We’ve made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Exposure Assessment Models

Bioaccumulation and Aquatic System Simulator (BASS) - Download Page

Specifications
Current Version: 2.2
Release Date: March, 2008
Development Status: Initial Public Release
Development Information: Release Notes - changes and known deficiencies
Operating System: BASS Model: DOS and Windows 95/98/NT/2K/XP, BASS GUI: Windows NT/2K/XP
Development Language: FORTRAN 95
Text Files
File Name File Description
README.TXT Important installation and usage information.
Download Files
File Type /
Priority
File Name/Format/Size File Description
Install /
Required
Install_BASSv22_.exe /
Installer Executable /
89.3 MB
InstallShield executable file for version 2.2 of the BASS model that includes model executables, project data files, BASS model source code, GUI software, plotting software (Output Analyzer) and documentation. (For Windows NT/2K/XP)
Document /
Optional
User's Manual   Bioaccumulation and Aquatic System Simulator (BASS) User's Manual Version 2.2  
Install /
Optional
Install_BASS_v22_ModelOnly.exe /
Self-extracting Zip /
31.9 MB
The BASS v2.2 model, project, source code, data files and documentation. Does not include the GUI software. (For all DOS/Windows systems)
Install /
Optional
BASS_GUI_SourceCode.exe /
Self-extracting Zip /
32.7 MB
C# and VB6 source code archive for the BASS GUI and Output Analyzer