||Indoor Radon Reduction in Crawl-Space Houses: A Review of Alternative Approaches.
Henschel, D. B. ;
||Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Indoor air pollution ;
Air pollution control ;
State of the art ;
Design criteria ;
Performance evaluation ;
Submembrane depressurization systems ;
Crawlspace submembrane depressurization systems ;
Active soil depressurization systems
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||The paper discusses the state of the art of alternative technologies for reducing radon concentrations in the living areas of houses with crawl-space foundations. For the two most promising technologies-sub-membrane depressurization (SMD) and crawl-space depressurization-the effects of individual house design, house operation, system design, system operation, and geological variables on system performance have been evaluated. SMD is consistently the most effective technique. Evaluation of the effects of the various house and mitigation system variables indicates that the major data gaps are: (1) the conditions under which crawl-space depressurization might be preferred over SMD; (2) the optimal method for distributing suction beneath a SMD membrane under different conditions; (3) the optimal degree of SMD membrane sealing required under different conditions; (4) the conditions under which it may be possible to leave a portion of the crawl-space uncovered; and (5) the durability of SMD the other systems.
||Pub. in Indoor Air, v2 p272-287 1992. See also PB91-125831 and PB92-120443.
|NTIS Title Notes
||Journal article Feb 91-Jul 92.
||Reprint: Indoor Radon Reduction in Crawl-Space Houses: A Review of Alternative Approaches.
||68F; 68A; 89B
||PC A03/MF A01