气候变化领域集成服务门户(CCPortal): Volatile chemical product emissions enhance ozone and modulate urban chemistry

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DOI	10.1073/pnas.2026653118
	Volatile chemical product emissions enhance ozone and modulate urban chemistry
	Coggona M.M.; Gkatzelis G.I.; McDonald B.C.; Gilman J.B.; Schwantes R.H.; Abuhassan N.; Aikin K.C.; Arendd M.F.; Berkoff T.A.; Brown S.S.; Campos T.L.; Dickerson R.R.; Gronoff G.; Hurley J.F.; Isaacman-Vanwertz G.; Koss A.R.; Li M.; McKeen S.A.; Moshary F.; Peischl J.; Pospisilova V.; Ren X.; Wilson A.; Wu Y.; Trainer M.; Warneke C.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:32
英文摘要	Decades of air quality improvements have substantially reduced the motor vehicle emissions of volatile organic compounds (VOCs). Today, volatile chemical products (VCPs) are responsible for half of the petrochemical VOCs emitted in major urban areas. We show that VCP emissions are ubiquitous in US and European cities and scale with population density. We report significant VCP emissions for New York City (NYC), including a monoterpene flux of 14.7 to 24.4 kg · d-1 · km-2 from fragranced VCPs and other anthropogenic sources, which is comparable to that of a summertime forest. Photochemical modeling of an extreme heat event, with ozone well in excess of US standards, illustrates the significant impact of VCPs on air quality. In the most populated regions of NYC, ozone was sensitive to anthropogenic VOCs (AVOCs), even in the presence of biogenic sources. Within this VOC-sensitive regime, AVOCs contributed upwards of ∼20 ppb to maximum 8-h average ozone. VCPs accounted for more than 50% of this total AVOC contribution. Emissions from fragranced VCPs, including personal care and cleaning products, account for at least 50% of the ozone attributed to VCPs. We show that model simulations of ozone depend foremost on the magnitude of VCP emissions and that the addition of oxygenated VCP chemistry impacts simulations of key atmospheric oxidation products. NYC is a case study for developed megacities, and the impacts of VCPs on local ozone are likely similar for other major urban regions across North America or Europe. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Air pollution; Ozone; Urban atmospheric chemistry; Volatile chemical products
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238667
作者单位	Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, United States; Chemical Sciences Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO 80305, United States; Joint Center for Earth Systems Technology, University of Maryland Baltimore County, Baltimore, MD 21250, United States; Natl. Oceanic and Atmosph. Admin. Coop. Sci. Ctr. for Earth Syst. Sci. and Remote Sensing Technol., City College of New York, New York, NY 10031, United States; Department of Electrical Engineering, City College of New York, New York, NY 10031, United States; Langley Research Center, National Space and Aeronautical Administration, Hampton, VA 23666, United States; National Center for Atmospheric Research, Atmospheric Chemistry Observations and Modeling Laboratory, Boulder, CO 80305, United States; Department of Atmospheric and Oceanic Science, University of Maryland, College Park, MD 20742, United States; Department of Civil and Environmental Engineer...
推荐引用方式 GB/T 7714	Coggona M.M.,Gkatzelis G.I.,McDonald B.C.,et al. Volatile chemical product emissions enhance ozone and modulate urban chemistry[J],2021,118(32).
APA	Coggona M.M..,Gkatzelis G.I..,McDonald B.C..,Gilman J.B..,Schwantes R.H..,...&Warneke C..(2021).Volatile chemical product emissions enhance ozone and modulate urban chemistry.Proceedings of the National Academy of Sciences of the United States of America,118(32).
MLA	Coggona M.M.,et al."Volatile chemical product emissions enhance ozone and modulate urban chemistry".Proceedings of the National Academy of Sciences of the United States of America 118.32(2021).