Gamma Exposure from Rn Progeny in GAC Units

by Jerry Lowry, Univ of Maine, United States,
Donald Hoxie, Univ of Maine, United States,
Eugene Moreau, Univ of Maine, United States,

Document Type: Proceeding Paper

Part of: Environmental Engineering


An investigation into the gamma exposure rate generated by granular activated carbon (GAC) water treatment units focused on ten sites that covered a range of source radon (Rn) in water from 2,000 pCi/L to over 1,000,000 pCi/L. Extensive data on the gamma exposure rates surrounding these installations were collected and analyzed to generate general relationships for exposure prediction to the occupants of the home, and to mitigators installing and servicing units. Shielding and disposal aspects associated with these GAC units are presented and discussed.

Subject Headings: Gamma function | Water treatment | Granular materials | Activated carbon | Air pollution | Site investigation | Data collection | Data analysis

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