature, and the production efficiency is, significantly higher than that for SSA generated using a plunging jet. Finally, by varying the amount of phytoplankton biomass we demonstrate that SSA particle production varies nonlinearly with the amount of biomass in seawater.

sted, utgiver, år, opplag, sider
2019. Vol. 53, nr 22, s. 13107-13116
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URN: urn:nbn:se:su:diva-176496DOI: 10.1021/acs.est.9b04078ISI: 000498279400015PubMedID: 31633921OAI: oai:DiVA.org:su-176496DiVA, id: diva2:1381714
Tilgjengelig fra: 2019-12-27 Laget: 2019-12-27 Sist oppdatert: 2020-02-06bibliografisk kontrollert

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