Abstract:
The new IGEMS is a modernization of OPPT's older Graphical Exposure Modeling
System and PCGEMS tools. IGEMS brings together in one system several EPA
environmental fate and transport models and some of the environmental data
needed to run them. IGEMS includes models and data for ambient air, surface
water, soil, and ground water, and makes the models much easier to use than
... their stand-alone counterparts. IGEMS will have graphics and Geographical
Information System (GIS) capabilities for displaying environmental modeling
results.
How Does IGEMS Work?
The new IGEMS will have interactive menus to guide the user in selecting
models, selecting and organizing data to be used as input to model runs,
executing model runs, and presenting model outputs. The menus will also provide
user help. The new system will be modular in design, so that EPA can easily add
other models to the system in the future. IGEMS will also have the capability
of retrieving some data from EPA Oracle databases, such as the TRIS data in the
EPA Envirofacts Data Warehouse. 
