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DOI	10.5194/acp-22-4841-2022
	Influence of photochemical loss of volatile organic compounds on understanding ozone formation mechanism
	Ma, Wei; Feng, Zemin; Zhan, Junlei; Liu, Yongchun; Liu, Pengfei; Liu, Chengtang; Ma, Qingxin; Yang, Kang; Wang, Yafei; He, Hong; Kulmala, Markku; Mu, Yujing; Liu, Junfeng
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	4841
结束页码	4851
卷号	22 期号:7 页码:11
英文摘要	Volatile organic compounds (VOCs) tend to be consumed by atmospheric oxidants, resulting in substantial photochemical loss during transport. An observation-based model was used to evaluate the influence of photochemical loss of VOCs on the sensitivity regime and mechanisms of ozone formation. Our results showed that a VOC-limited regime based on observed VOC concentrations shifted to a transition regime with a photochemical initial concentration of VOCs (PIC-VOCs) in the morning. The net ozone formation rate was underestimated by 3 ppbh(-1) (similar to 36 ppb d(-1)) based on the measured VOCs when compared with the PIC-VOCs. The relative contribution of the RO2 path to ozone production based on the PIC-VOCs accordingly increased by 13.4 %; in particular, the contribution of alkene-derived RO(2 )increased by approximately 10.2 %. In addition, the OH-HO2 radical cycle was obviously accelerated by highly reactive alkenes after accounting for photochemical loss of VOCs. The contribution of local photochemistry might be underestimated for both local and regional ozone pollution if consumed VOCs are not accounted for, and policymaking on ozone pollution prevention should focus on VOCs with a high reactivity.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000781040700001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273499
作者单位	Beijing University of Chemical Technology; Chinese Academy of Sciences; Research Center for Eco-Environmental Sciences (RCEES); Beijing Institute of Petrochemical Technology; Chinese Academy of Sciences; Institute of Urban Environment, CAS; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; University of Helsinki; North China University of Science & Technology
推荐引用方式 GB/T 7714	Ma, Wei,Feng, Zemin,Zhan, Junlei,et al. Influence of photochemical loss of volatile organic compounds on understanding ozone formation mechanism[J],2022,22(7):11.
APA	Ma, Wei.,Feng, Zemin.,Zhan, Junlei.,Liu, Yongchun.,Liu, Pengfei.,...&Liu, Junfeng.(2022).Influence of photochemical loss of volatile organic compounds on understanding ozone formation mechanism.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(7),11.
MLA	Ma, Wei,et al."Influence of photochemical loss of volatile organic compounds on understanding ozone formation mechanism".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.7(2022):11.