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Exposure Assessment Models

PRZM3 version 3.12.1

Several versions of the PRZM system are available on the EPA Center for Exposure Assessment Modeling (CEAM) Web site. Check the PRZM version index for a complete list of software releases available for download.

Development Status:
Current Version: 3.12.1
Release Date: August 2003
General Release
Development Information: Release Notes - changes and known deficiencies
Operating System: 32-bit MS-DOS
Development Language: Fortran
Intended Audience: Scientist/Engineer
Key Words: assessment, discharge, environmental effects, hydrology, land use management, metals, pesticides, surface water, test/analysis
Related Web Sites: PRZM Version Index
EXPRESS Software Page
Meteorological Data Page
Text Files (ASCII Format)
File Name File Description
ABSTRACT.TXT Summary of functions, theory, and applicability.
README.TXT Important installation and usage information.
Download Files
File Type /
File Name /
Format /
File Description
Install /
Install_ PRZM3121.EXE /
InstallShield Executable /
7.7 MB
Setup file for version 3.12.1 of the PRZM3 system including executable software, documentation in Adobe Acrobat format, and Fortran source code. See README.TXT for important installation instructions.

An Adobe Acrobat Reader is required to view PDF documents. The most recent version of the Adobe Acrobat Reader is available as a free download.