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DOI	10.5194/acp-20-11747-2020
	Sources and sinks driving sulfuric acid concentrations in contrasting environments: Implications on proxy calculations
	Dada L.; Ylivinkka I.; Baalbaki R.; Li C.; Guo Y.; Yan C.; Yao L.; Sarnela N.; Jokinen T.; Daellenbach K.R.; Yin R.; Deng C.; Chu B.; Nieminen T.; Wang Y.; Lin Z.; Thakur R.C.; Kontkanen J.; Stolzenburg D.; Sipilä M.; Hussein T.; Paasonen P.; Bianchi F.; Salma I.; Weidinger T.; Pikridas M.; Sciare J.; Jiang J.; Liu Y.; Petäjä T.; Kerminen V.-M.; Kulmala M.
发表日期	2020
ISSN	16807316
起始页码	11747
结束页码	11766
卷号	20 期号:20
英文摘要	Sulfuric acid has been shown to be a key driver for new particle formation and subsequent growth in various environments, mainly due to its low volatility. However, direct measurements of gas-phase sulfuric acid are oftentimes not available, and the current sulfuric acid proxies cannot predict, for example, its nighttime concentrations or result in significant discrepancies with measured values. Here, we define the sources and sinks of sulfuric acid in different environments and derive a new physical proxy for sulfuric acid to be utilized in locations and during periods when it is not measured. We used H2SO4 measurements from four different locations: Hyytiä lä , Finland; Agia Marina, Cyprus; Budapest, Hungary; and Beijing, China, representing semi-pristine boreal forest, rural environment in the Mediterranean area, urban environment and heavily polluted megacity, respectively. The new proxy takes into account the formation of sulfuric acid from SO2 via OH oxidation and other oxidation pathways, specifically via stabilized Criegee intermediates. The sulfuric acid sinks included in the proxy are its condensation sink (CS) and atmospheric clustering starting from H2SO4 dimer formation. Indeed, we found that the observed sulfuric acid concentration can be explained by the proposed sources and sinks with similar coefficients in the four contrasting environments where we have tested it. Thus, the new proxy is a more flexible and an important improvement over previous proxies. Following the recommendations in this paper, a proxy for a specific location can be derived. © 2020 EDP Sciences. All rights reserved.
语种	英语
scopus关键词	atmospheric pollution; boreal forest; concentration (composition); Mediterranean environment; megacity; sulfuric acid; urban pollution; Beijing [China]; Budapest; China; Cyprus; Finland; Hungary; Hyytiala; Pirkanmaa
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/143899
作者单位	Aerosol and Haze Laboratory, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China; Institute for Atmospheric and Earth System Research INAR/Physics, Faculty of Science, University of Helsinki, Helsinki, 00014, Finland; SMEAR II Station, University of Helsinki, Korkeakoski, 35500, Finland; State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China; Institute for Atmospheric and Earth System Research INAR/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, 00014, Finland; Department of Physics, University of Jordan, Amman, 11942, Jordan; Department Material Analysis and Indoor Chemistry, Fraunhofer WKI, Braunschweig, 38108, Germany; Institute of Chemistry, Eötvös University, P.O. Box 32, Budapest, 1518, Hungary; Department of Meteorology, Eötvös University, P.O. Box 32, Budapest, 1518, Hungary; Cyprus ...
推荐引用方式 GB/T 7714	Dada L.,Ylivinkka I.,Baalbaki R.,et al. Sources and sinks driving sulfuric acid concentrations in contrasting environments: Implications on proxy calculations[J],2020,20(20).
APA	Dada L..,Ylivinkka I..,Baalbaki R..,Li C..,Guo Y..,...&Kulmala M..(2020).Sources and sinks driving sulfuric acid concentrations in contrasting environments: Implications on proxy calculations.Atmospheric Chemistry and Physics,20(20).
MLA	Dada L.,et al."Sources and sinks driving sulfuric acid concentrations in contrasting environments: Implications on proxy calculations".Atmospheric Chemistry and Physics 20.20(2020).