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	Characteristics, source apportionment and reactivity of ambient volatile organic compounds at Dinghu Mountain in Guangdong Province, China
	Wu, Fangkun1,2,3; Yu, Ye1; Sun, Jie2; Zhang, Junke2; Wang, Jian2; Tang, Guiqian2; Wang, Yuesi2
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2016-04-01
卷号	548页码:347-359
关键词	VOCs Source apportionment Positive matrix factorization receptor model OH radical loss rate Ozone formation potential
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2015.11.069
通讯作者	Tang, Guiqian(tgq@dq.cern.ac.cn)
英文摘要	Volatile organic compounds (VOCs) play a very important role in the formation of ozone and secondary organic aerosols. The concentrations, compositions, and variability of VOCs were measured from2005 to 2008 at Dinghu Mountain Forest Ecosystem Research Station, a remote station in Southeast China. Weekly samples were collected in the Dinghu Mountain area and were analysed via gas chromatography-mass spectrometry. The results revealed that the total VOC concentrations decreased continuously and that the dominant VOC components were alkanes (43%) and aromatics (33%), followed by halo-hydrocarbons (12%) and alkenes (12%). The general trend of seasonal variation indicated higher concentrations in spring and lower concentrations in summer. The positive matrix factorization model was used to identify the sources of the VOCs. Seven sources were resolved by the PMF model: (1) vehicular emissions, which contributed 25% of the total VOC concentration; (2) industrial sources and regional transportation, contributing 17%; (3) paint solvent use, contributing 17%; (4) fuel evaporation, contributing 13%; (5) stationary combustion sources, contributing 12%; (6) biogenic emissions, contributing 10%; and aged VOCs, contributing only 6%. The HYSPLIT model was used to analyse the effect of pollutant transport, and the results indicated that the transport of pollutants from cities cannot be ignored. Finally, the OH radical loss rates and ozone formation potentials (OFPs) were calculated, and the results indicated isoprene to have the highest OH radical loss rate and toluene to be the largest contributor to the OFP at the Dinghu Mountain site. (C) 2015 Elsevier B.V. All rights reserved.
收录类别	SCI
WOS关键词	PEARL RIVER-DELTA ; POSITIVE MATRIX FACTORIZATION ; COMPOUNDS VOCS ; HONG-KONG ; NONMETHANE HYDROCARBONS ; DIURNAL-VARIATIONS ; OZONE FORMATION ; SOUTHERN CHINA ; AIR-POLLUTANTS ; MIXING RATIOS
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000370246000036
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557402
专题	寒区旱区环境与工程研究所
通讯作者	Tang, Guiqian
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Fangkun,Yu, Ye,Sun, Jie,et al. Characteristics, source apportionment and reactivity of ambient volatile organic compounds at Dinghu Mountain in Guangdong Province, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,548:347-359.
APA	Wu, Fangkun.,Yu, Ye.,Sun, Jie.,Zhang, Junke.,Wang, Jian.,...&Wang, Yuesi.(2016).Characteristics, source apportionment and reactivity of ambient volatile organic compounds at Dinghu Mountain in Guangdong Province, China.SCIENCE OF THE TOTAL ENVIRONMENT,548,347-359.
MLA	Wu, Fangkun,et al."Characteristics, source apportionment and reactivity of ambient volatile organic compounds at Dinghu Mountain in Guangdong Province, China".SCIENCE OF THE TOTAL ENVIRONMENT 548(2016):347-359.

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