DOI: 10.1016/j.atmosenv.2015.04.001
Scopus记录号: 2-s2.0-84927712794
论文题名: Indoor transient SOA formation from ozone+α-pinene reactions: Impacts of air exchange and initial product concentrations, and comparison to limonene ozonolysis
作者: Youssefi S ; , Waring M ; S
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 112 起始页码: 106
结束页码: 115
语种: 英语
英文关键词: Indoor chemistry
; Particles
; Secondary organic aerosol
; Terpenes
; Ventilation
; Yields
Scopus关键词: Aerosols
; Air
; Consumer products
; Elementary particles
; Olefins
; Ozone
; Terpenes
; Ventilation
; Air exchange rates
; Indoor chemistry
; Ozone reactions
; Product concentration
; Reactant concentrations
; Secondary organic aerosols
; Ventilated buildings
; Yields
; Monoterpenes
; limonene
; ozone
; pinene
; terpene
; aerosol property
; atmospheric chemistry
; concentration (composition)
; indoor air
; ozone
; reaction kinetics
; aerosol mass fraction
; air exchange rate
; ambient air
; Article
; chemical reaction
; mass
; ozonolysis
; parameters
; priority journal
; secondary organic aerosol
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: The ozonolysis of reactive organic gases (ROG), e.g. terpenes, generates secondary organic aerosol (SOA) indoors. The SOA formation strength of such reactions is parameterized by the aerosol mass fraction (AMF), a.k.a. SOA yield, which is the mass ratio of generated SOA to oxidized ROG. AMFs vary in magnitude both among and for individual ROGs. Here, we quantified dynamic SOA formation from the ozonolysis of α-pinene with 'transient AMFs,' which describe SOA formation due to pulse emission of a ROG in an indoor space with air exchange, as is common when consumer products are intermittently used in ventilated buildings. We performed 19 experiments at low, moderate, and high (0.30, 0.52, and 0.94h-1, respectively) air exchange rates (AER) at varying concentrations of initial reactants. Transient AMFs as a function of peak SOA concentrations ranged from 0.071 to 0.25, and they tended to increase as the AER and product of the initial reactant concentrations increased. Compared to our similar research on limonene ozonolysis (Youssefi and Waring, 2014), for which formation strength was driven by secondary ozone reactions, the AER impact for α-pinene was opposite in direction and weaker, while the initial reactant product impact was in the same direction but stronger for α-pinene than for limonene. Linear fits of AMFs for α-pinene ozonolysis as a function of the AER and initial reactant concentrations are provided so that future indoor models can predict SOA formation strength. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81715
Appears in Collections: 气候变化事实与影响
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作者单位: Drexel University, Department of Civil, Architectural and Environmental Engineering, 3141 Chestnut St., Philadelphia, PA, United States
Recommended Citation:
Youssefi S,, Waring M,S. Indoor transient SOA formation from ozone+α-pinene reactions: Impacts of air exchange and initial product concentrations, and comparison to limonene ozonolysis[J]. Atmospheric Environment,2015-01-01,112