Performance experience with radon mitigation systems

Conference · Mon Jan 01 04:00:00 EST 1990

OSTI ID:5668448

Gammage, R B; Wilson, D L

Both passive and active radon mitigations were installed in four houses with slab-on-grade or combined crawlspace/slab-on-grade basements. Passive mitigation reduced indoor radon by 40 to 80%. Combined passive and active mitigation was necessary for reducing radon levels to below 150 Bq m{sup {minus}3}. Active mitigation employed sub vapor-barrier and/or subslab depressurization. The number of subslab mitigation pits needed at each house was determined by diagnostic measurements of permeability and pressure-field extension. Performances of the mitigation systems at three houses were stable over one year. Increasing permeability in the hard-packed clay beneath the slab of one house may result in decreased effectiveness of the subslab depressurization. 2 refs., 2 figs., 1 tab.

• Research Organization: Oak Ridge National Lab., TN (USA)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5668448
• Report Number(s): CONF-900724-4; ON: DE90009236
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
54 ENVIRONMENTAL SCIENCES
540130 -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
AIR POLLUTION
ALPHA DECAY RADIOISOTOPES
BUILDINGS
CLAYS
CONTROL SYSTEMS
DAYS LIVING RADIOISOTOPES
DEPRESSURIZATION
EVEN-EVEN NUCLEI
HAZARDS
HEALTH HAZARDS
HEAVY NUCLEI
HUMAN POPULATIONS
IMPLEMENTATION
INDOOR AIR POLLUTION
ISOTOPES
MEASURING METHODS
MINIMIZATION
MITIGATION
NATIONAL ORGANIZATIONS
NUCLEI
PERMEABILITY
POLLUTION
POPULATIONS
RADIOISOTOPES
RADON 222
RADON ISOTOPES
RESEARCH PROGRAMS
RESIDENTIAL BUILDINGS
US EPA
US ORGANIZATIONS