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Model Report

LIFELINE SOFTWARE FOR CUMULATIVE AND AGGREGATE EXPOSURE ASSESSMENT VERS. 2.0

Last Revision Date: 08/25/2009 View as PDF
General Information Back to Top
Model Abbreviated Name:

LIFELINE 2.0
Model Extended Name:

LIFELINE SOFTWARE FOR CUMULATIVE AND AGGREGATE EXPOSURE ASSESSMENT VERS. 2.0
Model Overview/Abstract:
LifeLineTM Version 2.0 allows the user to investigate exposure to pesticide residues in diet, tapwater, and in residential environments; however, the model also can be used to assess exposure to any substance that occurs in food or tapwater. This includes contaminants that are naturally occurring, formed during processing, or added during processing and handling. LifeLineTM Version 2.0 is also the most flexible dietary software available for pesticide regulatory assessments. Version 2.0 can automatically import .RS7 residue files (with the associated .RDF files) created using DEEMTM. This includes files that are based 94-98 CSFII survey and the earlier 89-91 survey. Once imported, LifeLineTM uses the residue data to produce dietary exposure estimates using 94-98 CSFII and the USDA Food Commodity Intake Database (FCID). As a result, users can reassess their pesticide products using the FCID without reentering the data or purchasing expensive new software.
Keywords:
Model Technical Contact Information:
Paul S. Price, Director
The LifeLine Group, Inc.
129 Oakhurst Rd.
Cape Elizabeth, ME 04107

psprice@thelifelinegroup.org
Phone: 207-799-3406
Fax: 207-799-2529
Model Homepage: http://www.thelifelinegroup.org Exiting the EPA Site

User Information Back to Top
Technical Requirements
Computer Hardware
PC Pentium 3 200 mhz or higher
Compatible Operating Systems
Windows 98 or more recent version
Other Software Required to Run the Model
None -- Free standing program
Download Information
The LifelineTM software can be obtained from: www.thelifelinegroup.org
Using the Model
Basic Model Inputs
1) Levels of residues in food
2) Market share of pesticide product in agriculture and in the residential markets
3) Data on factors related to residential exposure (amount of pesticide applied, types of pest controlled, method of application, etc.)
4) Levels in water supplies
5) Information on exposure related behaviors (dermal transfer rates, hound to mouth events, breathing rates, clothing, etc.)
Basic Model Outputs
Estimates of short and long term average doses and associated risks. Risk are characterized using %RFD and MOE. Cancer risks are evaluated using potency factors.
User Support
User's Guide Available?
User Guide is available at www.thelifelinegroup.org

Model Science Back to Top
Summary of Model Structure and Methods
A Monte Carlo based simulation of longitudinal variation in exposure to multiple sources.

See technical manual at www.thelifelinegroup.org

Model Evaluation
Work in this area is ongoing see www.epa.gov/oscpmont/sap/#april


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