CalTOX: A multimedia total-exposure model for hazardous-wastes sites

Technical Report · Tue Dec 01 00:00:00 EST 1992

OSTI ID:6113893

McKone, T E

Multimedia, multiple pathway exposure models are used in the CalTOX model to estimate average daily doses within a human population in the vicinity of a hazardous-substances-release site. The models encompass twenty-three exposure pathways. This report describes these model and specifies methods, assumptions, and inputs for making exposure and dose assessments. The end product of an exposure assessment for contaminants at hazardous-waste sites is typically an estimation of the distribution of potential dose among the population whose air, water, and soil have been contaminated by the hazardous-waste-substances-release site. The exposure analysis begins with the assumption that, through models or measurements, concentrations are available for ambient air (gas and particle phases), surface water, ground water, surface soil, and root-zone soil at a hazardous-waste-substances-release site. The exposure-assessment process consists of relating contaminant concentrations in these environmental media to contaminant concentrations in the media with which a human population has contact (personal air, tap water, foods, household dusts, soils, etc.). The average daily dose is the product of the exposure concentrations in these contact media and an intake or uptake factor that relates the concentrations to the distributions of potential dose within the population.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: STOFCA; California State Government, Sacramento, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6113893
• Report Number(s): UCRL-CR-111456-Pt.3; ON: DE93010507; CNN: Agreement 91-T0038-A-1
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ENVIRONMENTAL EXPOSURE
C CODES
HAZARDOUS MATERIALS
ENVIRONMENTAL EXPOSURE PATHWAY
ENVIRONMENTAL TRANSPORT
AIR
FISHES
FOOD CHAINS
HUMAN POPULATIONS
INGESTION
INHALATION
MATHEMATICAL MODELS
MILK
PLANTS
SOILS
TOXIC MATERIALS
WASTE DISPOSAL
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL MATERIALS
BODY FLUIDS
COMPUTER CODES
FLUIDS
FOOD
GASES
INTAKE
MANAGEMENT
MASS TRANSFER
MATERIALS
POPULATIONS
VERTEBRATES
WASTE MANAGEMENT
540220* - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
560300 - Chemicals Metabolism & Toxicology
990200 - Mathematics & Computers