DOI: 10.1016/j.atmosenv.2018.01.044
Scopus记录号: 2-s2.0-85042913737
论文题名: Identification of amines in wintertime ambient particulate material using high resolution aerosol mass spectrometry
作者: Bottenus C ; L ; H ; , Massoli P ; , Sueper D ; , Canagaratna M ; R ; , VanderSchelden G ; , Jobson B ; T ; , VanReken T ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 180 起始页码: 173
结束页码: 183
语种: 英语
英文关键词: Amines
; High-resolution aerosol mass spectrometer
; Organic aerosol
; Positive Matrix Factorization
Scopus关键词: Aerosols
; Amines
; Factorization
; Iodine
; Ions
; Mass spectrometers
; Mass spectrometry
; Negative ions
; Spectrometers
; Aerosol mass spectrometers
; Aerosol mass spectrometry
; Agricultural activities
; Biomass burning emissions
; Fine particulate matter
; Organic aerosol
; Positive Matrix Factorization
; Residential wood combustions
; Matrix algebra
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: Significant amounts of amines were detected in fine particulate matter (PM) during ambient wintertime conditions in Yakima, WA, using a high resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS). Positive matrix factorization (PMF) of the organic aerosol (OA) signal resulted in a six-factor solution that included two previously unreported amine OA factors. The contributions of the amine factors were strongly episodic, but the concentration of the combined amine factors was as high as 10–15 μg m−3 (2-min average) during those episodes. In one occasion, the Amine-II component was 45% of total OA signal. The Amine-I factor was dominated by spectral peaks at m/z 86 (C5H12N+) and m/z 100 (C6H14N+), while the Amine-II factor was dominated by spectral peaks at m/z 58 (C3H8N+ and C2H6N2 +) and m/z 72 (C4H10N+ and C3H8N2 +). The ions dominating each amine factor showed distinct time traces, suggesting different sources or formation processes. Investigation into the chemistry of the amine factors suggests a correlation with inorganic anions for Amine-I, but no evidence that the Amine-II was being neutralized by the same inorganic ions. We also excluded the presence of organonitrates (ON) in the OA. The presence of C2H4O2 + at m/z 60 (a levoglucosan fragment) in the Amine-I spectrum suggests some influence of biomass burning emissions (more specifically residential wood combustion) in this PMF factor, but wind direction suggested that the most likely sources of these amines were agricultural activities and feedlots to the S-SW of the site. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82937
Appears in Collections: 气候变化事实与影响
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作者单位: Gene and Linda Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, United States; Laboratory for Atmospheric Research, Department of Civil & Environmental Engineering, Washington State University, Pullman, WA, United States; Pacific Northwest National Laboratory, Richland, WA, United States; Aerodyne Research Inc., Billerica, MA, United States; Cooperative Institute for Environmental Sciences, University of Colorado at Boulder, Boulder, CO, United States; Now with National Science Foundation, Alexandria, VA, United States
Recommended Citation:
Bottenus C,L,H,et al. Identification of amines in wintertime ambient particulate material using high resolution aerosol mass spectrometry[J]. Atmospheric Environment,2018-01-01,180