An objective methodology that uses aerometric data and a physically based air quality simulation model was proposed in a previous report for the optimal siting of air pollutant monitoring stations in urban areas. This report describes the continuation of that work--the application of the proposed methodology to the urban Las Vegas area. The first part of this report contains an examination of the validity of the Atmospheric Pollution Simulation Model, a key component of the proposed methodology. It also describes an intensive field measurement program conducted to provide the necessary data base. The second part describes the selection of meteorological scenarios associated with high pollution potential in the Las Vegas Valley and presents the results of the application of the siting methodology. One of the principal features of this methodology is the concept of a Figure of Merit for general air quality monitoring. The Figure of Merit represents an average pollutant concentration at each grid point as weighted by the frequency of occurrence of meteorological scenarios.

U.S. Environment Protection Agency Contract No. Contract Number: 68-03-2399. "September 1978." "Other authors include: Joseph V. Behar, Leslie M. Dunn, Pong N. Lem, Ann M. Pitchford, Nancy T. Fisher (Environmental Monitoring and Support Laboratory, Las Vegas, Nevada) and Mei-Kao Liu, Terry N. Jerskey, James P. Meyer, Jody Ames and Gary Lundberg (Systems Applications, Incorporated, San Rafael, California). Includes bibliographical references (pages 51-53).