Contribution of water-soluble organic matter from multiple marine geographic eco-regions to aerosols around Antarctica

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Contribution of water-soluble organic matter from multiple marine geographic eco-regions to aerosols around Antarctica. / Rinaldi, Matteo ; Paglione, Marco ; Decesari, Stefano ; Harrison, Roy; Beddows, David C.S.; Ovadnevaite, Jurgita; Ceburnis, Darius ; O´Dowd, Colin ; Simó, Rafel; Dall'Osto, Manuel.

In: Environmental Science and Technology, Vol. 54, No. 13, 07.07.2020, p. 7807-7817 .

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Rinaldi, Matteo ; Paglione, Marco ; Decesari, Stefano ; Harrison, Roy ; Beddows, David C.S. ; Ovadnevaite, Jurgita ; Ceburnis, Darius ; O´Dowd, Colin ; Simó, Rafel ; Dall'Osto, Manuel. / Contribution of water-soluble organic matter from multiple marine geographic eco-regions to aerosols around Antarctica. In: Environmental Science and Technology. 2020 ; Vol. 54, No. 13. pp. 7807-7817 .

Bibtex

@article{0b068255537a4a52b15457109524edd9,
title = "Contribution of water-soluble organic matter from multiple marine geographic eco-regions to aerosols around Antarctica",
abstract = "We present shipborne measurements of size-resolved concentrationsof aerosol components across ocean waters next to the Antarctic Peninsula,South Orkney Islands, and South Georgia Island, evidencing aerosol featuresassociated with distinct eco-regions. Nonmethanesulfonic acid Water-SolubleOrganic Matter (WSOM) represented 6−8% and 11−22% of the aerosol PM1mass originated in open ocean (OO) and sea ice (SI) regions, respectively. Othermajor components included sea salt (86−88% OO, 24−27% SI), non sea saltsulfate (3−4% OO, 35−40% SI), and MSA (1−2% OO, 11−12% SI). Thechemical composition of WSOM encompasses secondary organic components with diverse behaviors: while alkylamine concentrations were higher in SI air masses, oxalic acid showed higher concentrations in the open ocean air. Our online singleparticle mass spectrometry data exclude a widespread source from sea bird colonies, while the secondary production of oxalic acid and sulfur-containing organic species via cloud processing is suggested. We claim that the potential impact of the sympagic planktonic ecosystem on aerosol composition has been overlooked in past studies, and multiple eco-regions act as distinct aerosol sources around Antarctica.",
author = "Matteo Rinaldi and Marco Paglione and Stefano Decesari and Roy Harrison and Beddows, {David C.S.} and Jurgita Ovadnevaite and Darius Ceburnis and Colin O´Dowd and Rafel Sim{\'o} and Manuel Dall'Osto",
year = "2020",
month = jul,
day = "7",
doi = "10.1021/acs.est.0c00695",
language = "English",
volume = "54",
pages = "7807--7817 ",
journal = "Environmental Science and Technology",
issn = "0013-936X",
publisher = "American Chemical Society",
number = "13",

}

RIS

TY - JOUR

T1 - Contribution of water-soluble organic matter from multiple marine geographic eco-regions to aerosols around Antarctica

AU - Rinaldi, Matteo

AU - Paglione, Marco

AU - Decesari, Stefano

AU - Harrison, Roy

AU - Beddows, David C.S.

AU - Ovadnevaite, Jurgita

AU - Ceburnis, Darius

AU - O´Dowd, Colin

AU - Simó, Rafel

AU - Dall'Osto, Manuel

PY - 2020/7/7

Y1 - 2020/7/7

N2 - We present shipborne measurements of size-resolved concentrationsof aerosol components across ocean waters next to the Antarctic Peninsula,South Orkney Islands, and South Georgia Island, evidencing aerosol featuresassociated with distinct eco-regions. Nonmethanesulfonic acid Water-SolubleOrganic Matter (WSOM) represented 6−8% and 11−22% of the aerosol PM1mass originated in open ocean (OO) and sea ice (SI) regions, respectively. Othermajor components included sea salt (86−88% OO, 24−27% SI), non sea saltsulfate (3−4% OO, 35−40% SI), and MSA (1−2% OO, 11−12% SI). Thechemical composition of WSOM encompasses secondary organic components with diverse behaviors: while alkylamine concentrations were higher in SI air masses, oxalic acid showed higher concentrations in the open ocean air. Our online singleparticle mass spectrometry data exclude a widespread source from sea bird colonies, while the secondary production of oxalic acid and sulfur-containing organic species via cloud processing is suggested. We claim that the potential impact of the sympagic planktonic ecosystem on aerosol composition has been overlooked in past studies, and multiple eco-regions act as distinct aerosol sources around Antarctica.

AB - We present shipborne measurements of size-resolved concentrationsof aerosol components across ocean waters next to the Antarctic Peninsula,South Orkney Islands, and South Georgia Island, evidencing aerosol featuresassociated with distinct eco-regions. Nonmethanesulfonic acid Water-SolubleOrganic Matter (WSOM) represented 6−8% and 11−22% of the aerosol PM1mass originated in open ocean (OO) and sea ice (SI) regions, respectively. Othermajor components included sea salt (86−88% OO, 24−27% SI), non sea saltsulfate (3−4% OO, 35−40% SI), and MSA (1−2% OO, 11−12% SI). Thechemical composition of WSOM encompasses secondary organic components with diverse behaviors: while alkylamine concentrations were higher in SI air masses, oxalic acid showed higher concentrations in the open ocean air. Our online singleparticle mass spectrometry data exclude a widespread source from sea bird colonies, while the secondary production of oxalic acid and sulfur-containing organic species via cloud processing is suggested. We claim that the potential impact of the sympagic planktonic ecosystem on aerosol composition has been overlooked in past studies, and multiple eco-regions act as distinct aerosol sources around Antarctica.

UR - http://www.scopus.com/inward/record.url?scp=85088208289&partnerID=8YFLogxK

U2 - 10.1021/acs.est.0c00695

DO - 10.1021/acs.est.0c00695

M3 - Article

VL - 54

SP - 7807

EP - 7817

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 0013-936X

IS - 13

ER -