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Rosati B, Christiansen S, Wollesen de Jonge R, Roldin P, Jensen MM, Wang K, Moosakutty SP, Thomsen D, Salomonsen C, Hyttinen N, Elm J, Feilberg A, Glasius M, Bilde M. New Particle Formation and Growth from Dimethyl Sulfide Oxidation by Hydroxyl Radicals. ACS Earth Space Chem 2021; 5:801-811. [PMID: 33889792 PMCID: PMC8054244 DOI: 10.1021/acsearthspacechem.0c00333] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 05/30/2023]
Abstract
Dimethyl sulfide (DMS) is produced by plankton in oceans and constitutes the largest natural emission of sulfur to the atmosphere. In this work, we examine new particle formation from the primary pathway of oxidation of gas-phase DMS by OH radicals. We particularly focus on particle growth and mass yield as studied experimentally under dry conditions using the atmospheric simulation chamber AURA. Experimentally, we show that aerosol mass yields from oxidation of 50-200 ppb of DMS are low (2-7%) and that particle growth rates (8.2-24.4 nm/h) are comparable with ambient observations. An HR-ToF-AMS was calibrated using methanesulfonic acid (MSA) to account for fragments distributed across both the organic and sulfate fragmentation table. AMS-derived chemical compositions revealed that MSA was always more dominant than sulfate in the secondary aerosols formed. Modeling using the Aerosol Dynamics, gas- and particle-phase chemistry kinetic multilayer model for laboratory CHAMber studies (ADCHAM) indicates that the Master Chemical Mechanism gas-phase chemistry alone underestimates experimentally observed particle formation and that DMS multiphase and autoxidation chemistry is needed to explain observations. Based on quantum chemical calculations, we conclude that particle formation from DMS oxidation in the ambient atmosphere will most likely be driven by mixed sulfuric acid/MSA clusters clustering with both amines and ammonia.
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Affiliation(s)
- Bernadette Rosati
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
- Faculty
of Physics, University of Vienna, Boltzmanngasse 5, Vienna AT-1090, Austria
| | - Sigurd Christiansen
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
| | | | - Pontus Roldin
- Division
of Nuclear Physics, Lund University, P.O. Box 118, Lund SE-221
00, Sweden
| | - Mads Mørk Jensen
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
| | - Kai Wang
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
| | - Shamjad P. Moosakutty
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
- Clean Combustion
Research Center, King Abdullah University
of Science and Technology, Thuwal KSA-23955, Saudi Arabia
| | - Ditte Thomsen
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
| | - Camilla Salomonsen
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
| | - Noora Hyttinen
- Nano
and Molecular Systems Research Unit, University
of Oulu, P.O. Box 3000, Oulu FI-90014, Finland
- Department
of Applied Physics, University of Eastern
Finland, P.O. Box 1627, Kuopio FI-70211, Finland
| | - Jonas Elm
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
| | - Anders Feilberg
- Department
of Biological and Chemical Engineering, Aarhus University, Finlandsgade
12, Aarhus N DK-8200, Denmark
| | - Marianne Glasius
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
| | - Merete Bilde
- Department
of Chemistry, Aarhus University, Langelandsgade 140, Aarhus C DK-8000, Denmark
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