Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Comparability of nine methods for monitoring NO2 in ambient air /
Author Hartwell, T. D. ; Clayton, C. A. ; Decker, C. E. ; Hunt., P. N.
Other Authors
Author Title of a Work
Hartwell, T. D.
CORP Author Research Triangle Inst., Durham, N.C.
Publisher U.S. Environmental Protection Agency,
Year Published 1974
Report Number EPA-650/4-74-012; RTI-25U-711-3; EPA-68-02-0335
Stock Number PB-233 429
OCLC Number 01960695
Additional Subjects Nitrogen dioxide ; Gas analysis ; Colorimetric analysis ; Azo dyes ; Monitors ; Performance evaluation ; Comparison ; Field tests ; Ozone ; Statistical analysis ; Data processing ; Precision ; Chemiluminescence ; Air pollution detection ; Air pollution sampling ; Ethylene diamine/N-naphthyl ; Arsenites ; Ethanol/nitrilo-tri
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 650-4-74-012 Headquarters Library/Washington,DC 05/20/2013
EJBD  EPA 650-4-74-012 Headquarters Library/Washington,DC 10/02/2014
EKBD  EPA-650/4-74-012 Research Triangle Park Library/RTP, NC 08/29/2017
NTIS  PB-233 429 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 273 pages in various pagings : illustrations.
The present study was undertaken to compare several NO2 monitoring methods based on field data collected by EPA. Three continuous monitors (Chemiluminescent and two Saltzmans) and six bubblers (two Arsenite, two modifications of the Jacobs Hochheiser, and two Triethanolamine methods were investigated. In particular, objectives of the project were (a) to determine the comparability of these nine methods using field measurements obtained in Chattanooga, Los Angeles, and St. Louis and (b) to determine, if possible, conversion factors for converting readings from one method to another. The criteria used in attempting to satisfy these objectives involved examining statistics such as correlations between methods, ratios of method means, and regression relationships between pairs of methods.
Contract no. 68-02-0335; program element no. 1AA005. Includes bibliographical references (pages 105-107).