Two bioaerosol sampling methods (Andersen sampler and filtration sampler) were compared. The two samplers were used to assess the bioaerosol loads in two swinefinishing barns. They were similar in termsof the species of microorganisms sampled.The persistent strains of microorganismswere various species of the following genera:Staphylococcus, Pseudomonas, Bacillus,Listeria, Enterococcus, Nocardia, Lactobacillus, and Penicillium. However, theuse of Andersen sampler resulted in significantly higher bioaerosol concentrations than the filtration sampler. Thus, it appears that filtration sampling can be used for a qualitative survey of bioaerosols in swine barns while the Andersen sampler is suitable for both quantitative and qualitative assessments.
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