Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic
Size-segregated marine aerosols were collected at Mace Head Atmospheric Research Station (Ireland) during spring and autumn 2002 corresponding with the phytoplankton bloom periods in the North Atlantic. Strict control of the sampling, air mass back trajectory analysis, and analysis of pollutant trac...
Published in: | Journal of Geophysical Research |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Wiley-Blackwell
2004
|
Subjects: | |
Online Access: | http://hdl.handle.net/10379/8956 https://doi.org/10.1029/2004jd005137 |
id |
ftnuigalway:oai:aran.library.nuigalway.ie/:10379/8956 |
---|---|
record_format |
openpolar |
spelling |
ftnuigalway:oai:aran.library.nuigalway.ie/:10379/8956 2023-06-11T04:14:30+02:00 Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic Cavalli, F. 2004-01-01 http://hdl.handle.net/10379/8956 https://doi.org/10.1029/2004jd005137 unknown Wiley-Blackwell Journal of Geophysical Research Cavalli, F. (2004). Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic. Journal of Geophysical Research 109 , 0148-0227 http://hdl.handle.net/10379/8956 doi:10.1029/2004jd005137 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ organic marine aerosol size-dependent composition north atlantic experiment ace 1 cloud condensation nuclei sea-salt aerosol boundary-layer chemical-composition mace head hygroscopic properties carbonaceous aerosols atmospheric aerosols global distribution Article 2004 ftnuigalway https://doi.org/10.1029/2004jd005137 2023-05-28T18:04:38Z Size-segregated marine aerosols were collected at Mace Head Atmospheric Research Station (Ireland) during spring and autumn 2002 corresponding with the phytoplankton bloom periods in the North Atlantic. Strict control of the sampling, air mass back trajectory analysis, and analysis of pollutant tracers allowed the selection of a set of samples representative of clean marine conditions. A comprehensive chemical characterization of both (1) water-soluble and water-insoluble organic fraction and (2) water-soluble inorganic ions was performed. The selected samples illustrated a consistent picture in terms of chemical composition. The supermicron mode predominantly comprises sea-salt aerosol with a mass concentration of 10.16 +/- 0.80 mug m(-3), the remainder being non-sea-salt (nss) sulphate, 0.03 +/- 0.01 mug m(-3), and nitrate, 0.13 +/- 0.04 mug m(-3). By comparison, the mass of sea salt, nss sulphate, and nitrate in the submicron mode is found to be 0.39 +/- 0.08 mug m(-3), 0.26 +/- 0.04 mug m(-3), and 0.02 +/- 0.01 mug m(-3), respectively. Water-soluble organic carbon (WSOC) is observed in the submicron mode with a mass concentration of 0.25 +/- 0.04 mug m(-3), comparable to that of nss sulphate, and in the supermicron mode with a mass concentration of 0.17 +/- 0.04 mug m(-3). The WSOC to total carbon (TC) ratio is found to be 0.20 +/- 0.12 for the submicron fraction and 0.29 +/- 0.08 for the supermicron fraction, while the black carbon (BC) to TC ratio is, on average, 0.032 +/- 0.001 for both aerosol modes. The remaining carbon, water-insoluble organic carbon, contributes 0.66 +/- 0.11 mug m(-3) and 0.26 +/- 0.06 mug m(-3) to the submicron and supermicron modes, respectively and, thus, represents the dominant submicron aerosol species. Furthermore, the WSOC chemical composition comprises mainly aliphatic and only partially oxidized species and humic-like substances, resulting in appreciable surface-active properties. The observed organic matter chemical features (size-dependent concentration, hydrophobic nature ... Article in Journal/Newspaper North Atlantic National University of Ireland (NUI), Galway: ARAN Mace ENVELOPE(155.883,155.883,-81.417,-81.417) Journal of Geophysical Research 109 D24 |
institution |
Open Polar |
collection |
National University of Ireland (NUI), Galway: ARAN |
op_collection_id |
ftnuigalway |
language |
unknown |
topic |
organic marine aerosol size-dependent composition north atlantic experiment ace 1 cloud condensation nuclei sea-salt aerosol boundary-layer chemical-composition mace head hygroscopic properties carbonaceous aerosols atmospheric aerosols global distribution |
spellingShingle |
organic marine aerosol size-dependent composition north atlantic experiment ace 1 cloud condensation nuclei sea-salt aerosol boundary-layer chemical-composition mace head hygroscopic properties carbonaceous aerosols atmospheric aerosols global distribution Cavalli, F. Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic |
topic_facet |
organic marine aerosol size-dependent composition north atlantic experiment ace 1 cloud condensation nuclei sea-salt aerosol boundary-layer chemical-composition mace head hygroscopic properties carbonaceous aerosols atmospheric aerosols global distribution |
description |
Size-segregated marine aerosols were collected at Mace Head Atmospheric Research Station (Ireland) during spring and autumn 2002 corresponding with the phytoplankton bloom periods in the North Atlantic. Strict control of the sampling, air mass back trajectory analysis, and analysis of pollutant tracers allowed the selection of a set of samples representative of clean marine conditions. A comprehensive chemical characterization of both (1) water-soluble and water-insoluble organic fraction and (2) water-soluble inorganic ions was performed. The selected samples illustrated a consistent picture in terms of chemical composition. The supermicron mode predominantly comprises sea-salt aerosol with a mass concentration of 10.16 +/- 0.80 mug m(-3), the remainder being non-sea-salt (nss) sulphate, 0.03 +/- 0.01 mug m(-3), and nitrate, 0.13 +/- 0.04 mug m(-3). By comparison, the mass of sea salt, nss sulphate, and nitrate in the submicron mode is found to be 0.39 +/- 0.08 mug m(-3), 0.26 +/- 0.04 mug m(-3), and 0.02 +/- 0.01 mug m(-3), respectively. Water-soluble organic carbon (WSOC) is observed in the submicron mode with a mass concentration of 0.25 +/- 0.04 mug m(-3), comparable to that of nss sulphate, and in the supermicron mode with a mass concentration of 0.17 +/- 0.04 mug m(-3). The WSOC to total carbon (TC) ratio is found to be 0.20 +/- 0.12 for the submicron fraction and 0.29 +/- 0.08 for the supermicron fraction, while the black carbon (BC) to TC ratio is, on average, 0.032 +/- 0.001 for both aerosol modes. The remaining carbon, water-insoluble organic carbon, contributes 0.66 +/- 0.11 mug m(-3) and 0.26 +/- 0.06 mug m(-3) to the submicron and supermicron modes, respectively and, thus, represents the dominant submicron aerosol species. Furthermore, the WSOC chemical composition comprises mainly aliphatic and only partially oxidized species and humic-like substances, resulting in appreciable surface-active properties. The observed organic matter chemical features (size-dependent concentration, hydrophobic nature ... |
format |
Article in Journal/Newspaper |
author |
Cavalli, F. |
author_facet |
Cavalli, F. |
author_sort |
Cavalli, F. |
title |
Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic |
title_short |
Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic |
title_full |
Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic |
title_fullStr |
Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic |
title_full_unstemmed |
Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic |
title_sort |
advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic |
publisher |
Wiley-Blackwell |
publishDate |
2004 |
url |
http://hdl.handle.net/10379/8956 https://doi.org/10.1029/2004jd005137 |
long_lat |
ENVELOPE(155.883,155.883,-81.417,-81.417) |
geographic |
Mace |
geographic_facet |
Mace |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Journal of Geophysical Research Cavalli, F. (2004). Advances in characterization of size-resolved organic matter in marine aerosol over the north atlantic. Journal of Geophysical Research 109 , 0148-0227 http://hdl.handle.net/10379/8956 doi:10.1029/2004jd005137 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.1029/2004jd005137 |
container_title |
Journal of Geophysical Research |
container_volume |
109 |
container_issue |
D24 |
_version_ |
1768392558960967680 |