Section I provides extensive information about the highway vehicle emission factor model, currently MOBILE5, and includes numerous tables of both values used in the model and "look-up tables" of emission factors produced by the model. "Compilation of Air Pollutant Emission Factors, Volume II: Mobile Sources" (commonly referred to as "AP-42") has two sections, I - Highway Vehicles and II - Nonroad Mobile Sources. Output consists of concentration contour plots, concentration at a specified location, and maximum concentration at a given elevation and time.ĪP-42: Compilation of Air Pollutant Emission Factors (Mobile Sources)īy US Environmental Protection Agency, Office of Mobile Sources. A Gaussian dispersion model that will handle continuous or instantaneous liquid or gas elevated or surface releases from point or area sources. A steady-state plume model that incorporates air dispersion based on planetary boundary layer turbulence structure and scaling concepts, including treatment of both surface and elevated sources, and both simple and complex terrain.īy US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). This file would contain elevation and hill-height scaling factors for each receptor in the air dispersion study.īy US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS).
AERMAP processes commercially available Digital Elevation Data and creates a file suitable for use within an AERMOD control file. Release scenarios include continuous and instantaneous, area and point, pressurized and unpressurized, and liquid/vapor/two-phased options.īy US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). Air Force Dispersion Assessment Model (ADAM) is a modified box and Gaussian dispersion model which incorporates thermodynamics, chemistry, heat transfer, aerosol loading, and dense gas effects.
Permissions page if you haven't already done so.īy US Environmental Protection Agency, Office of Air Quality Planning and Standards (OAQPS). Before you access any software or apps, please read our disclaimer and Is a list of freeware that provides tools for modeling the fate and distribution of contaminants in the atmosphere.
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