Approved for public release; distribution unlimited The findings in this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents. 'Johnson and Kurnar are affiliated with Argonne's Chemical Technology Division.
The relationships of Rn levels in basements and first floors of homes to topographic location in a northeastern ridge and valley section of Pennsylvania were investigated. Topographic variables relating to elevation and slope were quantified and related to house Rn levels using both conventional and classification and regression tree (CART) analyses. The… (More)