Imaging VOC distribution in cities and tracing VOC emission sources with a novel mobile proton transfer reaction mass spectrometer

doi:10.1016/j.envpol.2020.114628

	Imaging VOC distribution in cities and tracing VOC emission sources with a novel mobile proton transfer reaction mass spectrometer
	Liang, Qu 1,2; Bao, Xun 1,2; Sun, Qin 1,2; Zhang, Qiangling 1,2; Zou, Xue 1; Huang, Chaoqun 1; Shen, Chengyin 1,3; Chu, Yannan 1
刊名	ENVIRONMENTAL POLLUTION
	2020-10-01
卷号	265
关键词	PTR-MS VOCs Real time Mobile mass spectrometer GIS
ISSN号	0269-7491
DOI	10.1016/j.envpol.2020.114628
通讯作者	Shen, Chengyin(chyshen@aiofm.ac.cn)
英文摘要	Volatile organic compounds (VOCs) are important precursors of ozone (O-3) and secondary organic aerosols (SOAs). Tracing VOC pollution sources is important for controlling VOC emissions and reducing O-3 and SOAs. We built a novel mobile proton transfer reaction mass spectrometry (M-PTR-MS) instrument to image the distribution of VOCs and trace their emission sources in cities and industrial parks. The M-PTR-MS is composed of a vibration-resistant proton transfer reaction mass spectrometry (PTR-MS) with a global positioning system receiver, modified box vehicle, and geographic information system (GIS) software. The PTR-MS, mounted on a vehicle, sends VOC data and vehicle position information to the GIS software. These data are used to image the space distribution of VOCs in real time while the vehicle platform is in motion and the VOC sources are precisely traced using the GIS. The spatial data resolution of the M-PTR-MS is typically 0.8 m. The limits of detection, sensitivity, and repeatability of the M-PTR-MS are 43.5 ppt, 347 counts ppb(-1), and 2.4% (RSD, n = 5), respectively. The intensity of reagent ions is stable over 8 h (RSD = 0.45%). Compared with commercial PTR-MS equipment, the M-PTR-MS demonstrated high consistency, with a correlation coefficient of 92.665%. Several field experiments were conducted in China using the M-PTR-MS. In one field experiment, the VOC distribution along three different routes was surveyed; the navigation monitoring lasted 1.8 h over a distance of 26.7 km at an average speed of 15 km h(-1). The VOC sources in an industrial park were identified by analyzing the components near different factories. The main species from a VOC source in an underground garage was related to paint. The M-PTR-MS instrument can be used by environmental protection agencies to trace VOC pollution sources in real time, and by researchers to survey VOC emissions in regions of concern. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Key R&D Program of China[2016YFC0200200] ; National Natural Science Foundation of China[21777163] ; National Natural Science Foundation of China[21876176] ; National Natural Science Foundation of China[21705152] ; Youth Innovation Promotion Association, CAS, China[2019432] ; Key Program of 13th Five Year Plan, CASHIPS, China[KP-2017-25] ; Functional Development Program of Instrument and Equipment in the Chinese Academy of Sciences, China[Y9BS0C1291]
WOS关键词	VOLATILE ORGANIC-COMPOUNDS ; PTR-MS ; FLUX MEASUREMENTS ; AIR ; DESORPTION ; POLLUTION ; CAMPAIGN ; SYSTEM ; BTEX ; TOF
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000564563800016
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS, China ; Key Program of 13th Five Year Plan, CASHIPS, China ; Functional Development Program of Instrument and Equipment in the Chinese Academy of Sciences, China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/102887]
专题	中国科学院合肥物质科学研究院
通讯作者	Shen, Chengyin
作者单位	1.Chinese Acad Sci, Ctr Med Phys & Technol, Hefei Inst Phys Sci, Anhui Prov Key Lab Med Phys & Technol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Hefei Canc Hosp, Dept Pharm, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Liang, Qu,Bao, Xun,Sun, Qin,et al. Imaging VOC distribution in cities and tracing VOC emission sources with a novel mobile proton transfer reaction mass spectrometer[J]. ENVIRONMENTAL POLLUTION,2020,265.
APA	Liang, Qu.,Bao, Xun.,Sun, Qin.,Zhang, Qiangling.,Zou, Xue.,...&Chu, Yannan.(2020).Imaging VOC distribution in cities and tracing VOC emission sources with a novel mobile proton transfer reaction mass spectrometer.ENVIRONMENTAL POLLUTION,265.
MLA	Liang, Qu,et al."Imaging VOC distribution in cities and tracing VOC emission sources with a novel mobile proton transfer reaction mass spectrometer".ENVIRONMENTAL POLLUTION 265(2020).