Record Display for the EPA National Library Catalog


Main Title Preferential Radon Transport Through Highly Permeable Channels in Soils.
Author Mosley, R. B. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. National Risk Management Research Lab.
Publisher 2001
Year Published 2001
Report Number EPA/600/A-02/069 ;NRML-RTP-P-682;
Stock Number PB2002-107519
Additional Subjects Radon ; Soils ; Environmental transport ; Air flow ; Sampling ; Health hazards ; Natural radioactivity ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB2002-107519 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 32p
The paper discusses preferential radon transport through highly permeable channels in soils. Indoor radon levels (that can pose a serious health risk) can be dramatically increased by air that is drawn into buildings through pipe penetrations that connect to permeable channels in soils. The channels, commonly containing gravel bedding around utility pipes, act as a collecting plenum for soil radon and can draw air from distances approaching 100 m. Equations characterizing air and radon flow in such channels are developed and compared with field data in this paper. Three test channels were constructed to simulate conditions associated with utility line installations. Site sampling characterized soil radium, emanation, moisture, particle size, density, specific gravity, permeability, and diffusion coefficient properties.