Identification of ozone sensitivity for NO2 and secondary HCHO based on MAX-DOAS measurements in northeast China

doi:10.1016/j.envint.2021.107048

	Identification of ozone sensitivity for NO2 and secondary HCHO based on MAX-DOAS measurements in northeast China
	Xue, Jiexiao 1; Zhao, Ting 1; Luo, Yifu 1; Miao, Congke 1; Su, Pinjie 1; Liu, Feng 1; Zhang, Guohui 1; Qin, Sida 2; Song, Youtao 1; Bu, Naishun 1,3
刊名	ENVIRONMENT INTERNATIONAL
	2022-02-01
卷号	160
关键词	MAX-DOAS Formaldehyde Secondary source HCHO/NO2 Ozone production sensitivity
ISSN号	0160-4120
DOI	10.1016/j.envint.2021.107048
通讯作者	Bu, Naishun(bunaishun@lnu.edu.cn) ; Xing, Chengzhi(xingcz@aiofm.ac.cn)
英文摘要	In this study, tropospheric formaldehyde (HCHO) vertical column densities (VCDs) were measured using multiaxis differential optical absorption spectroscopy (MAX-DOAS) from January to November 2019 in Shenyang, Northeast China. The maximum HCHO VCD value appeared in the summer (1.74 x 10(16) molec/cm(2)), due to increased photo-oxidation of volatile organic compounds (VOCs). HCHO concentrations increased from 08:00 and peaked near 13:00, which was mainly attributed to the increased release of isoprene from plants and enhanced photolysis at noon. The HCHO VCDs observed by MAX-DOAS and OMI have a good correlation coefficient (R) of 0.78, and the contributions from primary and secondary HCHO sources were distinguished by the multi-linear regression model. The anthropogenic emissions showed unobvious seasonal variations, and the primary HCHO was relatively stable in Shenyang. Secondary HCHO contributed 82.62%, 83.90%, 78.90%, and 41.53% to the total measured ambient HCHO during the winter, spring, summer, and autumn, respectively. We also found a good correlation (R = 0.78) between enhanced vegetation index (EVI) and HCHO VCDs, indicating that the oxidation of biogenic volatile organic compounds (BVOCs) was the main source of HCHO. The ratio of secondary HCHO to nitrogen dioxide (NO2) was used as the tracer to analyze O-3-NOx-VOC sensitivities. We found that the VOC-limited, VOC-NOx-limited, and NOx-limited regimes made up 93.67%, 6.23%, 0.11% of the overall measurements, respectively. In addition, summertime ozone (O-3) sensitivity changed from VOC-limited in the morning to VOC-NOx-limited in the afternoon. Therefore, this study offers information on HCHO sources and corresponding O-3 production sensitivities to support strategic management decisions.
资助项目	National Science Foundation of China[31972522] ; Liaoning Revitalization Talents Program[XLYC2007032] ; National Key Research and Development Project of China[2018YFC1801200] ; Major Science and Technology Project of Liaoning Province[2019JH1/10300001] ; Scientific Research Fund of Liaoning Provincial Education Department[LQN202003] ; Open Research Fund of Key Laboratory of Wetland Ecology and Environment Research in Cold Regions of Heilongjiang Province[201903] ; Presidential Foundation of the Hefei Institutes of Physical Science, Chinese Academy Sciences, China[YZJJ2021QN06] ; Research Fund Program of Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality[GHML2021-102] ; National Key Research and Development Program of China[2017YFC0212500]
WOS关键词	ABSORPTION CROSS-SECTIONS ; AEROSOL OPTICAL-PROPERTIES ; VOLATILE ORGANIC-COMPOUNDS ; AMBIENT FORMALDEHYDE ; TROPOSPHERIC NO2 ; CARBONYL-COMPOUNDS ; RIVER DELTA ; VERTICAL DISTRIBUTIONS ; STATISTICAL-ANALYSIS ; MEXICO-CITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000746511100018
资助机构	National Science Foundation of China ; Liaoning Revitalization Talents Program ; National Key Research and Development Project of China ; Major Science and Technology Project of Liaoning Province ; Scientific Research Fund of Liaoning Provincial Education Department ; Open Research Fund of Key Laboratory of Wetland Ecology and Environment Research in Cold Regions of Heilongjiang Province ; Presidential Foundation of the Hefei Institutes of Physical Science, Chinese Academy Sciences, China ; Research Fund Program of Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127633]
专题	中国科学院合肥物质科学研究院
通讯作者	Bu, Naishun; Xing, Chengzhi
作者单位	1.Liaoning Univ, Sch Environm Sci, Shenyang 110036, Peoples R China 2.Liaoning Sci & Technol Ctr Ecol & Environm Protec, Shenyang 110161, Peoples R China 3.Harbin Univ, Key Lab Wetland Ecol & Environm Res Cold Reg Heil, Harbin 150086, 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
推荐引用方式 GB/T 7714	Xue, Jiexiao,Zhao, Ting,Luo, Yifu,et al. Identification of ozone sensitivity for NO2 and secondary HCHO based on MAX-DOAS measurements in northeast China[J]. ENVIRONMENT INTERNATIONAL,2022,160.
APA	Xue, Jiexiao.,Zhao, Ting.,Luo, Yifu.,Miao, Congke.,Su, Pinjie.,...&Xing, Chengzhi.(2022).Identification of ozone sensitivity for NO2 and secondary HCHO based on MAX-DOAS measurements in northeast China.ENVIRONMENT INTERNATIONAL,160.
MLA	Xue, Jiexiao,et al."Identification of ozone sensitivity for NO2 and secondary HCHO based on MAX-DOAS measurements in northeast China".ENVIRONMENT INTERNATIONAL 160(2022).