Source forensics ofn-alkanes andn-fatty acids in urban aerosols using compound specific radiocarbon/stable carbon isotopic composition
文献类型：期刊论文
| 作者 | Ren, Lujie2,8; Wang, Yiyun1,6; Kawamura, Kimitaka5; Bikkina, Srinivas5; Haghipour, Negar1,4; Wacker, Lukas4; Pavuluri, Chandra Mouli; Zhang, Zhimin; Yue, Siyao3,9; Sun, Yele3 |
| 刊名 | ENVIRONMENTAL RESEARCH LETTERS
 |
| 出版日期 | 2020 |
| 卷号 | 15期号:7 |
| ISSN号 | 1748-9326 |
| 关键词 | atmospheric aerosols n-alkanes n-fatty acids compound-specific stable carbon isotopes radiocarbon isotopes |
| DOI | 10.1088/1748-9326/ab8333 |
| 文献子类 | Article |
| 英文摘要 | n-Alkanes and fatty acids are important molecular markers for the source apportionment of organic matter in the atmosphere. Traditional approaches to date have mostly relied upon the source-specific differences in their molecular distributions and carbon preference index. Alternatively, we demonstrate here the use of stable carbon and radiocarbon isotopic composition (delta C-13 and Delta C-14, respectively) ofn-alkanes andn-fatty acids in aerosols from two urban receptor sites (Beijing and Tianjin) in Northeast China to assess their sources in autumn. The Delta(14)C(n)(-alkanes)of C-19-C(24)and C-26-C(32)even-carbon homologs (-851 to -708 parts per thousand) indicate their dominance from fossil fuel combustion. In contrast, the Delta C-14 of most abundant palmitic acid (C-16:0) and stearic acid (C-18:0) suggest a larger contribution from nonfossil sources (similar to 91%-94%), mainly due to inputs from cooking, biomass burning and microorganisms. Compared with lower Delta C-14 of C(27)and C(31)n-alkanes (-449 parts per thousand), C(29)n-alkane (-241 parts per thousand) and C-20-C(30)n-fatty acids (-263 parts per thousand) showed more contemporary likely due to significant contribution from plant litter and biomass burning that contain more fresh biogenic material. Fossil character of C-27-C(31)n-alkanes (40%) and C-20-C(30)n-fatty acids (30%) could be from soil resuspension and/or loess deposits in upwind regions through long-range atmospheric transport. |
| 学科主题 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
| 出版地 | BRISTOL |
| WOS关键词 | POLYCYCLIC AROMATIC-HYDROCARBONS ; FINE ORGANIC AEROSOL ; WESTERN NORTH PACIFIC ; N-ALKANES ; STABLE CARBON ; MOLECULAR TRACERS ; EMISSION FACTORS ; SOURCE APPORTIONMENT ; MARINE AEROSOLS ; AIR-POLLUTION |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000545003500001 |
| 资助机构 | National Key R&D Program of China [2017YFC0212700] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41807303, 41625014] ; State Key Laboratory of Organic Geochemistry, GIGCAS [SKLOG-201747] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21699]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Swiss Fed Inst Technol, Dept Phys, Lab Ion Beam Phys, CH-8093 Zurich, Switzerland 4.Chubu Univ, Chubu Inst Adv Studies, Kasugai, Aichi 4878501, Japan 5.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China 6.Swiss Fed Inst Technol, Geol Inst, Dept Earth Sci, CH-8092 Zurich, Switzerland 7.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, Peoples R China 8.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 9.Chinese Acad Sci, Inst Atmospher Phys, LAPC, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ren, Lujie,Wang, Yiyun,Kawamura, Kimitaka,et al. Source forensics ofn-alkanes andn-fatty acids in urban aerosols using compound specific radiocarbon/stable carbon isotopic composition[J]. ENVIRONMENTAL RESEARCH LETTERS,2020,15(7). |
| APA | Ren, Lujie.,Wang, Yiyun.,Kawamura, Kimitaka.,Bikkina, Srinivas.,Haghipour, Negar.,...&Fu, Pingqing.(2020).Source forensics ofn-alkanes andn-fatty acids in urban aerosols using compound specific radiocarbon/stable carbon isotopic composition.ENVIRONMENTAL RESEARCH LETTERS,15(7). |
| MLA | Ren, Lujie,et al."Source forensics ofn-alkanes andn-fatty acids in urban aerosols using compound specific radiocarbon/stable carbon isotopic composition".ENVIRONMENTAL RESEARCH LETTERS 15.7(2020). |
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来源：植物研究所
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