Modeling of radon and its daughter concentrations in ventilated spaces

Journal Article · Sat Nov 01 04:00:00 EST 1980 · J. Air Pollut. Control Assoc.; (United States)

DOI:https://doi.org/10.1080/00022470.1980.10465168· OSTI ID:6568639

Kusuda, T; Silberstein, S; McNall, P E

Reduction of ventilation and infiltration to save energy in heating and cooling buildings can also result in higher concentrations of different pollutants, including radon (Rn-222) and daughter products. A computer program based on differential equations governing the decay and venting of radon 222 and its daughters was developed. It predicts radon and daughter concentrations, total potential alpha energy concentration, and equilibrium factor. The program, which can be used easily by building designers, takes into account time dependence of ventilation and emanation rates. Sample calculations showed that potential alpha energy levels in tightened buildings can reach about 0.01 working level, a level more than twice as high as that currently found in most houses.

• Research Organization: NBS
• OSTI ID: 6568639
• Journal Information: J. Air Pollut. Control Assoc.; (United States), Journal Name: J. Air Pollut. Control Assoc.; (United States) Vol. 30:11; ISSN JPCAA
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100 -- Energy Conservation
Consumption
& Utilization-- Buildings
500300* -- Environment
Atmospheric-- Radioactive Materials Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
ALPHA DECAY RADIOISOTOPES
BUILDINGS
COMPUTER CODES
DAUGHTER PRODUCTS
DAYS LIVING RADIOISOTOPES
ECOLOGICAL CONCENTRATION
ENERGY CONSERVATION
EVEN-EVEN NUCLEI
HEAVY NUCLEI
INDOOR AIR POLLUTION
ISOTOPES
NUCLEI
POLLUTION
RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
RADON 222
RADON ISOTOPES
TIME DEPENDENCE
VENTILATION