A review of GEOTOX for the EPA multi-media assessment project
GEOTOX is a set of programs used to calculate time-varying chemical concentrations in multiple environmental media (e.g., soil, ground water, etc.) and to estimate potential human exposures. The current version of GEOTOX performs two major tasks: (1) it predicts the transport and transformation of chemicals in a multimedia environment, and (2) it estimates human exposure. The chemical transport model uses landscape data and physicochemical properties to determine the distribution and concentration of chemicals among compartments such as air, water, and soil. Environmental concentrations are linked to human exposures and health effects using an exposure model that accounts for intake through inhalation, consumption of food and water, and dermal absorption. GEOTOX is intended for use in public health and environmental risk assessment and risk management -- particularly for the screening and ranking of chemicals according to the potential risks they pose. GEOTOX was originally developed for ranking the potential health risks associated with toxic metals and radionuclides in the global environment. The model has been extended to handle organic chemicals. GEOTOX was originally implemented on mainframe systems. Because of this, most of the input must be entered in fixed-format data files. However, comments have been added to the input files to make this format easy to use.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5827402
- Report Number(s):
- UCID-21676; ON: DE89016716
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Terrestrial-- Chemicals Monitoring & Transport-- (-1989)
520200 -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION
BODY
COMPUTER CODES
CONCENTRATION RATIO
FORECASTING
G CODES
GROUND WATER
HAZARDS
HEALTH HAZARDS
HUMAN POPULATIONS
HYDROGEN COMPOUNDS
INGESTION
INHALATION
INTAKE
MASS TRANSFER
MATHEMATICAL MODELS
ORGANS
OXYGEN COMPOUNDS
POPULATIONS
RISK ASSESSMENT
SKIN
SOILS
WATER