The User's Network for Applied Modeling of Air Pollution (UNAMAP), Version 5 contains 31 air quality simulation models. These models input emission and meteorological data to calculate projected air pollutant concentrations. Some of the models are: APRAC Computes hourly averages of carbon monoxide for any urban location; CDM A dispersion model for long-term quasi-stable pollutant concentrations; CDMQC CDM altered to provide implementation of calibration and of averaging time transformations; CRSTER Estimates ground-level concentrations resulting from up to 19 collocated elevated stack emissions; HIWAY Computes the hourly concentrations of nonreactive pollutants downwind of roadways; RAM Short-term gaussian steady-state algorithm estimates concentrations of stable pollutants; TCM A steady-state gaussian plume model for determining long-term average pollutant concentrations of nonreactive pollutants; TEM8 A short term, steady-state gaussian plume model for determining short-term concentrations of non-reactive pollutants; VALLEY A steady state, univariate gaussian plume dispersion algorithm; APRAC3 Contains two modifications to APRAC; BLP A gaussian plume dispersion model associated with aluminum reduction plants; COMPLEX I A multiple point source code with terrain adjustment representing a sequential modeling bridge between Valley and COMPLEX II; ISCLT A steady state gaussian plume model which can be used to access pollutant concentrations from an industrial source complex; LONGZ Diseinged to calculate the long-term pollutant concentration produced at a large number of receptors by emissions from multiple stact, building and area sources; MESOPLUME A mesoscale plume segment model designed to calculate concentrations of SO2 and SO4 over large distances; MPTER A multiple point-source guassian model with optional terrain adjustments; PAL A short-term gaussian steady-state algorithm estimates concentrations of stable pollutants from point, area, and line sources; PTPLU A
point source dispersion gaussian screening model for estimating maximum surface concentrations for one-hour concentrations; ROADWAY A finite difference model which predicts pollutant concentration near a roadway; SHORTZ Designed to calculate the short-term pollutant concentration produced at a large number of receptors by emissions from multiple stack, building and area sources; PTDIS Estimates short-term concentrations directly downwind of a point source at distances specified by the user; PTMAX Performs an analysis of the maximum short-term concentrations from a single point source as a function of stability and wind speed; and PTMTP Estimates for a number of arbitrarily located receptor points at or above ground level, the concentrations from a number of point sources...Software Description: The system is written in FORTRAN for a UNIVAC 1100/83 computer using the 3N-R2C operating system. 69K6-character words are required to operate the least model of the system.