Relative to this project, what one really wants to know about a swine facility is whether odor from the unit can be predicted, how good the prediction would be, and how difficult it will be to predict it. It is of value to know whether different sophisticated methods of measuring parameters assumed to be important in odor characterization can be compared and whether they give similar results. Finally, it would be useful to know how much a factor dust is in odor. The results of this research lead us to say that dust is not significant in predicting odor. It was the weakest of all the items chosen for analysis. The devices used to measure gases in the facility gave very consistent although slightly different results. They both worked well, and results were easy to analyze. Finally, in this experiment, odor units (strength of odor) could be predicted with reasonable accuracy given four measurements in order of significance: concentration of methane, concentration of ethylphenol, concentration of ammonia, and concentration of phenol. Two of the concentrations (methane and ammonia) are easy to obtain and two (ethylphenol and phenol) are difficult to obtain.