Title | New Methods of Energy Efficient Radon Mitigation |
Publication Type | Journal Article |
Year of Publication | 1995 |
Authors | William J Fisk, Richard J Prill, John D Wooley, William J Fisk, Yves C Bonnefous, Ashok J Gadgil, William J Riley |
Journal | Health Physics |
Volume | 68 |
Start Page | 689 |
Issue | 5 |
Pagination | 689-698 |
Date Published | 05/1995 |
Abstract | Two new radon mitigation techniques are introduced and their evaluation in a field study complemented by numerical model predictions is described. Based on numerical predictions, installation of a sub gravel membrane at the study site resulted in a factor of 2 reduction in indoor radon concentrations. Experimental data indicated that installation of "short-circuit" pipes extending between the subslab gravel and outdoors caused an additional factor of 2 decrease in the radon concentration. Consequently, the combination of these two passive radon mitigation features, called the membrane and short-circuit (MASC) technique, was associated with a factor of 4 reduction in indoor radon concentration. The energy-efficient active radon mitigation method, called efficient active subslab pressurization (EASP), required only 20% of the fan energy of conventional active subslab depressurization and reduced the indoor radon concentration by approximately a factor of 15, including the numerically-predicted impact of the sub-gravel membrane. |
LBNL Report Number | LBL-36519 |