气候变化领域集成服务门户(CCPortal): Chemical characterization of secondary organic aerosol at a rural site in the southeastern US: Insights from simultaneous high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) and FIGAERO chemical ionization mass spectrometer (CIMS) measurements

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DOI	10.5194/acp-20-8421-2020
	Chemical characterization of secondary organic aerosol at a rural site in the southeastern US: Insights from simultaneous high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) and FIGAERO chemical ionization mass spectrometer (CIMS) measurements
	Chen Y.; Takeuchi M.; Nah T.; Xu L.; Canagaratna M.R.; Stark H.; Baumann K.; Canonaco F.; Prevot A.S.H.; Gregory Huey L.; Weber R.J.; Ng N.L.
发表日期	2020
ISSN	1680-7316
起始页码	8421
结束页码	8440
卷号	20 期号:14
英文摘要	The formation and evolution of secondary organic aerosol (SOA) were investigated at Yorkville, GA, in late summer (mid-August to mid-October 2016). The organic aerosol (OA) composition was measured using two online mass spectrometry instruments, the high-resolution time-offlight aerosol mass spectrometer (AMS) and the Filter Inlet for Gases and AEROsols coupled to a high-resolution timeof-flight iodide-adduct chemical ionization mass spectrometer (FIGAERO-CIMS). Through analysis of speciated organics data from FIGAERO-CIMS and factorization analysis of data obtained from both instruments, we observed notable SOA formation from isoprene and monoterpenes during both day and night. Specifically, in addition to isoprene epoxydiol (IEPOX) uptake, we identified isoprene SOA formation from non-IEPOX pathways and isoprene organic nitrate formation via photooxidation in the presence of NOx and nitrate radical oxidation. Monoterpenes were found to be the most important SOA precursors at night. We observed significant contributions from highly oxidized acid-like compounds to the aged OA factor from FIGAERO-CIMS. Taken together, our results showed that FIGAERO-CIMS measurements are highly complementary to the extensively used AMS factorization analysis, and together they provide more comprehensive insights into OA sources and composition. © 2020 Author(s).
语种	英语
scopus关键词	aerosol composition; aerosol formation; isoprene; mass spectrometry; measurement method; monoterpene; photooxidation; rural area; Georgia; United States; Yorkville
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/247646
作者单位	School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, United States; School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, United States; Aerodyne Research Inc., Billerica, MA 01821, United States; Department of Chemistry, University of Colorado at Boulder, Boulder, CO 80309, United States; Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States; Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, 5232, Switzerland; School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China; Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, United States
推荐引用方式 GB/T 7714	Chen Y.,Takeuchi M.,Nah T.,et al. Chemical characterization of secondary organic aerosol at a rural site in the southeastern US: Insights from simultaneous high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) and FIGAERO chemical ionization mass spectrometer (CIMS) measurements[J],2020,20(14).
APA	Chen Y..,Takeuchi M..,Nah T..,Xu L..,Canagaratna M.R..,...&Ng N.L..(2020).Chemical characterization of secondary organic aerosol at a rural site in the southeastern US: Insights from simultaneous high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) and FIGAERO chemical ionization mass spectrometer (CIMS) measurements.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(14).
MLA	Chen Y.,et al."Chemical characterization of secondary organic aerosol at a rural site in the southeastern US: Insights from simultaneous high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) and FIGAERO chemical ionization mass spectrometer (CIMS) measurements".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.14(2020).