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DOI | 10.1088/1748-9326/ab8333 |
Source forensics ofn-alkanes andn-fatty acids in urban aerosols using compound specific radiocarbon/stable carbon isotopic composition | |
Ren, Lujie1,8,9; Wang, Yiyun2,3; Kawamura, Kimitaka4; Bikkina, Srinivas4; Haghipour, Negar2,5; Wacker, Lukas5; Pavuluri, Chandra Mouli1; Zhang, Zhimin1; Yue, Siyao6,7; Sun, Yele6; Wang, Zifa6; Zhang, Yanli8,9; Feng, Xiaojuan3; Liu, Cong-Qiang1; Eglinton, Timothy, I2; Fu, Pingqing1 | |
2020-07-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2020 |
卷号 | 15期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Switzerland; Japan |
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. |
英文关键词 | atmospheric aerosols n-alkanes n-fatty acids compound-specific stable carbon isotopes radiocarbon isotopes |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000545003500001 |
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类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/289369 |
专题 | 气候变化 |
作者单位 | 1.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China; 2.Swiss Fed Inst Technol, Geol Inst, Dept Earth Sci, CH-8092 Zurich, Switzerland; 3.Chinese Acad Sci, Inst Bot, Beijing 100093, Peoples R China; 4.Chubu Univ, Chubu Inst Adv Studies, Kasugai, Aichi 4878501, Japan; 5.Swiss Fed Inst Technol, Dept Phys, Lab Ion Beam Phys, CH-8093 Zurich, Switzerland; 6.Chinese Acad Sci, Inst Atmospher Phys, LAPC, Beijing 100029, Peoples R China; 7.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China; 8.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China; 9.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou 510640, 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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