气候变化领域集成服务门户(CCPortal): Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry

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DOI	10.5194/acp-20-6803-2020
	Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry
	Xie Q.; Xie Q.; Su S.; Chen S.; Xu Y.; Cao D.; Chen J.; Ren L.; Yue S.; Yue S.; Yue S.; Zhao W.; Zhao W.; Sun Y.; Wang Z.; Tong H.; Su H.; Cheng Y.; Kawamura K.; Jiang G.; Fu P.
发表日期	2020
ISSN	1680-7316
起始页码	6803
结束页码	6820
卷号	20 期号:11
英文摘要	Firework (FW) emission has strong impacts on air quality and public health. However, little is known about the molecular composition of FW-related airborne particulate matter (PM), especially the organic fraction. Here we describe the detailed molecular composition of Beijing PM collected before, during, and after a FW event in the evening of New Year's Eve in 2012. Subgroups of CHO, CHON, and CHOS were characterized using ultrahigh-resolution Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry. These subgroups comprise a substantial fraction of aromatic-like compounds with low O=C ratio and high degrees of unsaturation, some of which plausibly contributed to the formation of brown carbon in Beijing PM. Moreover, we found that the number concentration of sulfur-containing compounds, especially the organosulfates, increased dramatically during the FW event, whereas the number concentration of CHO and CHON doubled after the event, which was associated with multiple atmospheric aging processes including the multiphase redox chemistry driven by NOx, O3, and •OH. These findings highlight that FW emissions can lead to a sharp increase in high-molecular-weight compounds, particularly aromatic-like substances in urban particulate matter, which may affect the light absorption properties and adverse health effects of atmospheric aerosols. © 2020 Author(s). This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol; concentration (composition); Fourier transform; mass spectrometry; molecular analysis; particulate matter; urban atmosphere; Beijing [Beijing (ADS)]; Beijing [China]; China
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/247723
作者单位	State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin, 300072, China; State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Science, Chinese Academy of Sciences, Beijing, 100085, China; School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China; Max Planck Institute for Chemistry, Multiphase Chemistry Department, Hahn-Meitner-Weg 1, Mainz, 55128, Germany; Chubu Institute for Advanced Studies, Chubu University, Kasugai, 487-8501, Japan; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Xie Q.,Xie Q.,Su S.,et al. Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry[J],2020,20(11).
APA	Xie Q..,Xie Q..,Su S..,Chen S..,Xu Y..,...&Fu P..(2020).Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(11).
MLA	Xie Q.,et al."Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.11(2020).