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Modeling Odor Dispersion From a Swine Facility Using AERMOD

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

Citation:  International Symposium on Air Quality and Waste Management for Agriculture, 16-19 September 2007, Broomfield, Colorado  701P0907cd.(doi:10.13031/2013.23894)
Authors:   Dennis D Schulte, Manish R Modi, Christopher G Henry, David P Billesbach, Richard R Stowell, Steve J Hoff, Larry D Jacobson,
Keywords:   KEYWORDS: odors, modeling, air quality, swine

Meteorological conditions, odor emissions, and ambient odor levels at a four-barn, swine finishing facility in Iowa were measured in the summer and fall of 2004. This paper compares ambient odor levels measured using a Nasal Ranger compared to those predicted by AERMOD, a relatively new air dispersion model. Scaling factors needed to adjust predicted odor levels to those observed ranged from 1.66 to 3.12, depending on the source configuration used by the model. Predicted odors levels from the point source configuration required the smallest scaling factor (1.66) and accounted for the greatest percentage of variability in the data when compared to Nasal Ranger readings.

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