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Proceedings Paper

Estimation of VOC emission rates from FTIR measurements and whole-air canister data
Author(s): Ray E. Carter Jr.; Dennis D. Lane; Glen A. Marotz; Michael F. Davis; Jody L. Hudson; Charles T. Chaffin Jr.; Timothy L. Marshall; Robert M. Hammaker; William G. Fateley
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Paper Abstract

Methods of estimating VOC emission rates from a point source are being field tested by the University of Kansas, in cooperation with Region VII of the U.S. EPA and Kansas State University. The methods use path-integrated VOC concentrations, meteorological data, and a form of the Gaussian dispersion equation. VOC concentrations were derived both from a whole-air canister sampling method, with subsequent GC analysis, and from open-path FTIR measurements; estimated emission rates produced from the two analytical methods were compared. Canister-derived concentrations provided higher mean estimation accuracies than did FTIR measurements for both 1, 1, 1-Trichloroethane and toluene; however, for a third data set consisting of all other compounds released, FTIR measurements provided higher values. Estimation accuracy also was evaluated as a function of atmospheric stability and downwind distance; accuracy generally increased and variability decreased as stability increased; accuracy was better at longer than at 50 meters.

Paper Details

Date Published: 31 May 1995
PDF: 13 pages
Proc. SPIE 2365, Optical Sensing for Environmental and Process Monitoring, (31 May 1995); doi: 10.1117/12.210797
Show Author Affiliations
Ray E. Carter Jr., Univ. of Kansas (United States)
Dennis D. Lane, Univ. of Kansas (United States)
Glen A. Marotz, Univ. of Kansas (United States)
Michael F. Davis, U.S. Environmental Protection Agency (United States)
Jody L. Hudson, U.S. Environmental Protection Agency (United States)
Charles T. Chaffin Jr., Kansas State Univ. (United States)
Timothy L. Marshall, Kansas State Univ. (United States)
Robert M. Hammaker, Kansas State Univ. (United States)
William G. Fateley, D.O.M. Associates, Inc. (United States)

Published in SPIE Proceedings Vol. 2365:
Optical Sensing for Environmental and Process Monitoring
Orman A. Simpson, Editor(s)

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