Linda C. S. Gundersen and Richard B. Wanty

• Preface -- Part 1: Studies of Radon in Rocks and Soil -- Section 1: Techniques for Measuring Radon in Soil Methods of Characterization of Ground for Assessment of Indoor Radon Potential at a Site, /by Allan B. Tanner -- Abstract -- Introduction -- The Emanation Process -- Permeability -- Diffusion -- Models of the Soil Regime Near a House -- Radon Measurement Methods -- Short-Term Meteorological Effects -- Seasonal Effects -- Acknowledgments -- References Cited -- Appendix A. Derivation of the Radon Availability Number (RAN) -- Appendix B. Derivation of the Relations among Permeability, Flow Rate, and Pressures in the Hemispherical Geometry of the Sampling Hole -- Appendix C. Derivation of Relations among Permeability, Flow Rate, and Pressures for Radial Flow into a Cylindrical Sampling Hole -- Simple Techniques for Soil-Gas and Water Sampling for Radon Analysis, /by G.M. Reimer -- Abstract -- Introduction -- Soil-Gas Sampling Technique -- Water Sample Collecting Technique -- References Cited -- A Preliminary Evaluation of Environmental Factors Influencing Day-to-Day and Seasonal Soil-Gas Radon Concentrations, /by Sigrid Asher-Bolinder, Douglass E. Owen, and R. Randall Schumann -- Abstract -- Introduction -- The Importance of Time Scales -- Previous Studies -- Site Description -- Methods -- Discussion -- Summary -- References Cited -- Derivation of Radon Migration Rates in the Surficial Environment by Use of Helium Injection Experiments, /by G.M. Reimer -- Abstract -- Introduction -- Study Setting -- Results -- Discussion -- Conclusions -- Acknowledgments -- References Cited -- Section 2: Geologic Field Studies Radon in Sheared Metamorphic and Igneous Rocks, /by Linda C.S. Gundersen -- Abstract -- Introduction -- Methods -- Boyertown, Pennsylvania -- Brookneal Zone, Virginia -- Glen Gardner, New Jersey -- Montgomery County, Maryland -- Discussion and Conclusions -- Acknowledgments -- References Cited -- The Geology and Geochemistry of Soils in Boyertown and Easton,

Linda C. S. Gundersen and Richard B. Wanty

• Preface -- Part 1: Studies of Radon in Rocks and Soil -- Section 1: Techniques for Measuring Radon in Soil Methods of Characterization of Ground for Assessment of Indoor Radon Potential at a Site, /by Allan B. Tanner -- Abstract -- Introduction -- The Emanation Process -- Permeability -- Diffusion -- Models of the Soil Regime Near a House -- Radon Measurement Methods -- Short-Term Meteorological Effects -- Seasonal Effects -- Acknowledgments -- References Cited -- Appendix A. Derivation of the Radon Availability Number (RAN) -- Appendix B. Derivation of the Relations among Permeability, Flow Rate, and Pressures in the Hemispherical Geometry of the Sampling Hole -- Appendix C. Derivation of Relations among Permeability, Flow Rate, and Pressures for Radial Flow into a Cylindrical Sampling Hole -- Simple Techniques for Soil-Gas and Water Sampling for Radon Analysis, /by G.M. Reimer -- Abstract -- Introduction -- Soil-Gas Sampling Technique -- Water Sample Collecting Technique -- References Cited -- A Preliminary Evaluation of Environmental Factors Influencing Day-to-Day and Seasonal Soil-Gas Radon Concentrations, /by Sigrid Asher-Bolinder, Douglass E. Owen, and R. Randall Schumann -- Abstract -- Introduction -- The Importance of Time Scales -- Previous Studies -- Site Description -- Methods -- Discussion -- Summary -- References Cited -- Derivation of Radon Migration Rates in the Surficial Environment by Use of Helium Injection Experiments, /by G.M. Reimer -- Abstract -- Introduction -- Study Setting -- Results -- Discussion -- Conclusions -- Acknowledgments -- References Cited -- Section 2: Geologic Field Studies Radon in Sheared Metamorphic and Igneous Rocks, /by Linda C.S. Gundersen -- Abstract -- Introduction -- Methods -- Boyertown, Pennsylvania -- Brookneal Zone, Virginia -- Glen Gardner, New Jersey -- Montgomery County, Maryland -- Discussion and Conclusions -- Acknowledgments -- References Cited -- The Geology and Geochemistry of Soils in Boyertown and Easton,

Linda C. S. Gundersen and Richard B. Wanty

• Preface -- Part 1: Studies of Radon in Rocks and Soil -- Section 1: Techniques for Measuring Radon in Soil Methods of Characterization of Ground for Assessment of Indoor Radon Potential at a Site, /by Allan B. Tanner -- Abstract -- Introduction -- The Emanation Process -- Permeability -- Diffusion -- Models of the Soil Regime Near a House -- Radon Measurement Methods -- Short-Term Meteorological Effects -- Seasonal Effects -- Acknowledgments -- References Cited -- Appendix A. Derivation of the Radon Availability Number (RAN) -- Appendix B. Derivation of the Relations among Permeability, Flow Rate, and Pressures in the Hemispherical Geometry of the Sampling Hole -- Appendix C. Derivation of Relations among Permeability, Flow Rate, and Pressures for Radial Flow into a Cylindrical Sampling Hole -- Simple Techniques for Soil-Gas and Water Sampling for Radon Analysis, /by G.M. Reimer -- Abstract -- Introduction -- Soil-Gas Sampling Technique -- Water Sample Collecting Technique -- References Cited -- A Preliminary Evaluation of Environmental Factors Influencing Day-to-Day and Seasonal Soil-Gas Radon Concentrations, /by Sigrid Asher-Bolinder, Douglass E. Owen, and R. Randall Schumann -- Abstract -- Introduction -- The Importance of Time Scales -- Previous Studies -- Site Description -- Methods -- Discussion -- Summary -- References Cited -- Derivation of Radon Migration Rates in the Surficial Environment by Use of Helium Injection Experiments, /by G.M. Reimer -- Abstract -- Introduction -- Study Setting -- Results -- Discussion -- Conclusions -- Acknowledgments -- References Cited -- Section 2: Geologic Field Studies Radon in Sheared Metamorphic and Igneous Rocks, /by Linda C.S. Gundersen -- Abstract -- Introduction -- Methods -- Boyertown, Pennsylvania -- Brookneal Zone, Virginia -- Glen Gardner, New Jersey -- Montgomery County, Maryland -- Discussion and Conclusions -- Acknowledgments -- References Cited -- The Geology and Geochemistry of Soils in Boyertown and Easton,