DOI: 10.1016/j.atmosenv.2014.05.045
Scopus记录号: 2-s2.0-84901425696
论文题名: Seasonal variations of stable carbon isotopic composition of bulk aerosol carbon from Gosan site, Jeju Island in the East China Sea
作者: Kundu S ; , Kawamura K
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94 起始页码: 316
结束页码: 322
语种: 英语
英文关键词: Air pollution
; Gosan
; Isotopic enrichment
; Marine aerosol
; Organic aerosol
Scopus关键词: Aerosols
; Carbon
; Isotopes
; Loading
; Air mass trajectories
; Carbonaceous aerosol
; Gosan
; Isotope ratio mass spectrometer
; Isotopic enrichment
; Marine aerosols
; Organic aerosol
; Stable isotopic compositions
; Air pollution
; azelaic acid
; carbon
; carbon 13
; carbonic acid
; dicarboxylic acid
; fossil fuel
; organic carbon
; organic matter
; oxalic acid
; phthalic acid derivative
; stable isotope
; sulfuric acid
; aerosol
; air mass
; atmospheric pollution
; carbon isotope
; combustion
; concentration (composition)
; isotopic composition
; pollutant source
; seasonal variation
; stable isotope
; aerosol
; air pollution
; air sampling
; article
; atmospheric transport
; biomass
; chemical analysis
; China
; combustion
; fume
; priority journal
; seasonal variation
; secondary organic aerosol
; South Korea
; Cheju [South Korea]
; East China Sea
; Gosan
; Pacific Ocean
; South Korea
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: This study explores the usefulness of stable isotopic composition (δ13C) along with other chemical tracers and air mass trajectory to identify the primary and secondary sources of carbonaceous aerosols. Aerosol samples (n=84) were collected continuously from April 2003 to April 2004 at Gosan site in Jeju Island, South Korea. The concentrations of total carbon (TC), HCl fumed carbonate-free total carbon (fumed-TC) and their δ13C were measured online using elemental analyzer interfaced to isotope ratio mass spectrometer (EA-IRMS). Similar concentrations of TC and fumed-TC and their similar δ13C values suggest the insignificant contribution of inorganic carbon to Gosan aerosols. The monthly averaged δ13CTC showed the lowest in April/May (-24.2 to-24.4‰), which is related with the highest concentrations of oxalic acid (a secondary tracer). The result indicates an enhanced contribution of TC from secondary sources. The monthly averaged δ13CTC in July/August (-23.0 to-22.5‰) were similar to those in January/February (-23.1‰ to-22.7‰). However, chemical tracers and air mass transport pattern suggest that the pollution source regions in January/February are completely different from those in July/August. Higher δ13C values in July/August are aligned with higher concentration ratios of marine tracers (azelaic acid/TC and methanesulfonate/TC), suggesting an enhanced contribution of marine organic matter to the aerosol loading. Higher δ13C values in January/February are associated with higher concentrations of phthalic acid and K+/TC, indicating more contributions of carbonaceous aerosols from fossil fuel and C4-plant biomass combustion. This study demonstrates that δ13CTC, along with other chemical tracers and air mass trajectory, can be used as a tracer to understand the importance of primary versus secondary pollution sources of carbonaceous aerosols in the atmosphere. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80874
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Low Temperature Science, Hokkaido University, Sapporo 060-0819, Japan; Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan
Recommended Citation:
Kundu S,, Kawamura K. Seasonal variations of stable carbon isotopic composition of bulk aerosol carbon from Gosan site, Jeju Island in the East China Sea[J]. Atmospheric Environment,2014-01-01,94