Record Display for the EPA National Library Catalog

RECORD NUMBER: 44 OF 113

OLS Field Name OLS Field Data
Main Title Field Study on Application of Laser Coincidence Absorption Measurement Techniques.
CORP Author General Electric Co., Syracuse, N. Y. Electronics Lab.
Year Published 1972
Report Number EPA-EHSD-71-8; 0981;
Stock Number PB-210 671
Additional Subjects ( Air pollution ; Infrared detection) ; ( Gas detectors ; Infrared detection) ; ( Ethylene ; Gas detectors) ; ( Ammonia ; Gas detectors) ; Field tests ; Performance evaluation ; Carbon dioxide lasers ; Infrared lasers ; Absorption spectra ; Errors ; Electromagnetic interference ; Design ; Transmittance ; Remote sensing ; Air pollution detection ; Laser spectroscopy
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB-210 671 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 75p
Abstract
The purpose of the research was to conduct a field study on the merits and limitations of laser coincidence absorption measurement technique applied to long-path monitoring of a gaseous pollutant in an urban atmosphere. Two gaseous pollutants, ethylene and ammonia, were selected and spectral interferences identified. Using a spectrally tunable CO2 laser, measurements and system evaluation were conducted. Selected pollutant concentrations and spectral interference effects were recorded. Concurrent point measurements were made by gas chromatograph for ethylene concentrations. Overall system effectiveness and test results were analyzed and performance evaluated.