| 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 ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| 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. |
