Record Display for the EPA National Library Catalog


Main Title Feasibility study of remote monitoring of gas pollutant emissions by Raman spectroscopy : final report.
Author Leonard, Donald A. ; Leonar, Donald A.
CORP Author Avco Everett Research Lab., Everett, Mass.
Publisher Avco Everett Research Laboratory, Avco Corp.,
Year Published 1970
Report Number PB 198 204; CPA 22-69-62; EPA-APTD-0658; AERL-RR-362; PHS-CPA-22-69-62
Stock Number PB-198 204
OCLC Number 37427612
Additional Subjects ( Air pollution ; Monitors) ; ( Raman spectroscopy ; Air pollution) ; ( Sulfur dioxide ; Monitors) ; ( Nitrogen oxides(NO) ; Monitors) ; Flue gases ; Lasers ; Infrared spectrometers ; Scattering ; Water vapor ; Oxygen ; Feasibility ; Laser spectroscopy ; Air pollution detection
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EKBD  EPA-APTD-0658 Research Triangle Park Library/RTP, NC 08/15/1997
ELBD RPS EPA APTD-0658 repository copy AWBERC Library/Cincinnati,OH 04/13/2015
ESAD  APTD-0658 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-198 204 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 42, A-6 pages : illustrations, 1 photograph ; 28 cm
The feasibility of using laser Raman scattering to remotely monitor the emission of NO and SO2 from large stationary sources such as electric power plants was studied. Since no previous experimental measurement of the Raman scattering cross-sections was known to have been made for either NO or SO2, these cross-sections were measured in the laboratory using a 3371 A pulsed nitrogen laser as the Raman exciting source. Using N2 as a normalizing standard, the results are best fit by a NO to N2 Raman cross-section ratio of 0.5 + 0.1 and a SO2 to N2 Raman cross-section ratio of 2.4 plus or minus 0.3. In addition to the cross-section measurements, a field study was carried out with a laser Raman spectrometer utilizing a 3371 A pulsed nitrogen laser installed in a van at the site of large electric power plant. Raman spectra of N2, O2, H2O and CO2 were obtained from the power plant stack plume at a slant range of 625 feet without interference and detailed field procedures have been developed which permit quantitative profiles of the concentration of these molecules in the plume to be routinely obtained. However, NO and SO2 were not observed in the field study, due primarily to the insufficient stray light rejection ratio of the monchrometer used in the present system. (Author)
"Prepared for National Air Pollution Control Administration, Department of Health, Education and Welfare." Prepared by Avco Everett Research Laboratory under Contract Number CPA 22-69-62. "November 1970." Includes bibliographical references.