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Model Report

Tool for the Reduction and Assessment of Chemical and other Environmental Impacts

Last Revision Date: 11/16/2009 View as PDF
General Information Back to Top
Model Abbreviated Name:

TRACI
Model Extended Name:

Tool for the Reduction and Assessment of Chemical and other Environmental Impacts
Model Overview/Abstract:
TRACI, the Tool for the Reduction and Assessment of Chemical and other environmental Impacts, has been developed by the US Environmental Protection Agency’s National Risk Management Research Laboratory to facilitate the characterization of stressors that have potential effects, including ozone depletion, global warming, acidification, eutrophication, tropospheric ozone (smog) formation, human health criteria-related effects, and fossil fuel depletion effects. TRACI can be used for sustainability metrics, life cycle assessment, industrial ecology, pollution prevention, or process design.

Keywords: Sustainability metrics, life cycle impact assessment, life cycle assessment, industrial ecology, pollution prevention, impact assessment, characterization
Model Technical Contact Information:
Jane Bare
U.S. EPA
Office of Research and Development (ORD)
National Risk Management Research Laboratory (NRMRL)
Sustainable Technology Division (STD
U.S. EPA/NRMRL (Mail Code: MS-466)
(513) 569-7513
bare.jane@epa.gov
Model Homepage: http://www.epa.gov/nrmrl/std/sab/traci/
Plans for further model development: A new version should be released in 2008 which updates the underlying methodologies and expands the stressor database.

User Information Back to Top
Technical Requirements
Computer Hardware
PC compatible
Compatible Operating Systems
Windows 95, 98, NT, or later
Other Software Required to Run the Model
Microsoft EXCEL
Download Information
The model is available through its homepage.
Using the Model
Basic Model Inputs
Screening model with moderate input requirements. User inputs the emissions from a facility or other scenario for comparison.

Requires user to have inventory of emissions to input.

Basic Model Outputs
Comparison between two or more scenarios. Results will be recorded in several categories.

Provides characterized results for all of the above mentioned categories.

User Support
User's Guide Available?
User needs only moderate level of technical education and/or modeling experience.

Documentation is available on the homepage.

Other User Documents
Bare, J.C., G.A. Norris, D.W. Pennington, and T. McKone. (2003). “TRACI – The Tool for the Reduction and Assessment of Chemical and Other Environmental Impacts.” Journal of Industrial Ecology, 6, 3.
User Qualifications
EXCEL experience beneficial

Model Science Back to Top
Problem Identification
Allows characterization of stressors, including emissions which may have impacts in the above listed categories as well as fossil fuel depletion.
Summary of Model Structure and Methods
The model has many underlying models developed for use within the calculations.

The model uses fixed units (U.S.).

The model has many underlying models developed for use within the calculations.

Model Evaluation
Code verification, sensitivity analysis, and qualitative & quantitative uncertainty analysis have been performed.

The model has been internally and externally peer reviewed.


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