Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluation of triethanolamine procedure for determination of nitrogen dioxide in ambient air /
Author Ellis, E. Carol ; Margeson., John H.
Other Authors
Author Title of a Work
Ellis, E. Carol.
Margeson, John H.
CORP Author National Environmental Research Center, Research Triangle Park, N.C. Quality Assurance and Environmental Monitoring Lab.;Environmental Protection Agency, Washington, D.C.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, National Environmental Research Center,
Year Published 1974
Report Number PB237348; EPA-650/4-74-031
Stock Number PB237348
OCLC Number 55704623
Subjects Nitrogen dioxide--Environmental aspects--United States.
Additional Subjects Nitrogen dioxide ; Gas analysis ; Colorimetric analysis ; Bubbling ; Calibration ; Collection ; Gas sampling ; Performance evaluation ; Air ; Air pollution detection ; Ethanol/nitrilo-tri
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 650-4-74-031 Headquarters Library/Washington,DC 05/20/2013
EJBD  EPA 650-4-74-031 Headquarters Library/Washington,DC 01/05/2015
EKBD  EPA-650/4-74-031 Research Triangle Park Library/RTP, NC 08/29/2017
NTIS  PB-237 348 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation vi, 28 pages : illustrations ; 28 cm.
A detailed method write-up describing the triethanolamine (TEA) manual procedure for measurement of nitrogen dioxide in ambient air was developed. The method involves sampling for 24 hours with a fritted bubbler immersed in 0.1N TEA collecting solution. The method was evaluated to determine its usefulness for measuring nitrogen dioxide in anbient air. This involved a review of the procedure as developed and subsequent laboratory experiments to better define some obscure points in the procedure. The constancy of the method's collection efficiency, the addition of n-butanol to enhance the collection efficiency and the need to use fritted bubblers as gas dispersers to assure high collection efficiency were the main points investigated in these experiments. (Modified author abstract)
Prepared for the U.S. Environmental Protection Agency Contract Number: 015 "EPA-650/4-74-031." "July 1974." Also distributed by National Technical Information Service (NTIS) as PB237348.