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Vertical distribution and temporal evolution of formaldehyde and glyoxal derived from MAX-DOAS observations: The indicative role of VOC sources

文献类型：期刊论文

作者Hong, Qianqian8; Liu, Cheng1,3,4,5; Hu, Qihou4; Zhang, Yanli6; Xing, Chengzhi2,4; Ou, Jinping7; Tan, Wei4; Liu, Haoran7; Huang, Xiaoqing6; Wu, Zhenfeng6
刊名JOURNAL OF ENVIRONMENTAL SCIENCES
出版日期2022-12-01
卷号122
ISSN号1001-0742
关键词Formaldehyde Glyoxal MAX-DOAS Vertical distribution VOC
DOI10.1016/j.jes.2021.09.025
通讯作者Liu, Cheng(chliu81@ustc.edu.cn) ; Hu, Qihou(qhhu@aiofm.ac.cn)
英文摘要Formaldehyde (HCHO) and glyoxal (CHOCHO) are important oxidization intermediates of most volatile organic compounds (VOCs), but their vertical evolution in urban areas is not well understood. Vertical profiles of HCHO, CHOCHO, and nitrogen dioxide (NO 2 ) were retrieved from ground-based Multi-Axis Differential Optical Absorption Spectroscopy (MAXDOAS) observations in Hefei, China. HCHO and CHOCHO vertical profiles prefer to occur at higher altitudes compared to NO 2 , which might be caused by the photochemistry-oxidation of longer-lived VOCs at higher altitudes. Monthly means of HCHO concentrations were higher in summer, while enhanced amounts of NO 2 were mainly observed in winter. CHOCHO exhibited a hump-like seasonal variation, with higher monthly-averaged values not only occurred in warm months (July-August) but also in cold months (November-December). Peak values mainly occurred during noon for HCHO but emerged in the morning for CHOCHO and NO 2 , suggesting that HCHO is stronger link to photochemistry than CHOCHO. We further use the glyoxal to formaldehyde ratio (GFR) to investigate the VOC sources at differ-ent altitudes. The lowest GFR value is almost found in the altitude from 0.2 to 0.4 km , then rises rapidly as the altitude increases. The GFR results indicate that the largest con-tributor of the precursor VOC is biogenic VOCs at lower altitudes, while at higher altitudes is anthropogenic VOCs. Our findings provide a lot more insight into VOC sources at vertical direction, but more verification is recommended to be done in the future. (c) 2022 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
WOS关键词ABSORPTION CROSS-SECTIONS ; NORTH CHINA PLAIN ; RURAL SITE ; SECONDARY SOURCES ; LOWER TROPOSPHERE ; MIXING RATIOS ; RIVER DELTA ; NO2 ; HCHO ; METHYLGLYOXAL
资助项目Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23020301] ; National Natural Science Foundation of China[51778596] ; National Natural Science Foundation of China[41977184] ; National Natural Science Foundation of China[41941011] ; Key Research and Development Project of Anhui Province[202104i07020002] ; Anhui Science and Technology Major Project[18030801111] ; Major Projects of High Resolution Earth Observation Systems of National Science and Technology[05-Y30B01-9001-19/20-3] ; Youth Innovation Promotion Association of CAS[2021443] ; Young Talent Project of the Center for Excellence in Regional Atmospheric Environment, CAS[CERAE202004] ; Fundamental Research Funds for the Central Universities[JUSRP12042]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者SCIENCE PRESS
WOS记录号WOS:000798823500009
资助机构Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Key Research and Development Project of Anhui Province ; Anhui Science and Technology Major Project ; Major Projects of High Resolution Earth Observation Systems of National Science and Technology ; Youth Innovation Promotion Association of CAS ; Young Talent Project of the Center for Excellence in Regional Atmospheric Environment, CAS ; Fundamental Research Funds for the Central Universities
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/130979]  
专题中国科学院合肥物质科学研究院
通讯作者Liu, Cheng; Hu, Qihou
作者单位1.Univ Sci & Technol China, Dept Precis Machinery & Precis Instrumentat, Hefei 230026, Peoples R China
2.Guangdong Hongkong Macau Joint Lab Collaborat Inn, Guangzhou 510632, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
4.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
5.Univ Sci & Technol China, Anhui Prov Key Lab Polar Environm & Global Change, Hefei 230026, Peoples R China
6.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Protect & Resources Ut, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China
7.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China
8.Jiangnan Univ, Sch Environm & Civil Engn, Wuxi 214122, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Hong, Qianqian,Liu, Cheng,Hu, Qihou,et al. Vertical distribution and temporal evolution of formaldehyde and glyoxal derived from MAX-DOAS observations: The indicative role of VOC sources[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2022,122.
APA Hong, Qianqian.,Liu, Cheng.,Hu, Qihou.,Zhang, Yanli.,Xing, Chengzhi.,...&Wu, Zhenfeng.(2022).Vertical distribution and temporal evolution of formaldehyde and glyoxal derived from MAX-DOAS observations: The indicative role of VOC sources.JOURNAL OF ENVIRONMENTAL SCIENCES,122.
MLA Hong, Qianqian,et al."Vertical distribution and temporal evolution of formaldehyde and glyoxal derived from MAX-DOAS observations: The indicative role of VOC sources".JOURNAL OF ENVIRONMENTAL SCIENCES 122(2022).

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来源：合肥物质科学研究院

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