气候变化领域集成服务门户(CCPortal): SO2 enhances aerosol formation from anthropogenic volatile organic compound ozonolysis by producing sulfur-containing compounds

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DOI	10.5194/acp-23-417-2023
	SO2 enhances aerosol formation from anthropogenic volatile organic compound ozonolysis by producing sulfur-containing compounds
	Yang, Zhaomin; Li, Kun; Tsona, Narcisse T.; Luo, Xin; Du, Lin
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	417
结束页码	430
卷号	23 期号:1 页码:14
英文摘要	Sulfur dioxide (SO2) can affect aerosol formation in the atmosphere, but the underlying mechanisms remain unclear. Here, we investigate aerosol formation and composition from the ozonolysis of cyclooctene with and without SO2 addition in a smog chamber. Liquid chromatography equipped with high-resolution tandem mass spectrometry measurements indicates that monomer carboxylic acids and corresponding dimers with acid anhydride and aldol structures are important components in particles formed in the absence of SO2. A 9.4-12.6-times increase in particle maximum number concentration is observed in the presence of 14-192 ppb SO2. This increase is largely attributed to sulfuric acid (H2SO4) formation from the reactions of stabilized Criegee intermediates with SO2. In addition, a number of organosulfates (OSs) are detected in the presence of SO2, which are likely products formed from the heterogeneous reactions of oxygenated species with H2SO4. The molecular structures of OSs are also identified based on tandem mass spectrometry analysis. It should be noted that some of these OSs have been found in previous field studies but were classified as compounds from unknown sources or of unknown structures. The observed OSs are less volatile than their precursors and are therefore more effective contributors to particle formation and growth, partially leading to the increase in particle volume concentration under SO2-presence conditions. Our results provide an in-depth molecular-level insight into how SO2 alters particle formation and composition.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000912065000001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273481
作者单位	Shandong University
推荐引用方式 GB/T 7714	Yang, Zhaomin,Li, Kun,Tsona, Narcisse T.,et al. SO2 enhances aerosol formation from anthropogenic volatile organic compound ozonolysis by producing sulfur-containing compounds[J],2023,23(1):14.
APA	Yang, Zhaomin,Li, Kun,Tsona, Narcisse T.,Luo, Xin,&Du, Lin.(2023).SO2 enhances aerosol formation from anthropogenic volatile organic compound ozonolysis by producing sulfur-containing compounds.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(1),14.
MLA	Yang, Zhaomin,et al."SO2 enhances aerosol formation from anthropogenic volatile organic compound ozonolysis by producing sulfur-containing compounds".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.1(2023):14.