气候变化领域集成服务门户(CCPortal): Kinetics and impacting factors of HO2 uptake onto submicron atmospheric aerosols during the 2019 Air QUAlity Study (AQUAS) in Yokohama, Japan

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DOI	10.5194/acp-21-12243-2021
	Kinetics and impacting factors of HO2 uptake onto submicron atmospheric aerosols during the 2019 Air QUAlity Study (AQUAS) in Yokohama, Japan
	Zhou J.; Sato K.; Bai Y.; Fukusaki Y.; Kousa Y.; Ramasamy S.; Takami A.; Yoshino A.; Nakayama T.; Sadanaga Y.; Nakashima Y.; Li J.; Murano K.; Kohno N.; Sakamoto Y.; Kajii Y.
发表日期	2021
ISSN	1680-7316
起始页码	12243
结束页码	12260
卷号	21 期号:16
英文摘要	HO2 uptake kinetics onto ambient aerosols play pivotal roles in tropospheric chemistry but are not fully understood. Field measurements of aerosol chemical and physical properties should be linked to molecular-level kinetics; however, given that the HO2 reactivity of ambient aerosols is low, traditional analytical techniques are unable to achieve this goal. We developed an online approach to precisely investigate the lower-limit values of (i) the HO2 reactivities of ambient gases and aerosols and (ii) HO2 uptake coefficients onto ambient aerosols ( 3) during the 2019 Air QUAlity Study (AQUAS) in Yokohama, Japan. We identified the effects of individual chemical components of ambient aerosols on 3. The results were verified in laboratory studies on individual chemical components: transition metals play a key role in HO2 uptake processes, and chemical components indirectly influence such processes (i.e., by altering aerosol surface properties or providing active sites), with smaller particles tending to yield higher 3 values than larger particles owing to the limitation of gas-phase diffusion being smaller with micrometer particles and the distribution of depleting species such as transition metal ions being mostly distributed in accumulation mode of aerosol. The modeling of 3 utilized transition metal chemistry derived by previous studies, further confirming our conclusion. However, owing to the high NO concentrations in Yokohama, peroxy radical loss onto submicron aerosols has a negligible impact on O3 production rate and sensitivity regime. © 2021 Jun Zhou et al.
语种	英语
scopus关键词	aerosol composition; air quality; ambient air; hydrogen peroxide; physicochemical property; reaction kinetics; Honshu; Japan; Kanagawa; Kanto; Yokohama
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/246651
作者单位	Institute for Environmental and Climate Research, Jinan University, Guangzhou, 511443, China; Guangdong-Hongkong-Macau Joint Laboratory of Collaborative Innovation for Environmental Quality, Guangzhou, 511443, China; Graduate School of Global Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan; Center for Regional Environmental Research, National Institute for Environmental Studies, Ibaraki305-8506, Japan; Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8316, Japan; Yokohama Environmental Science Research Institute, Yokohama Kanagawa221-0024, Japan; Faculty of Environmental Science and Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki, 852-8521, Japan; Graduate School of Engineering, Osaka Prefecture University, Osaka, 599-8531, Japan; Graduate School of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, 183-8538, Japan
推荐引用方式 GB/T 7714	Zhou J.,Sato K.,Bai Y.,et al. Kinetics and impacting factors of HO2 uptake onto submicron atmospheric aerosols during the 2019 Air QUAlity Study (AQUAS) in Yokohama, Japan[J],2021,21(16).
APA	Zhou J..,Sato K..,Bai Y..,Fukusaki Y..,Kousa Y..,...&Kajii Y..(2021).Kinetics and impacting factors of HO2 uptake onto submicron atmospheric aerosols during the 2019 Air QUAlity Study (AQUAS) in Yokohama, Japan.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(16).
MLA	Zhou J.,et al."Kinetics and impacting factors of HO2 uptake onto submicron atmospheric aerosols during the 2019 Air QUAlity Study (AQUAS) in Yokohama, Japan".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.16(2021).