气候变化领域集成服务门户(CCPortal): Evolution of Aerosol Under Moist and Fog Conditions in a Rural Forest Environment: Insights From High-Resolution Aerosol Mass Spectrometry

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DOI	10.1029/2020GL089714
	Evolution of Aerosol Under Moist and Fog Conditions in a Rural Forest Environment: Insights From High-Resolution Aerosol Mass Spectrometry
	Zhang J.; Lance S.; Marto J.; Sun Y.; Ninneman M.; Crandall B.A.; Wang J.; Zhang Q.; Schwab J.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:19
英文摘要	The effect of foggy/moist conditions on the characteristics of secondary organic aerosol (SOA) was studied. Analysis of the high-resolution time-of-flight aerosol mass spectrometer measurements identified two fresh biogenic SOA factors (BSOA: BSOA-1 and BSOA-2), hypothesized to be formed through the nighttime reaction of biogenic volatile organic compounds with nitrate radical. During foggy periods, the more oxidized oxygenated OA (MO-OOA) was scavenged most efficiently (86% removal), followed by the less oxidized OOA (LO-OOA) (55%), SO4 (53%), and BSOA (25%). Aerosol mass increased during fog events, and the post-fog aerosol mass was higher (11%) than during the prefog period, with a reduction for MO-OOA and an enhancement for LO-OOA and BSOA. The high positive correlation observed between aerosol liquid water (ALW) and BSOA suggests the importance of aqueous-phase processing on the BSOA formation, and an increase in log10(ALW) of 1 corresponded to an average increase of about 0.9 μg m−3 in BSOA. ©2020. The Authors.
英文关键词	Fog; Mass spectrometry; Volatile organic compounds; Aerosol mass spectrometry; Aqueous-phase processing; Biogenic volatile organic compounds; Forest environments; High resolution; Nitrate radicals; Positive correlations; Secondary organic aerosols; Aerosols; aerosol; aqueous solution; concentration (composition); correlation; fog; hypothesis testing; mass spectrometry; nitrate; rural area
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169629
作者单位	Atmospheric Sciences Research Center, University at Albany, State University of New York, Albany, NY, United States; now at Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States; Department of Environmental Toxicology, University of California, Davis, CA, United States
推荐引用方式 GB/T 7714	Zhang J.,Lance S.,Marto J.,et al. Evolution of Aerosol Under Moist and Fog Conditions in a Rural Forest Environment: Insights From High-Resolution Aerosol Mass Spectrometry[J],2020,47(19).
APA	Zhang J..,Lance S..,Marto J..,Sun Y..,Ninneman M..,...&Schwab J.J..(2020).Evolution of Aerosol Under Moist and Fog Conditions in a Rural Forest Environment: Insights From High-Resolution Aerosol Mass Spectrometry.Geophysical Research Letters,47(19).
MLA	Zhang J.,et al."Evolution of Aerosol Under Moist and Fog Conditions in a Rural Forest Environment: Insights From High-Resolution Aerosol Mass Spectrometry".Geophysical Research Letters 47.19(2020).