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Compound-Specific Stable Carbon Isotope Ratios of Terrestrial Biomarkers in Urban Aerosols from Beijing, China
Ren, LJ (Ren, Lujie)1,2; Hu, W (Hu, Wei)2; Hou, JZ (Hou, Juzhi)3; Li, LJ (Li, Linjie)2,4; Yue, SY (Yue, Siyao)2,4; Sun, YL (Sun, Yele)2; Wang, ZF (Wang, Zifa)2; Li, XD (Li, Xiaodong)1; Pavuluri, CM (Pavuluri, Chandra Mouli)1; Hou, SJ (Hou, Shengjie)2; Liu, CQ (Liu, Cong-Qiang)1; Kawamura, K (Kawamura, Kimitaka)5; Ellam, RM (Ellam, Robert Mark)6; Fu, PQ (Fu, Pingqing)1,4
Source PublicationACS EARTH AND SPACE CHEMISTRY
2019
Volume3Issue:9Pages:1896-1904
DOI10.1021/acsearthspacechem.9b00113
Abstract

Molecular compositions and stable carbon isotope ratios (PC) of n-alkanes and fatty acids (FA) were investigated in urban aerosols from Beijing, China. Seasonal trends for n-alkanes showed a higher carbon preference index (CPI) and C-max at C-29 in spring indicating the enhanced emission of higher plant waxes. Lower CPIs and C-max at C-23 were found in winter that should be associated with fossil fuel combustion. C-13-depletion in C-29 n-alkane was observed during an extreme rainfall event, during which the inflow of air masses were originated from lower latitude regions. Higher concentrations of C-13-enriched C-23 n-alkane in winter together with the air mass trajectories suggested that the Beijing aerosols were affected by the air masses transported from the southern regions. Fatty acids were abundant in fall and showed a bimodal pattern with C(max )at C-16(:0) and C-18(:0). Higher C-24(:0)/FA ratios with C-13-enrichment occurred as influenced by southerly air masses, and lower C-24(:0)/FA ratios with C-13-depletion was observed with northerly air masses in fall and winter. These results suggested that C-24(:0) fatty acid was more abundantly transported from the southwestern air masses and may be a powerful tool to distinguish polluted aerosol source regions. Moreover, the delta C-13 values of C-24(:0) fatty acid showed a positive correlation with levoglucosan, implying that the biomass-burning process may contribute C-13-enriched C-2(4:0) fatty acid.

Subject AreaGeochemistry & Geophysics
WOS IDWOS:000487179500016
Language英语
Indexed BySCI
KeywordElevated Atmospheric Co2 Individual Fatty-acids Western North Pacific Fine Organic Aerosol N-alkanes Marine Aerosols Source Regions East China Matter Troposphere
WOS Research AreaChemistry ; Geochemistry & Geophysics
WOS SubjectChemistry, Multidisciplinary ; Geochemistry & Geophysics
Cooperation Status国际
ISSN2472-3452
Department大陆碰撞与高原隆升重点实验室
URL查看原文
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/9156
Collection图书馆
Corresponding AuthorFu, PQ (Fu, Pingqing)
Affiliation1.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China;
2.Chinese Acad Sci, Inst Atmospher Phys, LAPC, Beijing 100029, Peoples R China;
3.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China;
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China;
5.Chubu Univ, Chubu Inst Adv Studies, Kasugai, Aichi 4878501, Japan;
6.Scottish Univ Environm Res Ctr, E Kilbride G75 0QF, Lanark, Scotland.
Recommended Citation
GB/T 7714
Ren, LJ ,Hu, W ,Hou, JZ ,et al. Compound-Specific Stable Carbon Isotope Ratios of Terrestrial Biomarkers in Urban Aerosols from Beijing, China[J]. ACS EARTH AND SPACE CHEMISTRY,2019,3(9):1896-1904.
APA Ren, LJ .,Hu, W .,Hou, JZ .,Li, LJ .,Yue, SY .,...&Fu, PQ .(2019).Compound-Specific Stable Carbon Isotope Ratios of Terrestrial Biomarkers in Urban Aerosols from Beijing, China.ACS EARTH AND SPACE CHEMISTRY,3(9),1896-1904.
MLA Ren, LJ ,et al."Compound-Specific Stable Carbon Isotope Ratios of Terrestrial Biomarkers in Urban Aerosols from Beijing, China".ACS EARTH AND SPACE CHEMISTRY 3.9(2019):1896-1904.
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