The Single Source (CRSTER) Model is a steady-state, Gaussian plume dispersion model designed for point-source applications. It calculates pollutant concentrations for each hour of a year, at 180 receptor sites on a radial grid. The hourly concentrations are averaged to obtain concentration estimates for time increments of specified length, such as 3-hour, 8-hour, 24-hour, and annual. The model contains the concentration equations, the Pasquill-Gifford dispersion coefficients, and the Pasquill stability classes, as given by Turner. Plume rise is calculated according to Briggs. No depletion of the pollutant is considered. Technical details of the programming are presented with complete descriptions of data acquirements and output. Flow diagrams and source program listings, including subprograms, are given as well as input data forms. Three papers on application, sensitivity and validation of the model are included as appendices.

Issued July 1977. Includes bibliographical references.