Molecular Distributions and Compound-Specific Stable Carbon Isotopic Compositions of Plant Wax n-Alkanes in Marine Aerosols along a North–South Transect in the Arctic–Northwest Pacific Region
A geographical source of n-alkanes in marine aerosols was assessed along a North–South transect in the Arctic–Northwest Pacific region. Marine aerosol samples were collected during the ARA08 cruise with the R/V Araon between 28 August and 28 September 2017. We investigated molecular distributions of...
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ftmdpi:oai:mdpi.com:/2073-4433/11/5/499/ 2023-08-20T04:03:45+02:00 Molecular Distributions and Compound-Specific Stable Carbon Isotopic Compositions of Plant Wax n-Alkanes in Marine Aerosols along a North–South Transect in the Arctic–Northwest Pacific Region Jung-Hyun Kim Jiyeon Park Sol-Bin Kim Kyung-Hoon Shin Sookwan Kim Yeontae Gim agris 2020-05-13 application/pdf https://doi.org/10.3390/atmos11050499 EN eng Multidisciplinary Digital Publishing Institute Aerosols https://dx.doi.org/10.3390/atmos11050499 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 11; Issue 5; Pages: 499 marine aerosol n -alkanes compound-specific carbon isotopes Arctic Ocean northwest Pacific Ocean Text 2020 ftmdpi https://doi.org/10.3390/atmos11050499 2023-07-31T23:29:37Z A geographical source of n-alkanes in marine aerosols was assessed along a North–South transect in the Arctic–Northwest Pacific region. Marine aerosol samples were collected during the ARA08 cruise with the R/V Araon between 28 August and 28 September 2017. We investigated molecular distributions of n-alkanes (homologous series of C16 to C34) and compound-specific stable carbon isotopes (δ13C) of n-C27, n-C29, and n-C31. Unresolved complex mixtures (UCM) showed a latitudinal trend from the Arctic Ocean to the northwest Pacific Ocean, highlighting an increasing influence of the plume of polluted air exported from East Asian countries. The anthropogenic input was further evidenced by high U/R ratios (>5) and low CPI17–23 (0.6–1.4). The occurrence of high molecular weight (HMW) n-alkanes with high CPI27–31 (>3) indicated the biogenic input of terrestrial higher plant leaf waxes in all studied samples. The δ13C of HMW n-alkanes was influenced by both the relative contributions from the C3/C4 plant sources and from fossil fuel combustions. The back-trajectory analyses provided evidence that changes in molecular distributions and δ13C of n-alkanes were due to the long-range atmospheric transport of anthropogenic and biogenic organic materials from North American and East Asian countries to the Arctic Ocean and the remote northwest Pacific Ocean, respectively. Text Arctic Arctic Ocean MDPI Open Access Publishing Arctic Arctic Ocean Pacific Atmosphere 11 5 499 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
marine aerosol n -alkanes compound-specific carbon isotopes Arctic Ocean northwest Pacific Ocean |
spellingShingle |
marine aerosol n -alkanes compound-specific carbon isotopes Arctic Ocean northwest Pacific Ocean Jung-Hyun Kim Jiyeon Park Sol-Bin Kim Kyung-Hoon Shin Sookwan Kim Yeontae Gim Molecular Distributions and Compound-Specific Stable Carbon Isotopic Compositions of Plant Wax n-Alkanes in Marine Aerosols along a North–South Transect in the Arctic–Northwest Pacific Region |
topic_facet |
marine aerosol n -alkanes compound-specific carbon isotopes Arctic Ocean northwest Pacific Ocean |
description |
A geographical source of n-alkanes in marine aerosols was assessed along a North–South transect in the Arctic–Northwest Pacific region. Marine aerosol samples were collected during the ARA08 cruise with the R/V Araon between 28 August and 28 September 2017. We investigated molecular distributions of n-alkanes (homologous series of C16 to C34) and compound-specific stable carbon isotopes (δ13C) of n-C27, n-C29, and n-C31. Unresolved complex mixtures (UCM) showed a latitudinal trend from the Arctic Ocean to the northwest Pacific Ocean, highlighting an increasing influence of the plume of polluted air exported from East Asian countries. The anthropogenic input was further evidenced by high U/R ratios (>5) and low CPI17–23 (0.6–1.4). The occurrence of high molecular weight (HMW) n-alkanes with high CPI27–31 (>3) indicated the biogenic input of terrestrial higher plant leaf waxes in all studied samples. The δ13C of HMW n-alkanes was influenced by both the relative contributions from the C3/C4 plant sources and from fossil fuel combustions. The back-trajectory analyses provided evidence that changes in molecular distributions and δ13C of n-alkanes were due to the long-range atmospheric transport of anthropogenic and biogenic organic materials from North American and East Asian countries to the Arctic Ocean and the remote northwest Pacific Ocean, respectively. |
format |
Text |
author |
Jung-Hyun Kim Jiyeon Park Sol-Bin Kim Kyung-Hoon Shin Sookwan Kim Yeontae Gim |
author_facet |
Jung-Hyun Kim Jiyeon Park Sol-Bin Kim Kyung-Hoon Shin Sookwan Kim Yeontae Gim |
author_sort |
Jung-Hyun Kim |
title |
Molecular Distributions and Compound-Specific Stable Carbon Isotopic Compositions of Plant Wax n-Alkanes in Marine Aerosols along a North–South Transect in the Arctic–Northwest Pacific Region |
title_short |
Molecular Distributions and Compound-Specific Stable Carbon Isotopic Compositions of Plant Wax n-Alkanes in Marine Aerosols along a North–South Transect in the Arctic–Northwest Pacific Region |
title_full |
Molecular Distributions and Compound-Specific Stable Carbon Isotopic Compositions of Plant Wax n-Alkanes in Marine Aerosols along a North–South Transect in the Arctic–Northwest Pacific Region |
title_fullStr |
Molecular Distributions and Compound-Specific Stable Carbon Isotopic Compositions of Plant Wax n-Alkanes in Marine Aerosols along a North–South Transect in the Arctic–Northwest Pacific Region |
title_full_unstemmed |
Molecular Distributions and Compound-Specific Stable Carbon Isotopic Compositions of Plant Wax n-Alkanes in Marine Aerosols along a North–South Transect in the Arctic–Northwest Pacific Region |
title_sort |
molecular distributions and compound-specific stable carbon isotopic compositions of plant wax n-alkanes in marine aerosols along a north–south transect in the arctic–northwest pacific region |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/atmos11050499 |
op_coverage |
agris |
geographic |
Arctic Arctic Ocean Pacific |
geographic_facet |
Arctic Arctic Ocean Pacific |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
Atmosphere; Volume 11; Issue 5; Pages: 499 |
op_relation |
Aerosols https://dx.doi.org/10.3390/atmos11050499 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos11050499 |
container_title |
Atmosphere |
container_volume |
11 |
container_issue |
5 |
container_start_page |
499 |
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1774714183032504320 |