Water-Soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean
Water-soluble dicarboxylic acids (DCAs), ketoacids, and α-dicarbonyls in the marine aerosol samples collected over the Southern Ocean and western Pacific Ocean were determined. Oxalic acid was the most abundant species, followed by malonic acid and then succinic acid. It is suggested that aerosol co...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/5855 2023-05-15T18:24:09+02:00 Water-Soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean Wang, Haobo Kawamura, Kimitaka Yamazaki, Koji http://hdl.handle.net/2115/5855 https://doi.org/10.1007/s10874-006-1479-4 eng eng Springer http://hdl.handle.net/2115/5855 Journal of Atmospheric Chemistry, 53(1): 43-61 http://dx.doi.org/10.1007/s10874-006-1479-4 The original publication is available at www.springerlink.com global background latitudinal distributions photochemical reactions remote marine aerosols sources water-soluble organics 452 article (author version) fthokunivhus https://doi.org/10.1007/s10874-006-1479-4 2022-11-18T01:01:12Z Water-soluble dicarboxylic acids (DCAs), ketoacids, and α-dicarbonyls in the marine aerosol samples collected over the Southern Ocean and western Pacific Ocean were determined. Oxalic acid was the most abundant species, followed by malonic acid and then succinic acid. It is suggested that aerosol concentrations of the organics over the Southern Ocean in this work represent their global background levels. Over the Southern Ocean, total concentrations of DCAs ranged from 2.9 to 7.2 ng m(−3) (average: 4.5 ng m(−3)), ketoacids from 0.14 to 0.40 ng m(−3) (av.: 0.28 ng m(−3)), and dicarbonyls from 0.06 to 0.29 ng m(−3) (av.: 0.11 ng m(−3)). Over the western Pacific, total concentrations of DCAs ranged from 1.7 to 170 ng m(−3) (av.: 60 ng m(−3)), ketoacids from 0.08 to 5.3 ng m(−3) (av.: 1.8 ng m(−3)), and dicarbonyls from 0.03 to 4.6 ng m(−3) (av.: 0.95 ng m(−3)). DCAs over the western Pacific have constituted a large fraction of organic aerosols with a mean DCAs-C/TC (total carbon) of 7.0% (range: 0.59–14%). Such a high value was in contrast to the low DCAs-C/TC (av.: 1.8%; range: 0.89–4.0%) for the Southern Ocean aerosols. Based on the relative abundances and latitudinal distributions of these organics, we propose that long-range atmospheric transport is more important over the western Pacific Ocean, in contrast, in situ photochemical production is more significant over the Southern Ocean although absolute concentrations of the organics are much lower. Article in Journal/Newspaper Southern Ocean Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Pacific Southern Ocean Journal of Atmospheric Chemistry 53 1 43 61 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
global background latitudinal distributions photochemical reactions remote marine aerosols sources water-soluble organics 452 |
spellingShingle |
global background latitudinal distributions photochemical reactions remote marine aerosols sources water-soluble organics 452 Wang, Haobo Kawamura, Kimitaka Yamazaki, Koji Water-Soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean |
topic_facet |
global background latitudinal distributions photochemical reactions remote marine aerosols sources water-soluble organics 452 |
description |
Water-soluble dicarboxylic acids (DCAs), ketoacids, and α-dicarbonyls in the marine aerosol samples collected over the Southern Ocean and western Pacific Ocean were determined. Oxalic acid was the most abundant species, followed by malonic acid and then succinic acid. It is suggested that aerosol concentrations of the organics over the Southern Ocean in this work represent their global background levels. Over the Southern Ocean, total concentrations of DCAs ranged from 2.9 to 7.2 ng m(−3) (average: 4.5 ng m(−3)), ketoacids from 0.14 to 0.40 ng m(−3) (av.: 0.28 ng m(−3)), and dicarbonyls from 0.06 to 0.29 ng m(−3) (av.: 0.11 ng m(−3)). Over the western Pacific, total concentrations of DCAs ranged from 1.7 to 170 ng m(−3) (av.: 60 ng m(−3)), ketoacids from 0.08 to 5.3 ng m(−3) (av.: 1.8 ng m(−3)), and dicarbonyls from 0.03 to 4.6 ng m(−3) (av.: 0.95 ng m(−3)). DCAs over the western Pacific have constituted a large fraction of organic aerosols with a mean DCAs-C/TC (total carbon) of 7.0% (range: 0.59–14%). Such a high value was in contrast to the low DCAs-C/TC (av.: 1.8%; range: 0.89–4.0%) for the Southern Ocean aerosols. Based on the relative abundances and latitudinal distributions of these organics, we propose that long-range atmospheric transport is more important over the western Pacific Ocean, in contrast, in situ photochemical production is more significant over the Southern Ocean although absolute concentrations of the organics are much lower. |
format |
Article in Journal/Newspaper |
author |
Wang, Haobo Kawamura, Kimitaka Yamazaki, Koji |
author_facet |
Wang, Haobo Kawamura, Kimitaka Yamazaki, Koji |
author_sort |
Wang, Haobo |
title |
Water-Soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean |
title_short |
Water-Soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean |
title_full |
Water-Soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean |
title_fullStr |
Water-Soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean |
title_full_unstemmed |
Water-Soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean |
title_sort |
water-soluble dicarboxylic acids, ketoacids and dicarbonyls in the atmospheric aerosols over the southern ocean and western pacific ocean |
publisher |
Springer |
url |
http://hdl.handle.net/2115/5855 https://doi.org/10.1007/s10874-006-1479-4 |
geographic |
Pacific Southern Ocean |
geographic_facet |
Pacific Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://hdl.handle.net/2115/5855 Journal of Atmospheric Chemistry, 53(1): 43-61 http://dx.doi.org/10.1007/s10874-006-1479-4 |
op_rights |
The original publication is available at www.springerlink.com |
op_doi |
https://doi.org/10.1007/s10874-006-1479-4 |
container_title |
Journal of Atmospheric Chemistry |
container_volume |
53 |
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1 |
container_start_page |
43 |
op_container_end_page |
61 |
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1766204477660987392 |