Radon Entry & Control Versus Indoor Dynamics

by Purush K. TerKonda, Univ of Missouri-Rolla, United States,
Thomas G. Matthews, Univ of Missouri-Rolla, United States,
David L. Wilson, Univ of Missouri-Rolla, United States,
Ralph J. Saultz, Univ of Missouri-Rolla, United States,
Charles S. Dudney, Univ of Missouri-Rolla, United States,



Document Type: Proceeding Paper

Part of: Environmental Engineering

Abstract:

The measurements of air infiltration, interzonal transport and exfiltration as the diagnostic procedures have been significantly influential in the selection, implementation and evaluation of radon mitigation techniques in detailed studies of four crawlspace and four daylight basement homes in the Tennessee Valley. Blower door tests showed a typical whole-house leakage area of 0.4-0.9 m suggesting the ineffective radon control methods of basement pressurization or heat recovery ventilation techniques. The centralized forced-air heating and air conditioning (HAC) systems and clothes dryers affected minimally the differential pressures across basement slabs, building shells and floors between the substructure (e.g., basement, crawlspace) and superstructure due to high ventilation rates and low duty cycles.

Subject Headings: HVAC | Air pollution | Indoor environmental quality | Basements | Infiltration | Air flow | Filtration | Tennessee | United States

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