Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Methodology and instrumentation to measure gaseous ammonia /
Author David, D. J. ; Willson, M. C. ; Ruffin., D. S.
Other Authors
Author Title of a Work
Willson, M. C.
Ruffin, D. S.
CORP Author Monsanto Research Corp., Dayton, Ohio. Dayton Lab.;Environmental Sciences Research Lab., Research Triangle Park, N.C.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Environmental Sciences Research Laboratory,
Year Published 1977
Report Number EPA/600/2-77/125
Stock Number PB-273 018
OCLC Number 42711841
Subjects Ammonia. ; Air--Pollution--Measurement--Equipment and supplies. ; Air--Pollution--Measurement--Equipment and supplies. ; Ammonia.
Additional Subjects Gas detectors ; Ammonia ; Atmospheric composition ; Gas analysis ; Sulfur oxides ; Optical properties ; Concentration(Composition) ; Chemical analysis ; Quartz ; Sampling ; Air pollution ; Chemical reactions ; Coatings ; Field tests ; Performance evaluation ; Atmospheric chemistry ; Air pollution detection ; Air pollution sampling
Internet Access
Description Access URL
Local Library Info
Library Local Subject Local Note
EKB EKB copy is an NTIS reproduction.
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-2-77-125 Headquarters Library/Washington,DC 10/26/2011
EJBD  EPA 600-2-77-125 c.1 Headquarters Library/Washington,DC 03/10/2014
EKBD  EPA-600/2-77-125 Research Triangle Park Library/RTP, NC 06/20/2003
ESAD  EPA 600-2-77-125 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-273 018 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation xi, 105 p. : ill. ; 28 cm.
Methodology for the time integrated collection and analysis of atmospheric ammonia was developed. Ammonia is primarily measured because it can react with SOx to produce ammonium sulfate. Since SOx is one of the principle air pollutants, it is important to determine its atmospheric reactions. The methodology makes use of optical wave guides which are 1 x 20 mm quartz rods coated with a chemical that is specific for NH3. As ammonia reacts with the chemical on the rod, the optical properties of light passing through the rod change and can be directly related to the NH3 concentration. An optical wave guide analyzer was developed to measure the resulting change in optical properties. Concentrations as low as 1 ppb can be assayed. The coated quartz rods are placed in the field for 24 hours and brought back to the laboratory for analysis by the analyzer.
"EPA 600/2-77/125." EPA contract no. 68-02-1793; EPA project officer: James Mulik. References: pp. 100-104.