||Air Pollution Measurement by Fourier Transform Spectroscopy.
Hanst, Philip L. ;
||Environmental Sciences Research Lab., Research Triangle Park, NC.
Air pollution ;
Gas analysis ;
Chemical analysis ;
Infrared spectroscopy ;
Air pollution detection ;
Long path optical measurements ;
Fourier transform spectroscopy
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Fourier transform spectroscopy substantially reduces the limitations on infrared methods of pollution measurement. EPA has used long path cells and Fourier transform spectrometers for pollutant measurement both in the laboratory and in the field. Labile pollutants are best measured in the open air using folded paths of one kilometer or more. Stable pollutants are best measured in miniature folded-path cells after concentration and separation from the main gases in the air. Examples of ambient air pollution measurement are given.