Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Development of an Active Personal Ozone Sampler Using a Hollow Tube Diffusion Denuder.
Author Geyh, A. S. ; Wolfson, J. M. ; Koutrakis, P. ; Mulik, J. D. ;
CORP Author Harvard School of Public Health, Boston, MA.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher 1994
Year Published 1994
Report Number EPA/600/A-94/154;
Stock Number PB94-197472
Additional Subjects Ozone ; Air pollution sampling ; Risk assessment ; Indoor air pollution ; Health hazards ; Measuring instruments ; Ions ; Chromatography ; Air quality data ; Occupational exposure ; Air pollution monitoring ; Humidity ; Concentration(Composition) ; Performance evaluation ; Occupational safety and health ; HTD(Hollow tube denuder) ; Personal ozone sampler ; LOD(Limit of detection)
Library Call Number Additional Info Location Last
NTIS  PB94-197472 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 11/11/1994
Collation 7p
Personal, microenvironmental and indoor ozone monitoring is currently conducted using a lightweight, inexpensive passive sampling device. Although the passive device is adequate for many studies, the authors are developing a relatively light weight active hollow tube diffusion denuder system which increases the sensivity of ozone measurements and reduces effects associated with variations in wind velocity, for improved personal monitoring. The new hollow tube denuder (HTD) system consists of a 1.4(ID) x 10(L) cm etched borosilicate glass tube attached to a small, low-flow, and relatively inexpensive personal pump. Tube diameter and length were chosen to maximize collection efficiency at a sampling rate of 65 mL/min. The tube is coated with a nitrite reagent which has been successfully used with passive ozone samplers.