气候变化领域集成服务门户(CCPortal): Measurement report: Ambient volatile organic compound (VOC) pollution in urban Beijing: characteristics, sources, and implications for pollution control

CCPortal

DOI	10.5194/acp-22-11931-2022
	Measurement report: Ambient volatile organic compound (VOC) pollution in urban Beijing: characteristics, sources, and implications for pollution control
	Cui, Lulu; Wu, Di; Wang, Shuxiao; Xu, Qingcheng; Hu, Ruolan; Hao, Jiming
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	11931
结束页码	11944
卷号	22 期号:18 页码:14
英文摘要	The increasing ozone (O-3) pollution and high fraction of secondary organic aerosols (SOA) in fine particle mass has highlighted the importance of volatile organic compounds (VOCs) in air pollution control. In this work, four intensive field measurements of VOCs during winter of 2018 (from 1 December 2018 to 17 January 2019), spring (15 April to 27 May), summer (17 June to 13 July), and autumn (22 September to 27 November) of 2019 were conducted at an urban site in Beijing to characterize VOC sources and their contributions to air pollution. The total mixing ratio of the 95 quantified VOCs (TVOC) observed in this study ranged from 5.5118.7 ppbv with the mean value of 34.9 ppbv. Alkanes, OVOCs, and halocarbons were the dominant chemical groups, accounting for 75 %-81% of the TVOC across the sampling months. The molar ratios of VOCs to NOx indicated that O-3 formation was limited by VOCs during the whole sampling period. Positive matrix factorization (PMF) analysis showed that diesel vehicle exhaust, gasoline vehicle exhaust, and industrial emissions were the main VOC sources during both the O-3-polluted and PM2.5-polluted months. On the basis of O-3 formation impact, VOCs from fuel evaporation and diesel exhaust, particularly toluene, xylenes, trans-2-butene, acrolein, methyl methacrylate, vinyl acetate, 1-butene, and 1-hexene, were the main contributors, illustrating the necessity of conducting emission controls on these pollution sources and species to alleviate O-3 pollution. Instead, VOCs from diesel exhaust as well as coal and biomass combustion were found to be the dominant contributors to secondary organic aerosol formation potential (SOAFP), particularly the VOC species of toluene, 1-hexene, xylenes, ethylbenzene, and styrene, and top priority should be given to these for the alleviation of haze pollution. This study provides insights for the government to formulate effective VOC control measures for air pollution in Beijing.
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:000853793300001
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/273674
作者单位	Tsinghua University
推荐引用方式 GB/T 7714	Cui, Lulu,Wu, Di,Wang, Shuxiao,et al. Measurement report: Ambient volatile organic compound (VOC) pollution in urban Beijing: characteristics, sources, and implications for pollution control[J],2022,22(18):14.
APA	Cui, Lulu,Wu, Di,Wang, Shuxiao,Xu, Qingcheng,Hu, Ruolan,&Hao, Jiming.(2022).Measurement report: Ambient volatile organic compound (VOC) pollution in urban Beijing: characteristics, sources, and implications for pollution control.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(18),14.
MLA	Cui, Lulu,et al."Measurement report: Ambient volatile organic compound (VOC) pollution in urban Beijing: characteristics, sources, and implications for pollution control".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.18(2022):14.