气候变化领域集成服务门户(CCPortal): A quantitative understanding of total OH reactivity and ozone production in a coastal industrial area during the Yokohama air quality study (AQUAS) campaign of summer 2019

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DOI	10.1016/j.atmosenv.2021.118754
	A quantitative understanding of total OH reactivity and ozone production in a coastal industrial area during the Yokohama air quality study (AQUAS) campaign of summer 2019
	Li J.; Kohno N.; Sakamoto Y.; Fukusaki Y.; Kousa Y.; Sadanaga Y.; Nakashima Y.; Sato K.; Ramasamy S.; Takami A.; Yoshino A.; Nakayama T.; Kato S.; Ono N.; Zhou J.; Bai Y.; Kajii Y.
发表日期	2021
ISSN	1352-2310
卷号	267
英文摘要	Field measurements performed in the Keihin coastal industrial area during summer 2019 were used to characterize the air quality and ozone production potential. The total hydroxyl radical (OH) reactivity was found to be moderate, peaking with a 2-h average of 29.0 s−1, corresponding to an OH lifetime of ∼34 ms. The average hourly total OH reactivity was 11.4 ± 5.2 s−1 (average ± standard deviation), and the measured OH sinks (from over 90 trace species) accounted for 92.3% of the total OH reactivity. Compared with a previous series of campaigns in urban/suburban Japan, this field work investigated an area often overlooked for atmospheric observations and found the smallest missing OH reactivity (on average, 0.88 s−1). The near-zero missing OH reactivity indicated that photochemical procedures were less important to the Yokohama air quality study (AQUAS–Yokohama) than the ubiquitous substantial secondary products in other areas. This study also demonstrated that oceanic air masses may quickly flush coastal industrial areas and that a limited activity of photochemistry due to elevated NOx effectively terminates OH radical recycling. A comparison with other campaigns in Japan exhibited a positive correlation with oxidants (ozone and formaldehyde), indicating secondary products have a critical role in explaining missing OH reactivity. The ozone production potential was corresponding to a volatile organic compound (VOC)-limited regime, while the missing OH reactivity led to an ∼8% increase in ozone formation. Finally, a positive correlation was found between the ozone production rate and the reactivity ratio between VOCs and NOx, in both the current study and various other field campaigns in urban areas. © 2021 Elsevier Ltd
关键词	LP-LIF Missing OH reactivity NOx–HOx–VOCs chemistry Ozone production VOC budget
语种	英语
scopus关键词	Air quality; Budget control; Free radicals; Nitrogen oxides; Ozone; Industrial area; LP-LIF; Missing OH reactivity; NO x; NOx–HOx–VOC chemistry; OH reactivity; Ozone production; Secondary product; Total OH reactivities; Volatile organic compound budget; Volatile organic compounds; formaldehyde; hydroxyl radical; ozone; air quality; chemical reaction; hydroxyl radical; industrial emission; ozone; photochemistry; summer; volatile organic compound; air pollution; air quality; ambient air; Article; atmosphere; comparative study; controlled study; derivatization; exhaust gas; field work; gas chromatography; industrial area; Japan; lod score; photochemistry; photolysis; quantitative analysis; relative humidity; seashore; species composition; spectrofluorometry; suburban area; summer; Honshu; Japan; Kanagawa; Kanto; Yokohama
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/248182
作者单位	Graduate School of Global Environmental Studies, Kyoto University, Kyoto, 606-8501, Japan; Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8316, Japan; Center for Regional Environmental Research, National Institute for Environmental Studies, Ibaraki, 305-8506, Japan; Yokohama Environmental Science Research Institute, Yokohama, Kanagawa, 221‒0024, 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; Faculty of Environmental Science and Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki, 852-8521, Japan; Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, Hachioji, Tokyo, 192-0397, Japan
推荐引用方式 GB/T 7714	Li J.,Kohno N.,Sakamoto Y.,et al. A quantitative understanding of total OH reactivity and ozone production in a coastal industrial area during the Yokohama air quality study (AQUAS) campaign of summer 2019[J],2021,267.
APA	Li J..,Kohno N..,Sakamoto Y..,Fukusaki Y..,Kousa Y..,...&Kajii Y..(2021).A quantitative understanding of total OH reactivity and ozone production in a coastal industrial area during the Yokohama air quality study (AQUAS) campaign of summer 2019.ATMOSPHERIC ENVIRONMENT,267.
MLA	Li J.,et al."A quantitative understanding of total OH reactivity and ozone production in a coastal industrial area during the Yokohama air quality study (AQUAS) campaign of summer 2019".ATMOSPHERIC ENVIRONMENT 267(2021).