Compositional variations of sea-salt-mode aerosol particles from the North Atlantic
Individual sea-salt-mode aerosol particles collected during the Atlantic Stratocumulus Transition Experiment/Marine Aerosol and Gas Exchange (ASTEX/MAGE) experiment in June 1992 were studied using transmission electron microscopy in both imaging and analysis modes. The set of eight samples provided...
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American Geophysical Union (AGU)
1995
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Online Access: | https://real.mtak.hu/3430/ https://real.mtak.hu/3430/1/1039022.pdf https://doi.org/10.1029/95JD01636 |
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ftmtak:oai:real.mtak.hu:3430 2024-06-09T07:48:16+00:00 Compositional variations of sea-salt-mode aerosol particles from the North Atlantic Pósfai, Mihály Anderson, James R. Buseck, Peter R. Sievering, Herman 1995-11-20 application/pdf https://real.mtak.hu/3430/ https://real.mtak.hu/3430/1/1039022.pdf https://doi.org/10.1029/95JD01636 en eng American Geophysical Union (AGU) https://real.mtak.hu/3430/1/1039022.pdf Pósfai, Mihály and Anderson, James R. and Buseck, Peter R. and Sievering, Herman (1995) Compositional variations of sea-salt-mode aerosol particles from the North Atlantic. Journal of Geophysical Research, 100 (D11). pp. 23063-23074. ISSN 2169-897X QD06 Mineralogy / ásványtan QE Geology / földtudományok Article PeerReviewed 1995 ftmtak https://doi.org/10.1029/95JD01636 2024-05-15T13:44:04Z Individual sea-salt-mode aerosol particles collected during the Atlantic Stratocumulus Transition Experiment/Marine Aerosol and Gas Exchange (ASTEX/MAGE) experiment in June 1992 were studied using transmission electron microscopy in both imaging and analysis modes. The set of eight samples provided an opportunity to compare ''clean,'' ''intermediate,'' and ''dirty'' oceanic aerosols. In the clean samples, major species include NaCl, mixed-cation (Na, Mg, K, and Ca) sulfates, and in some particles, NaNO3. The same compounds also occur in intermediate samples, but compositional groups can be distinguished that are characterized by low- and high-Cl losses from sea salt. In these samples, most Cl loss is compensated by NaNO3 formation. Several compositional groups occur in the dirty samples; these include, in addition to the particle types in clean and intermediate samples, Na2SO4 (with minor Mg, K, and Ca), (NH4)(2)SO4, and silicates. The uniform compositions of sea-salt-mode particles in the clean samples suggest that the same process was acting on all particles. Their excess sulfate and nitrate probably formed through the oxidation of SO2 in the sea-salt aerosol water and by reactions between NOx and NaCl. On the other hand, distinct compositional groups in the dirty samples reveal that long-range transport of continental air masses resulted in the mixing of aerosols that were exposed to different conditions. In addition to O-3 oxidation, cloud processing may have contributed to the formation of excess sulfate in these samples. Article in Journal/Newspaper North Atlantic MTAK: REAL (Library and Information Centre of the Hungarian Academy of Sciences Journal of Geophysical Research 100 D11 23063 |
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Open Polar |
collection |
MTAK: REAL (Library and Information Centre of the Hungarian Academy of Sciences |
op_collection_id |
ftmtak |
language |
English |
topic |
QD06 Mineralogy / ásványtan QE Geology / földtudományok |
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QD06 Mineralogy / ásványtan QE Geology / földtudományok Pósfai, Mihály Anderson, James R. Buseck, Peter R. Sievering, Herman Compositional variations of sea-salt-mode aerosol particles from the North Atlantic |
topic_facet |
QD06 Mineralogy / ásványtan QE Geology / földtudományok |
description |
Individual sea-salt-mode aerosol particles collected during the Atlantic Stratocumulus Transition Experiment/Marine Aerosol and Gas Exchange (ASTEX/MAGE) experiment in June 1992 were studied using transmission electron microscopy in both imaging and analysis modes. The set of eight samples provided an opportunity to compare ''clean,'' ''intermediate,'' and ''dirty'' oceanic aerosols. In the clean samples, major species include NaCl, mixed-cation (Na, Mg, K, and Ca) sulfates, and in some particles, NaNO3. The same compounds also occur in intermediate samples, but compositional groups can be distinguished that are characterized by low- and high-Cl losses from sea salt. In these samples, most Cl loss is compensated by NaNO3 formation. Several compositional groups occur in the dirty samples; these include, in addition to the particle types in clean and intermediate samples, Na2SO4 (with minor Mg, K, and Ca), (NH4)(2)SO4, and silicates. The uniform compositions of sea-salt-mode particles in the clean samples suggest that the same process was acting on all particles. Their excess sulfate and nitrate probably formed through the oxidation of SO2 in the sea-salt aerosol water and by reactions between NOx and NaCl. On the other hand, distinct compositional groups in the dirty samples reveal that long-range transport of continental air masses resulted in the mixing of aerosols that were exposed to different conditions. In addition to O-3 oxidation, cloud processing may have contributed to the formation of excess sulfate in these samples. |
format |
Article in Journal/Newspaper |
author |
Pósfai, Mihály Anderson, James R. Buseck, Peter R. Sievering, Herman |
author_facet |
Pósfai, Mihály Anderson, James R. Buseck, Peter R. Sievering, Herman |
author_sort |
Pósfai, Mihály |
title |
Compositional variations of sea-salt-mode aerosol particles from the North Atlantic |
title_short |
Compositional variations of sea-salt-mode aerosol particles from the North Atlantic |
title_full |
Compositional variations of sea-salt-mode aerosol particles from the North Atlantic |
title_fullStr |
Compositional variations of sea-salt-mode aerosol particles from the North Atlantic |
title_full_unstemmed |
Compositional variations of sea-salt-mode aerosol particles from the North Atlantic |
title_sort |
compositional variations of sea-salt-mode aerosol particles from the north atlantic |
publisher |
American Geophysical Union (AGU) |
publishDate |
1995 |
url |
https://real.mtak.hu/3430/ https://real.mtak.hu/3430/1/1039022.pdf https://doi.org/10.1029/95JD01636 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://real.mtak.hu/3430/1/1039022.pdf Pósfai, Mihály and Anderson, James R. and Buseck, Peter R. and Sievering, Herman (1995) Compositional variations of sea-salt-mode aerosol particles from the North Atlantic. Journal of Geophysical Research, 100 (D11). pp. 23063-23074. ISSN 2169-897X |
op_doi |
https://doi.org/10.1029/95JD01636 |
container_title |
Journal of Geophysical Research |
container_volume |
100 |
container_issue |
D11 |
container_start_page |
23063 |
_version_ |
1801379925262860288 |