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Title: New Methods of Energy Efficient Radon Mitigation

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 two 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 two 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 four 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.
Authors:
; ; ; ; ;
Publication Date:
OSTI Identifier:
1010613
Report Number(s):
LBL-36519
Journal ID: ISSN 0017-9078; HLTPAO; TRN: US201108%%495
DOE Contract Number:
DE-AC02-05CH11231
Resource Type:
Journal Article
Resource Relation:
Journal Name: Health Physics; Journal Volume: 68; Journal Issue: 5; Related Information: Journal Publication Date: 5/1/1995
Research Org:
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
Sponsoring Org:
Environmental Energy Technologies Division
Country of Publication:
United States
Language:
English
Subject:
54; BLOWERS; DEPRESSURIZATION; EVALUATION; INDOORS; MEMBRANES; MITIGATION; OUTDOORS; PRESSURIZATION; RADON