Full Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effects of Activated Charcoal Filtration and Ozonation on Hydrocarbon and Carbonyl Levels of Ambient Air Used in Controlled-Exposure Chamber Studies of Air Pollutant Human Health Effects.
Author Tilton, B. E. ; Bufalini, J. J. ; Meeks, S. A. ; Gay, B. W. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher 1994
Year Published 1994
Report Number EPA/600/A-94/166;
Stock Number PB94-210523
Additional Subjects Air pollution effects(Humans) ; Test chambers ; Activated carbon treatment ; Ozonization ; Carbonyl compounds ; Hydrocarbons ; Ozone ; Air pollution sampling ; Health risks ; Respiratory diseases ; Silica gel ; VOCs(Volatile organic compounds)
Library Call Number Additional Info Location Last
NTIS  PB94-210523 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/11/1994
Collation 8p
Abstract Air sampling experiments were done in 1985, 1987, and 1993 at the human-exposure chamber facility of the U.S. EPA Health Effects Research Laboratory in Chapel Hill, NC. Measurements of volatile organic compounds (VOCs) by GC-FID and aldehyde measurements by the DNPH silica gel cartridge method were made, comparing levels at the outside air intake to levels in the human controlled-exposure chamber. Ambient air passed through activated-charcoal filters can contain varying residual amounts of water vapor and gaseous pollutants such as hydrocarbons, oxygenates, and other organic and inorganic species. When the charcoal-filtered air stream is exposed to high-intensity radiation to generate ozone for use in human controlled-exposure experiments, there may be formation of compounds other than ozone. Results of measurements of some compounds of interest are discussed.
NTIS Title Notes Symposium paper.
Category Codes 94K; 68A; 68G
NTIS Prices PC A02/MF A01
Primary Description 600/09
Document Type NT
Cataloging Source NTIS/MT
Control Number 428724589
Origin NTIS
Type CAT