气候变化领域集成服务门户(CCPortal): Ammonium adduct chemical ionization to investigate anthropogenic oxygenated gas-phase organic compounds in urban air

CCPortal

DOI	10.5194/acp-22-14377-2022
	Ammonium adduct chemical ionization to investigate anthropogenic oxygenated gas-phase organic compounds in urban air
	Khare, Peeyush; Krechmer, Jordan E.; Machesky, Jo E.; Hass-Mitchell, Tori; Cao, Cong; Wang, Junqi; Majluf, Francesca; Lopez-Hilfiker, Felipe; Malek, Sonja; Wang, Will; Seltzer, Karl; Pye, Havala O. T.; Commane, Roisin; McDonald, Brian C.; Toledo-Crow, Ricardo; Mak, John E.; Gentner, Drew R.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	14377
结束页码	14399
卷号	22 期号:21 页码:23
英文摘要	Volatile chemical products (VCPs) and other non-combustion-related sources have become important for urban air quality, and bottom-up calculations report emissions of a variety of functionalized compounds that remain understudied and uncertain in emissions estimates. Using a new instrumental configuration, we present online measurements of oxygenated organic compounds in a US megacity over a 10 d wintertime sampling period, when biogenic sources and photochemistry were less active. Measurements were conducted at a rooftop observatory in upper Manhattan, New York City, USA using a Vocus chemical ionization time-of-flight mass spectrometer, with ammonium (NH4+) as the reagent ion operating at 1 Hz. The range of observations spanned volatile, intermediate-volatility, and semi-volatile organic compounds, with targeted analyses of similar to 150 ions, whose likely assignments included a range of functionalized compound classes such as glycols, glycol ethers, acetates, acids, alcohols, acrylates, esters, ethanolamines, and ketones that are found in various consumer, commercial, and industrial products. Their concentrations varied as a function of wind direction, with enhancements over the highly populated areas of the Bronx, Manhattan, and parts of New Jersey, and included abundant concentrations of acetates, acrylates, ethylene glycol, and other commonly used oxygenated compounds. The results provide top-down constraints on wintertime emissions of these oxygenated and functionalized compounds, with ratios to common anthropogenic marker compounds and comparisons of their relative abundances to two regionally resolved emissions inventories used in urban air quality models.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000880201900001
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/273483
作者单位	Yale University; Aerodyne Research; State University of New York (SUNY) System; State University of New York (SUNY) Stony Brook; TOFWERK AG; United States Environmental Protection Agency; United States Environmental Protection Agency; Columbia University; National Oceanic Atmospheric Admin (NOAA) - USA; City University of New York (CUNY) System; Yale University; Swiss Federal Institutes of Technology Domain; Paul Scherrer Institute; Franklin W. Olin College of Engineering; Bruker Corporation
推荐引用方式 GB/T 7714	Khare, Peeyush,Krechmer, Jordan E.,Machesky, Jo E.,et al. Ammonium adduct chemical ionization to investigate anthropogenic oxygenated gas-phase organic compounds in urban air[J],2022,22(21):23.
APA	Khare, Peeyush.,Krechmer, Jordan E..,Machesky, Jo E..,Hass-Mitchell, Tori.,Cao, Cong.,...&Gentner, Drew R..(2022).Ammonium adduct chemical ionization to investigate anthropogenic oxygenated gas-phase organic compounds in urban air.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(21),23.
MLA	Khare, Peeyush,et al."Ammonium adduct chemical ionization to investigate anthropogenic oxygenated gas-phase organic compounds in urban air".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.21(2022):23.