Record Display for the EPA National Library Catalog
RECORD NUMBER: 3723 OF 4579
|OLS Field Name||OLS Field Data|
|Main Title||SHORTZ Air Diffusion Model (for Microcomputers).|
|CORP Author||Environmental Protection Agency, Washington, DC.|
|Additional Subjects||Data file ; Gaussian plume models ; Atmospheric diffusion ; Diffusion modeling ; Air pollution dispersion ; Transport properties ; Point sources ; Area sources ; Air pollution sources ; Urban areas ; Rural areas ; Emissions ; Stack gases ; Air pollutants ; Emission factors ; Ecological concentration ; Topography ; Complex terrain ; Diskettes ; SHORTZ computer model|
SHORTZ utilizes the steady state bivariate Gaussian plume formulation for both urban and rural areas in flat or complex terrain to calculate ground-level ambient air concentrations. The model can calculate 1-hour, 2-hour, 3-hour, etc., average concentrations due to emissions from stacks, buildings and area sources for up to 300 arbitrarily placed sources. The output consists of total concentration at each receptor due to emissions from each user-specified source or group of sources, including all sources. If the option for gravitational settling is invoked, analysis cannot be accomplished in complex terrain without violatiing mass continuity.