Nocturnal atmospheric chemistry of NO3 and N2O5 over Changzhou in the Yangtze River Delta in China

doi:10.1016/j.jes.2021.09.016

	Nocturnal atmospheric chemistry of NO3 and N2O5 over Changzhou in the Yangtze River Delta in China
	Lin, Chuan 2,3; Hu, Renzhi 2; Xie, Pinhua 1,2,3; Lou, Shengrong 4; Zhang, Guoxian 2; Tong, Jinzhao 3; Liu, Jianguo 2; Liu, Wenqing 2
刊名	JOURNAL OF ENVIRONMENTAL SCIENCES
	2022-04-01
卷号	114
关键词	Nitrate radical (NO3) Dinitrogen pentoxide (N2O5) Cavity ring-down spectroscopy (CRDS) Styrene N2O5 uptake Nighttime chemistry
ISSN号	1001-0742
DOI	10.1016/j.jes.2021.09.016
通讯作者	Hu, Renzhi(rzhu@aiofm.ac.cn) ; Xie, Pinhua(phxie@aiofm.ac.cn)
英文摘要	Comprehensive observations of the nocturnal atmospheric oxidation of NO3 and N2O5 were conducted at a suburban site in Changzhou in the YRD using cavity ring-down spectroscopy (CRDS) from 27 May to 24 June, 2019. High concentrations of NO3 precursors were observed, and the nocturnal production rate of NO3 was determined to be 1.7 +/- 1.2 ppbv/hr. However, the nighttime NO3 and N2O5 concentrations were relatively low, with maximum values of 17.7 and 304.7 pptv, respectively, illustrating the rapid loss of NO3 and N2O5. It was found that NO3 dominated the nighttime atmospheric oxidation, accounting for 50.7%, while O-3 and OH only contributed 34.1% and 15.2%, respectively. For the reactions of NO3 with volatile organic compounds (VOCs), styrene was found to account for 60.3%, highlighting its dominant role in the NO3 reactivity. In general, the contributions of the reactions between NO3 and VOCs and the N2O5 uptake to NO3 loss were found to be about 39.5% and 60.5%, respectively, indicating that N2O5 uptake also played an important role in the loss of NO3 and N2O5, especially under the high humidity conditions in China. The formation of nitrate at night mainly originated from N2O5 uptake, and the maximum production rate of NO3 - reached 6.5 ppbv/hr. The average NOx consumption rate via NO3 and N2O5 chemistry was found to be 0.4 ppbv/h, accounting for 47.9% of the total NOx removal. The predominant roles of NO3 and N2O5 in nitrate formation and NOx removal in the YRD region was highlighted in this study. (c) 2022 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
资助项目	National Natural Science Foundation of China[42030609] ; National Natural Science Foundation of China[91644107] ; National Natural Science Foundation of China[61905003] ; National Natural Science Foundation of China[U19A2044] ; Natural Science Foundation of Anhui Province[2008085J20] ; National Key Research and Development Program of China[2017YFC0209403] ; Cultivating Project of Strategic Priority Research Program of Chinese Academy of Sciences[XDPB1901] ; Shanghai Academy of Environmental Sciences
WOS关键词	NITRATE FORMATION ; HETEROGENEOUS UPTAKE ; NIGHTTIME OXIDATION ; NITRYL CHLORIDE ; BOUNDARY-LAYER ; URBAN ; AEROSOL ; RADICALS ; CLNO2 ; SITE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000798822800017
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Anhui Province ; National Key Research and Development Program of China ; Cultivating Project of Strategic Priority Research Program of Chinese Academy of Sciences ; Shanghai Academy of Environmental Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131061]
专题	中国科学院合肥物质科学研究院
通讯作者	Hu, Renzhi; Xie, Pinhua
作者单位	1.Chinese Acad Sci, CAS Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361000, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Hefei 230026, Peoples R China 4.Shanghai Acad Environm Sci, State Environm Protect Key Lab Format & Prevent U, Shanghai 200233, Peoples R China
推荐引用方式 GB/T 7714	Lin, Chuan,Hu, Renzhi,Xie, Pinhua,et al. Nocturnal atmospheric chemistry of NO3 and N2O5 over Changzhou in the Yangtze River Delta in China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2022,114.
APA	Lin, Chuan.,Hu, Renzhi.,Xie, Pinhua.,Lou, Shengrong.,Zhang, Guoxian.,...&Liu, Wenqing.(2022).Nocturnal atmospheric chemistry of NO3 and N2O5 over Changzhou in the Yangtze River Delta in China.JOURNAL OF ENVIRONMENTAL SCIENCES,114.
MLA	Lin, Chuan,et al."Nocturnal atmospheric chemistry of NO3 and N2O5 over Changzhou in the Yangtze River Delta in China".JOURNAL OF ENVIRONMENTAL SCIENCES 114(2022).