Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry
	Xie, Qiaorong; Su, Sihui; Chen, Shuang; Xu, Yisheng; Cao, Dong; Chen, Jing; Ren, Lujie; Yue, Siyao; Zhao, Wanyu; Sun, Yele
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2020-06-10
卷号	20 期号:11 页码:6803-6820
ISSN号	1680-7316
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, O-3, and center dot 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.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44738]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Xie, Qiaorong,Su, Sihui,Chen, Shuang,et al. Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(11):6803-6820.
APA	Xie, Qiaorong.,Su, Sihui.,Chen, Shuang.,Xu, Yisheng.,Cao, Dong.,...&Fu, Pingqing.(2020).Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(11),6803-6820.
MLA	Xie, Qiaorong,et al."Molecular characterization of firework-related urban aerosols using Fourier transform ion cyclotron resonance mass spectrometry".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.11(2020):6803-6820.