LoginThis paper describes the procedures used in residences for rapid grab-sample and time-dependent measurements of the air-exchange rate and radon concentration: the radon source magnitude is calculated from the results of simultaneous measurements of these parameters. Grab-sample measurements in three survey groups comprising 101 US houses showed the radon source magnitude to vary approximately log-normally with a geometric mean of 0.37 and a range of 0.01 to 6.0 pCi/l/h. Successive measurements in six houses in the northeastern United States showed considerable variability in source magnitude within a given house: in two of these houses the source magnitude showed a strong correlation with the air-exchange rate, suggesting that soil gas influxcan be an important transport process for indoor radon.
Measuring radon source magnitude in residential buildings.
Year:
1981
Bibliographic info:
Paper presented at the meeting on Radon and Radon Progeny Measurement, US Environmental Protection Agency, Montgomery, Alabama, August 27-28, 1981. Berkeley, California, USA:Lawrence Berkeley Laboratory, 1981. LBL-12484. 33p. 8 figs, 2 tabs, 12 refs.