1. General Model Information
Name: Exposure Analysis Modeling System
Acronym: EXAMS
Main medium: terrestrial
Main subject: biogeochemistry, hydrology
Organization level: landscape, ecosystem
Type of model: ordinary differential equations
Main application: decision support/expert system, research
Keywords: water quality, chemicals, aquatic, ecosystems, exposure, fate, persistence, database
Contact:
Center for Exposure Assessment Modeling (CEAM)
U.S. Environmental Protection Agency
Environmental Research Laboratory
College Station Road
Athens, Georgia 30613
Phone: (404) 546-3123
Lawrence A. Burns, Ph. D.
Author(s):
Lawrence A. Burns, Ph. D. Research Ecologist
Environmental Research laboratory
U.S. Environmental protection Agency
Athens, Georgia 30613 USA
Abstract:
Exposure Analysis Modeling System is an interactive modeling system
that allows a user to specify and store the properties of chemicals and
ecosystems, modify either via simple commands, and conduct rapid evaluations
and error analyses of the probable aquatic fate of synthetic organic
chemicals. EXAMS combines chemical loadings, transport, and transformation
into a set of differential equations using the law of conservation of mass as
an accounting principle. It accounts for all the chemical mass entering and
leaving a system as the algebraic sum of external loadings, transport
processes that export the compound from the system, and transformation
processes within the system that convert the chemical to daughter products.
The program produces output tables and simple graphics describing chemical
exposure, fate, and persistence.
CEAM-Model-Information
II. Technical Information
II.1 Executables:
Operating System(s): (see section IV.) DOS
DOS/EXAMS-Version2.96(includes fortran source and documentation)
Europe: DOS/EXAMS-Version2.96(includes fortran source and documentation)
II.2 Source-code:
Programming Language(s): (see section IV.)
II.3 Manuals:
II.4 Data:
(see section IV.)
III. Mathematical Information
III.1 Mathematics
III.2 Quantities
III.2.1 Input
III.2.2 Output
IV. References
Games, L. M. (1982)Field Validation of Exposure Analysis Modeling System (EXAMS) in a FlowingStream In: Modeling the Fate of Chemicals in the Aquatic Environment, Ann ArborScience, Ann Arbor, Mi 1982:325-346
V. Further information in the World-Wide-Web
VI. Additional remarks
Last review of this document by: T. Gabele: 1. 08. 1997 -
Status of the document:
last modified by
Tobias Gabele Wed Aug 21 21:44:42 CEST 2002