title: The Plume Volume Molar Ratio Method for Determining NO2/NOxRatios in Modeling-Part II: Evaluation Studies.
abstract: A previous paper1discusses the methodology for a new method for deriving the nitrogen dioxide/nitrogen oxide (NO2/NOx) ratio in plumes that originally are composed mainly of (NOx). It is called the Plume Volume Molar Ratio Method (PVMRM). This paper documents its performance against six different data sets. These performance evaluations show that the PVMRM can realistically predict the NO2fraction at close-in receptors yet still provide conservative estimates so that the air quality standards can be protected.
authors.affiliation: a Air Quality Division , Oregon Department of Environmental Quality , Portland , Oregon , USA.
authors.forename: Patrick L
authors.initials: PL
authors.lastname: Hanrahan