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Measurements of the equilibrium factor for 222Rn daughters in dwellings in India
M C Subba Ramu1, A N Shaikh, T S Muraleedharan
1Pollution Monitoring Section, Bhabha Atomic Research Centre, Bombay, India.
The Science of the Total Environment
|December 1, 1990
Abstract:
As part of an ongoing project to assess the population dose from indoor radon and its daughters in India, a set of parallel measurements was made in more than 150 houses of different types to estimate indoor radon and progeny levels. Time-integrated solid state nuclear track detectors were employed for the measurement of radon concentration and potential alpha energy exposure level. From these values the equilibrium factor (F) between radon and its progeny was estimated for each house. An average F value of 0.39 was obtained.