Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Feasibility of characterizing concealed openings in the house-soil interface for modeling radon gas entry /
Author Nielson, K. K. ; Rogers, V. C.
Other Authors
Author Title of a Work
Rogers, V. C.
CORP Author Rogers and Associates Engineering Corp., Salt Lake City, UT. ;Florida State Univ., Tallahassee. Dept. of Urban and Regional Planning.;Environmental Protection Agency, Washington, DC. Office of Research and Development.;Florida Dept. of Community Affairs, Tallahassee.
Publisher U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory,
Year Published 1995
Report Number EPA 600/R-95/020
Stock Number PB95-178414
Subjects Radon--Measurement--Mathematical models.
Additional Subjects Radon ; Radionuclide migration ; Soil structure interactions ; Permeability ; Cracks ; Porosity ; Leakage ; Air infiltration ; Foundations(Structures) ; Soil gases ; Radioecological concentration ; Indoor air pollution ; Mathematical models
Library Call Number Additional Info Location Last
NTIS  PB95-178414 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 1 volume
The report examines the feasibility of characterizing the total effective size of openings in the house-soil interface that permit indoor radon entry. Sensitivity analyses conducted with a lumped-parameter model (based on the detailed RAETRAD model for radon entry) demonstrate a characteristic pattern of increasing indoor radon concentrations with increasingly negative indoor air pressures. With sensitivity analyses, the lumped-parameter model indicates that the dominant parameters affecting indoor radon levels are the size of the foundation openings, the pressure-driven radon entry velocity, and the ventilation parameters for the house superstructure. By rearranging the lumped-parameter model, measured indoor radon levels can be grouped with measured sub-slab radon levels and house ventilation parameters to express radon entry rates as a linear function of indoor air pressure.