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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; Wang, Zifa; Tong, Haijie; Su, Hang; Cheng, Yafang; Kawamura, Kimitaka; Jiang, Guibin; Liu, Cong-Qiang; Fu, Pingqing
2020-06-10
Source PublicationATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
Volume20Issue:11Pages:6803-6820
AbstractFirework (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.
Department环境化学与生态毒理学国家重点实验室
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/44738
Collection环境化学与生态毒理学国家重点实验室
Recommended Citation
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.
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