Factors Influencing the Molecular Compositions and Distributions of Atmospheric Nitrogen-Containing Compounds

doi:10.1029/2021JD036284

	Factors Influencing the Molecular Compositions and Distributions of Atmospheric Nitrogen-Containing Compounds
	Jiang, Hongxing 1,2,3,4; Li, Jun 1,3; Tang, Jiao 1,3; Zhao, Shizhen 1,3; Chen, Yinjun 2; Tian, Chongguo5 ; Zhang, Xiangyun 1,3; Jiang, Bin 1,3; Liao, Yuhong 1,3; Zhang, Gan 1,3
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN	2169-897X
	2022-04-16
卷号	127 期号:7 页码:15
关键词	nitrogen-containing organic compounds FT-ICR-MS molecular distribution driven factors biomass burning meteorological parameters
DOI	10.1029/2021JD036284
通讯作者	Li, Jun([email protected])
英文摘要	Atmospheric nitrogen-containing organic compounds (NOCs) are critical components of global nitrogen deposition and light-absorption species. The sources and compositions of NOCs are complex and remain largely unknown. Here, NOCs in 55 ambient aerosol samples collected in Guangzhou, South China, were analyzed via ultrahigh-resolution Fourier transform ion cyclotron resonance mass spectrometry in negative-ion and positive-ion electrospray ionization (ESI) modes. The molecular compositions of NOCs measured via ESI- and ESI+ exhibited considerable differences. NOCs detected in the negative mode were mainly composed of highly oxygenated organic nitrates (O/N = 6), whereas NOCs detected in the positive mode were mainly composed of reduced nitrogen-containing compounds (e.g., amides and amino acids). CHN compounds potentially corresponding to amines and alkaloids showed low abundance in the detection modes. Non-metric multidimensional scaling and individual compound correlation analyses showed that the molecular compositions of NOCs were mainly affected by anthropogenic activities and meteorological parameters. For example, anthropogenic activities such as biomass burning and secondary nitrogen-chemistry processes led to the accumulation of aromatic and highly oxygenated NOCs during winter. During summer, higher OH radical concentrations and temperatures will result in more prevalent or persistent reduced aliphatic NOCs, particularly lipid-like amines. Some variables (e.g., relative humidity) have distinct effects on the variation of different types of NOCs. More research is needed to reveal the influencing mechanisms. This study clarifies the molecular compositions of NOCs and the mechanisms by which various factors influence the molecular variations. The findings can guide the assessment of NOCs evolution and deposition.
资助机构	National Key R&D Program of China ; Natural Science Foundation of China (NSFC) ; Guangdong Foundation for Program of Science and Technology Research
收录类别	SCI
语种	英语
关键词[WOS]	PEARL RIVER DELTA ; CONTAINING ORGANIC-COMPOUNDS ; HUMIC-LIKE SUBSTANCES ; RESOLUTION MASS-SPECTROMETRY ; BROWN CARBON ; AEROSOL COMPOSITION ; CHEMICAL-CHARACTERIZATION ; LIQUID-CHROMATOGRAPHY ; LIGHT-ABSORPTION ; SEASONAL CYCLES
研究领域[WOS]	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000777613400001
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/31376
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Li, Jun
作者单位	1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem,Guangdong Hong Kong M, Guangdong Prov Key Lab Environm Protect & Resourc, Guangzhou, Peoples R China 2.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai, Peoples R China 3.CAS Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Hongxing,Li, Jun,Tang, Jiao,et al. Factors Influencing the Molecular Compositions and Distributions of Atmospheric Nitrogen-Containing Compounds[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2022,127(7):15.
APA	Jiang, Hongxing.,Li, Jun.,Tang, Jiao.,Zhao, Shizhen.,Chen, Yinjun.,...&Zhang, Gan.(2022).Factors Influencing the Molecular Compositions and Distributions of Atmospheric Nitrogen-Containing Compounds.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,127(7),15.
MLA	Jiang, Hongxing,et al."Factors Influencing the Molecular Compositions and Distributions of Atmospheric Nitrogen-Containing Compounds".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 127.7(2022):15.