Record Display for the EPA National Library Catalog


Main Title Some Results from the Demonstration of Indoor Radon Reduction Measures in Block Basement Houses.
Author Henschel, D. B. ; Scott, A. G. ;
CORP Author American ATCON, Inc., Wilmington, DE.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher c1989
Year Published 1989
Report Number EPA-68-02-4203; EPA/600/J-89/327;
Stock Number PB90-216391
Additional Subjects Radon ; Residential buildings ; Pollution control ; Soils ; Ventilation ; Concentration(Composition) ; Vacuum equipment ; Concrete slabs ; Drain tiles ; Footings ; Stationary sources ; Soil gases
Library Call Number Additional Info Location Last
NTIS  PB90-216391 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
The paper gives results of tests of active soil ventilation techniques in 24 block-wall basement houses in eastern Pennsylvania having significantly elevated indoor radon concentrations, generally above 740 Bq/cu m. The results indicate that radon levels can be reduced substantially (often below the U.S. EPA guideline of 148 Bq/cu m) if effective suction can be drawn on the soil underneath the concrete slabs of these houses. Such effective suction appears achievable when either: (1) the house has a complete loop of drain tile around its footings for water drainage purposes, and suction is drawn on that loop; or (2) a sufficient number of suction pipes can be inserted at the proper locations into the crushed rock or soil underneath the slab.