Organic molecular composition of marine aerosols over the Arctic Ocean in summer: contributions of primary emission and secondary aerosol formation
International audience Organic molecular composition of marine aerosol samples collected during the MALINA cruise in the Arctic Ocean was investigated by gas chromatography/mass spec-trometry. More than 110 individual organic compounds were determined in the samples and were grouped into different c...
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ftinsu:oai:HAL:hal-02000694v1 2023-12-31T10:03:29+01:00 Organic molecular composition of marine aerosols over the Arctic Ocean in summer: contributions of primary emission and secondary aerosol formation Fu, P.Q Kawamura, Kimitaka Chen, Jie Charrìère, Bruno Sempere, Richard Hokkaido University Sapporo, Japan Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) 2013 https://hal.science/hal-02000694 https://hal.science/hal-02000694/document https://hal.science/hal-02000694/file/Fu-et-al-2013.pdf https://doi.org/10.5194/bg-10-653-2013 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-10-653-2013 hal-02000694 https://hal.science/hal-02000694 https://hal.science/hal-02000694/document https://hal.science/hal-02000694/file/Fu-et-al-2013.pdf doi:10.5194/bg-10-653-2013 info:eu-repo/semantics/OpenAccess ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-02000694 Biogeosciences, 2013, 10 (2), pp.653-667. ⟨10.5194/bg-10-653-2013⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2013 ftinsu https://doi.org/10.5194/bg-10-653-2013 2023-12-06T17:26:47Z International audience Organic molecular composition of marine aerosol samples collected during the MALINA cruise in the Arctic Ocean was investigated by gas chromatography/mass spec-trometry. More than 110 individual organic compounds were determined in the samples and were grouped into different compound classes based on the functionality and sources. The concentrations of total quantified organics ranged from 7.3 to 185 ng m −3 (mean 47.6 ng m −3), accounting for 1.8-11.0 % (4.8 %) of organic carbon in the marine aerosols. Primary saccharides were found to be dominant organic compound class, followed by secondary organic aerosol (SOA) tracers formed from the oxidation of biogenic volatile organic compounds (VOCs) such as isoprene, α-pinene and β-caryophyllene. Mannitol, the specific tracer for airborne fungal spores, was detected as the most abundant organic species in the samples with a concentration range of 0.052-53.3 ng m −3 (9.2 ng m −3), followed by glucose, arabitol, and the isoprene oxidation products of 2-methyltetrols. Biomass burning tracers such as levoglucosan are evident in all samples with trace levels. On the basis of the tracer-based method for the estimation of fungal-spore OC and biogenic secondary organic carbon (SOC), we estimate that an average of 10.7 % (up to 26.2 %) of the OC in the marine aerosols was due to the contribution of fungal spores, followed by the contribution of isoprene SOC (mean 3.8 %) and α-pinene SOC (2.9 %). In contrast, only 0.19 % of the OC was due to the photooxidation of β-caryophyllene. This study indicates that primary organic aerosols from biogenic emissions, both from long-range transport of mid-latitude aerosols and from sea-to-air emission of marine organics, as well as secondary organic aerosols formed from the photooxidation of biogenic VOCs are important factors controlling the organic chemical composition of marine aerosols in the Arctic Ocean. Article in Journal/Newspaper Arctic Arctic Ocean Institut national des sciences de l'Univers: HAL-INSU Biogeosciences 10 2 653 667 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Fu, P.Q Kawamura, Kimitaka Chen, Jie Charrìère, Bruno Sempere, Richard Organic molecular composition of marine aerosols over the Arctic Ocean in summer: contributions of primary emission and secondary aerosol formation |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Organic molecular composition of marine aerosol samples collected during the MALINA cruise in the Arctic Ocean was investigated by gas chromatography/mass spec-trometry. More than 110 individual organic compounds were determined in the samples and were grouped into different compound classes based on the functionality and sources. The concentrations of total quantified organics ranged from 7.3 to 185 ng m −3 (mean 47.6 ng m −3), accounting for 1.8-11.0 % (4.8 %) of organic carbon in the marine aerosols. Primary saccharides were found to be dominant organic compound class, followed by secondary organic aerosol (SOA) tracers formed from the oxidation of biogenic volatile organic compounds (VOCs) such as isoprene, α-pinene and β-caryophyllene. Mannitol, the specific tracer for airborne fungal spores, was detected as the most abundant organic species in the samples with a concentration range of 0.052-53.3 ng m −3 (9.2 ng m −3), followed by glucose, arabitol, and the isoprene oxidation products of 2-methyltetrols. Biomass burning tracers such as levoglucosan are evident in all samples with trace levels. On the basis of the tracer-based method for the estimation of fungal-spore OC and biogenic secondary organic carbon (SOC), we estimate that an average of 10.7 % (up to 26.2 %) of the OC in the marine aerosols was due to the contribution of fungal spores, followed by the contribution of isoprene SOC (mean 3.8 %) and α-pinene SOC (2.9 %). In contrast, only 0.19 % of the OC was due to the photooxidation of β-caryophyllene. This study indicates that primary organic aerosols from biogenic emissions, both from long-range transport of mid-latitude aerosols and from sea-to-air emission of marine organics, as well as secondary organic aerosols formed from the photooxidation of biogenic VOCs are important factors controlling the organic chemical composition of marine aerosols in the Arctic Ocean. |
author2 |
Hokkaido University Sapporo, Japan Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Fu, P.Q Kawamura, Kimitaka Chen, Jie Charrìère, Bruno Sempere, Richard |
author_facet |
Fu, P.Q Kawamura, Kimitaka Chen, Jie Charrìère, Bruno Sempere, Richard |
author_sort |
Fu, P.Q |
title |
Organic molecular composition of marine aerosols over the Arctic Ocean in summer: contributions of primary emission and secondary aerosol formation |
title_short |
Organic molecular composition of marine aerosols over the Arctic Ocean in summer: contributions of primary emission and secondary aerosol formation |
title_full |
Organic molecular composition of marine aerosols over the Arctic Ocean in summer: contributions of primary emission and secondary aerosol formation |
title_fullStr |
Organic molecular composition of marine aerosols over the Arctic Ocean in summer: contributions of primary emission and secondary aerosol formation |
title_full_unstemmed |
Organic molecular composition of marine aerosols over the Arctic Ocean in summer: contributions of primary emission and secondary aerosol formation |
title_sort |
organic molecular composition of marine aerosols over the arctic ocean in summer: contributions of primary emission and secondary aerosol formation |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://hal.science/hal-02000694 https://hal.science/hal-02000694/document https://hal.science/hal-02000694/file/Fu-et-al-2013.pdf https://doi.org/10.5194/bg-10-653-2013 |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-02000694 Biogeosciences, 2013, 10 (2), pp.653-667. ⟨10.5194/bg-10-653-2013⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-10-653-2013 hal-02000694 https://hal.science/hal-02000694 https://hal.science/hal-02000694/document https://hal.science/hal-02000694/file/Fu-et-al-2013.pdf doi:10.5194/bg-10-653-2013 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/bg-10-653-2013 |
container_title |
Biogeosciences |
container_volume |
10 |
container_issue |
2 |
container_start_page |
653 |
op_container_end_page |
667 |
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1786822247874297856 |