| Main Title |
Testing of Indoor Radon Reduction Techniques in Central Ohio Houses: Phase 2 (Winter 1988-1989). |
| Author |
Findlay, W. O. ;
Robertson, A. ;
Scott, A. G. ;
|
| CORP Author |
Acres International Corp., Amherst, NY.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
| Publisher |
May 90 |
| Year Published |
1990 |
| Report Number |
EPA-68-02-4262; EPA/600/8-90/050; |
| Stock Number |
PB90-222704 |
| Additional Subjects |
Air pollution control ;
Radon ;
Houses ;
Ventilation ;
Basements ;
Concentration(Composition) ;
Radioactive contaminants ;
Pressurizing ;
Pressure reduction ;
Indoor air pollution ;
Radiation monitoring ;
Dayton(Ohio) ;
Sub-slab ventilation systems
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB90-222704 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
299p |
| Abstract |
The report gives results of tests of developmental indoor radon reduction techniques in nine slab-on-grade and four crawl-space houses near Dayton, Ohio. The slab-on-grade tests indicated that, when there is a good layer of aggregate under the slab, the sub-slab ventilation (SSV) mitigation technique, with only one or two suction pipes, can generally reduce indoor concentrations below 2 pCi/L (86 to 99% reduction). These reductions can be achieved even when: there are forced-air supply ducts under the slab; the slab is large (up to 2600 sq ft); and the foundation walls are hollow block. Operating the SSV system in suction always gave greater reductions than did operating in pressure. The crawl-space tests demonstrated that depressurizing under a plastic liner over the crawl-space floor was able to reduce living-area radon concentrations below 2 pCi/L (81 to 96% reduction). The performance of such sub-liner depressurization gave better reductions than did crawl-space ventilation (blowing air into, or out of, the crawl space). Completely covering the crawl-space floor with plastic sheeting was not always necessary to get adequate performance. |
| Supplementary Notes |
See also PB89-219984. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
| NTIS Title Notes |
Final rept. Sep 88-May 89. |
| Category Codes |
68F; 77G; 89B |
| NTIS Prices |
PC A13/MF A02 |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
021118693 |
| Origin |
NTIS |
| Type |
CAT |
