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Vizuete, W., Kim, B.-U., Jeffries, H., Kimura, Y., Allenc, D.T., Kioumourtzogloua, M.A., Bitona, L., Henderson, B. (2008) Modeling Ozone Formation from Industrial Emission Events in Houston, Texas. Atmospheric Environment, 42, 7641-7650.

has been cited by the following article:

• TITLE: Influence of Reactive Volatile Organic Compounds on Ozone Production in Houston-Galveston-Brazoria Area

  AUTHORS: Samarita Sarker, Raghava R. Kommalapati, Ziaul Huque

  KEYWORDS: Comprehensive Air Quality Model with Extensions (CAMx), Nitrogen Oxides (NOx) Ozone (O3), Volatile Organic Compound (VOC), Correlation of VOC with O3

  JOURNAL NAME: Journal of Environmental Protection, Vol.6 No.4, April 27, 2015

  ABSTRACT: Secondary pollutant ozone (O3) formation in a particular area is often influenced by various factors. Source of emissions is one of the factors. In south east Texas, Houston-Galveston-Brazoria (HGB) is a marginal non-attainment area for ozone (O3). A summer episode of May 28 to July 2, 2006 is simulated using Comprehensive Air Quality Model with extensions (CAMx). During this period O3 concentration in HGB often exceeds the National Ambient Air Quality Standards (NAAQS) 0.075 ppm of average 8 hour O3 concentration. HGB area has numerous point sources. Various studies found that some specific volatile organic compounds are very reactive in atmosphere. The objective of this study is to analyze the influence of volatile organic compounds present in point source emissions on the air quality of HGB area. For this purpose ozone sensitivity for HGB area is analyzed by the ratio of hydrogen peroxides (H2O2) to nitric acid (HNO3). HGB area is found NOx limited but reactive VOCs are found to be influential too. From (1-4 June, 2006) maximum O3 concentration was found on weekend, June 3. VOCs such as Acetaldehyde (ALD2), Formaldehyde (FORM) and Alkane (ETHA) showed good correlation with O3 concentrations on that day. In addition, Peroxyacetyl nitrate (PAN) formation was found correlated to higher ozone production. Criteria pollutant Sulfur dioxide (SO2) was found to influence the ALD2 and ETHA concentrations, and thus indirectly influenced O3 production.