气候变化领域集成服务门户(CCPortal): O3 photochemistry on O3 episode days and non-O3 episode days in Wuhan, Central China

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DOI	10.1016/j.atmosenv.2019.117236
	O3 photochemistry on O3 episode days and non-O3 episode days in Wuhan, Central China
	Zhu J.; Cheng H.; Peng J.; Zeng P.; Wang Z.; Lyu X.; Guo H.
发表日期	2020
ISSN	1352-2310
卷号	223
英文摘要	Simultaneous field measurements of ozone (O3) and its precursors were conducted at an urban site (Zi Yang, ZY) and a suburban site (Huang Pi, HP) in August 2018 in Wuhan, China. The observation results revealed that the mean levels of nitric oxide (NO), nitrogen dioxide (NO2), carbon monoxide (CO) and non-methane hydrocarbons (NMHCs) were higher at ZY than those detected at HP, while the opposite trend was observed for O3 levels. Compared to non-O3 episode days, higher levels of O3 and its precursors (i.e. NMHCs, NO and CO) were observed on O3 episode days at both ZY and HP. A chemical box model was used to investigate the O3 photochemistry on O3 episode days and non-O3 episode days at ZY and HP, and the O3 production was found to be dominated by the reaction of HO2 + NO at the two sites. In terms of O3 destruction, OH + NO2 was the major contributor at ZY, while the highest contribution at HP was from the reaction of O(1D) + H2O. The net O3 production rates increased significantly from non-O3 episode days to O3 episode days at both ZY and HP, indicating increased O3 accumulation on O3 episode days. In addition, the model simulation indicated that O3 formation was controlled by volatile organic compounds (VOCs) at ZY, whereas O3 formation was cooperative controlled by VOCs and NO at HP. Overall, these findings can provide valuable information on formulating and implementing O3 control strategies in urban and suburban areas in China. © 2019 Elsevier Ltd
关键词	Central China Diurnal variation Ozone Photochemistry
语种	英语
scopus关键词	Carbon monoxide; Chemical reactions; Nitric oxide; Nitrogen oxides; Ozone; Photochemical reactions; Volatile organic compounds; Central chinas; Control strategies; Diurnal variation; Field measurement; Model simulation; Nitrogen dioxides; Non-methane hydrocarbons; Urban and suburban areas; Urban growth
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249377
作者单位	School of Resource and Environmental Sciences, Wuhan University, Wuhan, China; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong
推荐引用方式 GB/T 7714	Zhu J.,Cheng H.,Peng J.,et al. O3 photochemistry on O3 episode days and non-O3 episode days in Wuhan, Central China[J],2020,223.
APA	Zhu J..,Cheng H..,Peng J..,Zeng P..,Wang Z..,...&Guo H..(2020).O3 photochemistry on O3 episode days and non-O3 episode days in Wuhan, Central China.ATMOSPHERIC ENVIRONMENT,223.
MLA	Zhu J.,et al."O3 photochemistry on O3 episode days and non-O3 episode days in Wuhan, Central China".ATMOSPHERIC ENVIRONMENT 223(2020).