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ASSESSMENT OF THE EXPOSURE TO AND DOSE FROM RADON DECAY PRODUCTS IN NORMALLY OCCUPIED HOMES
Citation:
Hopke, P. K., B. Jensen, C. S. Li, N. Montassier, P. Wasiolek, A. J. Cavallo, K. Gatsby, AND R. H. Socolow. ASSESSMENT OF THE EXPOSURE TO AND DOSE FROM RADON DECAY PRODUCTS IN NORMALLY OCCUPIED HOMES. ENVIRONMENTAL SCIENCE & TECHNOLOGY 29(5):1359-1364, (1995).
Impact/Purpose:
Journal Article
Description:
The paper gives results of an assessment of the exposure to radon decay products in seven houses in northeastern U.S. and southeastern Canada. n two houses, a single individual smoked cigarettes. ariety of heating and cooking appliances were in the houses. hese studies provided 565 measurements of the activity weighted size distributions in the houses. he median value for the equilibrium factor was 0.408, compared with the previously used value of 0.50. sing the recently adopted International Commission on Radiological Protection (ICRP) lung deposition and dosimetry model, the hourly equivalent lung dose rate per unit, radon exposure was estimated for each measured size distribution. he mean equivalent dose rate per unit of Rn-22 gas concentration was about 140 nsv/(h Bq cu m). he equivalent dose was strongly correlated with the ratio of the decay product concentration to that of radon, termed the equilibrium factor, F, with a correlation coefficient of 0.785. he correlation coefficient with the < or = 2-nm size fraction (the unattached fraction) was 0.169, reflecting no significant relationship with the unattached fraction. ifferences between houses with smokers and those without were noted in the exposure conditions, but the resulting dose rate per unit of radon gas concentration was essentially the same for the two groups.
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ASSESSMENT OF THE EXPOSURE TO AND DOSE FROM RADON DECAY PRODUCTS IN NORMALLY OCCUPIED HOMES
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