||Technical issues related to emission releases from subslab radon mitigation systems /
Sanchez, David C.
||Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|| U.S. Environmental Protection Agency : Office of Research and Development, Air and Energy Engineering Research Laboratory,
Air pollution control ;
Air cleaners ;
Subsurface structures ;
Wind direction ;
Performance evaluation ;
Wind velocity ;
Indoor air pollution ;
Soil gases ;
Air pollution sampling
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||14 pages ; 28 cm
The paper presents a preliminary review of the literature and an estimation of the range of dilutions that are possible for roof-top and elevated side-of-house emission releases. Operating characteristics of typical subslab systems are used with estimated diluations to assess possible emissions reentrainment and downwind effects on houses. Surveys of government and private sector radon mitigation activities indicate that subslab radon mitigation systems account for more than 50% of all installed systems. While ongoing mitigation research and demonstration projects show promise for optimizing system designs in the future, current practice relies on the installation of robust (effective oversized) systems. Such systems can remove large quantities of radon-laden soil gas from underneath and from around mitigated houses.
"Presented at ASCE National Conference on Environmental Engineering, Austin TX, 7/9-12/89." "David C. Sanchez, project officer." "EPA-600/D-89/078." "March 1989." Microfiche.