Record Display for the EPA National Library Catalog


Main Title Effect of Penetration on the Indoor/Outdoor Ratio of Fine Particles.
Author Mosley, R. B. ; Greenwell, D. J. ; Guo, Z. ; Fortmann, R. ; Whitfield, C. ;
CORP Author ARCADIS Geraghty and Miller, Inc., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Publisher 2000
Year Published 2000
Report Number EPA-68-C9-9201-02-4; EPA/600/A-00/062;
Stock Number PB2000-107842
Additional Subjects Particles ; Air pollution control ; Particulates ; Indoor air pollution ; Penetration ; Residential buildings ; Concentration ; Pressurizing ; Air cleaners ; Stationary sources
Library Call Number Additional Info Location Last
NTIS  PB2000-107842 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 20p
The paper discusses some measured values of penetration into an unoccupied research house in which most of the usual indoor sources of particles are absent, and in which the rate of entry of outdoor particles can be controlled by applied pressure differentials. (NOTE: Several recent studies, indicating significant health risks associated with exposure to fine particles are measured outdoors, have led to increased interest in the relationship between indoor and outdoor fine particles.) Mathematical expressions are developed to compute the characteristic time of response of a building to a change in its environment, such as particle concentration or pressurization. Equations are also presented to compute the particle penetration from measured responses of indoor concentrations to either a pressurization system of air cleaners.