Primary and Secondary Organic Nitrate in Northwest China: A Case Study

doi:10.1021/acs.estlett.1c00692

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	Primary and Secondary Organic Nitrate in Northwest China: A Case Study
	Lin, Chunshui 1; Huang, Ru-Jin 1,2; Duan, Jing 1; Zhong, Haobin 1; Xu, Wei 1
通讯作者	Huang, Ru-Jin(rujin.huang@ieecas.cn)
	2021-11-09
发表期刊	ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
ISSN	2328-8930
卷号	8 期号:11 页码:947-953
摘要	Particle-bound organic nitrate is ubiquitous in the atmosphere, but its primary emission and secondary formation processes are poorly understood and are, therefore, generally ignored in models. In this study, based on the ambient measurements and a series of combustion experiments, we found that the nitrate functionality from organic nitrate (primary + secondary) accounted for 20%-53% of the total NO3 signal measured with a long-time-of-flight (LToF) soot particle aerosol mass spectrometer (SP-AMS) in northwestern China in mid-November 2020. In particular, secondary organic nitrate accounted for 17% and 36% of the measured NO3 during the haze and reference periods, respectively. It was further estimated that secondary organic nitrate, on average, accounted for 46% of the total organic matter (or 18% of PM2.5) during the haze period, representing a significant portion of the secondary organic aerosol, while primary organic nitrate, mostly from biomass burning, was estimated to account for 8%-9% of the total organic matter (3%-5% of PM2.5). Moreover, we showed that photochemical (OH-initiated + elevated NO2) formation of organic nitrate was probably a more important pathway than the nighttime chemistry (NO3 initiated), which is in great contrast to that in European areas where nighttime chemistry was found to be the dominant pathway.
DOI	10.1021/acs.estlett.1c00692
关键词[WOS]	AEROSOL MASS-SPECTROMETER ; POLYCYCLIC AROMATIC-HYDROCARBONS ; SOURCE APPORTIONMENT ; SUBMICRON PARTICLES ; EMISSIONS ; ISOPRENE ; INSIGHTS ; PAHS ; SOFI
收录类别	SCI ; SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFC0212701] ; National Natural Science Foundation of China (NSFC)[41925015] ; National Natural Science Foundation of China (NSFC)[4210072504] ; National Natural Science Foundation of China (NSFC)[41877408] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; Chinese Academy of Sciences[ZDBS-LY-DQC001] ; Institute of Earth Environment[E051QB2837] ; Cross Innovative Team Fund from the State Key Laboratory of Loess and Quaternary Geology[SKLLQGTD1801]
WOS研究方向	Engineering ; Environmental Sciences & Ecology
项目资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; Strategic Priority Research Program of Chinese Academy of Sciences ; Chinese Academy of Sciences ; Institute of Earth Environment ; Cross Innovative Team Fund from the State Key Laboratory of Loess and Quaternary Geology
WOS类目	Engineering, Environmental ; Environmental Sciences
WOS记录号	WOS:000718186900004
出版者	AMER CHEMICAL SOC
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17221
专题	粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Huang, Ru-Jin
作者单位	1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys,State Key Lab Loess &, Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 2.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Lin, Chunshui,Huang, Ru-Jin,Duan, Jing,et al. Primary and Secondary Organic Nitrate in Northwest China: A Case Study[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,2021,8(11):947-953.
APA	Lin, Chunshui,Huang, Ru-Jin,Duan, Jing,Zhong, Haobin,&Xu, Wei.(2021).Primary and Secondary Organic Nitrate in Northwest China: A Case Study.ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS,8(11),947-953.
MLA	Lin, Chunshui,et al."Primary and Secondary Organic Nitrate in Northwest China: A Case Study".ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS 8.11(2021):947-953.