气候变化领域集成服务门户(CCPortal): Comprehensive characterization of particulate intermediate-volatility and semi-volatile organic compounds (I/SVOCs) from heavy-duty diesel vehicles using two-dimensional gas chromatography time-of-flight mass spectrometry

CCPortal

DOI	10.5194/acp-22-13935-2022
	Comprehensive characterization of particulate intermediate-volatility and semi-volatile organic compounds (I/SVOCs) from heavy-duty diesel vehicles using two-dimensional gas chromatography time-of-flight mass spectrometry
	He, Xiao; Zheng, Xuan; Zhang, Shaojun; Wang, Xuan; Chen, Ting; Zhang, Xiao; Huang, Guanghan; Cao, Yihuan; He, Liqiang; Cao, Xubing; Cheng, Yuan; Wang, Shuxiao; Wu, Ye
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	13935
结束页码	13947
卷号	22 期号:21 页码:13
英文摘要	Tailpipe emissions from three heavy-duty diesel vehicles (HDDVs), complying with varying emission standards and installed with diverse aftertreatment technologies, are collected at a certified chassis dynamometer laboratory. The HDDV-emitted intermediate-volatility and semi-volatile organic compound (I/SVOC) emission and the gas-particle partitioning of the I/SVOCs are investigated. Over 4000 compounds are identified and grouped into 21 categories. The dominant compound groups of particulate I/SVOCs are alkanes and phenolic compounds. For HDDVs without aftertreatment devices, i.e., diesel oxidation catalysts (DOCs) and diesel particulate filters (DPFs), the emitted I/SVOCs partition dramatically into the gas phase (accounting for similar to 93% of the total I/SVOC mass), with a few exceptions: hopane, four-ring polycyclic aromatic hydrocarbons (PAH(4rings)), and five-ring polycyclic aromatic hydrocarbons (PAH(5rings)). For HDDVs with DPFs and DOCs, the particulate fractions are reduced to a negligible level (i.e., less than 2 %). Nevertheless, 50% of the total two-ring PAH mass is detected in the particle phase, which is much higher than the high-molecular-weight PAHs, arising from the positive sampling artifact of quartz filter absorbing organic vapors. The positive sampling artifact of quartz filter absorbing organic vapors is clearly observed, and uncertainties are discussed and quantified. Particulate I/SVOCs at low-speed, middle-speed, and high-speed phases are collected and analyzed separately. The emission factor (EF) distribution of the speciated organic aerosol (OA) on a two-dimensional volatility basis set (2D-VBS) space reveals that the fractions of OA with oxygen to carbon (O : C) ratios > 0.3 (0.4, 0.5) are 18.2% (11.5 %, 9.5 %), 23% (15.4 %, 13.6 %), and 29.1% (20.6 %, 19.1 %) at the low-speed, middle-speed, and high-speed stages. These results help to resolve complex organic mixtures and trace the evolution of OA.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000877089700001
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/273067
作者单位	Shenzhen University; Tsinghua University; City University of Hong Kong; Harbin Institute of Technology
推荐引用方式 GB/T 7714	He, Xiao,Zheng, Xuan,Zhang, Shaojun,et al. Comprehensive characterization of particulate intermediate-volatility and semi-volatile organic compounds (I/SVOCs) from heavy-duty diesel vehicles using two-dimensional gas chromatography time-of-flight mass spectrometry[J],2022,22(21):13.
APA	He, Xiao.,Zheng, Xuan.,Zhang, Shaojun.,Wang, Xuan.,Chen, Ting.,...&Wu, Ye.(2022).Comprehensive characterization of particulate intermediate-volatility and semi-volatile organic compounds (I/SVOCs) from heavy-duty diesel vehicles using two-dimensional gas chromatography time-of-flight mass spectrometry.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(21),13.
MLA	He, Xiao,et al."Comprehensive characterization of particulate intermediate-volatility and semi-volatile organic compounds (I/SVOCs) from heavy-duty diesel vehicles using two-dimensional gas chromatography time-of-flight mass spectrometry".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.21(2022):13.