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RECORD NUMBER: 354 OF 1867

OLS Field Name OLS Field Data
Main Title Comparison of methods for determination of nitrogen dioxide in ambient air /
Author Purdue, L. J. ; Akland, G. G. ; Tabor., E. C.
Other Authors
Author Title of a Work
Purdue, L. J.
Akland, G. G.
Tabor, E. C.
CORP Author National Environmental Research Center, Research Triangle Park, N.C. Quality Assurance and Environmental Monitoring Lab.
Publisher U.S. Environmental Protection Agency, National Environmental Research Center, Office of Research and Development,
Year Published 1975
Report Number EPA/650-4-75-023; EPA-ROAP-22ACK
Stock Number PB245025
OCLC Number 52565063
Subjects Air--Pollution--Measurement. ; Nitrogen oxides.
Additional Subjects Air pollution ; Nitrogen dioxide ; Gas analysis ; Monitors ; Chemiluminescence ; Colorimetric analysis ; Comparison ; Automatic control ; Experimental design ; Ozone ; Continuous sampling ; Air pollution sampling
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101KBB7.PDF
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101KBB7.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 650/4-75-023 Region 3 Library/Philadelphia, PA 07/11/2003
EJBD ARCHIVE EPA 650-4-75-023 Headquarters Library/Washington,DC 05/20/2013
EJBD  EPA 650-4-75-023 Headquarters Library/Washington,DC 01/06/2015
NTIS  PB-245 025 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation x, 85 pages : illustrations, charts ; 28 cm.
Abstract Four methods for the measurement of nitrogen dioxide in ambient air were studied concurrently to determine the intramethod and intermethod comparability of the data generated under a variety of carefully controlled conditions. Included were two automated continuous methods (chemiluminescence and colorimetric) and two manual methods (arsenite and TGS-ANSA). Simultaneous nitrogen dioxide measurements were made on a common air source using duplicate analyzers for each of the automated methods and quadruplicate samples for each of the manual methods. The study was conducted in three phases. Phase I measurements were made on ambient air to which extra NO2 was added in order to provide a wider range of concentrations. Phase II determined the effect of variable NO2 concentration fluctuations during a sampling period. Phase III was an investigation of suspected ozone interference with the automated continuous colorimetric method. The results of the study indicate that the four methods, when properly used, are capable of producing data that are in remarkably good agreement except in the case of the colorimetric method, which yields low results in the presence of high ozone concentrations.
Notes "June 1975." "ROAP No. 26ACK; Program Element No. 1HA326." "EPA/650-4-75-023." PB 245 025--NTIS.
Place Published Research Triangle Park, NC
Corporate Au Added Ent United States. Environmental Protection Agency. Office of Research and Development.; National Environmental Research Center (Research Triangle Park, N.C.). Quality Assurance and Environmental Monitoring Laboratory.
Title Ser Add Ent Research reporting series. Environmental monitoring ; EPA-650/2-75-023.
PUB Date Free Form 1975
Series Title Untraced Environmental monitoring ; EPA-650/4-75-023
NTIS Prices PC A05/MF A01
BIB Level m
Cataloging Source OCLC/T
OCLC Time Stamp 20130514105806
Language eng
Origin OCLC
Type MERGE
OCLC Rec Leader 01560cam 2200349Ka 45020