Update on radon-mitigation research in schools. Rept. for 1988-Aug 91
Technical Report
·
OSTI ID:5981342
The paper is an overview of research by EPA's Air and Energy Engineering Research Laboratory (AEERL) on radon mitigation in 47 schools since 1988. The structural and heating, ventilating, and air-conditioning (HVAC) system characteristics of the research schools are presented, along with the mitigation techniques implemented in the schools. Research discussed includes recent and on-going projects in Colorado, Maine, Maryland, Ohio, South Dakota, Tennessee, and Virginia. Initial research focussed on the application of active subslab depressurization (ASD) to school buildings, and recent research has emphasized the ability and limitations of using HVAC systems to reduce radon levels in schools. A goal of future projects is to compare the effectiveness of the two techniques in the same building. Slab-on-grade is the most prevalent substructure in AEERL's research schools and, depending on pressure field extension, ASD systems have been recommended for radon control in many of them. In schools where they have been installed, ASD systems have performed well and are currently being evaluated for long-term performance. The distribution of HVAC system types in these schools is about a third central air handling systems, a third unit ventilators, and a third that do not supply conditioned outdoor air (i.e., fan coil units or radiant heat).
- Research Organization:
- Environmental Protection Agency, Research Triangle Park, NC (United States). Air and Energy Engineering Research Lab.
- OSTI ID:
- 5981342
- Report Number(s):
- PB-91-242958/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
540130* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
AC SYSTEMS
AIR POLLUTION
AIR POLLUTION CONTROL
BUILDINGS
CONTROL
DEPRESSURIZATION
ECOLOGICAL CONCENTRATION
EDUCATIONAL FACILITIES
ELEMENTS
ENERGY SYSTEMS
ENVIRONMENTAL TRANSPORT
FLUIDS
GASES
HVAC SYSTEMS
INDOOR AIR POLLUTION
MASS TRANSFER
MITIGATION
MONITORING
NONMETALS
POLLUTION
POLLUTION CONTROL
POWER SYSTEMS
RADIATION MONITORING
RADIOECOLOGICAL CONCENTRATION
RADIONUCLIDE MIGRATION
RADON
RARE GASES
REMEDIAL ACTION
SCHOOL BUILDINGS
VENTILATION
540130* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (1990-)
AC SYSTEMS
AIR POLLUTION
AIR POLLUTION CONTROL
BUILDINGS
CONTROL
DEPRESSURIZATION
ECOLOGICAL CONCENTRATION
EDUCATIONAL FACILITIES
ELEMENTS
ENERGY SYSTEMS
ENVIRONMENTAL TRANSPORT
FLUIDS
GASES
HVAC SYSTEMS
INDOOR AIR POLLUTION
MASS TRANSFER
MITIGATION
MONITORING
NONMETALS
POLLUTION
POLLUTION CONTROL
POWER SYSTEMS
RADIATION MONITORING
RADIOECOLOGICAL CONCENTRATION
RADIONUCLIDE MIGRATION
RADON
RARE GASES
REMEDIAL ACTION
SCHOOL BUILDINGS
VENTILATION