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Title: 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.
Authors:
Publication Date:
OSTI Identifier:
5023389
Report Number(s):
LBL-19726; CONF-850606-16
ON: DE86000622
DOE Contract Number:
AC03-76SF00098
Resource Type:
Conference
Resource Relation:
Conference: American Society of Heating, Refrigerating and Air-Conditioning Engineers' semiannual meeting, Honolulu, HI, USA, 23 Jun 1985
Research Org:
Lawrence Berkeley Lab., CA (USA)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 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)