Diagnosis of air quality through observation and modeling of volatile organic compounds (VOCs) as pollution tracers

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Title:	Diagnosis of air quality through observation and modeling of volatile organic compounds (VOCs) as pollution tracers
Authors:	林能暉;Liu, Wen-Tzu;Hsieh, Hsin-Cheng;Chen, Sheng-Po;Chang, Julius S.;Lin, Neng-Huei;Chang, Chih-Chung;Wang, Jia-Lin
Contributors:	地球科學學院大氣科學學系
Keywords:	air;air quality;Analysis methods;Applied sciences;atmospheric chemistry;Atmospheric pollution;CFC;chlorofluorocarbons;emissions;Exact sciences and technology;meteorology;PAMS-AQM;pollutants;Pollution;toluene;tracer techniques;traffic;VOC;volatile organic compounds
Date:	2012-08-01
Issue Date:	2026-04-21 13:36:23 (UTC+8)
Publisher:	Elsevier Ltd.;Kidlington: Elsevier Ltd
Abstract:	摘要： This study used selected ambient volatile organic compounds (VOCs) as pollution tracers to study the effects of meteorology on air quality. A remote coastal site was chosen as a receptor to monitor pollutants transported upwind from urban traffic and industrial sources. Large concentration variability in VOC concentrations was observed at the coastal site due to rapid changes in meteorology, which caused periodic land-sea exchange of air masses. To assure the quality of the on-line measurements, uniform concentrations of chlorofluorocarbon-113 (CFC-113) were exploited as an internal check of the instrument’s stability and the resulting data quality. A VOC speciated air quality model was employed to simulate both temporal and spatial distributions of VOC plumes. The model successfully captured the general features of the variations of toluene as a pollution tracer, which suggests that emissions and meteorology were reasonably well simulated in the model. Through validation by observation, the model can display both the temporal and spatial distribution of air pollutants in a dynamic manner. Thus, a more insightful understanding of how local air quality is affected by meteorology can be obtained. ► This study used VOC as pollution tracers. ► Concentration of CFC-113 was exploited as an internal check. ► A VOC model simulate temporal and spatial distributions of VOC plumes. ► The model can display the temporal and spatial distribution of air pollutants. 出版者： Kidlington: Elsevier Ltd 出版日期： 2012-08-01 出處： Atmospheric environment (1994), 2012-08, Vol.55, p.56-63 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2012 Elsevier Ltd 版權： 2014 INIST-CNRS 識別號： ISSN: 1352-2310 識別號： EISSN: 1873-2844 識別號： DOI: 10.1016/j.atmosenv.2012.03.017
Appears in Collections:	[Department of Atmospheric Sciences] journal & Dissertation

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