DOI: 10.1016/j.atmosenv.2017.11.044
Scopus记录号: 2-s2.0-85036559048
论文题名: Guided episodic sampling for capturing and characterizing industrial plumes
作者: Ou-Yang C ; -F ; , Liao W ; -C ; , Chang C ; -C ; , Hsieh H ; -C ; , Wang J ; -L
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2018
卷: 174 起始页码: 188
结束页码: 193
语种: 英语
英文关键词: Hydrogen sulfide
; Trigger sampling
; Volatile organic compounds (VOCs)
Scopus关键词: Chromatography
; Drug products
; Gas chromatography
; Industrial emissions
; Ionization of gases
; Mass spectrometry
; Organic compounds
; Paraffins
; Principal component analysis
; Sulfur compounds
; Sulfur determination
; Volatile organic compounds
; Chemical compositions
; Field experiment
; Highly-correlated
; Industrial plumes
; Ionization detection
; Measurement techniques
; Principle component analysis
; Sampling technique
; Hydrogen sulfide
; alkene derivative
; hydrogen sulfide
; volatile organic compound
; alkane
; chemical composition
; concentration (composition)
; detection method
; hydrogen sulfide
; industrial emission
; instrumentation
; mass spectrometry
; plume
; principal component analysis
; quantitative analysis
; sampling
; volatile organic compound
; Article
; chemical composition
; concentration (parameters)
; ionization
; mass fragmentography
; plume
; principal component analysis
; priority journal
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: An integrated sampling technique, dubbed trigger sampling, was developed to capture characteristic industrial emissions or plumes. In the field experiment, a hydrogen sulfide (H2S) analyzer was used as the triggering instrument at the boundary of a refinery plant due to frequent complaints of foul smell from local residents. Ten episodic samples were captured when the H2S level surpassed the prescribed trigger level of 8.5 ppbv over a three-day period. Three non-episodic (blank) samples and 23 road-side samples were also collected for comparison. All the 36 flask samples were analyzed by gas chromatography–mass spectrometry/flame ionization detection (GC–MS/FID) for 108 volatile organic compounds (VOCs). The total VOC abundance of the event samples was exceedingly higher than the non-episodic samples by over 80 times in the extreme case. Alkanes were found to be the dominant constituents in the event samples, amounting to over 90% of the total VOC concentrations vs. only 30–40% for the blank and metropolitan samples. In addition, light alkanes in the event samples were highly correlated with the trigger species H2S (R2 = 0.82), implying their common origin. The matrix of chemical composition vs. sample types permitted easy visualization of the dominance of light alkanes for the event samples compared to other types of samples. Principle component analysis (PCA) identified two major contributors to cover 93% of the total variance arising from the 36 samples, further quantifying the distinction of the triggered episodic samples from the contrast samples. The proposed trigger sampling is a coupling of fast-and-slow measurement techniques. In this example, the fast-response H2S analyzer served to “guide” sampling to capture industrial plumes which were then characterized by a relatively slow method of GC–MS/FID for detailed chemical composition representative of the prominent sources. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/83064
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric Sciences, National Central University, Taoyuan, Taiwan; Department of Chemistry, National Central University, Taoyuan, Taiwan; Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan
Recommended Citation:
Ou-Yang C,-F,, Liao W,et al. Guided episodic sampling for capturing and characterizing industrial plumes[J]. Atmospheric Environment,2018-01-01,174