Control of indoor radon and radon progeny concentrations
There are three general categories of techniques for the control of radon and radon progeny concentrations in indoor air - restriction of radon entry, reduction of indoor radon concentrations by ventilation or air cleaning, and removal of airborne radon progeny. The predominant radon entry process in most residences appears to be pressure driven flow of soil gas through cracks or other openings in the basement, slab, or subfloor. Sealing these openings or ventilation of the subslab or subfloor space are methods of reducing radon entry rates. Indoor radon concentrations may be reduced by increased ventilation. The use of charcoal filters for removal of radon gas in the indoor air by adsorption has also been proposed. Concentrations of radon progeny, which are responsible for most of the health risks associated with radon exposures, can be controlled by use of electrostatic or mechanical filtration. Air circulation can also reduce radon progeny concentrations in certain cases. This paper reviews the application and limitations of each of these control measures and discusses recent experimental results.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 5023389
- Report Number(s):
- LBL-19726; CONF-850606-16; ON: DE86000622
- Resource Relation:
- Conference: American Society of Heating, Refrigerating and Air-Conditioning Engineers' semiannual meeting, Honolulu, HI, USA, 23 Jun 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AIR FILTERS
EFFICIENCY
HOUSES
VENTILATION
RADON
AIR POLLUTION CONTROL
RADIOECOLOGICAL CONCENTRATION
AIR CLEANING
CHARCOAL
DAUGHTER PRODUCTS
DEPOSITION
ELECTROSTATIC PRECIPITATORS
FILTRATION
INDOOR AIR POLLUTION
NATURAL OCCURRENCE
NATURAL RADIOACTIVITY
RADON 220
RADON 222
ADSORBENTS
AIR POLLUTION
ALPHA DECAY RADIOISOTOPES
BUILDINGS
CLEANING
CONTROL
DAYS LIVING RADIOISOTOPES
ECOLOGICAL CONCENTRATION
ELEMENTS
EQUIPMENT
EVEN-EVEN NUCLEI
FILTERS
FLUIDS
GASES
HEAVY NUCLEI
ISOTOPES
NONMETALS
NUCLEI
POLLUTION
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
RADIOACTIVITY
RADIOISOTOPES
RADON ISOTOPES
RARE GASES
RESIDENTIAL BUILDINGS
SECONDS LIVING RADIOISOTOPES
SEPARATION PROCESSES
500300* - Environment
Atmospheric- Radioactive Materials Monitoring & Transport- (-1989)