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OLS Field Name OLS Field Data
Main Title Radon Mitigation Studies: South Central Florida Demonstration.
Author Fowler, C. S. ; Williamson, A. D. ; Pyle, B. E. ; Belzer, F. E. ; Coker, R. N. ;
CORP Author Southern Research Inst., Birmingham, AL. ;Florida Dept. of Community Affairs, Tallahassee.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher Oct 92
Year Published 1992
Report Number SRI-ENV-91-44-6411-070; EPA/600/R-92/207;
Stock Number PB93-122299
Additional Subjects Radon ; Houses ; Air pollution control ; Indoor air pollution ; Depressurization ; Slabs ; Fans ; Earth fills ; Polk County(Florida) ; Sub-slab depressurization
Holdings
Library Call Number Additional Info Location Last
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NTIS  PB93-122299 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/08/1993
Collation 144p
Abstract The report gives results of an EPA radon mitigation project involving 14 slab-on-grade houses in Polk County, FL, having indoor radon levels of 320-3810 Bq/cu m (8.7-103 pCi/L), using sub-slab depressurization (SSD) in a variety of applications to evaluate optimal design criteria to be recommended as cost-effective and capable of reducing indoor radon concentrations in houses built over compacted soil fills. For all houses, obvious accessible radon entry points were sealed, and 53-90 L (12-20 gal.) suction pits were dug into the fill material. Two of the houses were mitigated with exterior horizontal suction holes drilled through the stem walls. In four houses, one or more suction pipes were in the garage. The remainder of the interior suction holes were in closets or some other unobtrusive location. Except for the two houses with exterior systems, the other 12 had mitigation fans in the attic. In-line centrifugal fans were used to mitigate each house, although a larger radial blower was installed overnight for experimental purposes in one house, and a vaccumcleaner was used to simulate a larger suction in another house for pressure field measurements only. Post-mitigation worst-case radon concentrations in these houses ranged from 40 to 290 Bq/cu m.
Supplementary Notes See also PB88-184908. Prepared in cooperation with Florida Dept. of Community Affairs, Tallahassee. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
NTIS Title Notes Final rept. Nov 87-Jan 91.
Category Codes 68F; 68A
NTIS Prices PC A07/MF A02
Primary Description 600/13
Document Type NT
Cataloging Source NTIS/MT
Control Number 300826738
Origin NTIS
Type CAT