气候变化领域集成服务门户(CCPortal): Mapping the geospatial distribution of atmospheric BTEX compounds using portable mass spectrometry and adaptive whole air sampling

CCPortal

DOI	10.1016/j.apr.2019.12.003
	Mapping the geospatial distribution of atmospheric BTEX compounds using portable mass spectrometry and adaptive whole air sampling
	Davey N.G.; Bell R.J.; Gill C.G.; Krogh E.T.
发表日期	2020
ISSN	13091042
卷号	11 期号:3
英文摘要	Atmospheric environmental monitoring with mobile laboratories is becoming more common as instrumentation evolves and the benefits of taking the lab-to-sample are realized. One of the benefits of this approach is the ability to screen a geographic area for compounds of interest and to use ‘real-time’ data to inform adaptive sampling. We report on the use of a membrane introduction mass spectrometer (MIMS) for continuous monitoring of atmospheric volatile organic compounds (VOCs) associated with hydrocarbon upgrading and refining facilities in northern Alberta, Canada. Field campaigns involved continuous ambient-air sampling from a moving vehicle (collected at ~ 1 Hz). Real-time MIMS data were used to monitor chemical concentrations of benzene, toluene, and ethylbenzene/xylenes (BTEX) and to prompt collection whole air sample (WAS) canisters for laboratory-based, trace-level VOC speciation and quantitation. The MIMS data showed a high degree of spatiotemporal variability, which allowed for near real-time feedback to guide otherwise subjective or random collection of whole air samples. Laboratory based comparisons using lab constructed air samples showed the percent difference in quantitation between MIMS and WAS to be within 20% across targeted analytes in the low ppbv concentration range. © 2020 Turkish National Committee for Air Pollution Research and Control
英文关键词	Adaptive sampling; Atmospheric pollution; Chemical mapping; Membrane introduction mass spectrometry; Non-methane hydrocarbons
语种	英语
来源期刊	Atmospheric Pollution Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120569
作者单位	Applied Environmental Research Laboratories (AERL), Department of Chemistry, Vancouver Island University, 900 Fifth St., Nanaimo, B.C., Canada; Beaver Creek Analytical, 707 W Lucerne Dr, Lafayette, CO 80026, United States; University of Victoria, Department of Chemistry, STN CSC, Victoria, B.C. P.O. Box 1700, Canada; Chemistry Department, Simon Fraser University, Burnaby, B.C., Canada; Department of Environmental and Occupational Health Sciences, University of Washington, WA, United States
推荐引用方式 GB/T 7714	Davey N.G.,Bell R.J.,Gill C.G.,et al. Mapping the geospatial distribution of atmospheric BTEX compounds using portable mass spectrometry and adaptive whole air sampling[J],2020,11(3).
APA	Davey N.G.,Bell R.J.,Gill C.G.,&Krogh E.T..(2020).Mapping the geospatial distribution of atmospheric BTEX compounds using portable mass spectrometry and adaptive whole air sampling.Atmospheric Pollution Research,11(3).
MLA	Davey N.G.,et al."Mapping the geospatial distribution of atmospheric BTEX compounds using portable mass spectrometry and adaptive whole air sampling".Atmospheric Pollution Research 11.3(2020).