Full Record Display for the EPA National Library Catalog


Main Title Reentry of Radon from Mitigation System Outlets.
Author Yuill, G. K. ; Coughlin, R. J. ;
CORP Author Pennsylvania State Univ., University Park. Dept. of Architectural Engineering.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher 1994
Year Published 1994
Report Number EPA-68-D0-0097; EPA/600/A-94/129;
Stock Number PB94-190972
Additional Subjects Radon ; Radionuclide migration ; Air flow ; Radiation monitoring ; Tracer methods ; Sulfur hexafluoride ; Indoor air pollution ; Residential buildings ; Natural radioactivity ; Soil-structure interactions ; Reentry ; Soil gases ; Permeability ; Basements ; Roofs ; Air pollution control ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB94-190972 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 25p
Abstract Some radon mitigation systems draw air with a high radon concentration from under the basement floors of houses and exhaust it outdoors. The objective of the project was to measure reentry rates for radon released at roof level and at ground level near a house, to determine whether or not exhaust above the roof is necessary. This was done by using a portable mock-up of a radon mitigation system exhaust, with sulphur hexafluoride (SF6) as a tracer gas. The roof level exhaust produced maximum indoor sulphur hexafluoride concentrations significantly lower than the ground level exhaust. This suggests that the better radon discharge location is on the roof of a house.
Supplementary Notes Presented at the Annual Meeting of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., Orlando, FL., June 25-29, 1994. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Title Annotations Reprint: Reentry of Radon from Mitigation System Outlets.
Category Codes 68F; 68A; 89B; 77G
NTIS Prices PC A03/MF A01
Primary Description 600/13
Document Type NT
Cataloging Source NTIS/MT
Control Number 424431109
Origin NTIS
Type CAT