Hygroscopicity and CCN potential of DMS-derived aerosol particles
<p dir="ltr">Dimethyl sulfide (DMS) is emitted by phytoplankton species in the oceans and constitutes the largest source of naturally emitted sulfur to the atmosphere. The climate impact of secondary particles, formed through the oxidation of DMS by hydroxyl radicals, is still elusiv...
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| منشور في: |
2022
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إضافة وسم
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| _version_ | 1864513516847759360 |
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| author | Bernadette Rosati (7498127) |
| author2 | Sini Isokääntä (18300826) Sigurd Christiansen (6092318) Mads Mørk Jensen (10452119) Shamjad P. Moosakutty (6576695) Robin Wollesen de Jonge (10452116) Andreas Massling (2366128) Marianne Glasius (1288461) Jonas Elm (1390975) Annele Virtanen (1352799) Merete Bilde (1289100) |
| author2_role | author author author author author author author author author author |
| author_facet | Bernadette Rosati (7498127) Sini Isokääntä (18300826) Sigurd Christiansen (6092318) Mads Mørk Jensen (10452119) Shamjad P. Moosakutty (6576695) Robin Wollesen de Jonge (10452116) Andreas Massling (2366128) Marianne Glasius (1288461) Jonas Elm (1390975) Annele Virtanen (1352799) Merete Bilde (1289100) |
| author_role | author |
| dc.creator.none.fl_str_mv | Bernadette Rosati (7498127) Sini Isokääntä (18300826) Sigurd Christiansen (6092318) Mads Mørk Jensen (10452119) Shamjad P. Moosakutty (6576695) Robin Wollesen de Jonge (10452116) Andreas Massling (2366128) Marianne Glasius (1288461) Jonas Elm (1390975) Annele Virtanen (1352799) Merete Bilde (1289100) |
| dc.date.none.fl_str_mv | 2022-10-19T03:00:00Z |
| dc.identifier.none.fl_str_mv | 10.5194/acp-22-13449-2022 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Hygroscopicity_and_CCN_potential_of_DMS-derived_aerosol_particles/25539604 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Earth sciences Atmospheric sciences Environmental sciences Climate change impacts and adaptation Dimethyl sulfide (DMS) Ocean emissions Sulfur emissions Cloud condensation nuclei (CCN) Methanesulfonic acid (MSA) |
| dc.title.none.fl_str_mv | Hygroscopicity and CCN potential of DMS-derived aerosol particles |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">Dimethyl sulfide (DMS) is emitted by phytoplankton species in the oceans and constitutes the largest source of naturally emitted sulfur to the atmosphere. The climate impact of secondary particles, formed through the oxidation of DMS by hydroxyl radicals, is still elusive. This study investigates the hygroscopicity and cloud condensation nuclei activity of such particles and discusses the results in relation to their chemical composition. We show that mean hygroscopicity parameters, κ, during an experiment for particles of 80 nm in diameter range from 0.46 to 0.52 or higher, as measured at both sub- and supersaturated water vapour conditions. Ageing of the particles leads to an increase in κ from, for example, 0.50 to 0.58 over the course of 3 h (Exp. 7). Aerosol mass spectrometer measurements from this study indicate that this change most probably stems from a change in chemical composition leading to slightly higher fractions of ammonium sulfate compared to methanesulfonic acid (MSA) within the particles with ageing time. Lowering the temperature to 258 K increases κ slightly, particularly for small particles. These κ values are well comparable to previously reported model values for MSA or mixtures between MSA and ammonium sulfate. Particle nucleation and growth rates suggest a clear temperature dependence, with slower rates at cold temperatures. Quantum chemical calculations show that gas-phase MSA clusters are predominantly not hydrated, even at high humidity conditions, indicating that their gas-phase chemistry should be independent of relative humidity.</p><h2>Other Information</h2><p dir="ltr">Published in: Atmospheric Chemistry and Physics<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.5194/acp-22-13449-2022" target="_blank">https://dx.doi.org/10.5194/acp-22-13449-2022</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_08977b926663fd9724c0e2649720381e |
| identifier_str_mv | 10.5194/acp-22-13449-2022 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/25539604 |
| publishDate | 2022 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Hygroscopicity and CCN potential of DMS-derived aerosol particlesBernadette Rosati (7498127)Sini Isokääntä (18300826)Sigurd Christiansen (6092318)Mads Mørk Jensen (10452119)Shamjad P. Moosakutty (6576695)Robin Wollesen de Jonge (10452116)Andreas Massling (2366128)Marianne Glasius (1288461)Jonas Elm (1390975)Annele Virtanen (1352799)Merete Bilde (1289100)Earth sciencesAtmospheric sciencesEnvironmental sciencesClimate change impacts and adaptationDimethyl sulfide (DMS)Ocean emissionsSulfur emissionsCloud condensation nuclei (CCN)Methanesulfonic acid (MSA)<p dir="ltr">Dimethyl sulfide (DMS) is emitted by phytoplankton species in the oceans and constitutes the largest source of naturally emitted sulfur to the atmosphere. The climate impact of secondary particles, formed through the oxidation of DMS by hydroxyl radicals, is still elusive. This study investigates the hygroscopicity and cloud condensation nuclei activity of such particles and discusses the results in relation to their chemical composition. We show that mean hygroscopicity parameters, κ, during an experiment for particles of 80 nm in diameter range from 0.46 to 0.52 or higher, as measured at both sub- and supersaturated water vapour conditions. Ageing of the particles leads to an increase in κ from, for example, 0.50 to 0.58 over the course of 3 h (Exp. 7). Aerosol mass spectrometer measurements from this study indicate that this change most probably stems from a change in chemical composition leading to slightly higher fractions of ammonium sulfate compared to methanesulfonic acid (MSA) within the particles with ageing time. Lowering the temperature to 258 K increases κ slightly, particularly for small particles. These κ values are well comparable to previously reported model values for MSA or mixtures between MSA and ammonium sulfate. Particle nucleation and growth rates suggest a clear temperature dependence, with slower rates at cold temperatures. Quantum chemical calculations show that gas-phase MSA clusters are predominantly not hydrated, even at high humidity conditions, indicating that their gas-phase chemistry should be independent of relative humidity.</p><h2>Other Information</h2><p dir="ltr">Published in: Atmospheric Chemistry and Physics<br>License: <a href="https://creativecommons.org/licenses/by/4.0/" target="_blank">https://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.5194/acp-22-13449-2022" target="_blank">https://dx.doi.org/10.5194/acp-22-13449-2022</a></p>2022-10-19T03:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.5194/acp-22-13449-2022https://figshare.com/articles/journal_contribution/Hygroscopicity_and_CCN_potential_of_DMS-derived_aerosol_particles/25539604CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/255396042022-10-19T03:00:00Z |
| spellingShingle | Hygroscopicity and CCN potential of DMS-derived aerosol particles Bernadette Rosati (7498127) Earth sciences Atmospheric sciences Environmental sciences Climate change impacts and adaptation Dimethyl sulfide (DMS) Ocean emissions Sulfur emissions Cloud condensation nuclei (CCN) Methanesulfonic acid (MSA) |
| status_str | publishedVersion |
| title | Hygroscopicity and CCN potential of DMS-derived aerosol particles |
| title_full | Hygroscopicity and CCN potential of DMS-derived aerosol particles |
| title_fullStr | Hygroscopicity and CCN potential of DMS-derived aerosol particles |
| title_full_unstemmed | Hygroscopicity and CCN potential of DMS-derived aerosol particles |
| title_short | Hygroscopicity and CCN potential of DMS-derived aerosol particles |
| title_sort | Hygroscopicity and CCN potential of DMS-derived aerosol particles |
| topic | Earth sciences Atmospheric sciences Environmental sciences Climate change impacts and adaptation Dimethyl sulfide (DMS) Ocean emissions Sulfur emissions Cloud condensation nuclei (CCN) Methanesulfonic acid (MSA) |