Study on Vertical Distribution of Atmospheric HONO in Winter Based on Multi-Axis Differential Absorption Spectroscopy

doi:10.3964/j.issn.1000-0593(2022)07-2039-08

	Study on Vertical Distribution of Atmospheric HONO in Winter Based on Multi-Axis Differential Absorption Spectroscopy
	Tian Xin 3,5,6; Ren Bo 1,3; Xie Pin-hua 1,2,3,5,6; Mou Fu-sheng 4; Xu Jin 3; Li Ang 3; Li Su-wen 4; Zheng Jiang-yi 3; Li Xiao-mei 3; Ren Hong-mei 3
刊名	SPECTROSCOPY AND SPECTRAL ANALYSIS
	2022-07-01
卷号	42
关键词	Multi-Axis differential optical absorption spectroscopy NO2 HONO Vertical distribution Inversion algorithm
ISSN号	1000-0593
DOI	10.3964/j.issn.1000-0593(2022)07-2039-08
通讯作者	Mou Fu-sheng(moufusheng@163.com)
英文摘要	Nitrite (HONO), as one of the sources of OH free radical in the atmosphere, plays an important role in the oxidative capacity of the atmosphere. Moreover, previous studies have shown that HONO plays an important role in generating atmospheric haze in winter. The conversion of NO2 is considered one of the important sources of HONO. Therefore, researching the vertical distribution characteristics of HONO in the atmosphere has an important role in studying the formation and control of atmospheric pollution. Because of the important role of HONO in the atmosphere, currently, the methods of chemiluminescence and spectroscopy, as well as indirect methods, are mainly used to measure HONO in the atmosphere. MAX-DOAS method is a passive remote sensing technology that can quickly and effectively obtain the three-dimensional distribution of pollutants in the atmosphere. In this paper, the MAX-DOAS instrument was used for stereo detection of HONO and NO2 in the winter atmosphere of the Science Island of Hefei in December 2017. The vertical distribution characteristics of those are obtained through the PriAM algorithm. The research results show that during the observation period, the NO2 vertical mixed concentration (VMR) and vertical column concentration (VCD) in the range of 10m near the ground were in the range of 0.51x10(11)similar to 20.5x10(11) molecules center dot cm(-3) and 6.0x10(15)similar to 5.5x10(16) molecules center dot cm(-2), respectively. The concentration was mainly concentrated within 1 km, and evenly mixed near the ground. However, the VMR and VCD of HONO were between 0.03X10(10)similar to 5.1x10(10) molecules center dot cm(-3) and 3.5x10(14)similar to 7.0x10(15) molecules center dot cm(-2), respectively. The upper level of concentration was within 100m, and its concentration decreased significantly with the increase in height. The HONO/NO2 ratio was between 0.17%similar to 16.0% (VMR) and 1.0%similar to 25.0 % (VCD), indicating that HONO was mainly derived from NO2 conversion during the study period. Under a typical polluted episode (2017.12.26-2017.12.31), HONO/NO2 was greater than 5%, and the concentration of HONO increased (greater than 0.26x10(11) molecules center dot cm(-3)), indicating that the conversion of NO2 to HONO became strong. By combining the wind field changes to study the source of NO2 during the pollution period, it was found that the transmission in the urban area of Hefei, northern and northwestern Anhui has a significant effect on NO2 and HONO.
WOS关键词	MAX-DOAS OBSERVATIONS ; CROSS-SECTIONS ; NITROUS-ACID ; RURAL SITE ; NM ; MODEL ; NO2 ; FORMALDEHYDE ; SPECTRA
WOS研究方向	Spectroscopy
语种	英语
出版者	OFFICE SPECTROSCOPY & SPECTRAL ANALYSIS
WOS记录号	WOS:000836761300008
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/132057]
专题	中国科学院合肥物质科学研究院
通讯作者	Mou Fu-sheng
作者单位	1.Univ Sci & Technol China, Sch Environm Sci & Optoelect Technol, Hefei 230026, Peoples R China 2.Chinese Acad Sci, CAS Ctr Excellence Urban Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China 3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 4.Huaibei Normal Univ, Anhui Prov Key Lab Pollutant Sensit Mat & Environ, Huaibei 235000, Peoples R China 5.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China 6.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China
推荐引用方式 GB/T 7714	Tian Xin,Ren Bo,Xie Pin-hua,et al. Study on Vertical Distribution of Atmospheric HONO in Winter Based on Multi-Axis Differential Absorption Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2022,42.
APA	Tian Xin.,Ren Bo.,Xie Pin-hua.,Mou Fu-sheng.,Xu Jin.,...&Tian Wei.(2022).Study on Vertical Distribution of Atmospheric HONO in Winter Based on Multi-Axis Differential Absorption Spectroscopy.SPECTROSCOPY AND SPECTRAL ANALYSIS,42.
MLA	Tian Xin,et al."Study on Vertical Distribution of Atmospheric HONO in Winter Based on Multi-Axis Differential Absorption Spectroscopy".SPECTROSCOPY AND SPECTRAL ANALYSIS 42(2022).