气候变化领域集成服务门户(CCPortal): Formation of condensable organic vapors from anthropogenic and biogenic volatile organic compounds (VOCs) is strongly perturbed by NOx in eastern China

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DOI	10.5194/acp-21-14789-2021
	Formation of condensable organic vapors from anthropogenic and biogenic volatile organic compounds (VOCs) is strongly perturbed by NOx in eastern China
	Liu Y.; Nie W.; Li Y.; Ge D.; Liu C.; Xu Z.; Chen L.; Wang T.; Wang L.; Sun P.; Qi X.; Wang J.; Xu Z.; Yuan J.; Yan C.; Zhang Y.; Huang D.; Wang Z.; Donahue N.M.; Worsnop D.; Chi X.; Ehn M.; DIng A.
发表日期	2021
ISSN	1680-7316
起始页码	14789
结束页码	14814
卷号	21 期号:19
英文摘要	Oxygenated organic molecules (OOMs) are the crucial intermediates linking volatile organic compounds (VOCs) to secondary organic aerosols (SOAs) in the atmosphere, but comprehensive understanding of the characteristics of OOMs and their formation from VOCs is still missing. Ambient observations of OOMs using recently developed mass spectrometry techniques are still limited, especially in polluted urban atmospheres where VOCs and oxidants are extremely variable and complex. Here, we investigate OOMs, measured by a nitrate-ion-based chemical ionization mass spectrometer at Nanjing in eastern China, through performing positive matrix factorization on binned mass spectra (binPMF). The binPMF analysis reveals three factors about anthropogenic VOC (AVOC) daytime chemistry, three isoprene-related factors, three factors about biogenic VOC (BVOC) nighttime chemistry, and three factors about nitrated phenols. All factors are influenced by NOx in different ways and to different extents. Over 1000 non-nitro molecules have been identified and then reconstructed from the selected solution of binPMF, and about 72% of the total signals are contributed by nitrogen-containing OOMs, mostly regarded as organic nitrates formed through peroxy radicals terminated by nitric oxide or nitrate-radical-initiated oxidations. Moreover, multi-nitrates account for about 24% of the total signals, indicating the significant presence of multiple generations, especially for isoprene (e.g., C5H10O8N2 and C5H9O10N3). Additionally, the distribution of OOM concentration on the carbon number confirms their precursors are driven by AVOCs mixed with enhanced BVOCs during summer. Our results highlight the decisive role of NOx in OOM formation in densely populated areas, and we encourage more studies on the dramatic interactions between anthropogenic and biogenic emissions. © Copyright:
语种	英语
scopus关键词	anthropogenic source; biogenic emission; formation mechanism; mass spectrometry; nitrogen oxides; volatile organic compound; water vapor; China; Jiangsu; Nanjing [Jiangsu]
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/246530
作者单位	Joint International Research Laboratory of Atmospheric and Earth System Sciences, School of Atmospheric Sciences, Nanjing University, Nanjing, China; Jiangsu Provincial Collaborative Innovation Center of Climate Change, Nanjing, China; Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, Helsinki, Finland; State Environ. Protection Key Laboratory of Formation and Prevention of Urban Air Pollution Complex, Shanghai Academy of Environmental Sciences, Shanghai, China; College of Environmental and Resource Sciences, Zhejiang University, Zhejiang, China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, Hong Kong; Center for Atmospheric Particle Studies, Carnegie Mellon University, Pittsburgh, PA, United States; Center for Aerosol and Cloud Chemistry, Aerodyne Research Inc., Billerica, MA, United States; Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON, Villeurbanne, France; Meteorological Service ...
推荐引用方式 GB/T 7714	Liu Y.,Nie W.,Li Y.,et al. Formation of condensable organic vapors from anthropogenic and biogenic volatile organic compounds (VOCs) is strongly perturbed by NOx in eastern China[J],2021,21(19).
APA	Liu Y..,Nie W..,Li Y..,Ge D..,Liu C..,...&DIng A..(2021).Formation of condensable organic vapors from anthropogenic and biogenic volatile organic compounds (VOCs) is strongly perturbed by NOx in eastern China.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(19).
MLA	Liu Y.,et al."Formation of condensable organic vapors from anthropogenic and biogenic volatile organic compounds (VOCs) is strongly perturbed by NOx in eastern China".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.19(2021).