Measurements of particulate methanesulfonic acid above the remote Arctic Ocean using a high resolution aerosol mass spectrometer
9 pages, 6 figures, supplementary data https://doi.org/10.1016/j.atmosenv.2024.120538.-- Data availability: Data will be made available on request
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| Language: | English |
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Elsevier
2024-08
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| Subjects: | MSA, Marine aerosol, Oxidation path, Reference MSA/nss-SO4 value, HR-ToF-AMS, |
| Online Access: | http://hdl.handle.net/10261/366292 |
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dig-icm-es-10261-3662922024-08-23T06:34:48Z Measurements of particulate methanesulfonic acid above the remote Arctic Ocean using a high resolution aerosol mass spectrometer Zhang, Yangmei Sun, Junying Shen, Xiaojing Chandani, Vipul Lal Du, Mao Song, Congbo Dai, Yuqing Hu, Guoyuan Yang, Mingxi Tilstone, Gavin H. Jordan, Tom Dall'Olmo, Giorgio Liu, Quan Nemitz, Eiko Callaghan, Anna Brean, James Sommariva, Roberto Beddows, David C. S. Langford, Ben Bloss, William J. Acton, William Harrison, Roy M. Dall'Osto, Manuel Shi, Zongbo National Natural Science Foundation of China Natural Environment Research Council (UK) European Space Agency Agencia Estatal de Investigación (España) MSA Marine aerosol Oxidation path Reference MSA/nss-SO4 value HR-ToF-AMS 9 pages, 6 figures, supplementary data https://doi.org/10.1016/j.atmosenv.2024.120538.-- Data availability: Data will be made available on request Methanesulfonic acid (MSA) is an important product from the oxidation of dimethyl sulfide (DMS), and thus is often used as a tracer for marine biogenic sources and secondary organic aerosol. MSA also contributes to aerosol mass and potentially to the formation of cloud condensation nuclei and new particles. However, measurements of MSA at high temporal resolution in the remote Arctic are scarce, which limits our understanding of its formation, climate change impact and regional transport. Here, we applied a validated quantification method to determine the mass concentration of MSA and non-sea salt sulfate (nss-SO4) in PM2.5 in the marine boundary layer, using a high resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) during a research cruise to the Arctic and North Atlantic Ocean, between 55 °N and 68 °N (26th May to June 23, 2022). With this method, the concentrations of MSA in the remote Arctic marine boundary layer were determined for the first time. Results show that the average MSA concentration was 0.025 ± 0.03 μg m−3, ranging from <0.01 to 0.32 μg m−3. The lowest MSA level was found towards the northern leg of the cruise (near Sisimut (67 °N)) with air masses from sea ice over the northern polar region, and the highest MSA concentrations were observed over the Atlantic open ocean. The diurnal cycles of gas MSA, particulate MSA and nss-SO4 peaked in the afternoon, about one hour later than that of peak of solar radiation, which suggests that photochemical process is an important mechanism for the conversion of DMS into MSA above the remote ocean. The mass ratio of MSA to nss-SO4 (MSA/nss-SO4) presents a temperature dependence, which indicates that the addition branching pathway favors MSA formation, while thermal decay of intermediate radicals could be a possible pathway for sulfate formation. Finally, we found that the MSA/nss-SO4 ratio is around 0.22-0.25 in the remote northern marine atmosphere This work was funded by the National Natural Science Foundation of China (Grant No. 42175128), Sci & Tech Development Foundation of CAMS (Grant No. 2022KJ005, 2022KJ002), Basic Research Fund of CAMS (2023Z012). DY151 cruise is funded by UK Natural Environment Research Council under the following grants: NE/S00579X/1 (PI Zongbo Shi), NE/S005587/1 (PI Anna Jones), and NE/T00648X/1 (PI Ben Murray). GHT, TJ and GD’O were funded by AMT4CO2Flux (contract number 4000136286/21/NL/FF/ab) from the European Space Agency With the institutional support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S) Peer reviewed 2024-08-23T06:34:48Z 2024-08-23T06:34:48Z 2024-08 artículo Atmospheric Environment 331: 120538 (2024) 1352-2310 CEX2019-000928-S http://hdl.handle.net/10261/366292 10.1016/j.atmosenv.2024.120538 1878-2442 en Postprint https://doi.org/10.1016/j.atmosenv.2024.120538 Sí embargo_20250831 Elsevier |
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MSA Marine aerosol Oxidation path Reference MSA/nss-SO4 value HR-ToF-AMS MSA Marine aerosol Oxidation path Reference MSA/nss-SO4 value HR-ToF-AMS |
| spellingShingle |
MSA Marine aerosol Oxidation path Reference MSA/nss-SO4 value HR-ToF-AMS MSA Marine aerosol Oxidation path Reference MSA/nss-SO4 value HR-ToF-AMS Zhang, Yangmei Sun, Junying Shen, Xiaojing Chandani, Vipul Lal Du, Mao Song, Congbo Dai, Yuqing Hu, Guoyuan Yang, Mingxi Tilstone, Gavin H. Jordan, Tom Dall'Olmo, Giorgio Liu, Quan Nemitz, Eiko Callaghan, Anna Brean, James Sommariva, Roberto Beddows, David C. S. Langford, Ben Bloss, William J. Acton, William Harrison, Roy M. Dall'Osto, Manuel Shi, Zongbo Measurements of particulate methanesulfonic acid above the remote Arctic Ocean using a high resolution aerosol mass spectrometer |
| description |
9 pages, 6 figures, supplementary data https://doi.org/10.1016/j.atmosenv.2024.120538.-- Data availability: Data will be made available on request |
| author2 |
National Natural Science Foundation of China |
| author_facet |
National Natural Science Foundation of China Zhang, Yangmei Sun, Junying Shen, Xiaojing Chandani, Vipul Lal Du, Mao Song, Congbo Dai, Yuqing Hu, Guoyuan Yang, Mingxi Tilstone, Gavin H. Jordan, Tom Dall'Olmo, Giorgio Liu, Quan Nemitz, Eiko Callaghan, Anna Brean, James Sommariva, Roberto Beddows, David C. S. Langford, Ben Bloss, William J. Acton, William Harrison, Roy M. Dall'Osto, Manuel Shi, Zongbo |
| format |
artículo |
| topic_facet |
MSA Marine aerosol Oxidation path Reference MSA/nss-SO4 value HR-ToF-AMS |
| author |
Zhang, Yangmei Sun, Junying Shen, Xiaojing Chandani, Vipul Lal Du, Mao Song, Congbo Dai, Yuqing Hu, Guoyuan Yang, Mingxi Tilstone, Gavin H. Jordan, Tom Dall'Olmo, Giorgio Liu, Quan Nemitz, Eiko Callaghan, Anna Brean, James Sommariva, Roberto Beddows, David C. S. Langford, Ben Bloss, William J. Acton, William Harrison, Roy M. Dall'Osto, Manuel Shi, Zongbo |
| author_sort |
Zhang, Yangmei |
| title |
Measurements of particulate methanesulfonic acid above the remote Arctic Ocean using a high resolution aerosol mass spectrometer |
| title_short |
Measurements of particulate methanesulfonic acid above the remote Arctic Ocean using a high resolution aerosol mass spectrometer |
| title_full |
Measurements of particulate methanesulfonic acid above the remote Arctic Ocean using a high resolution aerosol mass spectrometer |
| title_fullStr |
Measurements of particulate methanesulfonic acid above the remote Arctic Ocean using a high resolution aerosol mass spectrometer |
| title_full_unstemmed |
Measurements of particulate methanesulfonic acid above the remote Arctic Ocean using a high resolution aerosol mass spectrometer |
| title_sort |
measurements of particulate methanesulfonic acid above the remote arctic ocean using a high resolution aerosol mass spectrometer |
| publisher |
Elsevier |
| publishDate |
2024-08 |
| url |
http://hdl.handle.net/10261/366292 |
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