NMHCs in a heavily polluted city in Northern China: Characteristics, effects on SOA potential, and source apportionment

doi:10.3319/TAO.2020.08.30.01

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	NMHCs in a heavily polluted city in Northern China: Characteristics, effects on SOA potential, and source apportionment
	Qi, Mengyao 1,2; Wang, Litao 1,2; Wang, Qing 1,2; Lu, Xiaohan 1,2; Wei, Wei 3; Wang, Yu 1,2; Liu, Zhentong 1,2; Tan, Jingyao 1,2; Liu, Yingying 1,2; Xu, Ruiguang 1,2,4
刊名	TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
	2021-02-01
卷号	32 期号:1 页码:69-87
关键词	NMHCs SOA potential Source apportionment Handan Haze
ISSN号	1017-0839
DOI	10.3319/TAO.2020.08.30.01
通讯作者	Wang, Litao(wanglitao@hebeu.edu.cn)
英文摘要	Non-methane hydrocarbons (NMHCs) plays an important role in haze events. This study focused on NMHCs characteristics, effects on secondary organic aerosol (SOA) and source apportionment in Handan in heavily polluted seasons, i.e., autumn (October 2017) and winter (January 2018) and their differences in non-haze and haze days. An online instrument (AMA GC5000) was used to monitor NMHCs in Handan firstly at the campus of Hebei University of Engineering. It was found that the average NMHCs concentrations were 41.45 and 57.56 ppb in autumn and winter, respectively, which were higher than most investigated domestic and foreign megacities to the best of our knowledge. Alkanes was the largest contributor to NMHCs (45.4%), and followed by alkenes, aromatics, and acetylene. In haze days, the concentrations of NMHCs and four categories increased far more in winter than those in autumn compared to non-haze days. The total SOA potential (SOAP) in winter (3364 mu g m(-3)) was higher than that in autumn (2804 mu g m(-3)). The total SOAP was close in haze and non-haze days in autumn, while it was much higher in haze days in winter. Regardless of the variations of different periods, aromatics contributed most to the total SOAP, with contributions of 87 - 95%, where toluene was the most contributed species. Combined the results of diagnostic ratios with positive matrix factorization (PMF) model, NMHCs of Handan was mainly contributed by traffic emissions and combustion events. Vehicle related (from 23.2 to 30.1%) and industrial related source (from 13.7 to 26.7%) may be major contributors to the haze pollution in autumn and winter, respectively.
资助项目	National Natural Science Foundation of China[41475131] ; National Natural Science Foundation of China[41703088] ; National Key Program of Cause and Control of Severe Air Pollution[DQGG-05-09] ; National Key Program of Cause and Control of Severe Air Pollution[DQGG-01-07] ; National Key Program of Cause and Control of Severe Air Pollution[DQGG-02-09] ; National Key Program of Cause and Control of Severe Air Pollution[DQGG-03-04] ; Hebei Science Fund of Distinguished Young Scholars[D2017402086] ; Key Projects of Research and Development of Hebei Province[19273707D] ; Program for the Outstanding Young Scholars of Hebei Province ; Hebei Support Program of Hundred Outstanding Innovative Talents from Universities[SLRC2017025] ; Hebei Cultivating Project of Talent Development[A2016002022]
WOS关键词	VOLATILE ORGANIC-COMPOUNDS ; YANGTZE-RIVER DELTA ; COMPOUNDS VOCS ; INDUSTRIAL-AREA ; OZONE FORMATION ; HAZE EVENTS ; AROMATIC-HYDROCARBONS ; REGIONAL TRANSPORT ; VEHICULAR EMISSION ; OBSERVATIONAL DATA
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences ; Oceanography
语种	英语
出版者	CHINESE GEOSCIENCE UNION
WOS记录号	WOS:000647821000005
资助机构	National Natural Science Foundation of China ; National Key Program of Cause and Control of Severe Air Pollution ; Hebei Science Fund of Distinguished Young Scholars ; Key Projects of Research and Development of Hebei Province ; Program for the Outstanding Young Scholars of Hebei Province ; Hebei Support Program of Hundred Outstanding Innovative Talents from Universities ; Hebei Cultivating Project of Talent Development
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16447]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Wang, Litao
作者单位	1.Hebei Univ Engn, Sch Energy & Environm Engn, Dept Environm Engn, Handan, Peoples R China 2.Hebei Key Lab Air Pollut Cause & Impact Preparato, Handan, Peoples R China 3.Beijing Univ Technol, Dept Environm Sci & Engn, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, Xian, Peoples R China
推荐引用方式 GB/T 7714	Qi, Mengyao,Wang, Litao,Wang, Qing,et al. NMHCs in a heavily polluted city in Northern China: Characteristics, effects on SOA potential, and source apportionment[J]. TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES,2021,32(1):69-87.
APA	Qi, Mengyao.,Wang, Litao.,Wang, Qing.,Lu, Xiaohan.,Wei, Wei.,...&Xu, Ruiguang.(2021).NMHCs in a heavily polluted city in Northern China: Characteristics, effects on SOA potential, and source apportionment.TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES,32(1),69-87.
MLA	Qi, Mengyao,et al."NMHCs in a heavily polluted city in Northern China: Characteristics, effects on SOA potential, and source apportionment".TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES 32.1(2021):69-87.