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Hydrogen Sulfide and Nonmethane Hydrocarbon Emissions from Broiler Houses in the Southeastern United States

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan

Citation:  2008 Providence, Rhode Island, June 29 – July 2, 2008  084417.(doi:10.13031/2013.25177)
Authors:   Hong Li, Robert T Burns, Hongwei Xin, Richard S Gates, Steve Trabue, Douglas G Overhults, Lara Moody, John Earnest
Keywords:   Hydrogen sulfide, nonmethane hydrocarbon, emission, broiler, air quality

Hydrogen sulfide (H2S) and nonmethane hydrocarbon (NMHC) emissions from two mechanically ventilated commercial broiler houses located in the southeastern United States were continuously monitored over 12 flocks for a one-year period during 2006-2007 as a joint effort between Iowa State University and the University of Kentucky. H2S and NMHC concentrations were measured using UV-Fluorescence H2S analyzers and methane/nonmethane/total hydrocarbon dual flame ionization detector gas chromatographs. Ventilation rates in each house were measured continuously by monitoring building static pressure and operational status of all ventilation fans in conjunction with individual performance curves developed and verified in situ using a Fan Assessment Numeration System (FANS) unit. United States EPA methods TO-15 and TO-17 were used for the nonmethane hydrocarbon compound speciation. The top-25 compounds are presented. The overall mean H2S and NMHC emission rates for a one-year period were 65.7 42 g/d-house and 0.76 0.43 kg C3H8/d-house, respectively. Annual H2S emission for the two broiler houses (including downtime emissions) averaged 19.2 kg per year per house or 0.147 g per bird marketed when the birds were marketed at 52 days of age with a stocking density of 11.8 bird per m2 (1.1 bird per ft2). Annual NMHC emission averaged 231 kg per year per house (510 lb per year per house) or 1.77 g per bird marketed.

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