A multimedia, multipole-exposure pathway methodology for deriving risk-based standards for tetrachloroethylene (PCE) in soil

Conference · Sat Sep 01 00:00:00 EDT 1990

OSTI ID:5485654

Hall, L C; Daniels, J I; McKone, T E

For contaminants of concern at hazardous-waste sites, the State of California develops exposure criteria referred to as Applied Action Levels (AALs). An AAL is the concentration of a contaminant in a source medium that, when exceeded, is expected to pose an unacceptable risk to human health. Typically, AALs are calculated separately for individual environmental media (e.g., air, water, or soil) and only for a limited number of routes of exposure. This approach fails to recognize the multimedia character of many soil contaminants, and by excluding significant exposure routes, could underestimate risk. Using tetrachloroethylene (perchloroethylene, PCE) in soil as an example, we describe an alternative methodology for driving risk-based AALs from estimates of intake that account for multimedia, multiple-pathway exposure. 24 refs., 7 tabs.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: USDOE; STOFCA; USDOE, Washington, DC (United States); California State Government, Sacramento, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5485654
• Report Number(s): UCRL-102867; CONF-9009293-3; ON: DE91017438
• Resource Relation: Conference: 5. annual conference on hydrocarbon contaminated soils, Amherst, MA (United States), 24-27 Sep 1990
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING
POLICY AND ECONOMY
54 ENVIRONMENTAL SCIENCES
ENVIRONMENTAL TRANSPORT
G CODES
HAZARDOUS MATERIALS
ENVIRONMENTAL EXPOSURE
ORGANIC CHLORINE COMPOUNDS
ECOLOGICAL CONCENTRATION
RISK ASSESSMENT
CARCINOGENESIS
ENVIRONMENTAL EXPOSURE PATHWAY
GROUND WATER
PARTICULATES
REPORTING REQUIREMENTS
SEDIMENTS
SOILS
SURFACE WATERS
THEORETICAL DATA
COMPUTER CODES
DATA
HYDROGEN COMPOUNDS
INFORMATION
MASS TRANSFER
MATERIALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PARTICLES
PATHOGENESIS
WATER
290300* - Energy Planning & Policy- Environment
Health
& Safety
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
540220 - Environment
Terrestrial- Chemicals Monitoring & Transport- (1990-)
540320 - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)