Identification of secondary fatty alcohols in atmospheric aerosols in temperate forests
<p>Fatty alcohols (FAs) are major components of surface lipids (waxes) and can act as surface-active organic aerosols in the atmosphere, influencing chemical reactions, particle lifetimes, and the formation of cloud droplets and ice nuclei. However, studies on the composition and source of the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2019-05-01
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| Series: | Biogeosciences |
| Online Access: | https://www.biogeosciences.net/16/2181/2019/bg-16-2181-2019.pdf |
| _version_ | 1828842691140517888 |
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| author | Y. Miyazaki D. Gowda D. Gowda E. Tachibana Y. Takahashi T. Hiura |
| author_facet | Y. Miyazaki D. Gowda D. Gowda E. Tachibana Y. Takahashi T. Hiura |
| author_sort | Y. Miyazaki |
| collection | DOAJ |
| description | <p>Fatty alcohols (FAs) are major components of surface
lipids (waxes) and can act as surface-active organic aerosols in the
atmosphere, influencing chemical reactions, particle lifetimes, and the
formation of cloud droplets and ice nuclei. However, studies on the
composition and source of the FAs in atmospheric aerosols are very limited.
In this study, we identified five secondary FAs (SFAs) with <span class="inline-formula">C<sub>27</sub></span> and
<span class="inline-formula">C<sub>29</sub></span> from aerosol samples collected throughout 1 year at two different deciduous forest sites in Japan. Fatty diols, such as
<span class="inline-formula"><i>n</i></span>-heptacosan-5,10-diol, were identified in atmospheric aerosols for the first
time. Among the identified SFAs, <span class="inline-formula"><i>n</i></span>-nonacosan-10-ol was the most abundant
compound, followed by <span class="inline-formula"><i>n</i></span>-nonacosan-5-10-diol at both of the forest sites.
Concentrations of the SFAs exhibited distinct seasonal variation, with
pronounced peaks during the growing season at each forest site. The SFAs
showed significant correlation with sucrose, which is used as a molecular
tracer of pollen. A significant fraction of the SFAs was attributed to the
submicrometer particles in the growing season. The results indicate that
they originated mostly from plant waxes and could be used as useful tracers
for primary biological aerosol particles.</p> |
| first_indexed | 2024-12-12T20:29:41Z |
| format | Article |
| id | doaj.art-38abc90dfcb8479e9e11ca8a338c2aa9 |
| institution | Directory Open Access Journal |
| issn | 1726-4170 1726-4189 |
| language | English |
| last_indexed | 2024-12-12T20:29:41Z |
| publishDate | 2019-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Biogeosciences |
| spelling | doaj.art-38abc90dfcb8479e9e11ca8a338c2aa92022-12-22T00:13:03ZengCopernicus PublicationsBiogeosciences1726-41701726-41892019-05-01162181218810.5194/bg-16-2181-2019Identification of secondary fatty alcohols in atmospheric aerosols in temperate forestsY. Miyazaki0D. Gowda1D. Gowda2E. Tachibana3Y. Takahashi4T. Hiura5Institute of Low Temperature Science, Hokkaido University, Sapporo, 060-0819, JapanInstitute of Low Temperature Science, Hokkaido University, Sapporo, 060-0819, Japannow at: RIKEN Center for Integrative Medical Science, Yokohama, 230-0045, JapanInstitute of Low Temperature Science, Hokkaido University, Sapporo, 060-0819, JapanNational Institute for Environmental Studies, Tsukuba, 305-8506, JapanField Science Center for Northern Biosphere, Hokkaido University, Tomakomai, 053-0035, Japan<p>Fatty alcohols (FAs) are major components of surface lipids (waxes) and can act as surface-active organic aerosols in the atmosphere, influencing chemical reactions, particle lifetimes, and the formation of cloud droplets and ice nuclei. However, studies on the composition and source of the FAs in atmospheric aerosols are very limited. In this study, we identified five secondary FAs (SFAs) with <span class="inline-formula">C<sub>27</sub></span> and <span class="inline-formula">C<sub>29</sub></span> from aerosol samples collected throughout 1 year at two different deciduous forest sites in Japan. Fatty diols, such as <span class="inline-formula"><i>n</i></span>-heptacosan-5,10-diol, were identified in atmospheric aerosols for the first time. Among the identified SFAs, <span class="inline-formula"><i>n</i></span>-nonacosan-10-ol was the most abundant compound, followed by <span class="inline-formula"><i>n</i></span>-nonacosan-5-10-diol at both of the forest sites. Concentrations of the SFAs exhibited distinct seasonal variation, with pronounced peaks during the growing season at each forest site. The SFAs showed significant correlation with sucrose, which is used as a molecular tracer of pollen. A significant fraction of the SFAs was attributed to the submicrometer particles in the growing season. The results indicate that they originated mostly from plant waxes and could be used as useful tracers for primary biological aerosol particles.</p>https://www.biogeosciences.net/16/2181/2019/bg-16-2181-2019.pdf |
| spellingShingle | Y. Miyazaki D. Gowda D. Gowda E. Tachibana Y. Takahashi T. Hiura Identification of secondary fatty alcohols in atmospheric aerosols in temperate forests Biogeosciences |
| title | Identification of secondary fatty alcohols in atmospheric aerosols in temperate forests |
| title_full | Identification of secondary fatty alcohols in atmospheric aerosols in temperate forests |
| title_fullStr | Identification of secondary fatty alcohols in atmospheric aerosols in temperate forests |
| title_full_unstemmed | Identification of secondary fatty alcohols in atmospheric aerosols in temperate forests |
| title_short | Identification of secondary fatty alcohols in atmospheric aerosols in temperate forests |
| title_sort | identification of secondary fatty alcohols in atmospheric aerosols in temperate forests |
| url | https://www.biogeosciences.net/16/2181/2019/bg-16-2181-2019.pdf |
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