||Site-specific measurements of residential radon protection category /
Nielson, Kirk K. ;
Holt, R. B. ;
Rogers, V. C.
||Rogers and Associates Engineering Corp., Salt Lake City, UT.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.;Florida Dept. of Community Affairs, Tallahassee.
|| U.S. Environmental Protection Agency, National Risk Management Research Laboratory,
Soil gases ;
Radioecological concentration ;
Site characterization ;
Natural radioactivity ;
Radiation monitoring ;
Soil density ;
Particle size ;
Nuclear decay ;
Emanation method ;
Soil properties ;
Residential buildings ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||64 unnumbered pages : table, map ; 28 cm
The report describes a series of benchmark measurements of soil radon potential at seven Florida sites and compares the measurements with regional estimates of radon potential from the Florida radon protection map. The tests were designed to represent small site areas (4,000 sq m), compared with the larger 4 million sq m regions typically shown on the radon protection map. The comparisons included two sites mapped in the low radon potential category, three in the intermediate category, and two in the elevated category. Twenty samples were collected at each site from five boreholes to depths of 2.4 m. Measurements included soil radium concentration, density, texture classification, radon concentration, and water table. A simplified alternative protocol for estimating soil radium distributions from gamma-ray logs of the five boreholes was also examined. The field measurements were analyzed with the RAETRADE-F computer code.