Summary of Ammonia and Particulate Matter Emission Factors for Poultry Operations
Limited data on pollutant emissions from poultry operations are available to assess the effect of these operations on the environment and to put their contribution in perspective with other sources of pollutants. To alleviate this problem, numerous studies at various poultry facilities have been undertaken to improve the knowledge base in quantifying emissions of NH3 and size-fractionated particulate matter (PM). For these emission data to be of practical use for government agencies and policy makers, the emission rates must be reported as an emission factor with a production unit that enables the emissions from one poultry operation to be correlated to another poultry operation. This paper presents a compilation of NH3 and PM emission data from several studies in the form of emission factor on a per-500 kg of live weight or animal unit basis. In addition, best management practices that lower pollutant emissions from poultry operations have been reported along with their effectiveness at reducing NH3 and PM. Unfortunately, the compiled data were insufficient to characterize the variability in emissions caused by differences in house design, suggesting that more studies are needed to complete a comprehensive emission inventory. Once complete, this inventory will enable poultry producers to estimate emissions from their facilities and, if necessary, select
management practice(s) to lessen their emissions of NH3, PM, or both.
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12 August 2010
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