| DOI | 10.1038/srep27481
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| Molecular distributions and compound-specific stable carbon isotopic compositions of lipids in wintertime aerosols from Beijing |
| Ren, Lujie; Fu, Pingqing; He, Yue; Hou, Juzhi ; Chen, Jing; Pavuluri, Chandra Mouli; Sun, Yele; Wang, Zifa
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| 通讯作者 | Fu, PQ (通讯作者)
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| 发表日期 | 2016
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| ISSN | 2045-2322
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| 卷号 | 6 |
| 英文摘要 | Molecular distributions and stable carbon isotopic compositions (delta C-13) of n-alkanes, fatty acids and n-alcohols were investigated in urban aerosols from Beijing, northern China to better understand the sources and long-range atmospheric transport of terrestrial organic matter during polluted and clear days in winter. n-Alkanes (C-19-C-36), fatty acids (C-8-C-32) and n-alcohols (C-16-C-32) detected in Beijing aerosols are characterized by the predominance of C-23, C-16 and C-28, respectively. Carbon preference index (CPI) values of n-alkanes, the ratios of the sum of odd-numbered n-alkanes to the sum of even-numbered n-alkanes, are close to 1, indicating a heavy influence of fossil fuel combustion. Relatively higher ratios of C(18:0+16:0)/C(18:n+16:1) (fatty acids) on clear days than polluted days indicate that long-distance transport and/or photochemical aging are more significant during clear days. delta C-13 values of n-alkanes and low molecular weight fatty acids (C-16:0, C-18:0) ranged from -34.1 to -24.7% and -26.9 to -24.6%, respectively, which are generally heavier on polluted days than those on clear days. Such a wide range suggests that atmospheric lipids in Beijing aerosols originate from multiple sources and encounter complicated atmospheric processes during long-range transport in North China. |
| 关键词 | FINE ORGANIC AEROSOLPOLYCYCLIC AROMATIC-HYDROCARBONSWESTERN NORTH PACIFICN-ALKANESFATTY-ACIDSMARINE AEROSOLSURBANMATTERTERRESTRIALCOMBUSTION |
| 语种 | 英语
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| WOS研究方向 | Science & Technology - Other Topics
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| WOS类目 | Multidisciplinary Sciences
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| WOS记录号 | WOS:000377463200002
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| 来源期刊 | SCIENTIFIC REPORTS
(IF:4.011[JCR-2018],4.525[5-Year]) |
| 来源机构 | 中国科学院青藏高原研究所
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| 文献类型 | 期刊论文
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| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/258810
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推荐引用方式
GB/T 7714 |
Ren, Lujie,Fu, Pingqing,He, Yue,et al. Molecular distributions and compound-specific stable carbon isotopic compositions of lipids in wintertime aerosols from Beijing[J]. 中国科学院青藏高原研究所,2016,6.
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| APA |
Ren, Lujie.,Fu, Pingqing.,He, Yue.,Hou, Juzhi.,Chen, Jing.,...&Wang, Zifa.(2016).Molecular distributions and compound-specific stable carbon isotopic compositions of lipids in wintertime aerosols from Beijing.SCIENTIFIC REPORTS,6.
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| MLA |
Ren, Lujie,et al."Molecular distributions and compound-specific stable carbon isotopic compositions of lipids in wintertime aerosols from Beijing".SCIENTIFIC REPORTS 6(2016).
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