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DOI	10.1016/j.atmosenv.2021.118426
	Effect of NOx on secondary organic aerosol formation from the photochemical transformation of allyl acetate
	Wang S.; Tsona N.T.; Du L.
发表日期	2021
ISSN	1352-2310
卷号	255
英文摘要	Smog chamber experiments were conducted to explore the photochemical degradation of allyl acetate (AA) in the presence of SO2 and to assess the role of NOx on the secondary organic aerosol (SOA) formation potential. A one-product gas-particle partitioning absorption model was used to express the formed organic aerosol. The experimental results showed a clear dependence of SOA formation potential on the NOx level. The particle mass concentrations at low NOx conditions (AA/NOx > 3) were commonly higher than those at high NOx conditions (AA/NOx < 3). The SOA yields increased with the increasing NOx concentration under low NOx conditions and decreased with the increasing NOx concentration under high NOx conditions due to the different reaction pathways of RO2 radicals. Gas chromatography-mass spectrometry (GC-MS) and Fourier transform infrared spectroscopy-attenuated total reflection (FTIR-ATR) analysis suggested that organic nitrates and organic sulfates were formed during photochemistry experiments. Based on detected products, the mechanisms of AA photooxidation were proposed. The results of this study show the different effects of NOx concentrations on promoting and inhibiting aerosol formation, and highlight the pronounced formation of SOA from the photooxidation of AA in polluted environment. © 2021 Elsevier Ltd
关键词	Allyl acetate NOx levels Reaction mechanism SOA formation
语种	英语
scopus关键词	Aerosols; Fourier transform infrared spectroscopy; Gas chromatography; Mass spectrometry; Photooxidation; Sulfur compounds; Allyl acetate; Condition; Formation potential; Low NOx; NOx level; Organic aerosol; Organic aerosol formation; Photochemical transformations; Reaction mechanism; Secondary organic aerosol formation; Nitrogen oxides; acetic acid; allyl compound; nitric oxide; organic nitrate; peroxy radical; sulfate; sulfur dioxide; acetate; aerosol formation; experimental study; nitrogen oxides; photochemistry; photooxidation; pollution effect; transformation; absorption; Article; attenuated total reflectance Fourier transform infrared spectroscopy; concentration (parameter); gas; mass fragmentography; oxidation; photochemistry; photooxidation; priority journal; reaction analysis; secondary organic aerosol
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248423
作者单位	School of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan, 250101, China; Environment Research Institute, Shandong University, Qingdao, 266237, China
推荐引用方式 GB/T 7714	Wang S.,Tsona N.T.,Du L.. Effect of NOx on secondary organic aerosol formation from the photochemical transformation of allyl acetate[J],2021,255.
APA	Wang S.,Tsona N.T.,&Du L..(2021).Effect of NOx on secondary organic aerosol formation from the photochemical transformation of allyl acetate.ATMOSPHERIC ENVIRONMENT,255.
MLA	Wang S.,et al."Effect of NOx on secondary organic aerosol formation from the photochemical transformation of allyl acetate".ATMOSPHERIC ENVIRONMENT 255(2021).