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Theses/Dissertations

Electronic Theses and Dissertations

2003

Environmental Sciences

E-PERM

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A Re-Evaluation Of The Us Epa Radon Risk Categorization For Unicoi County, Tennessee., William Grant Parsons Aug 2003

A Re-Evaluation Of The Us Epa Radon Risk Categorization For Unicoi County, Tennessee., William Grant Parsons

Electronic Theses and Dissertations

Effective risk communication is based on appropriate risk characterization. A reevaluation of the 1987 US EPA radon risk categorization of Unicoi County Tennessee was conducted using in-home radon concentrations, determined in a long-term monitoring study. Radon concentrations were measured in 69 homes using Electret Passive Environmental Radon Monitors (E-PERM’s), following standard methods. Radon concentrations determined in this study (avg. 4.03 ± 3.04) were significantly higher than those measured in the USEPA study (avg. 1.96 ± 1.08). Using this study’s data, the risk categorization was recalculated with the US EPA Radon Index Matrix Model. The model re-categorized Unicoi County from a …