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Published online 16 October 2007
Published in J Environ Qual 36:1585-1590 (2007)
DOI: 10.2134/jeq2007.0167
© 2007 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Quantifying Ammonia Emissions from a Cattle Feedlot using a Dispersion Model

S. M. McGinna,*, T. K. Fleschb, B. P. Crennac, K. A. Beauchemina and T. Coatesa

a Agriculture and Agri-Food Canada, 5403–1 Ave South, Lethbridge, Alberta, Canada T1J 4B1
b Dep. of Earth and Atmospheric Sciences, Univ. of Alberta, Edmonton, Canada
c Thunder Beach Scientific, Nanaimo, British Columbia, Canada


Figure 1
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Fig. 1. Map showing the feedlot layout.

 

Figure 2
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Fig. 2. Diel pattern generated from the 15-min interval data that were averaged over all days for ammonia emission and the standard deviation of the emission.

 

Figure 3
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Fig. 3. Correlation between average hourly ammonia emission and sensible heat flux density (top), and wind speed (bottom) using data from the entire study period.

 

Figure 4
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Fig. 4. The diel ammonia emission pattern on 21 September, which was a day with no rain (top), 22 September when rain occurred at mid-day (middle), and 23 September with no rain (bottom).

 





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Copyright © 2007 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.