Author(s)

M.S. Dortch & J.A. Gerald

Abstract

The Army Risk Assessment Modeling System (ARAMS) was first released in June 2002. Since that time, there have been two additional releases that have substantially advanced the state of ARAMS. The primary addition has been incorporation of the Terrestrial Wildlife Exposure Model (TWEM). TWEM computes receptor dose based upon ingestion of contaminated soil, sediment, water, and food. A life history database of species profiles and food preferences and a database of bioaccumulation factors are used to obtain food concentrations and ingested doses of compounds. Although TWEM is not spatially explicit, its strength is in these two databases, which will be continually updated. The Spatially Explicit Exposure Model (SEEM) has also been developed and is being added to ARAMS in 2004 to allow consideration of spatial aspects, such as home range, habitat

Keywords