DOI: 10.1016/j.atmosenv.2019.117102
论文题名: Seasonal variation of amine-containing particles in urban Guangzhou, China
作者: Lian X. ; Zhang G. ; Lin Q. ; Liu F. ; Peng L. ; Yang Y. ; Fu Y. ; Jiang F. ; Bi X. ; Chen D. ; Wang X. ; Peng P. ; Sheng G.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 222 语种: 英语
英文关键词: Amines
; Atmospheric chemistry
; Mixing
; Oxidation
; Physicochemical properties
; Sulfur compounds
; Aerosol mass spectrometers
; Aqueous oxidation
; Atmospheric environment
; Atmospheric process
; Formation and evolutions
; High molecular weight
; Mixing state
; Seasonal variation
; Ethanolamines
; amine
; diethylamine
; dipropylamine
; nitrate
; nitrogen oxide
; organic compound
; sulfate
; sulfur dioxide
; trimethylamine
; tripropylamine
; aerosol
; atmospheric chemistry
; data envelopment analysis
; elemental carbon
; mixing
; organic compound
; oxidation
; physicochemical property
; seasonal variation
; urban pollution
; autumn
; China
; dust
; humidity
; molecular weight
; oxidation
; particle size
; physical chemistry
; priority journal
; seasonal variation
; spring
; summer
; wind speed
; winter
; China
; Guangdong
; Guangzhou
学科: Amine
; DEA
; Mixing state
; Seasonal variation
; TMA
中文摘要: Amines are ubiquitous in the environment and pose potential impacts on atmospheric chemistry; however, their seasonal variations and atmospheric processes remain unclear. In this study, a single-particle aerosol mass spectrometer is employed to investigate the seasonal variations of amine-containing particles as well as the oxidation of trimethylamine (TMA) in the urban region of Guangzhou, China. Number fractions of the amine-containing particles exhibit distinct seasonal variations, with higher fractions in spring and summer. Four amines, namely, TMA, diethylamine (DEA), dipropylamine, and tripropylamine are observed over all the seasons. DEA and TMA are the most dominant and account for approximately 90% of all these amine-containing particles. They are mainly clustered into eight types, comprised of internally mixed organics and elemental carbon (OCEC), OC–K, EC, Metal–rich, Dust, NaK–EC, Amine–rich, and high molecular weight organic compounds. DEA and TMA distribute differently over particle types and exhibit a distinct mixing state because of their different physicochemical properties. Compared with TMA, DEA is associated with more sulfate. The possible oxidation of TMA is also investigated, and the results indicate the potential contribution of aqueous oxidation or NO3 radical oxidation to the formation of TMA oxide. Overall, the results improve the comprehension of the formation and evolution processes of amines in atmospheric environment. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161080
Appears in Collections: 气候变化与战略
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作者单位: State Key Laboratory of Organic Geochemistry and Guangdong Provincial Key Laboratory of Environmental Protection and Resources Utilization, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Taiyuan University of Technology, Taiyuan, 030024, China; Guangdong Environmental Monitoring Center, Guangzhou, 510308, China
Recommended Citation:
Lian X.,Zhang G.,Lin Q.,et al. Seasonal variation of amine-containing particles in urban Guangzhou, China[J]. Atmospheric Environment,2020-01-01,222