气候变化领域集成服务门户(CCPortal): Size-Resolved Mixing States and Sources of Amine-Containing Particles in the East China Sea

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DOI	10.1029/2020JD033162
	Size-Resolved Mixing States and Sources of Amine-Containing Particles in the East China Sea
	Liu Z.; Chen H.; Li Q.; Sun J.; Wang L.; Yang X.; Xiao H.; Li M.; Chen J.
发表日期	2020
ISSN	2169897X
卷号	125 期号:18
英文摘要	Single-particle aerosol mass spectrometry was employed during a cruise campaign from 3 to 27 June 2017 to investigate the mixing states and sources of amine-containing particles in the East China Sea. A total of 271,160 particles were successfully identified, and 19,861 of these particles contained amines. Monomethylamine (MMA), trimethylamine (TMA), and diethylamine (DEA) were the most abundant amines. They accounted for 50%, 16%, and 29%, respectively, of the amine-containing particles. The size distributions (mean ± geometric standard deviation) of the MMA-, TMA-, and DEA-containing particles peaked at 0.58 ± 0.12, 0.56 ± 0.10, and 0.40 ± 0.10 μm, respectively. Using an adaptive resonance theory neural network algorithm, four major clusters of amine-containing particles were categorized: carbon-rich particles, K-rich particles, Na-rich particles, and metal-rich particles. The MMA-containing particles contained abundant elemental carbon-, K-, Mn-, and Fe-rich particles, which exhibit higher concentrations in land air masses, indicating that the MMA mainly originated from terrestrial anthropogenic sources. The TMA-containing particles contained abundant organic and elemental carbon-, EC-, K-, and V-rich particles. High concentrations of TMA-containing particles were measured near ports, indicating the significant contribution of the ports. The DEA-containing particles contained abundant organic and elemental carbon-, K-, Mn-, Cu-, and Na-rich particles, and high concentrations of DEA-containing particles were observed in remote marine areas, suggesting that both terrestrial anthropogenic and marine sources are important contributors to DEA-containing particles. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	amines; East China Sea; single-particle aerosol mass spectrometry; sources
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185743
作者单位	Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention, Department of Environmental Science and Engineering, Institute of Atmospheric Sciences, Fudan University, Shanghai, China; Institute of Eco-Chongming, Shanghai, China; Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China; Institute of Mass Spectrometry and Atmospheric Envrionment, Jinan University, Guangzhou, China
推荐引用方式 GB/T 7714	Liu Z.,Chen H.,Li Q.,et al. Size-Resolved Mixing States and Sources of Amine-Containing Particles in the East China Sea[J],2020,125(18).
APA	Liu Z..,Chen H..,Li Q..,Sun J..,Wang L..,...&Chen J..(2020).Size-Resolved Mixing States and Sources of Amine-Containing Particles in the East China Sea.Journal of Geophysical Research: Atmospheres,125(18).
MLA	Liu Z.,et al."Size-Resolved Mixing States and Sources of Amine-Containing Particles in the East China Sea".Journal of Geophysical Research: Atmospheres 125.18(2020).