Record Display for the EPA National Library Catalog


Main Title Innovative Approach for Measuring Ammonia and Methane Fluxes from a Hog Farm Using Open-Path Fourier Transform Infrared Spectroscopy.
Author Harris, D. B. ; Thompson, E. L. ; Vogel, C. A. ; Hashmonay, R. A. ; Natschke, D. ;
CORP Author ARCADIS Geraghty and Miller, Inc., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Publisher 2000
Year Published 2000
Report Number EPA-68-C-99-201; EPA/600/A-01/059;
Stock Number PB2002-100040
Additional Subjects Air pollution sampling ; Ammonia ; Methane ; Gases wastes ; Swine ; Hogs ; Emission factors ; Farms ; Measuring instruments ; Spectroscopy ; Fourier transform ; Computed tomography ; Remote sensing ; Fluxes ; Odors ; Air pollution control ; Study estimates ; Lagoons ; Open-path Fourier transform infrared(OP-FTIR) ; Stationary sources
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB2002-100040 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 10p
The paper describes a new approach to quantify emissions from area air pollution sources. The approach combines path-integrated concentration data acquired with any path-integrated optical remote sensing (PI-ORS) technique and computed tomography (CT) technique. In this study, and open-path Fourier transform infrared (OP-FTIR) instrument sampled path-integrated concentrations along five radial beam paths, in a vertical plane downwind from an area source. The innovative CT technique, which applies the smooth basis function minimization (SBFM) method to the beam data in conjunction with measured wind data, was used to estimate the total flux from the area source. Results are presented from a field experiment designed for quantifying ammonia and methane emissions before and after a bioactive cover was added to control odors from a hog farm waste lagoon near Jacksonville, NC. This field study provides a new insight to the processes taking place in these facilities. The suggested technologies may provide robust and real-time estimates of gaseous emission fluxes and near-field dispersion parameters for near-ground level area sources.