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Abstract
GIS Tools for Integrated Ecological Risk Assessment
Track: Environment Management
Author(s): Tracy McLane, Sadika Baladi
An automated system for integrated ecological risk assessment (ERA) was developed at the Savannah River Site, consisting of the Arcview GIS software, a relational Microsoft Access database, and customized ERA GIS tools. The tools allow users to model risk to ecological receptors for each subunit and/or operable unit. The database links unit-specific media concentrations, receptor parameters, environmental screening values (ESVs), unit-specific background media concentrations, bioaccumulation/bioconcentration values, and toxicity reference values (TRVs). The GIS tools calculate exposure doses (EDs), hazard quotients (HQs), as well as evaluate the lines of evidence criteria needed for uncertainty discussions of the contaminants of potential concern.
Tracy McLane
Savannah River Site
Environmental & Geographic Information Systems (EGIS)
Building 730-2B-1095
Savannah River Site
Aiken , SC 29808
USA
Phone: 803-952-6953
Fax: 803-952-6849
E-mail: tracy.mclane@srs.gov
Sadika Baladi
Savannah River Site
Site Geotechnical Services
Building 730-2B-2114
Savannah River Site
Aiken 29808
USA
Phone: 803-952-6697
Fax: 803-952-6628
E-mail: sadika.baladi@srs.gov