Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Remote Fourier Transform Infrared Air Pollution Studies.
Author Herget, William F. ; Brasher, James D. ;
CORP Author Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1980
Report Number EPA-600/J-80-244;
Stock Number PB81-165847
Additional Subjects Air pollution ; Remote sensing ; Concentration(Composition) ; Infrared spectroscopy ; Calibrating ; Acetylene ; Ethylene ; Formaldehyde ; Sulfuric acid ; Sulfur dioxide ; Hydrogen fluoride ; Hydrogen chloride ; Design criteria ; Performance evaluation ; Reprints ; Fourier transform spectroscopy ; Longpath optical measurements
Library Call Number Additional Info Location Last
NTIS  PB81-165847 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 9p
A commercial Fourier transform infrared interferometer system has been installed in a van and used to make longpath absorption and single-ended emission measurements of gaseous pollutant concentrations at a variety of pollutant sources. The interferometer system is described and results of recent emission measurements of a jet engine, brick kiln, gypsum pond, and industrial stacks are presented. The system covers the infrared spectral region from 650 to 6000/cm at a maximum resolution of 0.06/cm. In the absorption mode, many gaseous pollutants can be detected at parts-per-billion levels m. over a one-kilometer path. In the emission mode, warm gases exiting industrial stacks can be detected at parts-per-million levels. The temperature of the stack gases can be determined directly from the spectra. In the jet engine measurements, acetylene, ethylene, and formaldehyde (among others) were observed; H2SO4, SO2, HF and HCl were among the species seen at the brick kiln; and remotely determined temperatures were within ten percent of instack values.