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DOI	10.5194/acp-21-18413-2021
	Measurement report: Photochemical production and loss rates of formaldehyde and ozone across Europe
	Nussbaumer C.M.; Crowley J.N.; Schuladen J.; Williams J.; Hafermann S.; Reiffs A.; Axinte R.; Harder H.; Ernest C.; Novelli A.; Sala K.; Martinez M.; Mallik C.; Tomsche L.; Plass-Dülmer C.; Bohn B.; Lelieveld J.; Fischer H.
发表日期	2021
ISSN	1680-7316
起始页码	18413
结束页码	18432
卷号	21 期号:24
英文摘要	Various atmospheric sources and sinks regulate the abundance of tropospheric formaldehyde (HCHO), which is an important trace gas impacting the HOx (HO2+OH) budget and the concentration of ozone (O3). In this study, we present the formation and destruction terms of ambient HCHO and O3 calculated from in situ observations of various atmospheric trace gases measured at three different sites across Europe during summertime. These include a coastal site in Cyprus, in the scope of the Cyprus Photochemistry Experiment (CYPHEX) in 2014, a mountain site in southern Germany, as part of the Hohenpeißenberg Photochemistry Experiment (HOPE) in 2012, and a forested site in Finland, where measurements were performed during the Hyytiälä United Measurements of Photochemistry and Particles (HUMPPA) campaign in 2010. We show that, at all three sites, formaldehyde production from the OH oxidation of methane (CH4), acetaldehyde (CH3CHO), isoprene (C5H8) and methanol (CH3OH) can almost completely balance the observed loss via photolysis, OH oxidation and dry deposition. Ozone chemistry is clearly controlled by nitrogen oxides (NOxNO+NO2) that include O3 production from NO2 photolysis and O3 loss via the reaction with NO. Finally, we use the HCHO budget calculations to determine whether net ozone production is limited by the availability of VOCs (volatile organic compounds; VOC-limited regime) or NOx (NOx-limited regime). At the mountain site in Germany, O3 production is VOC limited, whereas it is NOx limited at the coastal site in Cyprus. The forested site in Finland is in the transition regime. © 2021 Clara M. Nussbaumer et al.
语种	英语
scopus关键词	concentration (composition); formaldehyde; oxidation; ozone; photochemistry; photolysis; trace gas; Cyprus; Finland; Germany
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/246357
作者单位	Department of Atmospheric Chemistry, Max Planck Institute for Chemistry, Mainz, 55128, Germany; Climate and Atmosphere Research Center, Cyprus Institute, Nicosia, Cyprus; Meteorological Observatory Hohenpeissenberg (MOHp), German Meteorological Service, Hohenpeissenberg, 83282, Germany; Institute of Energy and Climate Research - Troposphere (IEK-8), Forschungszentrum Jülich GmbH, Jülich, 52428, Germany; Department of Neurology, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, 55131, Germany; Department of Atmospheric Science, Central University of Rajasthan, Rajasthan305817, India; Institute of Atmospheric Physics, German Aerospace Center, Weßling-Oberpfaffenhofen82234, Germany
推荐引用方式 GB/T 7714	Nussbaumer C.M.,Crowley J.N.,Schuladen J.,et al. Measurement report: Photochemical production and loss rates of formaldehyde and ozone across Europe[J],2021,21(24).
APA	Nussbaumer C.M..,Crowley J.N..,Schuladen J..,Williams J..,Hafermann S..,...&Fischer H..(2021).Measurement report: Photochemical production and loss rates of formaldehyde and ozone across Europe.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(24).
MLA	Nussbaumer C.M.,et al."Measurement report: Photochemical production and loss rates of formaldehyde and ozone across Europe".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.24(2021).