||Use of natural ventilation to control radon in single family dwellings /
Cavallo, A. ;
Berkner, C. ;
||Princeton Univ., NJ. Center for Energy and Environmental Studies.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|| U.S. Environmental Protection Agency, Office of Research and Development, Air and Energy Engineering Research Laboratory,
||EPA/600/D-90/095; AEERL-P-680; EPA-R-814673
Indoor Air '90, July 29-August 3 : (--1990 :--Toronto, Canada) ;
Air pollution control ;
Environmental engineering ;
Air flow ;
Residential buildings ;
Performance evaluation ;
Pressure distribution ;
Indoor air pollution ;
Air pollution sampling ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||9 pages ; 28 cm
||The paper discusses an examination of a fundamental assumption in radon mitigation work, that natural ventilation is not very effective in lowering indoor radon levels in buildings. (The mechanism by which ventilation acted to reduce radon levels was considered to be simple dilution; thus a factor of 10 increase in the air exchange rate would be required to reduce radon levels by this same factor.) The examination (in a natural ventilation experiment in a research house) showed that this assumption is fundamentally incorrect. Measuring the pressure field of a basement in conjunction with the building air exchange rate shows that ventilation reduces radon levels two ways: (1) by dilution, and (2) by modification of the pressure field of the building shell. The experiment indicates that effect (2) is much more important than (1)--dilution--and that natural ventilation can cause a much larger reduction in radon levels than was previously believed possible.
||Caption title. "EPA/600/D-90/095." "Ronald B. Mosley, project officer." Microfiche.
||Research Triangle Park, NC :
||Presented at Indoor Air '90 held in Toronto (Canada) on July 29-August 3, 1990. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|Corporate Au Added Ent
||United States. Environmental Protection Agency. Office of Research and Development. ; Air and Energy Engineering Research Laboratory. ; Princeton University. Center for Energy and Environmental Studies.
|PUB Date Free Form
||PC A02/MF A01
|OCLC Time Stamp
|OCLC Rec Leader
||01417nam 2200337Ka 45020